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 these is NOT an example of a node?

  1. Router

  2. Cell Phone

  3. Computer

  4. WIFI
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A node is any device connected to a network that can send, receive, or forward information. WIFI is a technology or standard for wireless networking, not a physical device or node itself.

Multiple choice

LAN stands for what?

  1. Land Area Network

  2. Local Area Network

  3. Locally Accepted Node

  4. Linked Anyone Network
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

LAN stands for Local Area Network, which is a network that connects computers and devices in a limited area such as a home, school, or office building.

Multiple choice

The internet is what type of network?

  1. LAN

  2. MAN

  3. WAN
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The internet is a Wide Area Network (WAN) because it spans a large geographical area, connecting smaller networks across cities, countries, and continents.

Multiple choice

It is possible to chain VPN servers together.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Chaining VPNs, often called multi-hop or double VPN, involves routing traffic through multiple VPN servers sequentially to increase anonymity and security.

Multiple choice

What is Machine-to-Machine (M2M) Communication?

  1. Communication between two or more machines without human intervention

  2. Communication between a machine and a human

  3. Communication between two or more humans using machines

  4. Communication between a machine and a network
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

M2M communication refers to the exchange of information between two or more machines without the need for human intervention.

Multiple choice

Which technology allows for the transmission of data over a wireless network, enabling devices to connect to the Internet without the use of cables?

  1. Wi-Fi

  2. Bluetooth

  3. Cellular Network

  4. Satellite Communication
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wi-Fi technology allows for the transmission of data over a wireless network, enabling devices to connect to the Internet without the use of cables. It has become a widely adopted technology for home, office, and public spaces.

Multiple choice

Which of the following is a type of wireless network that uses radio waves to transmit data over short distances?

  1. Cellular Network

  2. Wi-Fi

  3. Bluetooth

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cellular networks, Wi-Fi, and Bluetooth are all types of wireless networks that use radio waves to transmit data over short distances.

Multiple choice

What is the standard for wireless local area networks (WLANs)?

  1. 802.11

  2. 802.15

  3. 802.16

  4. 802.20
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

802.11 is the standard for WLANs, which are wireless networks that allow devices to connect to the internet and communicate with each other within a limited range.

Multiple choice

Which of the following is a type of wireless network that uses infrared light to transmit data?

  1. Wi-Fi

  2. Bluetooth

  3. IrDA

  4. NFC
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

IrDA (Infrared Data Association) is a type of wireless network that uses infrared light to transmit data over short distances.

Multiple choice

Which of the following is a type of wireless network that uses high-frequency radio waves to transmit data over long distances?

  1. Cellular Network

  2. Wi-Fi

  3. Microwave

  4. Satellite
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Microwave networks use high-frequency radio waves to transmit data over long distances, often used for point-to-point communication.

Multiple choice

Which of the following is a type of wireless network that uses low-power radio waves to transmit data over short distances?

  1. Cellular Network

  2. Wi-Fi

  3. Bluetooth

  4. Zigbee
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Zigbee is a type of wireless network that uses low-power radio waves to transmit data over short distances, often used for home automation and industrial applications.

Multiple choice

Which of the following is a type of wireless network that uses unlicensed spectrum?

  1. Cellular Network

  2. Wi-Fi

  3. Bluetooth

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cellular networks, Wi-Fi, and Bluetooth all use unlicensed spectrum, which is available for public use without a license.