Computer Knowledge

Computer Networks

2,256 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

Which of the following is the expanded form of NIC?

  1. Network Information Centre

  2. Netward Information Centre

  3. Network Information Collection

  4. Network Informatics Centre
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

NIC stands for Network Information Centre, which is an organization that manages domain name registrations and provides information about network resources. The other options have spelling errors or incorrect terms. Network Information Centres are crucial for internet infrastructure management.

Multiple choice

Which of the following is essentially the server based network feature?

  1. It has strong central security

  2. Nodes in server client architecture are intelligent

  3. These networks have high bandwidth

  4. All of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Server-based networks feature centralized security management through the server, which authenticates users and controls access to resources. While nodes in client-server architecture can be intelligent and these networks can have high bandwidth, the defining characteristic is the central security authority.

Multiple choice

Which of them is wrong?

  1. Clients can store information

  2. WAN is faster than LAN

  3. Servers only provide network resources

  4. Peer - to - peer network have poor securing

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The question asks which statement is WRONG. WANs (Wide Area Networks) covering large geographic areas are typically slower than LANs (Local Area Networks) due to longer distances, shared infrastructure, and congestion. Options A, C, and D describe true characteristics, making B the false statement.

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.