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 a common technique for reducing network latency?

  1. Using a content delivery network (CDN)

  2. Implementing traffic shaping

  3. Increasing the size of network buffers

  4. Upgrading to a higher-bandwidth network connection
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Using a CDN is a common technique for reducing network latency by caching content closer to users, reducing the distance that data needs to travel.

Multiple choice

Which of the following is a common metric used to measure network performance?

  1. Throughput

  2. Latency

  3. Packet loss

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

Throughput, latency, packet loss, and jitter are all common metrics used to measure network performance.

Multiple choice

Which of the following is a common technique for improving network reliability?

  1. Implementing redundancy

  2. Using load balancing

  3. Upgrading to a higher-quality network connection

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

Implementing redundancy, using load balancing, and upgrading to a higher-quality network connection are all common techniques for improving network reliability.

Multiple choice

What is the purpose of network segmentation?

  1. To improve network security

  2. To isolate different parts of a network

  3. To reduce network congestion

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

Network segmentation is used to improve network security, isolate different parts of a network, and reduce network congestion.

Multiple choice

What is the maximum data rate of a LoRaWAN connection?

  1. 0.3 kbps

  2. 3 kbps

  3. 30 kbps

  4. 300 kbps
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The maximum data rate of a LoRaWAN connection is typically around 0.3 kbps.

Multiple choice

What is the maximum data rate of a cellular IoT connection?

  1. 10 kbps

  2. 100 kbps

  3. 1 Mbps

  4. 10 Mbps
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The maximum data rate of a cellular IoT connection is typically around 100 kbps.

Multiple choice

What is the maximum data rate of a Bluetooth connection?

  1. 1 Mbps

  2. 10 Mbps

  3. 100 Mbps

  4. 1 Gbps
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The maximum data rate of a Bluetooth connection is typically around 1 Mbps.

Multiple choice

In the context of routing, what does the term 'hop' refer to?

  1. A network device

  2. A segment of a network

  3. A path between two networks

  4. A single step in a routing process
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A hop in routing refers to a single step or transition from one network device to another as data packets travel towards their destination.

Multiple choice

What is the purpose of a default gateway in a network?

  1. To provide internet access

  2. To connect different networks

  3. To assign IP addresses

  4. To manage network traffic
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A default gateway is a router that serves as the exit point for data packets leaving a network, allowing devices on the network to access the internet.

Multiple choice

What is the concept of network slicing isolation?

  1. Isolating network slices from each other to prevent interference

  2. Providing dedicated resources to each network slice

  3. Ensuring that network slices meet their SLAs

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

Network slicing isolation involves isolating network slices from each other to prevent interference, providing dedicated resources to each network slice, and ensuring that network slices meet their SLAs.

Multiple choice

How does network slicing impact the overall network architecture?

  1. It introduces a layered architecture with multiple network slices

  2. It requires a centralized controller to manage network slices

  3. It enables the coexistence of different network technologies

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

Network slicing introduces a layered architecture with multiple network slices, requires a centralized controller to manage network slices, and enables the coexistence of different network technologies.

Multiple choice

Which of the following is a common application of electro-optic devices in telecommunications?

  1. Optical Amplifiers

  2. Optical Switches

  3. Optical Multiplexers

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

Electro-optic devices are widely used in telecommunications for optical switching and routing of signals.

Multiple choice

What is the primary goal of hybrid connectivity?

  1. To connect multiple cloud platforms.

  2. To connect on-premises resources to the cloud.

  3. To connect multiple data centers.

  4. To connect multiple networks.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hybrid connectivity aims to seamlessly integrate on-premises resources with cloud-based services, allowing for secure and efficient data transfer and application integration.

Multiple choice

Which of the following is NOT a common type of hybrid connectivity solution?

  1. Virtual Private Network (VPN)

  2. Direct Connect

  3. Software-Defined WAN (SD-WAN)

  4. Multi-cloud Networking
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Multi-cloud Networking is not a specific type of hybrid connectivity solution. It refers to the practice of connecting multiple cloud platforms together, which can be achieved through various hybrid connectivity solutions.

Multiple choice

Which hybrid connectivity solution is best suited for applications requiring high bandwidth and low latency?

  1. VPN

  2. Direct Connect

  3. SD-WAN

  4. Multi-cloud Networking
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Direct Connect provides a dedicated physical connection between on-premises resources and the cloud, offering high bandwidth and low latency.