Splunk 6 Knowlede Manager, Splunk Certification, Splunk Power Users Certification – Flashcards
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Matching search terms are ________ in Splunk search results.
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highlighted
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Which of the following search controls will re-run the search?
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zoom out
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Default fields are added to every event in Splunk at INDEX time. (True or False)
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true SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/Data/Aboutdefaultfields "The fields that Splunk adds automatically are known as default fields."
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These are the default selected fields.
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host, source and sourcetype SOURCE: http://docs.splunk.com/Documentation/Storm/Storm/User/Usefieldstosearch "Notice that default fields host, source, and sourcetype are selected"
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These 2 searches will return exactly the same results; SEARCH 1: user=ROOT SEARCH2: USER=ROOT (True or False)
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false
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Splunk alerts CANNOT be based on real-time searches. (True or False)
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false SOURCE: http://docs.splunk.com/Splexicon:Realtimealert "An alert that is based on a real-time search."
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Running a saved report ________.
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returns a fresh result set.
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Which of the following actions is not a valid option for reports?
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rename
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Once you have defined the rows in the pivot editor you can also split the columns to add fields to the resulting table. (True or False)
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true SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/PivotTutorial/Createandsavepivot
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The following searches will return the same result: SEARCH 1: 404 SEARCH 2: status=404. (True or False)
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false
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This command allows you to break multi-line events into individual events at search time.
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multikv
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By default, the top command returns the top _______ values.
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10
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Which of the following searches will show the number of bytes used by each host?
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sourcetype=*memorylog* | stats sum(bytes) by host SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/SearchReference/Stats
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These kinds of charts represent a series in a single bar with multiple sections.
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split series SOURCE: http://answers.splunk.com/answers/6317/multiple-searches-on-one-chart.html
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Hovering over a VALUE IN THE CHART LEGEND, ________.
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highlights the field value across the chart
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What is wrong with this search? SEARCH: usage=Violation | timechart count(usage)
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nothing it is a valid search
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What is wrong with this search command? COMMAND: sourcetype=cisco_w* | stats count by s_hostname where count > 20
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missing | before where SOURCE: http://answers.splunk.com/answers/87000/variable-where-clause.html
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What is wrong with this eval command? COMMAND: | eval usage = if(usage = Business, Business, Other)
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the argument must be enclosed in quotes SOURCE: http://answers.splunk.com/answers/87652/eval-macro-with-string-argument.html
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Which if the following commands is more efficient and better supported by MapReduce.
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stats SOURCE: http://answers.splunk.com/answers/53748/alternative-to-transaction-command.html
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If a field in a lookup table represents a(n) _______, you can create a time based lookup.
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timestamp SOURCE: docs.splunk.com/Documentation/Splunk/latest/User/CreateAndConfigureFieldLookups "if the field matching depends on time information (a field in the lookup table that represents the timestamp)."
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If you have selected to 'accelerate' a search but it is not currently viable to do so, Splunk will continue to check periodicallyy and automatically build the summary once it is appropriate. (True or False)
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true SOURCE: http://docs.splunk.com/Documentation/Splunk/6.1.3/Knowledge/Manageacceleratedsearchsummaries#How_reports_qualify_for_acceleration "If you define a summary and Splunk Enterprise does not create it because these conditions are met, it continues to periodically check to see if conditions improve"
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If a field alias is required for multiple source types _______.
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only one field alias needs to be created SOURCE: http://answers.splunk.com/answers/2605/field-aliasing-using-host-tags.html
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_______ normalize field/value pairs, whereas ________ normalizes fields with similar data and different field names.
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field aliases, tags
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Calculated fields do not require special syntax, they can be used in searches like any other extracted field. (True or False)
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true
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SEARCH workflow action can use a different time range than the original search.
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True SOURCE: http://docs.splunk.com/Splexicon:Workflowaction "Launch secondary Splunk searches that use one or more field values from selected events."
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When the search criteria will not change you should us a(n) _________.
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report
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A macro _______ contain a search within its destination.
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can SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/Search/Usesearchmacros#Create_search_macros_in_Splunk_Web "Your search macro can be any chunk of your search string or search command pipeline that you want to re-use as part of another search. "
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It is not possible to have a data model that includes only transaction objects.
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False
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Object ______ are a set of fields associated with the data set.
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attributes SOURCE: http://docs.splunk.com/Splexicon:Attribute "An object's attributes are fields that are associated with the dataset that the object represents."
