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tcip protocol suite

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tcpip

tcpip

Question 1 of 61

1

in the OSI Model, when data is transmitted from device A to device B, the header from A's layer 5 is read by B's ____________ Layer.

Select one of the following:

  • physical

  • transport

  • session

  • presentation

Explanation

Question 2 of 61

1

The _______ Layer is responsible for moving frames from on hop to the next?

Select one of the following:

  • physical

  • data link

  • transport

  • none

Explanation

Question 3 of 61

1

The ____ Layer is responsible for the delivery of message from one process to another

Select one of the following:

  • network

  • physical

  • transport

  • none

Explanation

Question 4 of 61

1

In the OSI model, encryption and decryption are functions of the _____ layer?

Select one of the following:

  • transport

  • session

  • presentation

  • application

Explanation

Question 5 of 61

1

Routers function in the _____ layer?

Select one of the following:

  • data link

  • data link and network

  • physical and data link

  • physical,data link, and network

Explanation

Question 6 of 61

1

switches function in the _____ layers.

Select one of the following:

  • data link

  • data link and network

  • physical and data link

  • physical, data link, and network

Explanation

Question 7 of 61

1

_______ has a higher transmission rate in the downstream direction than in the upstream direction

Select one of the following:

  • ADSL

  • HDSL

  • SDSL

  • VDSL

Explanation

Question 8 of 61

1

in an ESS the _______ stations are part of a wired LAN.

Select one of the following:

  • AAL5

  • AP

  • ATM

  • BSS

Explanation

Question 9 of 61

1

PPP is a _______ layer protocol?

Select one of the following:

  • data link

  • network

  • physical and data link

  • network and data link

Explanation

Question 10 of 61

1

when the internet started it was decided to make the network layer a ______ service to make it simple

Select one of the following:

  • connectionless

  • connection oriented

  • virtual

  • none

Explanation

Question 11 of 61

1

in a ____ service, there is a relation between all packets belonging to a message?

Select one of the following:

  • connectionless

  • connection oriented

  • virtual

  • none

Explanation

Question 12 of 61

1

In a connection-oriented service, each packet is forwarded based on the______.

Select one of the following:

  • destination address

  • label

  • source address

  • none

Explanation

Question 13 of 61

1

_________ control means regulation the amount of data a source can send without overwhelming the destination.

Select one of the following:

  • congestion

  • error

  • flow

  • none

Explanation

Question 14 of 61

1

______ control in a network means handling a situation in which too many packets are present in an area of the internet

Select one of the following:

  • flor

  • error

  • congestion

  • none

Explanation

Question 15 of 61

1

In class C, the netid is between

Select one of the following:

  • 0 to 127

  • 128 to 191

  • 192 to 223

  • none

Explanation

Question 16 of 61

1

In classless addressing, a ____ is assigned to an organization.

Select one of the following:

  • fixed-length

  • fixed number of blocks

  • variable-length block

  • none

Explanation

Question 17 of 61

1

The number of addresses assigned to an organization in classless addressing _____.

Select one of the following:

  • can be any number

  • must be a multiple of 256

  • must be a power of 2

  • none

Explanation

Question 18 of 61

1

Which address could be the beginning address of a block of 32 classless addresses?

Select one of the following:

  • 2.4.6.5

  • 2.4.6.16

  • 2.4.6.64

  • none

Explanation

Question 19 of 61

1

An organization is granted a block: one address is 2.2.2.64/25. If the subnet prefix length is /28 what is the maximum number of subnets?

Select one of the following:

  • 2

  • 4

  • 8

  • 16

  • 32

  • 64

Explanation

Question 20 of 61

1

in a _____ delivery, both the deliverer of the ip packet and the destination are on the same network.

Select one of the following:

  • connection-oriented

  • connnectionless

  • direct

  • indirect

  • virtual

Explanation

Question 21 of 61

1

in ______ delivery, the deliverer of the ip packet and the destination are on different networks.

Select one of the following:

  • connection-oriented

  • connectionless

  • direct

  • indirect

Explanation

Question 22 of 61

1

IN _____ forwarding, the full ip address of a destination is given in the routing table

Select one of the following:

  • defualt

  • host specific

  • next hop

  • network specific

Explanation

Question 23 of 61

1

In _______ forwarding, the mask and destination address are both 0.0.0.0 in the routing table.

Select one of the following:

  • deafualt

  • host specific

  • next-hop

  • network specific

Explanation

Question 24 of 61

1

in ______ forwarding the destination address is a network address in the routing table

Select one of the following:

  • default

  • host specific

  • next hop

  • network specific

Explanation

Question 25 of 61

1

In ______ forwarding, the routing table holds the address of just the next hop instead of complete route info.

Select one of the following:

  • default

  • host specific

  • next hop

  • network specific

Explanation

Question 26 of 61

1

in classsless addressing, we need routing table with atleast ______ columns

Select one of the following:

  • 3

  • 4

  • 6

  • 8

Explanation

Question 27 of 61

1

The principle of _______ states that the routing table is sorted from longest mask to the shortest mask.

Select one of the following:

  • first mask matching

  • last mask matching

  • longest mask matching

  • shortest mask matching

Explanation

Question 28 of 61

1

A ____ routing table contains information entered manually?

Select one of the following:

  • dynamic

  • hierarchical

  • static

  • virtual

Explanation

Question 29 of 61

1

The input and output ports of a router perform the ______ layer functions of the router

Select one of the following:

  • network

  • physical and data link

  • physical and network

  • transport

Explanation

Question 30 of 61

1

The _____ protocol is the transmission mechanism used by the tcp/ip sutie.

