Review Questions Chapter 1

3.Apache is a popular example of what type of networking software? A. Web server B. Browser C. Email server D. Email client

A. Web server

What is the fundamental distinction between a Layer 2 switch and a router?

A Layer 2 switch belongs only to its local network, and a router belongs to two or more

Which email protocol allows an email client to read mail stored on the mail server? A. IMAP4 B. SMTP C. TCP D. POP3

A. IMAP4

At the Link layer, which type of network address is used to identify the receiving node?

Answer: Frame Check Sequence MAC

What is the fundamental distinction between a MAN and a WAN?

A MAN covers a small geographical area, and a WAN covers a large geographical area.

What is the fundamental distinction between a node and a host?

A host is a computer that hosts a resource on the network, and a node is any computer or device that can be addressed on the network.

What service provided by Windows Server 2012 R2 allows a computer to serve up applications to other computers on the network? A. Remote Desktop Services B. Windows 8.1 C. File Transfer Protocol D. Active Directory

A. Remote Desktop Services

Which client-server application allows an administrator to control a remote computer, but does not encrypt or secure the communication between client and server? A. Telnet B. Remote Desktop C. FTP D. SSH

A. Telnet

Apache is a popular example of what type of networking software? A. Web server B. Browser C. Email server D. Email client

A. Web server

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?

Active Directory

. What are the fundamental distinctions between a MAN and WAN?

Answer: 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.

Layer 2 switch operating on a local network while the router routes to an outside network.

Answer: 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

13.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?

Answer: Active Directory

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?

Answer: Application Layer

What is a PDU called at the Link layer?

Answer: Frames

At the Network layer, what type of address is used to identify the receiving host?

Answer: IPV4

Why is it important to wear an ESD strap when installing a server in a rack?

Answer: It's important to wear an ESD strap because it equalizes the electrical potentials between you and the server.

What are the fundamental distinctions between a layer 2 switch and router?

Answer: Layer 2 switch operating on a local network while the router routes to an outside network.

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 network adapter work?

Answer: Physical Layer, Data Link Layer

. 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?

Answer: Session Layer, Application

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?

Answer: Star Bus Topology

A network consists of seven computers and a network printer all connected directly to one switch. Which network topology does the network use?

Answer: Star Topology

What is the primary protocol used at the Network layer?

Answer: TCP/IP

Which type of address is used at the Transport layer to identify the receiving application?

Answer: The transport layer identifies the receiving application through the port number.

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?

Answer: 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.

Is TCP or UDP normally used when streaming live video? Why?

Answer: UDP because live video-streaming appliances are not designed with TCP streaming in mind.

At the Network layer, what is a message called?

Answer: pdu

Which application embedded in Windows operating systems allows remote control of a computer and uses the RDP secure protocol for transmissions? A. Telnet B. Remote Desktop C. FTP D. SSH

B. Remote Desktop

Which two encryption protocols might be used to provide secure transmissions for browser and Web server communications? A. HTTP and HTTPS B. SSL and TLS C. SSL and HTTP D. TCP and UDP

B. SSL and TLS

Which two encryption protocols might be used to provide secure transmissions for browser and Web server communications? A. HTTP and HTTPS HTTPS (HTTP Secure), B. SSL and TLS SSL (Secure Sockets Layer) or TLS (Transport Layer Security) C. SSL and HTTP D. TCP and UDP

B. SSL and TLS SSL (Secure Sockets Layer) or TLS (Transport Layer Security)

In the client-server model, what is the primary protocol used for communication between a browser and Web server? A. FTP B. TCP C. HTTP D. SSL

C. HTTP

In the client-server model, what is the primary protocol used for communication between a browser and Web server? A. FTP B. TCP C. HTTP (Hypertext Transfer Protocol) D. SSL

C. HTTP (Hypertext Transfer Protocol)

10.Which Session layer protocol is a streaming live video teleconference likely to use on the network? A. UDP B. SMTP C. RTP D. TCP

C. RTP

Which Session layer protocol is a streaming live video teleconference likely to use on the network? A. UDP B. SMTP C. RTP D. TCP

C. RTP

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?

Client-server model

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?

Client-server model

List three types of services a network might support that are considered part of unified communications or convergence. A. File transfers, print services, and conversational voice B. User authentication, streaming live audio and video, and print services C. Web services, email services, and file services D. Conversational voice, streaming live audio and voice, and streaming stored audio and voice

D. Conversational voice, streaming live audio and voice, and streaming stored audio and voice

Which email protocol allows an email client to download email messages to the local computer? A. IMAP4 B. SMTP C. TCP D. POP3

D. POP3

A network consists of 10 computers, all running Windows 7 Professional. One computer acts as a file server and serves up data to other computers on the network. Which networking model does the network use?

Peer-to-peer model

Which type of address is used at the Transport layer to identify the receiving application?

Port number

What is a message called that is delivered by TCP? What is a message called that is delivered by UDP? At which layer do the two protocols work?

Segment, Datagram and Transport layer

A network consists of seven computers and a network printer all connected directly to one switch. Which network topology does this network use?

Star topology

suppose a new switch is connected to the first switch by way of a network cable and three computers are connected to the new switch. Which network topology is now used?

Star-bus topology

Is TCP or UDP normally used when streaming live video? Why?

UDP, because guaranteed delivery is not as important as fast transmissions.