Top 1000+ Solved Computer Networks MCQ Questions Answer
Q. ICMP is primarily used for:
a. error and diagnostic functions
b. addressing
c. forwarding
d. none of the mentioned
Q. User datagram protocol is called connectionless because:
a. all UDP packets are treated independently by transport layer
b. it sends data as a stream of related packets
c. both (a) and (b)
d. none of the mentioned
Q. An endpoint of an inter-process communication flow across a computernetwork is called:
a. socket
b. pipe
c. port
d. none of the mentioned
Q. A is a TCP name for a transport service access point.
a. port
b. pipe
c. node
d. none of the mentioned
Q. Which one of the following is a transport layer protocol?
a. stream control transmission protocol
b. internet control message protocol
c. neighbour discovery protocol
d. dynamic host configuration protocol
Q. Physical layer provides:
a. mechanical specifications of electrical connectors and cables
b. electrical specification of transmission line signal level
c. specification for IR over optical fiber
d. all of the mentioned
Q. The translates internet domain and host names to IP address.
a. domain name system
b. routing information protocol
c. network time protocol
d. internet relay chat
Q. When displaying a web page, the application layer uses the:
a. HTTP protocol
b. FTP protocol
c. SMTP protocol
d. none of the mentioned
Q. This is a time-sensitive service:
a. File transfer
b. File download
c. E-mail
d. Internet telephony
Q. Packet sniffers involve:
a. Active receiver
b. Passive receiver
c. Both of the mentioned
d. None of the mentioned
Q. Identify the incorrect statement:
a. FTP stands for File Transfer Protocol
b. FTP uses two parallel TCP connections
c. FTP sends its control information in-band
d. FTP sends exactly one file over the data connection
Q. Find the FTP reply whose message is wrongly matched:
a. 331 – Username OK, password required
b. 425 – Can’t open data connection
c. 452 – Error writing file
d. 452 – Can’t open data connection
Q. In an Ethernet local area network, which one of the following statementsisTRUE?
a. A station stops to sense the channel once it starts transmitting a frame.
b. The purpose of the jamming signal is to pad the frames that are smallerthan the minimum frame size.
c. A station continues to transmit the packet even after the collision is detected.
d. The exponential back off mechanism reduces the probability of collision on retransmissions