Deck 14: The Internet Protocol

Question 1

________ is the foundation on which all of the internet based protocols and internetworking is based.

A)Datagram
B)IP
C)TCP
D)VPN

Answer 1

B

Question 2

A static table is more flexible than a dynamic table in responding to both error and congestion conditions.

Answer 2

False

Question 3

Priority could be assigned on a message basis or on a connection basis.

Answer 3

True

Question 4

A next generation IP,known as ________,provides longer address fields and more functionality than the current IP.

A)IPv6
B)IPv5
C)IPv3
D)IPv4

Question 5

The driving motivation for the adoption of a new version of IP was the limitation imposed by the 32-bit address field in IPv4.

Question 6

If dynamic or alternate routing is used the potential exists for a datagram to loop indefinitely through the internet.

Question 7

In 1994 the Internet Architecture Board issued a report titled "Security in the Internet Architecture" that stated that the general consensus was that the Internet was secure and there were no areas of security concern.

Question 8

Time to Live is similar to a hop count.

Question 9

A connectionless internet service is not good for connectionless transport protocols because it imposes unnecessary overhead.

Question 10

Data are transmitted over an internet in packets from a source system to a destination across a path involving a single network and routers.

Question 11

IP does not guarantee that all data will be delivered or that the data that are delivered will arrive in the proper order.

Question 12

In IPv6 fragmentation may only be performed by routers along a packet's delivery path.

Question 13

Flow control allows routers and receiving stations to limit the rate at which they receive data.

Question 14

The process in which a protocol may need to divide a block received from a higher layer into multiple blocks of some smaller bounded size is called ________.

A)reassembly
B)subnetting
C)fragmentation
D)downsizing

Question 15

The format of the Destination Options Header is the same as that of the Hop-by-Hop Options Header.

Question 16

A Class C network is defined as few networks,each with many hosts.

Question 17

IP attaches a header to upper layer data to form an IP ________.

A)layer
B)packet
C)subnet
D)datagram

Question 18

The counterpart of fragmentation is reassembly.

Question 19

A protocol is concerned with exchanging data between two entities.

Question 20

For virtually all protocols data are transferred in blocks called ________.

A)PDUs
B)segments
C)NSAPs
D)datagrams

Question 21

A ________ operates at layer 3 of the OSI architecture and routes packets between potentially different networks..

Question 22

The most widely used protocol for internetworking is the ________.

Question 23

Although it is intended to ultimately be replaced,________ is currently the standard IP used in TCP/IP networks.

Question 24

An IS used to connect two LANs that use similar LAN protocols and acts as an address filter,picking up packets from one LAN that are intended for a destination on another LAN and passing those packets on,is a ________.

A)router
B)bridge
C)broadcast
D)end system

Question 25

The effect of the ________ is to erase the portion of the host field that refers to an actual host on a subnet,leaving the network number and the subnet number.

A)echo reply
B)checksum
C)subnet mask
D)address mask

Question 26

Which of the following is NOT an enhancement of IPv6 over IPv4?

A)improved error recovery
B)address autoconfiguration
C)support for resource allocation
D)expanded address space

Question 27

A function performed by a receiving entity to limit the amount or rate of data that is sent by a transmitting entity is ________.

A)flow control
B)error control
C)transmission control
D)data control

Question 28

Starting with a 32-bit block consisting of four 8-bit fields,the ________ contains a list of one or more intermediate nodes to be visited on the way to a packet's destination.

Question 29

In the IPv4 Header ________ specifies how long,in seconds,a datagram is allowed to remain in the internet.

Question 30

An internet consists of multiple separate networks that are interconnected by ________.

Question 31

The ________ is a means of uniquely identifying an end-system-originated datagram.

A)protocol layer number
B)source address
C)Data Unit Identifier
D)protocol identifier

Question 32

IPv6 allows three types of addresses: unicast,anycast,and ________.

Question 33

The ________ primitive is used to request transmission of a data unit.

A)Send
B)Source Routing
C)Transmit
D)Request

Question 34

A device used to provide a communications path and perform the necessary relaying and routing functions so that data can be exchanged between devices attached to different networks in the internet is an ________.

Question 35

An entity may transmit data to another entity in such a way that each PDU is treated independently of all prior PDUs.This is known as ________ data transfer.

Question 36

A device attached to one of the networks of an internet that is used to support end user applications or services is ________.

A)an end system
B)a router
C)a subnet
D)an intermediate system

Question 37

The principal feature of ________ is that it can encrypt and/or authenticate all traffic at the IP level.

A)TCP/UDP
B)IAB
C)VPN
D)IPSec

Question 38

A hop-by-hop option that is used to send IPv6 packets with payloads longer than 65,535 octets is ________.

A)PAD1
B)fragmentation
C)jumbo payload
D)PADN

Question 39

A ________ consists of a set of computers that interconnect by means of a relatively unsecure network and makes use of encryption and special protocols to provide security.

Question 40

In IPv6 ________ may only be performed by source nodes,not by routers,along a packet's delivery path.

A)bridging
B)reassembly
C)fragmentation
D)ordered delivery

Question 41

The IP standard specifies that a compliant implementation must also implement ________,which provides a means for transferring messages from routers and other hosts to a host.Because these messages are transmitted in IP datagrams, their delivery is not guaranteed and their use cannot be considered reliable.

Question 42

IP addresses are usually written in ________ notation,with a decimal number representing each of the octets of the 32-bit address.

Question 43

The services to be provided across adjacent protocol layers are expressed in terms of ________ and parameters.

Question 44

IPv6 addresses are ________ bits in length.

Question 45

The source and destination address fields in the IP header each contain a 32-bit global internet address,generally consisting of a network identifier and a _______.