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Pivot users cannot use child objects, they must use a parent object. (True or False)
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false SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/Knowledge/Aboutdatamodels "Your Pivot users can then use these child objects to design reports with datasets that already have extraneous data prefiltered out."
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Attributes can be defined using EVAL expressions. (True or False)
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true SOURCE: http://docs.splunk.com/Splexicon:Attribute "Eval expression: A field derived from an eval expression. Definitions for these attributes often involve one or more auto-extracted fields. "
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Splunk _______ can create custom roles.
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administrators SOURCE:http://docs.splunk.com/Documentation/Splunk/latest/Security/Aboutusersandroles "admin: this role is intended for administrators who will manage all or most of the users, objects, and configuration and comes predefined with the most assigned capabilities."
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This field in an event specifies the NAME of the input file or stream.
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source SOURCE: http://docs.splunk.com/Splexicon:Source "source consists of the full pathname of the file or directory"
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These are displayed at the end of each event in the search results.
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selected fields SOURCE: http://docs.splunk.com/Documentation/Storm/Storm/User/Usefieldstosearch "The selected fields are displayed under your search results if they exist in that particular event."
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The splunk search language supports the *wildcard. (True or False)
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true SOURCE: http://dev.splunk.com/web_assets/developers/pdf/splunk_reference.pdf "wildcards (e.g., fail* will match fail, fails, failure, etc.)"
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The time range specified for a real time search defines the ______.
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amount of data shown on the timeline as data streams in in SOURCE: http://docs.splunk.com/Splexicon:Realtimesearch "Time bounds for real-time searches are constantly updating"
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You must have at least this role to share your knowledge objects.
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power user SOURCE: http://docs.splunk.com/Documentation/WebLog/1.0/User/Sharefieldextractions "By default only the Admin and Power roles can set permissions for knowledge objects"
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Field discovery occurs at ______ time.
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search SOURCE: http://docs.splunk.com/Splexicon:Fielddiscovery "The process by which Splunk Enterprise recognizes and extracts key=value pairs from event data at search time"
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The fields sidebar ______. Select all that apply
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Displays the list of selected fields. Can be used to create a quick chart of top values by time Can be used to see the top values in a field Displays the list of interesting fields
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This search user=* ______.
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display only events that contain a value for a user
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Which of the following is the correct way to use a tag X in a search?
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tag=X SOURCE: http://www.splunk.com/view/SP-CAAAGYJ SOURCE: http://docs.splunk.com/Splexicon:Tag "You could tag these values "homeoffice" and then search on tag=homeoffice to find all the events with field values that have the homeoffice tag."
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Alerts can be defined to trigger only when a certain number of unique sources are returned.
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true SOURCE: http://docs.splunk.com/Documentation/Splunk/latest/Alert/Definescheduledalerts Section: "Basic conditional alert"
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______ represent a set of events in the hierarchical structure.
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data model objects SOURCE: http://docs.splunk.com/Splexicon:Datamodelobjectc "Data model objects are hierarchical. They are arranged in parent-child relationships."
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Which of the following would match this search? Select all that apply. SEARCH: "web error"
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there is an error there is a web request
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Search terms are case ______.
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sensitive
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Internal fields such as _raw and _time must be specifically removed with the fields - command; simply not including them in the fields + does not exclude them from extraction. (True or False)
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true SOURCE: http://docs.splunk.com/Splexicon:Internalfield "A default field that contains general information about the events that Splunk Enterprise indexed"
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This command allows you to extract fields at search time; these fields do not persist as knowledge objects.
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erex SOURCE: http://docs.splunk.com/Documentation/Splunk/5.0.3/SearchReference/Erex "Automatically extracts field values similar to the example values. "
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The 'as' clause can be used with this command.
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stats SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/SearchReference/Stat Example. stats (stats-function(field) [as field])+ [by field-list]
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This search command returns an unlimited number of results. SEARCH: error | top host limit = 0
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true (spaces?) SOURCE: http://answers.splunk.com/answers/52583/setting-top-limit-to-display-all-fields.html "Specifies how many tuples to return, "0" returns all values. Default is "10"."
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Which of the following searches returns a SINGLE VALUE representing the number of items purchaes?
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sourcetype=access_* action=purchase | stats count
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When a search returns ______, you can view the results as a chart.
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statistical values SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/SearchReference/Stats
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When using a split series on a chart, the series MUST be displayed using the STACKED option. (True or False)
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false
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By default, the timechart command plots time on the ______.
