634ch5final

*An application layer address using TCP/Ipv4 looks like: a. 128.192.78.5 b. www.cba.uga.edu c. [email protected] d. 00-0F-00-81-14-00 e. Building 4, Room 2, User 3

Answer: B

The source port identifier in the TCP header tells the TCP software on the destination computer, which application on the destination it should pass the packet to.

Answer: False

The transport layer routes messages thought the network selecting the best path from the source to the destination station.

Answer: False

There are four fundamental approaches to routing: centralized, static routing, dynamic routing, and monitor routing.

Answer: False

The most common standard for dynamic addressing for TCP/IP networks is Dynamic Host Control Protocol.

Answer: True

TCP includes a sequence number so that the packets can be reassembled at the destination in the correct order.

Answer: True

The TCP portion of TCP/IP performs linking to the application layer.

Answer: True

The data link layer address is generally encoded in a network card by the card's manufacturer.

Answer: True

The transport layer process running on the destination computer, reassembles the fragmented application message before passing it up to the application layer

Answer: True

To help determine to which application a transmission should be delivered on a particular computer, TCP uses the application layer port addresses to distinguish among many open applications on a computer

Answer: True

Translating an application layer address to a network layer address and finally to a data link layer address is called address resolution.

Answer: True

The ____________ layer links the application layer with the network layer is responsible for end-to-end delivery of messages. a. physical b. transport c. session d. presentation e. data link

Answer: B

The ping command uses the most basic interior routing protocol on the Internet, which is the: a. Border Gateway Protocol b. Internet Control Message Protocol c. Routing Information Protocol d. Enhanced Interior Gateway Routing Protocol e. Open Shortest Path First

Answer: B

*A special packet called a(n) _____________ packet is sent to the receiver requesting the establishment of a connection a. ACK b. NAK c. SYN d. ARQ e. FIN

Answer: C

*___________ is the translation of application layer addresses into IP addresses. a. Network interface card reversal b. IPv6 c. Server name resolution d. Subnet masking e. Name service coding

Answer: C

*___________ is the process of determining the path that a message will travel from sending computer to receiving computer. a. Routing b. Addressing c. Interfacing d. Broadcasting e. Packetizing

Answer: A

A client computer is assigned a data link layer address is by: a. hardware manufacturers b. software manufacturers c. middleware manufacturers d. network managers who configure a file in a computer's network layer software package e. ISO

Answer: A

IPv4 uses ________ bytes per Internet address. a. 4 b. 32 c. 8 d. 24 e. 16

Answer: A

In connection-oriented routing, the _________ layer sets up a virtual circuit between the sender and the receiver. a. transport b. network c. physical d. data link e. connection

Answer: A

The _____________ is used by a computer to determine how messages will travel through the network. a. routing table b. configuration listing c. linking loader d. bus header assignment list e. file allocation table

Answer: A

Transmission Control Protocol/Internet Protocol was developed for ________ in 1974. a. ARPANET b. IBM c. Hewlett-Packard d. University of Minnesota e. Xerox

Answer: A

Which of the following is not given to a client computer when it is first installed on a TCP/IP network so that it has the appropriate routing/addressing information? a. application layer address b. subnet mask c. its own IP address d. IP address of its DNS server e. IP address of a gateway, router, or a switch outside of its subnet

Answer: A

*A virtual circuit is established in the ___________ routing method. a. asynchronous b. connection-oriented c. frequency division d. application net e. connectionless

Answer: B

*A(n) ________ refers to a group of computers that are logically grouped together by IP number. a. IPv6 group b. subnet c. data link group d. TCP group e. application net

Answer: B

In its simplest form, the __________ has two columns: the first column lists every computer and device in the network, while the second column lists the computer or device to which that computer should send messages, if they are destined for the computer in the first column. a. linking loader b. routing table c. configuration listing d. bus header assignment list e. file allocation table

Answer: B

TCP uses _____________ so that the destination station can reassemble the packets into the correct order. a. IP addresses b. sequence numbers c. port numbers d. packet numbers e. reassembly value

Answer: B

TCP/IP: a. is the least commonly used network protocol for LANs because it cannot be combined with Ethernet b. performs packetizing, as well as routing and addressing functions c. is not very efficient and is prone to errors d. is compatible with only one type of data link protocol, SDLC e. refers to Telephone Control Procedures/Inter-exchange Procedures

Answer: B

An advantage of centralized routing is: a. routing does reflect changing network conditions, such as computers that are overloaded by many messages b. if anything happens to the computer developing the routing table, the routing tables cannot be changed until that computer is fixed, or until a new computer is selected to perform the function c. routing decisions are simple d. the routing tables are stored at all computers in the network e. it requires more processing by each computer or router in the network than dynamic routing

Answer: C

One drawback to dynamic routing is: a. Routing usually does not reflect changing network conditions, such as computers that are overloaded by many messages b. It cannot be used with non-government networks c. The transmission of status information "wastes" network capacity that could be used to send user messages d. It is the job of the network manager, not the computers or devices themselves, to maintain the routing table. e. It requires less processing by each computer than static routing.

