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 the following is NOT a common network maintenance task?

  1. Updating firmware and software

  2. Monitoring network traffic and performance

  3. Replacing faulty network components

  4. Installing new network equipment
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Installing new network equipment is typically not considered a maintenance task, as it involves adding new components to the network rather than maintaining existing ones.

Multiple choice

What is the recommended frequency for performing network maintenance tasks?

  1. Daily

  2. Weekly

  3. Monthly

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

The frequency of network maintenance tasks can vary depending on the size and complexity of the network, as well as the specific maintenance requirements of the network components. It is generally recommended to perform maintenance tasks as needed, based on monitoring results and identified issues.

Multiple choice

Which of the following is NOT a common network maintenance best practice?

  1. Documenting network changes

  2. Backing up network configurations

  3. Using outdated software and firmware

  4. Performing regular security audits
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Using outdated software and firmware is not a recommended network maintenance practice, as it can introduce security vulnerabilities and compatibility issues. Keeping software and firmware up to date is essential for maintaining network security and performance.

Multiple choice

Which of the following is a common network optimization technique?

  1. Load balancing

  2. Traffic shaping

  3. QoS (Quality of Service)

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

Load balancing, traffic shaping, and QoS are all common network optimization techniques used to improve network performance and efficiency by distributing traffic load, prioritizing network traffic, and ensuring that critical applications receive the necessary bandwidth and resources.

Multiple choice

Which of the following is NOT a common type of network documentation?

  1. Network diagrams

  2. Configuration files

  3. User manuals

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

Financial statements are not typically considered a type of network documentation, as they are not related to the technical aspects of network maintenance and management.

Multiple choice

Which of the following is not a component of NETRA?

  1. A network of ground-based sensors

  2. A space-based sensor platform

  3. A data processing and analysis center

  4. A command and control center
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

NETRA does not have a space-based sensor platform. Instead, it relies on a network of ground-based sensors to track and monitor objects in space.

Multiple choice

Which of the following is a network implementation methodology?

  1. Top-down approach

  2. Bottom-up approach

  3. Hybrid approach

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

All of the above are network implementation methodologies.

Multiple choice

Which of the following is a network implementation tool?

  1. Network management software

  2. Network monitoring software

  3. Network simulation software

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

All of the above are network implementation tools.

Multiple choice

What is the purpose of the network implementation phase?

  1. To install the network equipment

  2. To configure the network equipment

  3. To test the network

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

All of the above are purposes of the network implementation phase.

Multiple choice

What are some of the tools that can be used for network implementation?

  1. Network management software

  2. Network monitoring software

  3. Network simulation software

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

All of the above are tools that can be used for network implementation.

Multiple choice

Which communication technology is commonly used for establishing a reliable connection between the operator and the remote robot?

  1. Bluetooth

  2. Wi-Fi

  3. Cellular Network

  4. Fiber Optic Cable
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fiber Optic Cables offer high bandwidth and low latency, making them suitable for transmitting large amounts of data and control signals required for teleoperation systems.

Multiple choice

What is the primary frequency range used by Wi-Fi networks?

  1. 2.4 GHz

  2. 5 GHz

  3. 10 GHz

  4. 15 GHz
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

Wi-Fi networks primarily operate in the 2.4 GHz and 5 GHz frequency ranges. The 2.4 GHz band is commonly used for home and office networks, while the 5 GHz band is often used for high-speed applications and to reduce interference.

Multiple choice

Which of the following is a short-range wireless technology commonly used for connecting devices such as smartphones and laptops?

  1. Bluetooth

  2. Wi-Fi

  3. LTE

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

Bluetooth is a short-range wireless technology that allows devices to communicate over short distances. It is commonly used for connecting devices such as smartphones, laptops, and headphones.

Multiple choice

Which of the following is a mobile device connectivity standard that enables devices to communicate with each other by touching or bringing them close together?

  1. NFC

  2. Bluetooth

  3. Wi-Fi

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

NFC (Near Field Communication) is a mobile device connectivity standard that allows devices to communicate with each other by touching or bringing them close together. It is commonly used for contactless payments, data exchange, and device pairing.

Multiple choice

What is the maximum theoretical speed of a Wi-Fi network operating in the 802.11ac standard?

  1. 1 Gbps

  2. 2 Gbps

  3. 3 Gbps

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

The maximum theoretical speed of a Wi-Fi network operating in the 802.11ac standard is 3 Gbps. This speed is significantly faster than previous Wi-Fi standards and allows for high-speed data transfers and streaming.