Deck 5: Network and Transport Layers

Question 1

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

Answer 1

True

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

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 3

True

Question 4

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

Question 5

TCP/IP operates only as connection-oriented.

Question 6

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

Question 7

Source port address is the logical address generated by the application layer on the source computer to identify the application, which is sending the data.

Question 8

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

Question 9

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

Question 10

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

Question 11

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

Question 12

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

Question 13

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

Question 14

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.

Question 15

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

Question 16

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.

Question 17

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

Question 18

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

Question 19

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

Question 20

The standard port number for Telnet is 53.

Question 21

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

Question 22

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

Question 23

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

Question 24

_______ is the dominant network protocol today.

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

Question 25

__________ 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

Question 26

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

Question 27

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

Question 28

Enhanced Interior Gateway Routing Protocol is a dynamic link state interior routing protocol developed by Cisco.

Question 29

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

Question 30

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

Question 31

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 32

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

Question 33

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

Question 34

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

Question 35

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

Question 36

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

Question 37

An Address Resolution Protocol message is broadcast to all computers in a subnet to find the data link layer address.

Question 38

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 39

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 40

An autonomous system is a network operated by one organization.

Question 41

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 42

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 43

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 44

The source destination port identifier 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 45

A TCP connection is established in the ___________ routing method.

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

Question 46

_____________ 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

Question 47

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

Question 48

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

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

Question 49

______________ routing 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 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

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

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

Question 52

UDP is not commonly used for:

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

Question 53

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

Question 54

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

Question 55

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

A)32-bit
B)64-bit
C)160-bit
D)192-bit
E)32-byte

Question 56

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 57

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 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

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

A)128-bit
B)192-bit
C)1024-bit
D)160-bit
E)320-bit

Question 60

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 61

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

Question 62

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 63

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 64

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 65

___________ 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 66

___________ 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 67

IPv6 is based upon _________ -byte addresses.

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

Question 68

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 69

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

Question 70

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

Question 71

IPv4 uses ________ bytes per Internet address.

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

Question 72

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 73

_______________ is a type of dynamic routing.

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

Question 74

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 75

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 76

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 77

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

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

Question 78

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 79

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 80

____________ 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