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Fundamental computer networking concepts for PSU preparation

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following statements is a characteristic of point-to-point connection?

  1. It provides a common link used by all the devices.
  2. It cannot be used for microwave or satellite connections.
  3. Its capacity of channel is reserved.
  4. Its capacity of channel is shared.
  5. It is a time-shared connection.
Question 2 Multiple Choice (Single Answer)

What is half-duplex mode?

  1. It is half part of a network.
  2. The sender can transmit only in one direction always.
  3. The stations can both transmit and receive but not at the same time.
  4. The sender can transmit in both directions at the same time.
  5. Both 1 and 3.
Question 3 Multiple Choice (Single Answer)

What are peering points?

  1. They are the points of connection between two devices.
  2. They are the networks connected by switching stations.
  3. ISP networks are connected to each other by private switching stations called peering points.
  4. ISP networks are connected to each other by public switching stations called peering points.
  5. Peering points provide connectivity between end users.
Question 4 Multiple Choice (Single Answer)

What do you mean by framing?

  1. Data link layer divides the stream of bits in manageable data units.
  2. It is the rate at which data is transmitted.
  3. It is the conversion of bits into analog signal.
  4. It is the addition of a header to the data.
  5. It is the addition of a trailer to the data.
Question 5 Multiple Choice (Single Answer)

Which of the following statements describe(s) a mesh network?

  1. Each device has a dedicated point-to-point link with the neighbour.
  2. Each device is connected to a hub.
  3. Hub is the central controller.
  4. Both 2 and 3
  5. Each device is connected to every other device on the network.
Question 6 Multiple Choice (Single Answer)

Which of the following criteria is/are basic for any network?

  1. Performance
  2. Reliability
  3. Type of connection
  4. Mode of data transmission
  5. Both 1 and 2
Question 7 Multiple Choice (Single Answer)

What is a bus topology?

  1. It has a dedicated link.
  2. It has a ring-like structure.
  3. All devices can communicate at the same time in bus topology.
  4. It has a common bus with a cable as backbone and all devices are connected to this central cable.
  5. It has a hub.
Question 8 Multiple Choice (Single Answer)

What is/are the function(s) of physical layer in OSI model?

  1. Representation of bits
  2. Physical topology and line configuration
  3. Flow control
  4. Both 1 and 2
  5. Access control
Question 9 Multiple Choice (Single Answer)

Which of the following describe(s) a LAN?

  1. Its size is not limited by distance.
  2. It can be used to connect nodes in a city or town.
  3. It is used to connect nodes across continents.
  4. LAN is a network used to connect devices within an office building, home or any similar-size network.
  5. Options 1 and 4 are correct.
Question 10 Multiple Choice (Single Answer)

Transport layer is responsible for

  1. processing the delivery
  2. segmentation and reassembly
  3. routing
  4. logical addressing
  5. both 1 and 2
Question 11 Multiple Choice (Single Answer)

What is simplex mode of transmission?

  1. Two or more devices can send and receive data.
  2. It is a protocol.
  3. It is a topology.
  4. It is a network model.
  5. It is a mode in which communication is unidirectional as a one-way street.
Question 12 Multiple Choice (Single Answer)

What is jitter in data communication?

  1. Accuracy
  2. Timeliness
  3. Delivery
  4. Variation in packet arrival time
  5. Efficiency
Question 13 Multiple Choice (Single Answer)

Semantics refers to

  1. a structure or format of data
  2. timing of data
  3. meaning of each section of bits
  4. speed of data
  5. route of data
Question 14 Multiple Choice (Single Answer)

Which of the following properties belong(s) to local Internet Service Providers(ISPs)?

  1. They provide service to the server.
  2. They provide service to the regional ISP.
  3. They provide direct service to the end user.
  4. Each local ISP is connected to a national or regional ISP.
  5. Both 3 and 4 are correct.
Question 15 Multiple Choice (Single Answer)

What standards does the International Organization for Standardization(ISO) certify?

  1. The scientific, technological and economical activities
  2. Telecommunication
  3. Electrical engineering, electronics and radio
  4. Computing and communications
  5. Programming languages
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