Question:

What is data encryption standard (DES)?

A.

block cipher

B.

stream cipher

C.

bit cipher

D.

none of the mentioned

Answer» a. block cipher

Question:

RTP can use

A.

unprevileleged udp ports

B.

stream control transmission protocol

C.

datagram congestion control protocol

D.

all of the mentioned

Answer» d. all of the mentioned

Question:

The sharing of a medium and its link by two or more devices is called _______

A.

fully duplexing

B.

multiplexing

C.

both a and b

D.

none of the mentioned

Answer» b. multiplexing

Question:

In HTTP pipelining

A.

multiple http requests are sent on a single tcp connection without waiting for the corresponding responses

B.

multiple http requests can not be sent on a single tcp connection

C.

multiple http requests are sent in a queue on a single tcp connection

D.

none of the mentioned

Answer» a. multiple http requests are sent on a single tcp connection without waiting for the corresponding responses

Question:

Which protocol defines a profile of RTP that provides cryptographic services for the transfer of payload data?

A.

srtp

B.

rtcp

C.

rcp

D.

none of the mentioned

Answer» a. srtp

Question:

Internet access by transmitting digital data over the wires of a local telephone network is provided by

A.

leased line

B.

digital subscriber line

C.

digital signal line

D.

none of the mentioned

Answer» b. digital subscriber line

Question:

Ethernet frame consists of

A.

mac address

B.

ip address

C.

both (a) and (b)

D.

none of the mentioned

Answer» a. mac address

Question:

If link transmits 4000frames per second, and each slot has 8 bits,the transmission rate of circuit this TDM is

A.

32kbps

B.

500bps

C.

500kbps

D.

none of the mentioned

Answer» a. 32kbps

Question:

The DoS attack is which the attacker sends deluge of packets to the targeted host

A.

vulnerability attack

B.

bandwidth flooding

C.

connection flooding

D.

all of the mentioned

Answer» b. bandwidth flooding

Question:

The attackers a network of compromised devices known as

A.

internet

B.

botnet

C.

telnet

D.

d-net

Answer» b. botnet