200+ [updated] computer networking mc qs and answers 2020

12/4/2020 200+ [UPDATED] Computer Networking MCQs and Answers 2020
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Computer Networking MCQs and Answers
200+ [UPDATED] Computer
Networking MCQs and Answers
Computer Networking multiple choice questions and answers PDF
for freshers and experienced
Computer Networking Objective Questions and Answers
1. What is the other types of OLAP apart from ROLAP?
A. HOLAP
B. MOLAP
C. DOLAP
D. Both a and b above
2. A network router joins two _________ together?
A. Computers
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B. Switches
C. Networks
D. Gateway
3. Message Oriented Middleware allows general purpose
messages to be exchanged in a Client/Server system using
message queues.
A. True
B. False
4. Which of the following below is a loop back IP address?
A. 127.0.0.0
B. 127.0.1.1
C. 127.0.1.0
D. 127.0.0.1
5. Ping command works on which protocol?
A. ICMP
B. TCP
C. IP
D. UDP
6. Transport layer of OSI model lies between Network and
___________ layer
A. Application
B. Data link
C. Session
D. Presentation
7. Which of the following protocols below work in
application layer?
A. POP
B. PPP
C. FTP
D. Both a and d above
8. What is the port number for HTTP?
A. 25
B. 80

C. 21
D. 65
9. IP4 is more commonly used than IPv6?
A. True
B. False
10. From the options below, which suits best for MODEM?
A. a device that modulates an analog carrier signal to encode digital
information
B. a device that modulates a digital carrier signal to encode analog
information
C. a device that modulates an analog carrier signal to decode digital
information
D. a device that modulates a digital carrier signal to decode analog
information
11. What is the size of an IP address?
A. 64 bit
B. 128 bit
C. 16 bit
D. 32 bit
12. MAC addresses are also known as?
A. Hardware address
B. Physical address
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C. both A and B above
D. IP address
Ans: C
13. A network point that provides entrance into another
network is called as ___________
A. Node
B. Gateway
C. Switch
D. Router
Ans: B
14. UDP is an unreliabe protocol.
A. True
B. False
Ans: A
15. A stream socket provides _________ communications
between a client and server
A. One way
B. Two way
Ans: B
16. Token Ring is a data link technology for ?
A. WAN
B. MAN
C. LAN
D. both a and b above
Ans: C
17. Which of the following protocol below are suited for
email retrieval?
A. POP3
B. IMAP
C. FTP
D. Both a and b above
Ans: D

18. TELNET used _________ protocol for data connection
A. TCP
B. UDP
C. IP
D. DHCP
Ans: A
19. 10Base5, 10Base2, 10BaseT are types of?
A. Internet
B. LAN
C. Ethernet
D. Cables
Ans: C
20. The process of assigning IP address for specific times
to the various hosts by DHCP is called as?
A. Lend
B. sublease
C. let
D. Lease
Ans: D
21. What is the full form of URL?
A. Uniform routing locator
B. Uniform Resource locator
C. Universal Resource locator
D. Uniform router locator
Ans: B
22. __________ is a standard suite of protocols used for
packet switching across computer networks.
A. x.22
B. x.23
C. x.25
D. x.26
Ans: C
23. What is the full form of CAN?
A. Campus Area Network

B. Cluster Area Network
C. Control Area network
D. both A and B
Ans: D
24. Which of the following below is/are capability of ICMP
protocol?
A. Report package count
B. Report network congestion
C. Both b and d
D. Report availability of remote hosts
Ans: C
25. ARP works on Ethernet networks.
A. False
B. True
Ans: B
26. _______ assigns a unique number to each IP network
adapter called the MAC address.
A. Media Access Control
B. Metro Access Control
C. Metropolitan Access Control
D. Both B and C above
Ans: A
27. Piconets in blue tooth a minimum of two and a
maximum of ____________ Bluetooth peer devices.
A. five
B. eight
C. nine
D. four
Ans: B
28. Dynamic addressing doesn’t allow many devices to
share limited address space on a network
A. True
B. False
Ans: B

29. NAT stands for _____ .
A. network address transformer
B. network address translator
C. network address translation
D. Both B and C above
Ans: C
30. Which of the following is true for secure shell
tunneling?
A. To set up an SSH tunnel, one configures an SSH client to forward a
specified local port
B. SSH tunnels provide a means to not bypass firewalls
C. All SSH clients support dynamic port forwarding
D. Both A and B
Ans: A
31. Which of the following below are secure VPN
protocols?
A. UDP
B. TCP
C. SSTP
D. Both B and C
Ans: D
32. What is the difference between a switch and a hub?
A. Switches operate at physical layer while hubs operate at data link
layer
B. Switches operate at data link layer while hubs operate at transport
layer
C. Switches operate at data link layer while hubs operate at physical
layer
D. Switches operate at transport layer while hubs operate at physical
layer
Ans: C
33. When computers in a network listen and receive the
signal, it is termed as active toplogy
A. True

