COMPUTER NETWORKS MCQS

B. Half Duplex D. None of These

18. Which topology requires a central controller or hub?

A. Mesh C. Star 35. Conversion of two persons via phone is an example of:
B. Bus D. Ring A. Full Duplex C. Simplex
19. The ___ is the physical path over which a message travels. B. Half Duplex D. None of These
A. Protocol C. Medium 36. It uses start/stop bits:
B. Signal D. All of These A. Serial Transmission C. Synchronous Transmission

20. In a _____ connection, more than two devices can share a single link: B. Analog Transmission D. Asynchronous Transmission

A. Primary C. Secondary 37. How many types the communication media divided?
B. Multipoint D. Point to Point A. 2 C. 4
21. _______ refers to the structure or format of the data: B. 3 D. 5
A. Semantics C. Syntax 38. Which of the following is not a communication media?
B. Timing D. All of These A. STP C. Microwave
22. An unauthorized user is a network _______ issue. B. UTP D. Modem
A. Security C. Performance 39. Which of the following is a guided media?
B. Reliability D. All of These A. Microwave C. Fiber Optic Cable
In _______ transmission, the channel capacity is shared by both B. Satellite D. None of These
23. communicating devices at all times.
40. Which of the following uses light to transmit data?
A. Simplex C. Full Duplex
A. Twisted Pair Cable C. Microwave
B. Half Duplex D. None of These
B. Coaxial Cable D. Fiber Optical Cable
24. A collection of computers connected together is called:
41. Which communication medium requires “line of sight”
A. Processing C. Chatting
A. Twisted Pair Cable C. Microwave
B. Network D. None
B. Coaxial Cable D. Fiber Optic Cable
25. Each Computer in the network is called:
42. In microwave, the distance b/w two towers is:
A. Terminal C. Node
A. 200 to 300 miles C. 2 to 3 miles
B. Terminator D. Both A & C
B. 20 to 30 miles D. 100 to 200 miles
26. It controls the overall functioning of a network:
43. Satellites are approximately ____ miles above the earth:
A. Client C. Gateway
A. 300 C. 23000
B. Server D. Terminal
B. 22000 D. 2330
27. Process of transferring data from one location to another is called:
44. Which effects the quality of satellite transmission:
A. Data Processing C. Data Communication
A. Mountains C. Light Rays
B. Data Computing D. Data Sequencing
B. Moon D. Bad Weather
28. Information that to be transferred is called:
45. “bps” stands for:
A. Signals C. Sender
A. Bytes Per Second C. Baud Per Seconds
B. Data D. Message
B. Bits Per Second D. None of These
29. Data Communication requires:
46. Which connects two or more difference or similar networks?
A. Sender C. Medium
A. Router C. Gateway
B. Receiver D. All of These
B. Bridge D. Switch
30. Physical path that connects the source and receiver is:
47. Which one can be used to connect two dissimilar networks:
A. Medium C. Encoder
A. Ethernet Card C. Gateway
B. Decoder D. Protocol
B. Bridge D. Switch
31. In which data communication can take place only in one direction?
48. Which one can be used to connect two similar networks:
A. Simplex C. Full Duplex
A. Router C. Gateway
B. Half Duplex D. None of These
B. Bridge D. Switch
32. How many types of data transmission modes are there?
49. _________ connects devices together in LAN.
A. 2 C. 4
A. Router C. Gateway
B. 3 D. 5
B. Bridge D. Switch
33. Communication b/w a computer and keyboard involves
50. Which one is dedicated server?
A. Full Duplex C. Simplex
A. File Server C. Database Server
B. Half Duplex D. None of these
B. Print Server D. All of These
34. Internet surfing is an example of:
51. In which network all computers have equal status:
A. Full Duplex C. Simplex
A. Client-Server C. Hybrid
B. Peer-to-Peer D. None of These A. Data Link C. Transport
52. Peer-to-Peer network consist of ________ computers: B. Network D. Physical
A. Less than 10 C. Less than 5 70. The OSI Layer that translate format required/ accepted by computers:

