Deck 5: Network and Transport Layers

Question 1

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

Answer 1

False

Question 2

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

Answer 2

False

Question 3

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 3

False

Question 4

TCP/IP operates only as connection-oriented.

Question 5

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

Question 6

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

Question 7

Connectionless routing sets up a TCP connection, or virtual circuit between a sender and receiver.

Question 8

Quality of Service routing is a special type of routing in which different connections are assigned different priorities.

Question 9

An example of an application layer address is HYPERLINK "http://www.indiana.edu" www.indiana.edu.

Question 10

The network layer provides guaranteed end-to-end delivery of the message.

Question 11

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

Question 12

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 segments.

Question 13

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

Question 14

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

Question 15

Source port address is the logical address used to identify the application that is sending the data.

Question 16

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

Question 17

The standard port number for Telnet is 53.

Question 18

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

Question 19

A destination port number at the transport layer identifies which application on a computer should receive the data transmission.

Question 20

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

Question 21

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

Question 22

An autonomous system is a network operated by one organization.

Question 23

An Address Resolution Protocol message is broadcast to all computers in a subnet to find the data link layer address of a host whose IP address is known but whose MAC address is unknown.

Question 24

The most common protocol for dynamic addressing in TCP/IP networks is the Dynamic Host Configuration Protocol.

Question 25

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.

Question 26

A multicast message can be used to send a message to a maximum of two other computers.

Question 27

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

Question 28

Domain Name Servers provide the resolution of application layer addresses to their corresponding network layer address.

Question 29

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

Question 30

A routing protocol used inside an autonomous system is called an exterior routing protocol.

Question 31

The Enhanced Interior Gateway Routing Protocol is an interior routing protocol originally developed by Cisco.

Question 32

A hop in a routing calculation is defined as one link or circuit.

Question 33

Another term for stop-and-wait ARQ is sliding window.

Question 34

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

Question 35

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

Question 36

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.

Question 37

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

Question 38

Connections on a router, to the Internet and other routers for example, are called applications.

Question 39

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

Question 40

__________ 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 segments
E)interfacing with the network layer

Question 41

Which of the following is not a protocol used at the application layer.

A)HTTP
B)SMTP
C)FTP
D)Telnet
E)UDP

Question 42

_______ is the dominant network protocol today and is in use in virtually every LAN and WAN in the world.

A)SDLC
B)SNA
C)IPX/SPX
D)TCP/IP
E)X.25

Question 43

A TCP three-way handshake is used to establish a ___________ messaging method.

A)asynchronous
B)connection-oriented
C)frequency division
D)application net
E)connectionless

Question 44

The transport layer must break messages from the application layer into several _____ that can be sent to the network layer.

A)bits
B)bytes
C)frames
D)segments
E)strings

Question 45

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

Question 46

Transmission Control Protocol/Internet Protocol was developed for ________ in 1974.

A)ARPANET
B)IBM
C)Hewlett-Packard
D)University of Minnesota
E)Xerox

Question 47

IP:

A)performs segmentation of the data
B)does not have a header
C)is currently in use with only one packet form or structure
D)is utilized during routing functions
E)performs error control functions

Question 48

A typical TCP segment has a _______ header of control information.

A)32-bit
B)64-bit
C)120-byte
D)192-bit
E)32-byte

Question 49

An application layer address using TCP/IPv4 looks like:

A)128.192.78.5
B)www.cba.uga.edu
C)[e-mail]
D)00-0F-00-81-14-00
E)Building 4, Room 2, User 3

Question 50

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

Question 51

The source port identifier of the received TCP segment tells the destination station _____________.

A)which computer sent the TCP packet.
B)which application layer program that the packet should be sent
C)which application layer process the packet is from.
D)the IP address of the source computer.
E)the IP address of the destination computer.

Question 52

The older version of IP has a ________ header of control information.

A)128-bit
B)192-bit
C)1024-bit
D)120-bit
E)320-bit

Question 53

The negotiation by the transport layer at the sender with the transport layer at the receiver to determine what size packets should be set up is done via establishing an) ___________ between the sender and receiver.

A)network layer address resolution
B)one way handshake
C)SNA message
D)TCP connection
E)DNS server request

Question 54

______________ communication is most commonly used when the application data or message can fit into one single packet.

A)Frame-oriented
B)Connection-oriented
C)Connectionless
D)Physical-oriented
E)Byte-oriented

Question 55

UDP is not commonly used for:

A)network management control messages
B)RIP messages
C)DHCP addressing messages
D)HTTP requests
E)DNS requests

Question 56

With QoS routing different __________ are defined, each with different priorities.

A)classes of service
B)domain names
C)application layer addresses
D)data link layer addresses
E)classes of Internet addresses

Question 57

A client computer is typically assigned a data link layer address by a:

A)hardware manufacturer
B)software manufacturer
C)middleware manufacturer
D)network manager who configure a file in a computer's network layer software package
E)ISO

Question 58

The newer form of IP, version 6 IPv6):

A)Is 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

Question 59

Assume that more than one application program is using the same communications line on a particular computer. To be able to decide to which application program a message should be delivered on this computer, TCP/IP relies on the:

A)data link layer address
B)port address
C)application layer address
D)network address
E)IP address

Question 60

With _____________ messaging, each UDP segment makes its own way through the network without the use of sequence numbers or acknowledgements.

A)frequency division
B)connection-oriented
C)PCMCIA
D)connectionless
E)application net

Question 61

_______________ is a type of dynamic routing.

A)Static routing
B)Circuitous routing
C)Centralized routing
D)Link state
E)X.25 routing

Question 62

___________ 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

Question 63

___________ 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

Question 64

When TCP/IP translates an application layer address into an IP address, it sends a special __________ to the nearest DNS server.

A)broadcast message
B)DNS request packet
C)SNA packet
D)IPX message
E)X.25 packet

Question 65

____________ 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

Question 66

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

Question 67

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

Question 68

When TCP/IP translates a network layer address into a data link layer address, it sends a special ____________ to all computers in the subnet.

A)physical layer packet
B)multicast message
C)X.25 message
D)broadcast message
E)application layer packet

Question 69

With ________ routing, computers or routers count the number of hops along a route and periodically exchange information on the hop count with their neighbors.

A)circuitous
B)decentralized
C)distance vector
D)indirect
E)link state

Question 70

ICANN:

A)developed the IPX/SPX network layer protocol
B)assigns data link layer addresses
C)approves which network layer addresses usually, approved or assigned in groups or classes) can be used by an organization for its computers that will connect to the Internet
D)developed X.25 network layer protocol
E)refers to Interchange Computer Addressing Networks and Nodes

Question 71

IPv4 uses ________ bytes per Internet address.

A)4
B)32
C)8
D)24
E)16

Question 72

In its simplest form, the __________ has two columns: the first column lists every destination network, while the second column lists the interface on which that computer should send messages, if they are destined for the network in the first column.

A)linking loader
B)routing table
C)configuration listing
D)bus header assignment list
E)file allocation table

Question 73

An) ________ 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

Question 74

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

Question 75

An) _________ is a specially formatted request used to perform IP address to data link address resolution.

A)Address Resolution Protocol request
B)Domain Service Request
C)HTTP request
D)Link state request
E)Autonomous System Request

Question 76

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

Question 77

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.

Question 78

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

Question 79

IPv6 is based upon _________ -byte addresses.

A)32
B)24
C)4
D)16
E)8

Question 80

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