Network + Ch 1 RQ – Flashcards
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In the client-server model, what is the primary protocol used for communication between a browser and Web server?
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HTTP
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Which two-encryption protocols might be used to provide secure transmissions for browser and Web server communication?
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SSL and TLS
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Apache is a popular example of what type of network software?
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Web Server
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Which email protocol allows an email client to download email messages to the local computer
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POP3
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Which email protocol allows an email client to read mail stored on the mail server?
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IMAP4
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Which client-server application allows an administrator to control a remote computer but does not encrypt or secure the communication between client and server?
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Telnet
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Which application embedded in Windows operating systems allows remote control of a computer and uses the RDP secure protocol for transmissions?
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Remote Desktop
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What service provided by Windows Server 2012 R2 allows a computer to serve up applications to other computers on the network?
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RTP
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List three types of services a network might support that are considered part of unified communications or convergence?
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Conversational Voice, Streaming Live audio/video, and streaming stored audio and voice. Page 6
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A network consists of 10 computers, all running Windows 7 Professionals. One computer acts as a file server and serves up data to other computers on the network. Which networking model does the network use?
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They have a peer-to-peer (P2P) network model
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In question 11, suppose one computer is upgraded from Windows 7 Professional to Windows Server 2012 R2. Which networking model can the network now support that it could not support without the upgrade?
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They now have a client-sever network model, which allows them to access their data from any computer on the network that was not possible on the P2P network model.
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What is the name of the domain controller database that Windows Server 2012 R2 uses to store data about user access and resources on the network?
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Active Directory
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A network consists of seven computers and a network printer all connected directly to one switch. Which network topology does the network use?
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Star Topology
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In question 14, suppose a new switch is connected to the first switch by way of network cable and three computers are connected to the new switch. Which topology is now used?
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Star Bus Topology
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What are the fundamental distinctions between a layer 2 switch and router?
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Layer 2 switch operating on a local network while the router routes to an outside network.
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What are the fundamental distinctions between a node and a host?
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A host is a computer/device that has an application or data that is needed by other electronics while a node is any computer/device that can be addressed on the network
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What are the fundamental distinctions between a MAN and WAN?
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A MAN is a network that deals with communication within a specific area such as a metropolis area, while a WAN covers connection with in a greater geological sphere.
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What is a message called that is delivered by TCP? What is the message called that is delivered by UDP? At which layer do the two protocols work?
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The two protocols work on the 4th layer/Transport layer. The connection for TCP is called a connection-oriented protocol; while in UDP it is called connectionless protocol/best-effort protocol.
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Which type of address is used at the Transport layer to identify the receiving application?
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The transport layer identifies the receiving application through the port number.
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Is TCP or UDP normally used when streaming live video? Why?
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21. UDP because live video-streaming appliances are not designed with TCP streaming in mind
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At the Network layer, what is a message called?
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pdu
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What is the primary protocol used at the Network layer?
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TCP/IP
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At the Network layer, what type of address is used to identify the receiving host?
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IPV4
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What is a PDU called at the Link layer?
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Frames
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At the Link layer, which type of network address is used to identify the receiving node?
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Frame Check Sequence MAC
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Why is it important to wear an ESD strap when installing a server in a rack?
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It's important to wear an ESD strap because it equalizes the electrical potentials between you and the server
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A computer is unable to access the network. When you check the LED lights near the computer's network port, you discover the lights are not lit. Which layer of the OSI model are you using to troubleshoot this problem? At which two layers does the net- work adapter work?
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Physical Layer, Data Link Layer
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A user complains that he cannot access a particular Web site, although he is able to access other Web sites. At which layer of the OSI model should you begin trouble- shooting the problem?
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Application Layer
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A user complains that Skype drops her videoconference calls and she must reconnect. At which layer of the OSI model should you begin troubleshooting? Which OSI layer is responsible for not dropping the Skype connection?
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Session Layer, Application
