My Systems Analysis Ch. 12 – Flashcards
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Preset ____ determine whether a firewall will allow network traffic to pass.
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rules
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____ include the volume of online data, the number of records accessed, and the number of transactions processed in a given time period.
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Metrics
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The ____ is the configuration of a system documented at the beginning of the project and consists of all necessary system requirements and design constraints.
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functional baseline
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With a release methodology, even when changes would improve system efficiency or user productivity, the potential savings must wait until the next release date, which might increase operational costs.
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True
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____ describes the amount of data that a system can transfer in a fixed time period.
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Bandwidth
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As shown in the accompanying figure, ____ when it becomes clear that the company plans to replace the system.
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adaptive and corrective maintenance expenses increase rapidly, but perfective maintenance typically decreases
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A(n) ____ is an unauthorized attempt to increase permission levels.
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privilege escalation attack
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____ means examining the whole in order to learn about the individual elements.
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Analysis
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A ____ is a formal reference point that measures system characteristics at a specific time.
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baseline
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If significant changes take place in an existing system or if a new version is released, the IT department might develop a ____.
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user training package
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The procedure for minor adaptive maintenance is similar to routine corrective maintenance.
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True
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____ activities include changing programs, procedures, or documentation to ensure correct system performance; adapting the system to changing requirements; and making the system operate more efficiently.
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Maintenance
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____ means that in risk control, nothing is done.
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Acceptance
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____ involves studying the parts to understand the overall system.
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Synthesis
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When planning capacity, detailed information is needed about ____.
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the number of threats and critical risks posed to a system
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The ____ is responsible for assigning maintenance tasks to individuals or to a maintenance team.
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system administrator
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Companies with limited resources always consider new systems development, adaptive maintenance, and corrective maintenance less important than perfective maintenance.
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False
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Bandwidth requirements are expressed in bytes per minute.
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False
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____ costs include expenses for items such as supplies, equipment rental, and software leases.
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Operational
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Indications that a system has reached the end of its economically useful life include ____.
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operational costs and execution times are decreasing rapidly
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As the first step in capacity planning, analysts develop a current model based on the system's present workload and performance specifications.
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True
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____ expenses vary significantly during a system's operational life and include spending to support maintenance activities.
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Maintenance
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____ protects information from unauthorized disclosure and safeguards privacy.
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Confidentiality
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Successful, robust systems often need the most support because users want to learn the features, try all the capabilities, and discover how the system can help them perform their business functions.
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True
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Perfective maintenance usually is cost effective ____ the system's operational life.
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during the middle of
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When setting priorities, many IT managers believe that evaluating all projects together leads to the best possible decisions because ____.
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maintenance and new development require similar IT department resources
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When corrective action cannot occur immediately, users appreciate feedback from the system administrator and should be kept informed of any decisions or actions that affect their maintenance requests.
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True
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Retention periods can be a specific number of months or years, depending on legal requirements and company policy.
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True
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Requests for corrective and adaptive maintenance normally come from the IT department, while users usually initiate perfective maintenance.
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False
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Configuration management is sometimes referred to as change control.
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True
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Perfective maintenance can improve system reliability.
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True
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____ ensures that authorized users have timely and reliable access to necessary information.
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Availability
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As shown in the accompanying figure, once a system becomes stable, maintenance costs usually remain low and involve minor ____ maintenance.
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adaptive
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Perfective maintenance ____.
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involves changing an operational system to make it more efficient, reliable, or maintainable
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____ is a process for controlling changes in system requirements during software development.
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CM
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The ____ documents a system at the end of the design phase, identifies any changes since the beginning of the project, and includes testing and verification of all system requirements and features.
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allocated baseline
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As shown in the accompanying figure, maintenance expenses usually are high when a system is implemented because problems must be detected, investigated, and resolved by ____ maintenance.
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corrective
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Adaptive maintenance always is less difficult than new systems development because the enhancements need not work within the constraints of an existing system.
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False
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Which of the following is not an advantage of the release methodology?
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new features or upgrades are available more often
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The main objective of user training is to show users how to become service desk staff members.
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False
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In a typical system, the initial version of the system is 1.0, and the release that includes the first set of maintenance changes is version ____.
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1.1
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Although the procedures for corrective maintenance and adaptive maintenance are alike, minor corrective maintenance requires more IT department resources than minor adaptive maintenance.
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False
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Newly hired and recently promoted IT staff members often are assigned to maintenance projects because their managers believe that maintenance work offers a valuable learning experience.
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True
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In most organizations, ____ IT department effort goes into supporting existing systems and making them more valuable to users.
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more than half of all
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As the first step in capacity planning, analysts develop a current model based on the system's present workload and performance specifications.
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True
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Risk ____ develops safeguards that reduce risks and their impact.
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control
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Both adaptive and perfective maintenance activities decrease in a dynamic business environment.
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False
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To measure system performance, companies use ____ testing, which uses a set of standard tests on one system to compare its performance and capacity to that of other systems.
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benchmark
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A ____ is an internal or external entity that could endanger an asset.
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threat
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As enterprise-wide information systems grow more complex, configuration management becomes less and less useful.
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False
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Adaptive maintenance ____.
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adds enhancements to an operational system and makes the system easier to use
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____ prevents unauthorized users from creating, modifying, or deleting information.
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Integrity
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Bandwidth will not be measured in which of the following units?
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Dbps (decibits per second)
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Preventive maintenance ____.
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requires analysis of areas where trouble is likely to occur in order to avoid problems
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In a PKE environment, each user on the network has a pair of keys: a public key and a private key.
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True
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Risk ____ measures risk likelihood and impact.
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assessment
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When analysts learn different skills, the organization is more versatile and people can shift to meeting changing business needs.
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True
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Perfective maintenance usually is cost effective ____ the system's operational life.
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during the middle of
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A main objective of a service desk is to ____.
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provide answers to technical or operational questions make users more productive by teaching them how to meet their own information needs
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The systems support and security phase begins when a system becomes operational and continues until the system reaches the end of its useful life.
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True
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Using a release methodology increases the documentation burden.
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False
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A service desk is a highly effective replacement for traditional IT maintenance and support activities.
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False
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Application security requires an understanding of services, hardening, application permissions, input validation techniques, software patches and updates, and software logs.
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True
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