Top 1000+ Solved Computer Networks MCQ Questions Answer
Q. The Internet Control Message Protocol (ICMP)
a. allows gateways to send error a control messages to other gateways or hosts
b. provides communication between the Internet Protocol Software on one machine and the Internet Protocol Software on another
c. reports error conditions to the original source, the source must relate errors to individual application programs and take action to correct the problem
d. All of the above
Q. Your company has a LAN in its downtown office and has now set up a LAN in the manufacturing plant in the suburbs. To enable everyone to share data and resources between the two LANs, what type of device(s) are needed to connect them? Choose the most correct answer.
a. Modem
b. Cable
c. Hub
d. Router
Q. Which of the following TCP/IP protocol is used for transferring electronicmail messages from one machine to another?
a. FTP
b. SNMP
c. SMTP
d. RPC
Q. Which of the following device is used to connect two systems, especially ifthe systems use different protocols?
a. hub
b. bridge
c. gateway
d. repeater
Q. _______ can detect burst error of length less than or equal to degree of thepolynomial and detects burst errors that affect odd number of bits.
a. Hamming Code
b. CRC
c. VRC
d. None of the above
Q. The PSTN is an example of a ………………… network.
a. packet switched
b. circuit switched
c. message switched
d. None of these
Q. A subset of a network that includes all the routers but contains no loops iscalled:
a. spanning tree
b. spider structure
c. spider tree
d. none of the mentioned
Q. An endpoint of an inter-process communication flow across a computer network is called:
a. socket
b. pipe
c. port
d. none of the mentioned
Q. In an Ethernet local area network, which one of the following statements is TRUE?
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 smaller than 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
Q. A small network making up the Internet and also having a small numbers of computers within it is called
a. Host
b. Address
c. Subdomain
d. None of the above
Q. If a file consisting of 50,000 characters takes 40 seconds to send, then thedata rate is __________.
a. 1 kbps
b. 1.25 kbps
c. 2 kbps
d. 10 kbps
Q. In CRC there is no error if the remainder at the receiver is _____.
a. equal to the remainder at the sender
b. zero
c. nonzero
d. the quotient at the sender
Q. A modulator converts a _____ signal to a(n) _____ signal.
a. FSK; PSK
b. PSK; FSK
c. analog; digital
d. digital; analog
Q. ASK, PSK, FSK, and QAM are examples of _____ encoding.
a. digital-to-digital
b. digital-to-analog
c. analog-to-analog
d. analog-to-digital
Q. With an IP address of 201.142.23.12, what is your default subnet mask?
a. 0.0.0.0
b. 255.0.0.0
c. 255.255.0.0
d. 255.255.255.0