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

What is the term used to describe the situation when data packets are lost during transmission?

  1. Latency

  2. Bandwidth

  3. Jitter

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

Packet loss occurs when data packets are dropped or corrupted during transmission, resulting in missing or incomplete information being received. This can lead to issues such as lag, stuttering, and desynchronization in multiplayer games.

Multiple choice

Which technique is used to reduce the amount of data that needs to be transmitted over the network in game networking?

  1. Data compression

  2. Packet bundling

  3. Delta encoding

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

Data compression, packet bundling, and delta encoding are all techniques used to reduce the amount of data that needs to be transmitted over the network in game networking. Data compression reduces the size of data packets by removing redundant information. Packet bundling combines multiple data packets into a single larger packet, reducing the number of packets that need to be sent. Delta encoding only sends the differences between the current game state and the previous game state, further reducing the amount of data that needs to be transmitted.

Multiple choice

Which technology enables vehicles to communicate with each other and with roadside infrastructure in ITS?

  1. Bluetooth

  2. Wi-Fi

  3. Cellular Networks

  4. Dedicated Short-Range Communications (DSRC)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

DSRC is a wireless communication technology specifically designed for ITS applications, providing low-latency and reliable communication between vehicles and roadside infrastructure.

Multiple choice

Which ITS technology enables vehicles to communicate with each other and with roadside infrastructure to form platoons?

  1. Bluetooth

  2. Wi-Fi

  3. Cellular Networks

  4. Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) Communication
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

V2V and V2I communication allows vehicles to share information about their speed, position, and trajectory, enabling them to form platoons and improve traffic flow.

Multiple choice

Which of the following is NOT a common type of data acquisition system?

  1. Centralized data acquisition system

  2. Distributed data acquisition system

  3. Wireless data acquisition system

  4. Cloud-based data acquisition system
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cloud-based data acquisition systems are not a common type of data acquisition system, as they require a reliable internet connection and can be expensive to implement.

Multiple choice

Which of the following is NOT a common type of data transmission technology?

  1. Wired connection

  2. Wireless connection

  3. Cellular connection

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

Satellite connections are not a common type of data transmission technology for environmental monitoring, as they can be expensive to implement and are not always reliable.

Multiple choice

Which type of communication infrastructure is commonly used for wireless communication?

  1. Fiber Optic Cables

  2. Cellular Networks

  3. Satellite Systems

  4. Copper Wires
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cellular networks, consisting of interconnected cell towers, provide wireless communication services, allowing mobile devices to connect to the network and communicate with each other.

Multiple choice

Which communication technology is known for its ability to transmit data at high speeds over long distances?

  1. Dial-Up Modems

  2. Fiber Optic Cables

  3. Microwave Communication

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

Fiber optic cables, utilizing light pulses to transmit data, offer extremely high bandwidth and low latency, enabling rapid data transmission over long distances.

Multiple choice

What is the term used to describe the process of sending data from one device to multiple devices simultaneously?

  1. Encryption

  2. Broadcasting

  3. Multiplexing

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

Broadcasting involves sending data from a single source to multiple receivers simultaneously, often used in radio and television transmissions.

Multiple choice

Which communication technology enables high-speed wireless internet access within a limited range?

  1. Bluetooth

  2. Wi-Fi

  3. Cellular Networks

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

Wi-Fi technology utilizes radio waves to provide wireless internet access within a limited range, typically within a building or a small area, allowing devices to connect to the internet without the need for cables.

Multiple choice

Which type of code is used to detect errors in data transmission?

  1. Block code

  2. Convolutional code

  3. Linear code

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

Block codes are commonly used for error detection in data transmission.

Multiple choice

Which of the following is a common application of coding theory in network coding?

  1. Error correction in data transmission

  2. Data compression

  3. Network congestion control

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

Coding theory is used in various applications in network coding, including error correction in data transmission, data compression, and network congestion control.

Multiple choice

Which technology has revolutionized military communications by enabling secure and reliable communication over long distances?

  1. Satellite Communications

  2. Fiber Optic Cables

  3. Microwave Communications

  4. High-Frequency Radio Communications
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Satellite Communications provide secure and reliable communication links between military units, regardless of their location.

Multiple choice

Which of the following is an example of communication infrastructure?

  1. Telecommunication networks

  2. Radio and television broadcasting

  3. Postal services

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

Telecommunication networks, radio and television broadcasting, and postal services are all examples of communication infrastructure.

Multiple choice

Which of the following is NOT a common type of system architecture?

  1. Centralized Architecture

  2. Decentralized Architecture

  3. Hierarchical Architecture

  4. Networked Architecture

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

Centralized Architecture is not a common type of system architecture, as it refers to a system where all processing and decision-making is done by a single central unit, which is not typically used in modern systems engineering.