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x-axis SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/SearchReference/Timechart "Create a chart for a statistical aggregation applied to a field against time as the x-axis"
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This command converts results into a format suitable for graphing.
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xyseries SOURCE: http://docs.splunk.com/Documentation/Splunk/latest/SearchReference/Xyseries "Converts results into a format suitable for graphing."
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This function can be used with the eval command to reduce the number of decimal points displayed.
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round SOURCE: http://answers.splunk.com/answers/8046/rounding-decimal-places.html "You can use round as follows"
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Results from the transaction command can include events from multiple applications or hosts. (True or False)
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true SOURCE: http://docs.splunk.com/Splexicon:Transaction "A group of conceptually-related events that spans time."
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The command shown here does which of the following? COMMAND: | inputlookup products.csv
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displays the data in a lookup file products.csv SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/SearchReference/Inputlookup "Loads search results from a specified lookup table. The name of the lookup file (must end with .csv or .csv.gz)."
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There are cases where splunk allows you to accelerate a search, but a summary is not created. (True or False)
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false SOURCE: http://docs.splunk.com/Splexicon:Reportacceleration SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/Knowledge/Aboutsummaryindexing "Report acceleration is similar to summary indexing, in that it accelerates searches building a separate summary of the data"
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Users can create objects that are shared across ALL apps. Select all that apply.
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power users administrators SOURCE: http://docs.splunk.com/Documentation/Splunk/latest/Knowledge/Manageknowledgeobjectpermissions "By default, only users with a power or admin role can share and promote knowledge objects"
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Which action is not valid for field aliases?
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rename
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When several source types contain a field with similar data, use ______ to make correlation easier.
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field aliases SOURCE: http://docs.splunk.com/Splexicon:Alias "You can use field aliasing to normalize different field names to one name and simplify searching for those related fields."
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Field extractions created using ______ are re-usable in multiple searches.
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Interactive field extractor (IFX) SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/Knowledge/ExtractfieldsinteractivelywithIFX "After you save this input, you can enter the Field Extractor and extract fields from the events associated with the vendors source type. "
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This workflow action uses fields from the results in a secondary search.
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GET SOURCE: http://docs.splunk.com/Splexicon:Workflowaction SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/Knowledge/CreateworkflowactionsinSplunkWeb#Set_up_a_GET_workflow_action "allowing you to pass information to an external web resource, such as a search engine or IP lookup service"
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The eventtype field can be added as a selected field. (True or False)
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true
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A macro ______ contain commands within its definition.
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can SOURCE: http://docs.splunk.com/Documentation/Splunk/6.2.0/Search/Usesearchmacros#Create_search_macros_in_Splunk_Web "Your search macro can be any chunk of your search string or search command pipeline that you want to re-use as part of another search. "
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5 Main components of Splunk ES
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Index Data, Search & investigate, Add knowledge, Monitor & Alert, Report & Analyze.
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What does index data do? (3)
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1. Collects data 2. Label data with source type 3. Stored in splunk index
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Three main roles in splunk? (3)
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Admin, Power, User
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An admin does what?
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Install apps, create knowledge objects for all users (what apps a user will see by default)
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A power user does what?
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Creates and shares knowledge objects for users of app, real-time searches
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A Splunk user does what?
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Only see own knowledge objects and those shared to them.
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Apps in Splunk?
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1. Pre-built dashboards, reports, alerts and workflows 2. In-depth data analysis for power users 3. Search & Reporting
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What does the search and reporting app do in splunk?
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Creates knowledge objects, reports, and dashboards
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The seven main components in splunk searching and reporting?
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1. Splunk bar 2. App bar 3. Search bar 4. Time range picker 5. How to search panel 6. What to search panel 7. Search History
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What does the time range picker do?
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Allow search by preset times, relative times. Real time (earliest, latest), date range. Retrieve events over a specific time period.
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Limiting search by ___________ is key to faster results and is a best practice
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time
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The time range picker is set to _________ by default.
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All-time
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Search jobs are available after ____ minutes by default.
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10
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________ commands create statistics and visualizations.
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Transforming
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________ tab is default tab for searches
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Event
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What are the three main search modes?
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Fast, Verbose, and Smart
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_______ mode discovery off for event searches. No event or field data for stats searches.
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Fast
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______ mode all events and field data; switches to this mode after visualization
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Verbose
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______ mode (default-based on search string data). Field discovery ON for event searches. No event or field data for stats searches.