B. More than 100 D. Many A. Presentation C. Transport

B. Network D. Physical

53. Which covers a short distance:

A. LAN C. WAN 71. ___ OSI model uses communication protocol for transmission control?

B. MAN D. None of These A. Transport C. Application

54. Which device is used to connect two computers via telephone line: B. Physical D. Network
A. Ethernet Card C. Router 72. Which layer of OSI model performs data compression:
B. Gateway D. Modem A. Network C. Data Link
55. The internet is an example of: B. Presentation D. Physical
A. LAN C. WAN 73. Routers & switches are used in ______ OSI layer.
B. MAN D. VPN A. Data Link C. Transport
56. All nodes are connected to a single topology: B. Physical D. Network
A. Tree Topology C. Star Topology 74. This layer in OSI model gets data from an application:
B. Bus Topology D. Mesh Topology A. Physical C. Transport
57. One or more computers connected to hum computer is: B. Application D. Presentation
A. Ring Network C. Mesh Topology 75. This layer in OSI Model transmits data to receiver:
B. Bus Topology D. Star Topology A. Physical C. Data Link
58. Which network topology involves the concept of routes: B. Network D. Presentation
A. Ring Network C. Mesh Topology 76. OSI model was developed by:
B. Bus Topology D. Star Topology A. ANSI C. IBM
59. OSI reference model has layers: B. ISO D. SUPARCO
A. 7 C. 3 77. Topology covers security, robust and eliminating the traffic factor?

B. 6 D. 11 A. Mesh C. Bus
60. OSI Stands for: B. Ring D. Star
A. Open System Interconnection C. Open Small Internet 78. Common LAN topologies are:
B. Open System International D. Open System Interlink A. Bus & Ring C. Star
61. Which layer provided network services to user application: B. Mesh & Ring D. Both A & C
A. Presentation C. Session 79. Synonymous of the rule is:
B. Network D. Application A. Standard C. Forum
62. Which OSI layer is responsible for data breaking into segments? B. Protocol D. Agency
A. Presentation C. Data Link 80. The elapsed time between an inquiry and a response is called:
B. Transport D. Physical A. Transit Time C. Processing Time
63. Which OSI layer controls transmission over the transmission medium: B. Delay Time D. Response Time
A. Presentation C. Data Link 81. Nodes are another name of:
B. Transport D. Physical A. Devices C. Medium
64. layer responsible 4 establishing, maintaining connection b/w devices: B. Links D. Modes
A. Presentation C. Session 82. Difficult reconnection and fault isolation are the disadvantages of:

B. Network D. Application A. Star Topology C. Ring Topology

65. The format of an IP address is a ___ numeric address: B. Bus Topology D. Mesh Topology
A. 16-bit C. 64-bit 83. Connection of telephone regional office is the practical example of:
B. 32-bit D. 8-bit A. Ring Topology C. Mesh Topology
66. IP Address is divided into _____ classes: B. Hybrid Topology D. Star Topology
A. 2 C. 8 84. Cable TV and DSL are examples of:
B. 3 D. 16 A. LAN C. WAN
67. It is a valid IP Address: B. MAN D. None of These
A. 216.27.61 C. 01010101010101010 85. Which perform modulation and de-modulation:
B. 216.27.61.555 D. 21.27.61.02 A. Co-axial Cable C. Switch
68. Which OSI Layer perform code conversion: B. Hub D. Modem
A. Presentation C. Data Link
B. Application D. Physical
69. which OSI layer determines logical path b/w source and destination: ________________________________
86. Data can be in the form of:
A. Text C. Video
B. Audio D. All of These
87. Height of wave within a given period of time is called:
A. Analogue Signal C. Amplitude
B. Frequency D. Encoder
88. The number of times a wave repeat itself during interval time:

A. Analogue Signal C. Amplitude

B. Frequency D. Encoder
89. This protocol is used to view a web document in browsers:
A. TELNET C. FTP
B. HTTP D. SMTP
90. LAN is a collection of computers that share:
A. Hardware C. Data
B. Software D. All of These
91. The combination of two or more topologies are called:
A. Star Topology C. Ring Topology
B. Bus Topology D. Hybrid Topology
92. The newest evolution in LAN technology is:
A. Wireless C. DSL
B. Internet D. TV Networks
93. Ease of installation is the main advantage of:
A. Star Topology C. Ring Topology
B. Bus Topology D. Hybrid Topology
94. The internetworking protocol is known as:
A. TCP C. ISP
B. IP D. TCP/IP
95. Defacto means
A. By fact C. By nature
B. By law D. By network
96. The repeater is used in:
A. Star Topology C. Ring Topology
B. Bus Topology D. Hybrid Topology
97. In bus topology, the device linking all the nodes in a network is:

A. Router C. Drop line

B. Backbone D. Hub
98. ATM is an example of:
A. MAN C. Switched WAN
B. Point to Point WAN D. LAN
99. ISP stands for:
A. Internet Service Provider C. International Service Provider

B. Internet System Provider D. International Service Program

100. The star topology is less expensive then:

A. Mesh C. Bus
B. Ring D. Hybrid

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