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

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.

Multiple choice

Subnet is the collection of _____ and _____.

  1. hosts; routers

  2. routers; communication lines

  3. hosts; communication lines

  4. routers; customers

  5. hosts; customers
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In a WAN, hosts are connected by a subnet. Subnet comprises communication lines (copper wire, optical fibre, etc.) and switching elements. Switching elements are connected with two or more communication lines. This switching element is known as router. Router selects the outgoing line for data transmission.

Multiple choice

Which of the following is a concept for a communications network that connects voice and data endpoints within a cloud environment over IP?

  1. IAN

  2. LAN

  3. SAN

  4. PSTN

  5. CAN
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An Internet area network (IAN) is a concept for a communications network that connects voice and data endpoints within a cloud environment over IP, replacing an existing Local Area Network (LAN), Wide Area Network (WAN) and/or Public switched telephone network (PSTN).

Multiple choice

Which of the following defines the packaging of computing resources as a metered service?

  1. Distributed computing

  2. Computer cluster

  3. Utility computing

  4. Edge computing

  5. Parallel computing
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Utility computing is the packaging of computing resources, such as computation, storage and services, as a metered service. This model has the advantage of a low or no initial cost to acquire computer resources; instead, computational resources are essentially rented.