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Smart
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This search action button "Job V" does what?
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Edit job settings, send job to background, inspect and delete job.
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Saved searches are set to ______ by default.
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private
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Timestamp seen in events is based on______setting in user account profile
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time zone
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List the three booleans
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AND OR NOT
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________boolean is used if none is implied.
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AND
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Exact phrases use______
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quotes
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Use a _______ for searching a string with quotes in the string.
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Backslash Example: info="user "chrisV4" not in database" info="user"chrisV4" not in database "
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Three default search fields automatically selected?
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Source, Host, Sourcetype
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_______ sidebar shows all field extracted at search time.
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Fields
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_______ Fields appear in event, default-host, sourcetype, source
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Selected
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_______ fields have values in at least 20% of the events
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Interesting
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Clicking on a field shows a list of _______, ________, and ________.
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values, count, and percentage
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These fields can launch a quick report by clicking on them (4)
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top values, top values by time, rare values, events with this field
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Use ______ to limit search to only one sourcetype
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sourcetype=
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Field names _____ case sensitive- Values _______ case sensitive
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are, are not
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The field operators are used with numerical string values (symbols)
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= != -->
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These symbols are only used with numerical values?
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> >= <
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Using _____ and ____ (symbols) would return the same results.
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NOT, !=
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Use _______ to nest boolean searches
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parenthesis
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______ is better than exclusion
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inclusion
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Use _____ for searches
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time
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When creating reports you can edit, clone, embed, and delete under the ______ tab
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report
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What are search commands used for?
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Creating charts, computing statistics, and formatting
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Top command returns top ____ results with a count and percentage
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10
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What are the three ways to create visualizations?
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1. Select a field from the fields sidebar 2. Use the pivot interface 3. Use the Splunk search language commands in the search bar with statistics and visualization tabs
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Save visual reports as _______ or _______
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report or dashboard pannel
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Dashboards are searches gathered together and can use _______input or ________ visualization
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form or custom
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________ is an action that a saved search triggers based on the results of the search
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Alert
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________ designs reports in simple interface without having to craft a search string
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Pivot
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Default time for pivot is ______
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all the time
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Data model is framework and ______ is interface to the data
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pivot
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________ interface is the total amount of purchases, documentation actions, job actions, tools to filter/slice up data, and a side bar?
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Pivot
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_______ object is the main source of data
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Root
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_______ object acts like an AND boolean
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Child
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_________ pivot allows instant access to data without having a data model
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Instant
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Alerts combine a _______ search.
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Saved
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The alerts use a _______ search to check for events.
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saved
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Adjust the ______ type to configure how often the search runs
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alert
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Use ________ alert to check for events on a regular basis
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Scheduled
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_______ alert to monitor for events continuously
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Real-time
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A _______ action can notify you of a triggered alert and help you start responding to it
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alert
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Search terms include (6)
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Keywords, booleans, phrases, fields, wildcards, and comparisons.
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Comparison symbols
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=, !=, , >=
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______ is the most efficient filter
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Time
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Best practices to use while searching in Splunk (4)
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1. Time is the most efficient filter 2. More you tell search the better your results 3. Inclusion is better than exclusion 4. Filter as early as possible
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_____ are case insensitive. (components of search language)
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Search terms
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______ tell Splunk what we want to do with results (ex. stats) (components of search language)
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Commands
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______how we want to deal with results (ex. list) (components of search language)
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Functions
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______ variables to apply to function (ex. Product name) (components of search language)
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Arguments
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_______ how we want results defined. (components of search language)
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Clauses
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_____ is used to pass current results to the next component
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Pipe
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_________ command works from left to right
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Search
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Once and item is filtered _____ it is no longer available in the search string
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Out
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_____ command include or exclude fields from search results.
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Fields
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Exclude a field by using ______ symbol
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minus (-)
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Primary fields _______ and _______ will always be extracted, but can also be removed by using the minus symbol
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_time & _raw
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Field_____happens after field______only affecting displayed results.
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exclusion, extraction
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________ command retains searched data in a tabulated format
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table
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In regards to a rename command, once a field is renamed the ______ name is not available to later search commands
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original
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This command removes events with duplicate values
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Dedup
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This command displays results in ascending or descending order.
