Deck 6: Network Layer and IP Addressing

Question 1

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

A)physical
B)logical
C)a and b
D)none of the above

Answer 1

physical

Question 2

If the sender is a host and wants to send a packet to another host on the same network, the logical address that must be mapped to a physical address is ______.

A)the destination IP address in the datagram header
B)the IP address of the router found in the routing table
C)either a or b
D)none of the above

Answer 2

the destination IP address in the datagram header

Question 3

If the sender is a host and wants to send a packet to another host on another network, the logical address that must be mapped to a physical address is ______.

A)the destination IP address in the datagram header
B)the IP address of the router found in the routing table
C)either a or b
D)none of the above

Answer 3

the IP address of the router found in the routing table

Question 4

The sender is a router that has received a datagram destined for a host on another network. The logical address that must be mapped to a physical address is ______.

A)the destination IP address in the datagram header
B)the IP address of the router found in the routing table
C)either a or b
D)none of the above

Question 5

The sender is a router that has received a datagram destined for a host on the same network. The logical address that must be mapped to a physical address is ______.

A)the destination IP address in the datagram header
B)the IP address of the router found in the routing table
C)either a or b
D)none of the above

Question 6

Which one of the following is not a function of network layer?

A)routing
B)inter-networking
C)congestion control
D)none of the above

Question 7

The 4 byte IP address consists of

A)network id
B)host id
C)both (a) and (b)
D)none of the above

Question 8

In virtual circuit network each packet contains

A)full source and destination address
B)a short VC number
C)both (a) and (b)
D)none of the above

Question 9

Which one of the following routing algorithm can be used for network layer design?

A)shortest path algorithm
B)distance vector routing
C)link state routing
D)all of the above

Question 10

Multi-destination routing

A)is same as broadcast routing
B)contains the list of all destinations
C)data is not sent by packets
D)none of the above

Question 11

A subset of a network that includes all the routers but contains no loops is called

A)spanning tree
B)spider structure
C)spider tree
D)none

Question 12

Which one of the following algorithm is not used for congestion control?

A)traffic aware routing
B)admission control
C)load shedding
D)none

Question 13

The network layer protocol of internet is

A)Ethernet
B)internet protocol
C)hypertext transfer protocol
D)none of the above

Question 14

ICMP is primarily used for

A)error and diagnostic functions
B)addressing
C)forwarding
D)none of the above

Question 15

The PDU of network layer is

A)bits
B)frames
C)packets
D)none

Question 16

Which of the following is a wrong example of network layer?

A)Internet Protocol (IP) - ARPANET
B)X.25 Packet Level Protocol (PLP)-ISO
C)Source routing and domain naming-USENet
D)X.25 level 2-ISO

Question 17

For data communications to occur, the communicating devices must be part of a communication system made up of a combination of?

A)WAN and LAN
B)Hardware and software
C)Full duplex and half duplex
D)All of the above

Question 18

Time required for a message to travel from one device to another is known as:

A)Transit time
B)Dialogue time
C)Response time
D)Wait time

Question 19

Which network is a cross between circuits switched network and a data-gram network?

A)Circuit-switched network
B)Virtual-circuit network
C)Virtual-circuit identifier
D)None of these

Question 20

Switching at the network layer in the Internet uses the datagram approach to:

A)Message switching
B)Circuit switching
C)IP switching
D)Packet switching

Question 21

Which is also known as a connectionless protocol for a packet-switching network that uses the Datagram approach?

A)IPV5
B)IPV4
C)IPV6
D)None of these

Question 22

Which switch is a multistage switch with micro switches at each stage that route the packets based on the output port represented as a binary string?

A)Banyan switch
B)Crossbar switch
C)Multistage crossbar
D)Packet switch

Question 23

In Address Resolution Protocol (ARP), a packet is encapsulated directly into a

A)Data link Integer
B)data link IP
C)Data link Station
D)Data link Frame

Question 24

Subnetting is actually

A)collection of networks
B)sub division of networks
C)one sub network
D)None

Question 25

Packets in IPv4 layer are called

A)datagrams
B)header length
C)code point
D)tunneling