Select one of the following:

  • ARP

  • ICMP

  • IP

  • TCP

Explanation

Question 31 of 61

1

IP is ______ datagram protocol

Select one of the following:

  • connectionless

  • unreliable

  • both connectionless and unreliable

  • none

Explanation

Question 32 of 61

1

AN HLEN value of decimal 10 means

Select one of the following:

  • 10 bytes in the header

  • 40 bytes in the header

  • 10 bytes of option

  • 40 bytes of option

Explanation

Question 33 of 61

1

if the fragment offset has a value of 100 it means that

Select one of the following:

  • the datagram has not been fragmented

  • the datagram is 100 bytes in size

  • the first byte of the datagram is byte 800

  • the last byte of the datagram is byte 800

Explanation

Question 34 of 61

1

The ip header size is _______ bytes long.

Select one of the following:

  • 10

  • 20

  • 60

  • 20 to 60

Explanation

Question 35 of 61

1

Packets in the ip layer are called

Select one of the following:

  • datagrams

  • frames

  • packets

  • segments

Explanation

Question 36 of 61

1

When a datagram is encapsulated in a frame, the total size of the datagram must be less than the ____

Select one of the following:

  • MAT

  • MTA

  • MUT

  • MTU

Explanation

Question 37 of 61

1

The ______ module consults the MTU table to determine the packet size necessary for transsmission

Select one of the following:

  • forwarding

  • fragmentation

  • proccessiong

  • sizing

Explanation

Question 38 of 61

1

To find the physical address of the exiting-point router, ATM uses the service of ________

Select one of the following:

  • ARP

  • ATMARP

  • ICMP

  • IP

Explanation

Question 39 of 61

1

A ______ is an ARP that acts of behalf of a set of hosts

Select one of the following:

  • ARP

  • DHCP

  • RARP

  • Proxy ARP

Explanation

Question 40 of 61

1

in _____ mapping , a table associating a logical address with a physical address is updated manually

Select one of the following:

  • dyanmic

  • static

  • logical

  • physical

Explanation

Question 41 of 61

1

A ______ is a local address. Its jurisdiction is over a local network

Select one of the following:

  • logical address

  • physical address

  • port

  • static address

Explanation

Question 42 of 61

1

ICMP is a ______ layer protocol

Select one of the following:

  • application

  • data link

  • network

  • transport

Explanation

Question 43 of 61

1

for the purposes of routing, the internet is divided into

Select one of the following:

  • autonomous networks

  • autonomous systems

  • wide area networks

  • none

Explanation

Question 44 of 61

1

routing between autonomous systems is referred to as _______ routing.

Select one of the following:

  • border

  • interdomain

  • intradomain

  • out of domain

Explanation

Question 45 of 61

1

IN _____ routing, the least cost route between any two nodes is the route with the minumum distance

Select one of the following:

  • distance vector

  • link state

  • path vector

Explanation

Question 46 of 61

1

IN _____, each node maintains a vector minimum distance to everynode

Select one of the following:

  • distance vector

  • link state

  • path vector

Explanation

Question 47 of 61

1

in RIP, the ____ timer controls the advertising of regular update messages.

Select one of the following:

  • expiration

  • garbage collection

  • periodic

Explanation

Question 48 of 61

1

RIP uses the services of

Select one of the following:

  • ARP

  • Ethernet

  • IP

  • UDP

Explanation

Question 49 of 61

1

The _____ routing uses the dijkstra algorithm to build a routing table

Select one of the following:

  • distance vector

  • link state

  • path vector

Explanation

Question 50 of 61

1

in _____ rotuing, we assume that there is one node in each autonomous system that acts on behalf of the the entire system

Select one of the following:

  • distance vector

  • link state

  • path vector

Explanation

Question 51 of 61

1

The ___ protocol allows the admin to assign cost, called the metric to each route

Select one of the following:

  • BGP

  • OSPF

  • RIP

Explanation

Question 52 of 61

1

BGP uses the services of

Select one of the following:

  • ARP

  • IP

  • ethernet

  • UDP

  • TCP

Explanation

Question 53 of 61

1

The main problem that must be solved in providing mobile communication using the ip protocol is

Select one of the following:

  • addressing

  • connecting

  • forwarding

  • none

Explanation

Question 54 of 61

1

The original IP addressing was based on the assumption that a host is ______

Select one of the following:

  • stationary

  • mobile

  • moving

Explanation

Question 55 of 61

1

When a mobile host acts as a foreign agent, the care of address is called a ____ care of address

Select one of the following:

  • co-located

  • commmon

  • shared

Explanation

Question 56 of 61

1

A registration request or reply is sent by ____ using a well known port 434

Select one of the following:

  • IP

  • TCP

  • UDP

Explanation

Question 57 of 61

1

one to many communication between one source and specific group of hosts is classified as a ______ communications

Select one of the following:

  • broadcast

  • multicast

  • unicast

Explanation

Question 58 of 61

1

IN ______, the router forwards the received packet through only one of its interfaces

Select one of the following:

  • broadcast

  • multicast

  • unicast

Explanation

Question 59 of 61

1

emulation of ____ through _____ is not efficient and may create long delays

Select one of the following:

  • broadcasting:multicasting

  • multicasting: multiple unicasting

  • unicasting: multiple unicasting

Explanation

Question 60 of 61

1

in multicast routing, each involved router needs to construct a ___ path tree for each group

Select one of the following:

  • average

  • longest

  • shortest

Explanation

Question 61 of 61

1

In the group-shared tree approach, ________ is/are involved in mulitcasting

Select one of the following:

  • all routers

  • only some routers

  • only the core router

Explanation

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