Computer Networks MCQs Questions for Online Quiz Test Preparation

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These Computer Networks MCQs are specially Designed for students of Computer Science Topics covered in these MCQs On Introduction to Data Communication, Physical Topologies & Network Categories, Introduction to Protocols & Standards, The OSI Model TCP/IP Protocol Suite, Analog Signals, Digital Signals, Multiplexing, Spread Spectrum Techniques, Guided Transmission Media, Unguided Transmission Media, Wireless Transmission Waves, Ethernet Standards, IEEE 802 working Group, LLC & Layer 2 Frame Layer 2 addresses & Mac table, Switching, IPv4 logical Addressing, Classful Addressing Classless Addressing, Network Address Translation, IPv6, Translation from IPv4 to IPv6, ICMP, IGMP, Delivery, Forwarding, Unicast Routing Protocol, Multicast Routing Protocol, User Datagram Protocol (UDP), Transmission Control Protocol (TCP), Domain Name System (DNS), Firewall

Basic Computer Networks MCQs


1. In respect of the OSI Model, LANs Implement?
B. All seven layers
C. Upper five layers
D. None of the above
View Answer

  All seven layers


2. TCP /IP is related to?
A. ARPANET
B. ISO-OSI
C. DECNET
D. None of the above
View Answer

None of the above


3. Encryption and decryption are functions of?
A. Transport layer
B. Session layer
C. Presentation Layer
D. None of the above
View Answer

Presentation Layer
 


4. Addresses of classes A, B, and C are.
A. Multicast
B. Reserved
C. Unicast
D. All of above
View Answer

  All of the above
 


5. Addresses in a block must be.
A. Random
B. Contiguous
C. Repetitive
D. Oddly arranged
View Answer

Contiguous
 


6. Frequency of failure and network recovery time after a failure are measures of the —— of a network.
A.Medium
B. Protocol
C. Message
D. Performance
View Answer

Performance
 


7. An Unauthorized user is a network ——– issue.
A.Performance
B.Reliability
C.Security
D.All the above
View Answer

Security
 


8. In the original ARPANET—– were directly connected together.
A.IMPs
B. Host computer
C.Networks
D.Routers
View Answer

IMPs
 


9. —– defines how a particular pattern to be interpreted, and what action is to be taken base on that interpretation.
A.Semantics
B. Syntax
C. Timing
D. None of the above
View Answer

Semantics
 


10. The Processes-to-processes delivery of the entire message on the network is the responsibility of the —————– layer?
A.Network
B.Physical
C.Application
D.Transport
View Answer

Transport
 


11. The Internetworking protocol (IP) is a ————– Protocol.
A.Reliable
B. Connection-oriented
C. both a and b
D. none-of the above
View Answer

Reliable
 


12. TCP is a ———— Protocol.
A.Stream-Orinted
B. Message-Oriented
C. Block-oriented
D. Packet-Oriented
View Answer

Packet-Oriented
 


13. To use the service of UDP, we need ——————— socket address.
A.Four
B. Two
C. Three
D.one
View Answer

one
 


14. In Cisco Switch how many do we have modes ?
A. One
B. Two
C. Three
D. Four
View Answer

Three
 


15. Multiplexing technique that is used when the data rate of an input line is a multiple of others is called.
A. Multilevel Multiplexing
B. Multiple-Slot Allocation
C. Pulse stuffing
D. Asynchronous TDM
View Answer

Multilevel Multiplexing
 


16. Completion of one full pattern is called a.
A. Period
B. Cycle
C. Frame
D. Segment
View Answer

Cycle
 


17. In Cisco Switch CLI the Configuration mode is?
A. Switch>
B. Switch(confg)#
C. Switch(Confg-if)#
D. Switch#
View Answer

Switch(confg)#
 


18. The VLAN is the replacement of Work Group ?
A.Yes
B. No
C. Partially Yes
D. Partially No
View Answer

Yes
 


19. When we communicate with respect to time with multiple signals?
A. FDMA
B. CDMA
C. TDMA
D.MDMA
View Answer

TDMA
 


20. In work Group, we can send and received a data form any node.
A.Yes
B. No
C. Depends on user rights
D. Node will not shown
View Answer

Depends on user rights
 


21. The FLSM means ?
A. Divide the network in equal parts
B. No Equal
C. Fixed
D. None of them
View Answer

Divide the network in equal parts
 


22. localhost ip address is?
A. 127.0.0.1
B. 127.1.1.1
C. 127.0.0.0
D. 0.0.0.0
View Answer

127.0.0.1
 


23. Which of the following describes router functions?
A. Packet switching
B. Packet Filtering
C. Internetwork Communication
D. Path Selection
View Answer

Path Selection
 


24. What protocol does ping use?
A.TCP
B. ARP
C. ICMP
D. UDP
View Answer

ICMP


25. What type of RJ45 UTP cable do you use to connect a PC’s COM port to a router or switch console port?
A. Straight-trough.
B. Crossover cable.
C. Crossover with a CSU/DSU.
D. Rolled.
View Answer

Crossover with a CSU/DSU.
 