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Sort
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This command combine fields from external sources to searched events, based on event field
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Lookup
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This command produces statistics of a search result
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Stats command
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This command shows number of events matching search criteria
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Stats count
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This command is the sum of numerical value
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Stats Sum command
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This is a command that preforms stats aggregation against time
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Timechart command
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___ split data by an additional field
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by
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Usenull = _____ will remove NULL values
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f
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Admin, Power, User
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Out of the box there are 3 main roles
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Click Data Summary in the Searching & Reporting app
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How can you view all sourcetypes?
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Host, Sources, and Sourcetypes on separate tabs
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What is shown in the Data Summary?
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The local timezone set in your profile.
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What timezone is data displayed for, in searches?
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insensitive
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Search terms are case sensitive or insensitive?
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AND, OR, NOT
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What booleans are supported in splunk search?
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!=
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Symbol for "does not equal"
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Reverse chronological order (newest first)
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In what chronological order are events displayed, after a search?
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timestamp, host, source, sourcetype
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Each event has these field value pairs.
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s
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Time range abbreviations for seconds
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m
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Time range abbreviations for minutes
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h
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Time range abbreviations for hours
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d
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Time range abbreviations for days
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w
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Time range abbreviations for weeks
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mon
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Time range abbreviations for months
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y
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Time range abbreviations for year
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-5m@m
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Current search time is 09:37:12. What is the time range equation to search back 5 minutes on the minute?
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earliest and latest eg: earliest=-h latest=@d
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What are the commands for specifying a time range in a search string?
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No, it only filters the results
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Does narrowing the time range by dragging the selection bars across the timeline re-execute the search?
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CSV, XML, JSON
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What formats may search results be exported to?
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Instead of returning all the results, from a search, it returns a random sampling of events.
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What does "event sampling" do?
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Each event, found in a search, has a 1 in 100, or 1% change of being included in the sample result set.
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What does an event sample of 1:100 indicate?
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searchable key/value pairs from event data.
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What is a Field?
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Based on sourcetype and key/value pairs found in the data.
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How does Splunk discover fields?
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20% of events have these fields present in them.
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What percentage of search results have the fields listed under "Interesting Fields"?
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Fast, Smart, Verbose
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What are the three search modes?
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Smart
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What is the default search mode?
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Case sensitive
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Field names are case sensitive or insensitive?
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True
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True/False: Splunk is subnet/CIDR aware for IP fields?
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Returns everything except the events matching the NOT boolean
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How does NOT affect search results?
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One or more panels displaying data visually in a useful way.
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What is a dashboard?
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rename
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What command changes the name of a field in search?
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When including spaces or special characters
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When should quotes be used around values in search?
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fields
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What command allows you to include/exclude fields in your search?
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+ (include) occurs before field extraction and improves performance - (exclude) occurs after field extraction, and no performance improvement
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What is the difference between +/- with the fields command?
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The limit option e.g: | sort limit=20 -categoryID, product_name
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How can you reduce the returned results with the sort command?
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top
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What command finds the most common values of a given field?
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10
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How many results are returned by the top command, by default?
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count & percent
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What two columns are automatically returned by the top command?
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limit (limit=0 returns unlimited results)
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What option changes the number of results returned by the top command?
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rare
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What command returns the least common field values?
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stats
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What command allows you to calculate statistics on data that matches your search criteria?
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as
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What option allows you to rename fields, within the stats command?
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list
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What stats command shows all field values for a given field?
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values
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What stats command shows all unique field values for a given field?
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chart or timechart
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To get multi-series tables you need to set up the underlying search with commands like...
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line, area, column, bar, bubble, scatter, pie
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What are the seven chart types?
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tostring
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What eval command allows you to format for currency?
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transaction
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What command allows you to create a single event from a group of events that share the same value in a given field?
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1,000
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Max events displayed by transaction command
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case_sensitive_match
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What is the transforms.conf flag to switch whether or not a lookup field value is case-sensitive or not?
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Field Aliases
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What is a way to normalize data over any default field?
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Tags
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What are nicknames that you create for related field/value pairs?
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Settings > Tags > List by field value pair
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Where can you view a list of all Tags?
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Event Type
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A method of categorizing events based on a search
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Workflow Actions
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What may be run from an event in your search results to interact with external resources or run another search?
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GET
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Workflow action to pass information to an external web resource.
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POST
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Workflow action to send field values to an external resource.
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Search
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Workflow action to use field values to perform a secondary search.
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backticks
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Macros must be surrounded with what character?
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events, searches, transactions
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What three datasets make up a Data Model?
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Common Information Model (CIM)
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What tool provides a methodology to normalize data?