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 network of physical devices that are connected to the internet and can collect and exchange data?

  1. Cybersecurity

  2. Cyberwarfare

  3. Cyberespionage

  4. Internet of Things (IoT)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Internet of Things (IoT) is the network of physical devices that are connected to the internet and can collect and exchange data.

Multiple choice

Which protocol is commonly used for communication between industrial devices in a factory automation network?

  1. Ethernet

  2. Modbus

  3. Profibus

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

Modbus is a widely adopted protocol for industrial communication, providing a simple and reliable method for data exchange between devices.

Multiple choice

Which industrial networking technology enables real-time communication with high bandwidth and low latency?

  1. Ethernet

  2. Profibus

  3. HART

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

EtherCAT is designed for high-speed data transmission and synchronization in industrial automation systems.

Multiple choice

Which industrial networking protocol is commonly used for communication between sensors and actuators in a field network?

  1. HART

  2. Profibus

  3. Ethernet

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

HART (Highway Addressable Remote Transducer) is widely used for communication with field devices due to its ability to transmit both analog and digital signals.

Multiple choice

Which industrial networking technology is known for its token-passing mechanism and deterministic communication?

  1. Ethernet

  2. Modbus

  3. Profibus

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

Profibus utilizes a token-passing mechanism to ensure deterministic communication and reliable data transmission in industrial networks.

Multiple choice

Which industrial networking protocol is commonly used for communication between devices in a process automation network?

  1. Ethernet

  2. Modbus

  3. Profibus

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

Foundation Fieldbus is specifically designed for process automation applications, providing high-speed data transmission and advanced diagnostic capabilities.

Multiple choice

What is the purpose of a Remote Terminal Unit (RTU) in an industrial network?

  1. Data Acquisition

  2. Process Control

  3. Network Management

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

RTUs are used to collect data from sensors and transmit it to a central control system for monitoring and analysis.

Multiple choice

Which industrial networking technology is known for its ability to support both wired and wireless communication?

  1. Ethernet

  2. Modbus

  3. Profibus

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

WirelessHART is a wireless networking technology specifically designed for industrial applications, providing reliable communication in harsh environments.

Multiple choice

What is the role of a Network Management System (NMS) in an industrial network?

  1. Device Configuration

  2. Performance Monitoring

  3. Security Management

  4. Data Logging and Analysis
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

NMSs are responsible for monitoring network performance, detecting faults, and managing network resources to ensure optimal operation.

Multiple choice

Which industrial networking protocol is commonly used for communication between devices in a discrete manufacturing network?

  1. Ethernet

  2. Modbus

  3. Profibus

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

DeviceNet is a widely adopted protocol for discrete manufacturing applications, providing high-speed communication and support for a variety of devices.

Multiple choice

Which industrial networking technology is known for its ability to provide real-time data transmission and synchronization?

  1. Ethernet

  2. Modbus

  3. Profibus

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

SERCOS III is a high-performance networking technology designed for motion control applications, offering precise synchronization and fast data transmission.

Multiple choice

What is the maximum data rate that can be transmitted over a channel with a given bandwidth called?

  1. Shannon Capacity

  2. Nyquist Rate

  3. Baud Rate

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

Shannon Capacity is the maximum data rate that can be transmitted over a channel with a given bandwidth, as determined by Claude Shannon's mathematical theory of communication.

Multiple choice

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

  1. Star

  2. Bus

  3. Ring

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

Mesh is not a type of network topology, but rather a type of network architecture in which each node is connected to every other node.

Multiple choice

What is the process of dividing a message into smaller units for transmission called?

  1. Segmentation

  2. Fragmentation

  3. Packetization

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

Packetization is the process of dividing a message into smaller units for transmission, also known as packets.

Multiple choice

Which of the following is NOT a type of multiplexing?

  1. Frequency Division Multiplexing (FDM)

  2. Time Division Multiplexing (TDM)

  3. Wavelength Division Multiplexing (WDM)

  4. Code Division Multiplexing (CDM)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Code Division Multiplexing (CDM) is not a type of multiplexing, but rather a spread spectrum technique used in wireless communication.