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
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2. TCP /IP is related to?
A. ARPANET
B. ISO-OSI
C. DECNET
D. None of the above
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3. Encryption and decryption are functions of?
A. Transport layer
B. Session layer
C. Presentation Layer
D. None of the above
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4. Addresses of classes A, B, and C are.
A. Multicast
B. Reserved
C. Unicast
D. All of above
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5. Addresses in a block must be.
A. Random
B. Contiguous
C. Repetitive
D. Oddly arranged
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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
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7. An Unauthorized user is a network ——– issue.
A.Performance
B.Reliability
C.Security
D.All the above
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8. In the original ARPANET—– were directly connected together.
A.IMPs
B. Host computer
C.Networks
D.Routers
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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
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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
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11. The Internetworking protocol (IP) is a ————– Protocol.
A.Reliable
B. Connection-oriented
C. both a and b
D. none-of the above
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12. TCP is a ———— Protocol.
A.Stream-Orinted
B. Message-Oriented
C. Block-oriented
D. Packet-Oriented
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13. To use the service of UDP, we need ——————— socket address.
A.Four
B. Two
C. Three
D.one
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14. In Cisco Switch how many do we have modes ?
A. One
B. Two
C. Three
D. Four
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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
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16. Completion of one full pattern is called a.
A. Period
B. Cycle
C. Frame
D. Segment
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17. In Cisco Switch CLI the Configuration mode is?
A. Switch>
B. Switch(confg)#
C. Switch(Confg-if)#
D. Switch#
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18. The VLAN is the replacement of Work Group ?
A.Yes
B. No
C. Partially Yes
D. Partially No
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19. When we communicate with respect to time with multiple signals?
A. FDMA
B. CDMA
C. TDMA
D.MDMA
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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
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21. The FLSM means ?
A. Divide the network in equal parts
B. No Equal
C. Fixed
D. None of them
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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
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23. Which of the following describes router functions?
A. Packet switching
B. Packet Filtering
C. Internetwork Communication
D. Path Selection
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24. What protocol does ping use?
A.TCP
B. ARP
C. ICMP
D. UDP
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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.
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26. Router is a —– Layer Device.
A. Layer 1
B. Layer 3
C. Layer 1
D. Layer 7
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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
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28. The Examples of interior Gateway Protocols IGP are.
A.OSPF
B.RIP
C. EIGRP
D.IGRP
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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
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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
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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
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32. Switch is a —– Layer Device.
A. Layer 1
B. Layer 3
C. Layer 2
D. Layer 7
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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
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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
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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
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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
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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
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38. VLAN is the Technology of?
A. Microsoft
B. Cisco
C.IBM
D. Cisco + Microsoft
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39. Which of the Protocol is used for Transferring Files?
A.FTP
B. SNMP
C. SMTP
D.RPC
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40. In —- multiple accesses are achieved by allocating different time slots for the different users.
A. TDMA
B. CDMA
C. FDMA
D. FGMA
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Advanced Computer Networks MCQs
41. In TDM, slots are further divided into.
A. Seconds
B. Frames
C. Packets
D. None of the mentioned
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42. Best communication in the switch is.
A. Multicast
B. nocast
C. Uni-cast
D. None of above
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43. Mimo Antenna Are Used In Ieee___?
A. 802.11a
B. 802.11b
C. 802.11n
D. 802.11ac
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44. Rj-45 Connector Is Used With ________ Cable.
A. Utp
B. Co-Axial
C. Optic Fiber
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45. tandard For Bluetooth Is Ieee_____?
A. 802.11
B. 802.3
C. 802.15
D. 802.16
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46. Telecommunication Is The Communication At The ____?
A. Local
B. Distance
C. Loopback
D. Synchronous
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47. Transmission Media Belong To _____ Layer .
A. Physical
B. Logical
C. Application
D. Session
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48. Variance In The Delay Is Referred As___?
A. Performance
B. Jitter
C. Propagation
D. Bandwidth
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49. Where protocol Layering Is Necessary?
A. Simple Communication
B. Complex Communication
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50. Which Is Not A Component Of Network
A. Protocol
B. Interface
C. IEEE
D. Computer
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