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

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.

Multiple choice

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

  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 spread spectrum technology, which spreads the signal over a wider frequency range to reduce interference.

Multiple choice

Which of the following is NOT a type of communication system used between aircraft and air traffic control?

  1. VHF (Very High Frequency)

  2. UHF (Ultra High Frequency)

  3. HF (High Frequency)

  4. SSB (Single Sideband)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

SSB (Single Sideband) is not a type of communication system used between aircraft and air traffic control. It is a type of modulation used in radio communication.

Multiple choice

What is the term for the maximum amount of data that can be transmitted over a network connection in a given amount of time?

  1. Bandwidth

  2. Throughput

  3. Latency

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

Bandwidth refers to the maximum data transfer rate that a network connection can support. It is typically measured in bits per second (bps) and determines the overall capacity of the network to handle data traffic.

Multiple choice

What is the term for the process of dividing a network into multiple logical or physical segments to improve performance and security?

  1. Load Balancing

  2. Network Segmentation

  3. Traffic Shaping

  4. Quality of Service (QoS)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Network segmentation involves dividing a network into multiple logical or physical segments. This helps isolate network traffic, improve security, and optimize performance by reducing the number of devices and traffic on each segment.

Multiple choice

What is the term for the process of distributing network traffic across multiple paths to improve performance and reliability?

  1. Load Balancing

  2. Network Segmentation

  3. Traffic Shaping

  4. Quality of Service (QoS)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Load balancing is a technique used to distribute network traffic across multiple paths or servers to improve performance and reliability. It helps prevent overloading any single resource and ensures that traffic is handled efficiently.

Multiple choice

Which network performance metric measures the amount of data that is successfully transmitted over a network in a given amount of time?

  1. Throughput

  2. Latency

  3. Packet Loss

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

Throughput is a metric that measures the amount of data that is successfully transmitted over a network in a given amount of time. It is typically measured in bits per second (bps) and indicates the overall capacity of the network to handle data traffic.

Multiple choice

What is the process of dividing a physical network into multiple virtual networks called?

  1. Network slicing

  2. Network virtualization

  3. Network segmentation

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

Network slicing is the process of dividing a physical network into multiple virtual networks, each with its own unique characteristics and performance requirements.

Multiple choice

Which of the following is NOT a type of network slice?

  1. Control plane slice

  2. User plane slice

  3. Management plane slice

  4. Data plane slice
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

There are two types of network slices: control plane slice and user plane slice. The management plane slice is responsible for managing the network, while the user plane slice is responsible for carrying user traffic.

Multiple choice

Which of the following is NOT a type of network virtualization technology?

  1. Software-defined networking (SDN)

  2. Network function virtualization (NFV)

  3. Virtual private networks (VPNs)

  4. Network address translation (NAT)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

SDN and NFV are network virtualization technologies, while VPNs and NAT are network security technologies.

Multiple choice

What is the difference between a network slice and a virtual network?

  1. Network slices are created on top of virtual networks

  2. Virtual networks are created on top of network slices

  3. Network slices and virtual networks are the same thing

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

Network slices are created on top of virtual networks, which provide the underlying infrastructure for the network slices.

Multiple choice

Which connectivity protocol is commonly used for communication between vehicles and roadside infrastructure?

  1. Bluetooth

  2. Wi-Fi

  3. Cellular networks

  4. Vehicle-to-Infrastructure (V2I) communication
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

V2I communication enables vehicles to exchange information with roadside infrastructure, such as traffic signals, toll booths, and weather stations, to improve traffic flow and safety.