B. False
Ans: A
34. In 10base2, 10base5, what does 2 and 5 stand for?
A. Speed in mbps
B. Number of segments
C. Length of segment
D. Size of segment
Ans: B
35. ______is added to data packet for error detection.
A. checksum bit
B. error bit
C. parity bit
Ans: C
36. ALL IP addresses are divided into network address and
host address
A. True
B. False
Ans: A
37. How can we examine the current routing tables in
command prompt?
A. using routestart
B. using netstart
C. using netstat
D. either a or b
Ans: C
38. Both ping and tracert are used to find If the computer
is in network.
A. True
B. False
Ans: B
39. What is the difference between ring and bus topology?
A. In Ring all nodes are connected with another in a loop while in bus
they are connected to a central cable

B. In Ring all nodes are connected with another loop while in bus
they are connected to a central cable
C. In bus all nodes are connected with another in a loop while in star
they are connected to a central node
D. In Bus all nodes are connected with another loop while in star they
are connected to a central cable
Ans: A
40. MAC addressing works in data link layer while IP
addressing works in network layer.
A. True
B. False
Ans: A
41. A packet whose destination is outside the local TCP/IP
network segment is sent to the ____ .
A. File server
B. Default gateway
C. DNS server
D. DHCP server
Ans: B
42. Why was the OSI model developed?
A. manufacturers disliked the TCP/IP protocol suite
B. the rate of data transfer was increasing exponentially
C. standards were needed to allow any two systems to communicate
D. none of the above
Ans: C
43. Which piece of information is not vital for a computer
in a TCP/IP network?
A. IP address
B. Default gateway
C. Subnet Mask
D. DNS server
Ans: D
44. The physical layer is concerned with the movement of
_______ over the physical medium.

A. programs
B. dialogs
C. protocols
D. Bits
Ans: D
45. Which protocol below operates at the network layer in
the OSI model?
A. IP
B. ICMP
C. RARP
D. All of the above
Ans: D
46. In the OSI model, as a data packet moves from the
lower to the upper layers, headers are _______.
A. added
B. removed
C. rearranged
D. Modified
Ans: B
47. Session layer of the OSI model provides
A. Data representation
B. Dialog control
C. Remote job execution
D. Creating logical connections
Ans: B
48. IPv6 has _______ -bit addresses.
A. 32
B. 64
C. 128
D. Variable
Ans: C
49. Which one of the following functionalities isn’t
provided by TCP?
A. Flow control

B. Addressing
C. Retransmission of packets as required
D. Proper sequencing of the packets
Ans: B
50. Which of the following can be an Ethernet physical
address?
A. 01:02:01:2C:4B
B. 07:01:02:01:2C:4B:2C
C. 07:01:02:01:2C:4B
D. none of the above
Ans: C
51. An IP address contains________ bits ?
A. 8
B. 16
C. 32
D. 64
Ans: C
52. Which routing protocol below is used by exterior
routers between the autonomous systems?
A. RIP
B. IGRP
C. OSPF
D. BGP
Ans: D
53. Which of the IP headers decides when the packet
should be discarded?
A. Fragment control
B. TTL
C. Checksum
D. Header length
Ans: B
54. Which IP address is reserved for software loop-back?
A. 224.x.x.x
B. 127.x.x.x

C. 0.0.0.0
D. 255.255.255.255
Ans: B
55. What is the network ID for a computer whose IP
address is 190.148.64.23?
A. 190
B. 190.148
C. 190.148.64
D. None of the above
Ans: B
56. Which port is reserved for use of the SMTP protocol?
A. 21
B. 23
C. 25
D. 53
Ans: C
57. Which one of the folowings is a connectionless
protocol?
A. UDP
B. Ethernet
C. IPX
D. All of the above
Ans: D
58. Which application below uses the UDP protocol?
A. DNS
B. TFTP
C. RIP
D. All of the above
Ans: C
59. Howmany IP addresses can be assigned to hosts in a C-
class networksegment with a subnet mask of
255.255.255.192?
A. 62
B. 126

C. 192
D. 254
Ans: A
60. Which of the folowings is not a direct implication of
subnet masks in TCP/IP networks?
A. Reduce network traffic
B. Increase network security
C. Assignment of more IP addresses
D. Better network management
Ans: C

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200+ [updated] computer networking mc qs and answers 2020