Question:

In IPv6 addresses, addresses that start with eight 0s are called ________

A.

unicast addresses

B.

multicast addresses

C.

any cast addresses

D.

reserved addresses

Answer» d. reserved addresses

Question:

The time taken by a packet to travel from client to server and then back to the client is called ____

A.

stt

B.

rtt

C.

ptt

D.

none of the mentioned

Answer» b. rtt

Question:

The maximum size of payload field in ethernet frame is

A.

1000 bytes

B.

1200 bytes

C.

1300 bytes

D.

1500 bytes

Answer» d. 1500 bytes

Question:

The DHCP server

A.

maintains a database of available ip addresses

B.

maintains the information about client configuration parameters

C.

grants a ip address when receives a request from a client

D.

all of the mentioned

Answer» d. all of the mentioned

Question:

Which of these is not a type of error-reporting message?

A.

destination unreachable

B.

source quench

C.

router error

D.

time exceeded

Answer» c. router error

Question:

Which are the features present in IPv4 but not in IPv6?

A.

fragmentation

B.

header checksum

C.

options

D.

anycast address

Answer» d. anycast address

Question:

What is the subnet id of a host with an IP address 172.16.66.0/21?

A.

172.16.36.0

B.

172.16.48.0

C.

172.16.64.0

D.

172.16.0.0

Answer» c. 172.16.64.0

Question:

Among the optical-distribution architectures that is essentially switched ehternet is

A.

aon

B.

pon

C.

non

D.

none of the mentioned

Answer» a. aon

Question:

Which protocol gives a full route table update every 30 seconds?

A.

iegrp

B.

rip

C.

icmp

D.

ip

Answer» b. rip

Question:

Which one of the following algorithm is not used in asymmetric key cryptography?

A.

rsa algorithm

B.

diffie-hellman algorithm

C.

electronic code book algorithm

D.

none of the mentioned

Answer» c. electronic code book algorithm