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26. Router is a —– Layer Device.
A. Layer 1
B. Layer 3
C. Layer 1
D. Layer 7
View Answer

Layer 3


27. The number of addresses assigned to an organization in classless addressing ___.
A. can be any number
B. must be a multiple of 256
C. must be a power of 2
D. None of the choices are correct
View Answer

must be a power of 2
 


28. The Examples of interior Gateway Protocols IGP are.
A.OSPF
B.RIP
C. EIGRP
D.IGRP
View Answer

EIGRP
 


29. If we are on the LAN and want to access Local Server then we use the address?
A. 127.0.0.1/app
B. 192.168.1.1/app
C. IP of Server/app
D. IP of app server/app
View Answer

IP of app server/app
 


30. Which of the routing protocols is used for finding the shortest path and delivery of the message?
A.OSPF+RIP
B.OSPF+HTTP
C.EIGRP+OSPF
D.IP+OSPF
View Answer

A.OSPF+RIP
 


31. When the Logical address resolve into a physical address which of the following protocol is used?
A.RARP
B. ARP
C. ARP+RARP
D. DNS
View Answer

ARP
 


32. Switch is a —– Layer Device.
A. Layer 1
B. Layer 3
C. Layer 2
D. Layer 7
View Answer

B. Layer 3
 


33. The Default subnet mask of Class A is.
A. 255.255.0.0
B. 255.255.255.0
C. 255.255.255.0
D. 255.0.0.0
View Answer

255.255.255.0
 


34. —-addresses use 24 bits for the and 8 bits for the portion of the IP address for the TCP/IP network.
A. Class A
B. Class B
C. Class D
D. Class E
View Answer

Class A


35. In Class C the Network ID is between ——.
A. 0 to 127
B. 128 to 191
C. 192 to 223
D. None of them
View Answer

192 to 223
 


36. “Show Vlan” command at CLI Display the data about.
A.VLAN name
B.VLAN name and ID
C.ID, Name , IP
D. All above
View Answer

All above
 


37. The input and output ports of a router perform the —— layer functions of the router.
A. Physical and Data Link
B. Network
C. Transport
D. None of them
View Answer

Network
 


38. VLAN is the Technology of?
A. Microsoft
B. Cisco
C.IBM
D. Cisco + Microsoft
View Answer

Cisco
 


39. Which of the Protocol is used for Transferring Files?
A.FTP
B. SNMP
C. SMTP
D.RPC
View Answer

FTP
 


40. In —- multiple accesses are achieved by allocating different time slots for the different users.
A. TDMA
B. CDMA
C. FDMA
D. FGMA
View Answer

TDMA
 


Advanced Computer Networks MCQs


41. In TDM, slots are further divided into.
A. Seconds
B. Frames
C. Packets
D. None of the mentioned
View Answer

Seconds
 


42. Best communication in the switch is.
A. Multicast
B. nocast
C. Uni-cast
D. None of above
View Answer

Multicast
A

43. Mimo Antenna Are Used In Ieee___?
A. 802.11a
B. 802.11b
C. 802.11n
D. 802.11ac
View Answer

802.11n


44. Rj-45 Connector Is Used With ________ Cable.
A. Utp
B. Co-Axial
C. Optic Fiber
View Answer

Utp


45. tandard For Bluetooth Is Ieee_____?
A. 802.11
B. 802.3
C. 802.15
D. 802.16
View Answer

802.15


46. Telecommunication Is The Communication At The ____?
A. Local
B. Distance
C. Loopback
D. Synchronous
View Answer

Distance


47. Transmission Media Belong To _____ Layer .
A. Physical
B. Logical
C. Application
D. Session
View Answer

Physical


48. Variance In The Delay Is Referred As___?
A. Performance
B. Jitter
C. Propagation
D. Bandwidth
View Answer

Jitter


49. Where protocol Layering Is Necessary?
A. Simple Communication
B. Complex Communication

View Answer

Complex Communication


50. Which Is Not A Component Of Network
A. Protocol
B. Interface
C. IEEE
D. Computer
View Answer

IEEE

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