Answer: C

The newer form of IP, version 6 (Ipv6) is: a. running out of address space to support the growth of the Internet b. has a 20 byte header c. has an increased address size from 32 bits to 128 bits d. does not include version number in its header e. does not include hop limit in its header

Answer: C

__________ is not an important function of the transport layer. a. end-to-end delivery of the message b. taking messages from the application layer c. routing d. breaking long messages into smaller packets e. interfacing with the network layer

Answer: C

____________ refers to the type of routing in which the routing table is developed by the network manager and modifications are made only when computers are added to or removed from the network. a. Adaptive routing b. Dynamic routing c. Static routing d. Distance vector routing e. Link state routing

Answer: C

*The transport layer must break messages from the application layer into several _____ that can be sent to the data link layer. a. bits b. bytes c. frames d. packets e. strings

Answer: D

*_____________ routing is a method of routing in which each packet makes its own way through the network. a. Frequency division b. Connection-oriented c. PCMCIA d. Connectionless e. Application net

Answer: D

A subnet mask of ___________ means that all computers with only the same first two bytes in their IPv4 addresses are on the same subnet. a. 11111111.0.0.0 b. 255.255.255.0 c. 255.0.0.0 d. 255.255.0.0 e. 255.255.255.255

Answer: D

IP: a. performs packetizing functions b. does not have a header c. is currently in use with only one packet form or structure d. performs routing functions e. performs error control functions

Answer: D

IPv6 will be based upon _________ -byte addresses. a. 32 b. 24 c. 4 d. 16 e. 8

Answer: D

_______ is the dominant network protocol today. a. SDLC b. SNA c. IPX/SPX d. TCP/IP e. X.25

Answer: D

*Server name resolution is done using the: a. Address Resolution Protocol b. Border Gateway Protocol c. Internet Control Message Protocol d. Routing Information Protocol e. Domain Name Service

Answer: E

*The three fundamental approaches to routing are: a. circuitous, flat, and direct routing b. connectionless, static, and connection-oriented c. subordinate, master, and insubordinate routing d. host, client, and client-server routing e. centralized, static routing, and dynamic routing

Answer: E

Dynamic addressing: a. assigns a permanent network layer address to a client computer in a network b. makes network management more complicated in dial-up networks c. has only one standard, bootp d. is always performed for servers only e. can solve many updating headaches for network managers who have large, growing, changing networks

Answer: E

IP is responsible for error-free delivery of packets on a TCP/IP network.

Answer: False

IPv4 addresses offer unlimited opportunity for expansion and growth on the Internet.

Answer: False

TCP is the network layer protocol used on the Internet today.

Answer: False

TCP/IP is a data link protocol that is used on the Internet.

Answer: False

The latest version of IP is IPv7, which increases the address space from 128 bits to 256 bits.

Answer: False

The network layer address for IP is ten bytes long when using IPv4.

Answer: False

The network layer is responsible for end-to-end delivery of the message.

Answer: False

The network layer sits directly between the application layer and the data link layer in the Internet five-layer network model.

Answer: False

When using dynamic routing, routing decisions are always made by a central host or server.

Answer: False

An example of an application layer address is www.indiana.edu

Answer: True

Because there is a limit on the length of a frame that the data link layer can transmit from node to node, the transport layer breaks up the message from the application layer into several smaller packets.

Answer: True

Domain Name Servers provide the equivalent of directory assistance for application layer addresses.

Answer: True

Part of the function of address resolution is translating the application layer address of the destination into a network layer address.

Answer: True

Routing is the process of determining the path or route through the network that a particular message will follow from the sender to the recipient.

Answer: True

Several different protocols exist that specify how network and/or transport layer packets are organized.

Answer: True

Subnet masks tell computers what part of an IP address is to be used to determine whether a destination is in the same subnet or in a different subnet.

Answer: True