Computer Knowledge

Computer Networks

2,095 Questions

Computer networks form the backbone of digital communication, connecting multiple devices to share data and resources. This area covers network architectures, transmission media, modems, and topologies like LAN. These concepts are crucial for computer knowledge sections in banking and government exams.

Network topologiesModulation and demodulationNetwork addressingFiber optic cablesWireless infrastructure

Computer Networks Questions

Multiple choice

The way through which message passes, is called

  1. mode

  2. channel

  3. medium

  4. transmission wire
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A 'channel' in communication is the pathway through which a message travels from sender to receiver. It can be physical (air, wire) or virtual (email, video). 'Mode' refers to the method, 'medium' to the form, but 'channel' specifically means the conduit.

Multiple choice

Which of the following is/are incorrect statement(s) about multicast communication in CCNA routing?

  1. In multicast communication, the sender transmits only one copy of data and it is processed to many devices.

  2. There must be only one sender and one receiver in multicast communication.

  3. Downloading a file from a FTP server is an example of multicast communication.

  4. Both (1) and (2)

  5. Both (2) and (3)
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

These are the incorrect statements about multicast communication.

Multiple choice

What are the functionalities of a network hub?

  1. Hubs are the network infrastructure devices used for Local Area Network (LAN).

  2. In a hub, if the two network devices on the same network try to send packets at the same time, then a collision is possible.

  3. Hubs segment large networks into logical segments called subnets.

  4. All of the above

  5. Both (1) and (2)
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

These are the correct statements.

Multiple choice

Which of the following is/are false statements about a network switch?

  1. Each port of a network switch has a separate collision domain.

  2. A network switch has only a few ports and connects with only a few collision domains or hosts.

  3. A bridge has comparatively less ports than a network switch.

  4. The network switches operate at the data link layer of the OSI model.

  5. Both (1) and (2)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A network switch has so many ports and collisions. A bridge has only a few ports and connects with only a few collision domains, or hosts.

Multiple choice

What is the work of IEEE 802.10 Protocol while communicating with VLANs?

  1. This protocol is used to interconnect two VLAN-capable Ethernet.

  2. The protocol provides authenticity or integrity to the data.

  3. This protocol interconnects multiple switches and routers.

  4. This protocol does not provide any connectivity for the VLANs.

  5. Both (2) and (3)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

IEEE 802.10 Protocol provides authentication and encryption techniques to ensure data confidentiality and integrity.

Multiple choice

What is the work of Inter-Switch Link Protocol (ISL) with communicating VLANs?

  1. This protocol is used to interconnect two VLAN-capable Ethernets.

  2. The protocol provides authentication and encryption techniques to ensure data confidentiality and integrity.

  3. This protocol interconnects multiple switches and routers.

  4. This protocol does not provide any connectivity for the VLANs.

  5. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

ISL protocol interconnects two VLAN-capable Ethernets or Gigabit Ethernet devices.

Multiple choice

What is the work of IEEE 802.1Q Protocol while communicating with VLANs?

  1. This protocol is used to interconnect two VLAN-capable Ethernet.

  2. The protocol provides authenticity or integrity to the data.

  3. This protocol interconnects multiple switches and routers.

  4. All of the above

  5. Both (2) and (3)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

IEEE 802.1Q Protocol is used for interconnecting the switches, routers and hubs for the VLAN's communication.

Multiple choice

IEEE 802.16 is a standard of

  1. Ethernet

  2. IBM token ring

  3. Wireless MAN

  4. Wireless LAN

  5. Broadband LAN
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

IEEE802.16 is the wireless broadband standard authorised by IEEE. The work group is to develop standards for Wireless Metropolitan Area Networks.

Multiple choice

The third generation of wireless network used in wide area system is

  1. analog, used for voice only

  2. digital, used for voice only

  3. digital, used for data only

  4. digital, used for both data and voice

  5. analog, used for both data and voice
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Third generation wireless network is digital, and it is used for transmitting both data and voice.

Multiple choice

The base station for the wireless network is

  1. antenna

  2. bluetooth

  3. switch

  4. protocol

  5. access point
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

A base station is a radio receiver/transmitter that serves as the hub of the local wireless network. Access point includes special purpose hardware as well as general purpose computers that are configured to act as base stations or transceivers for wireless LANs.