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 challenge associated with using higher frequency spectrum for 5G?

  1. Higher cost

  2. Shorter range

  3. More interference

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

Using higher frequency spectrum for 5G comes with a number of challenges, including higher cost, shorter range, and more interference. These challenges need to be addressed in order to make 5G a viable technology for widespread use.

Multiple choice

How can the challenges associated with using higher frequency spectrum for 5G be addressed?

  1. Using beamforming and MIMO technologies

  2. Deploying more small cells

  3. Using higher power transmitters

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

The challenges associated with using higher frequency spectrum for 5G can be addressed by using a combination of technologies, including beamforming and MIMO technologies, deploying more small cells, and using higher power transmitters.

Multiple choice

What is the role of small cells in 5G networks?

  1. They provide additional coverage and capacity.

  2. They help to reduce interference.

  3. They make it possible to use higher frequency spectrum.

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

Small cells play an important role in 5G networks by providing additional coverage and capacity, helping to reduce interference, and making it possible to use higher frequency spectrum.

Multiple choice

How does 5G's use of millimeter wave spectrum differ from its use of other frequency bands?

  1. Millimeter wave spectrum is used for short-range, high-speed communications.

  2. Millimeter wave spectrum is used for long-range, low-speed communications.

  3. Millimeter wave spectrum is used for both short-range and long-range communications.

  4. Millimeter wave spectrum is not used for 5G communications.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Millimeter wave spectrum is used for short-range, high-speed communications in 5G networks. This is because millimeter wave spectrum has a very high frequency, which allows for very fast data speeds. However, millimeter wave spectrum also has a very short range, so it is not suitable for long-range communications.

Multiple choice

What is the role of beamforming in 5G networks?

  1. It focuses the signal in a specific direction.

  2. It reduces interference.

  3. It increases the range of the signal.

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

Beamforming is a technology that focuses the signal in a specific direction, reduces interference, and increases the range of the signal. This makes it an important technology for 5G networks, where high data rates and low latency are required.

Multiple choice

How does 5G's use of MIMO technology differ from its use in previous generations of wireless technology?

  1. 5G uses more MIMO antennas than previous generations.

  2. 5G uses MIMO antennas in both the uplink and downlink.

  3. 5G uses MIMO antennas to achieve higher data rates.

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

5G uses more MIMO antennas than previous generations of wireless technology, uses MIMO antennas in both the uplink and downlink, and uses MIMO antennas to achieve higher data rates. This makes MIMO technology an important part of 5G networks.

Multiple choice

What is the role of network slicing in 5G networks?

  1. It allows for the creation of multiple virtual networks on a single physical network.

  2. It improves the performance of applications by isolating them from each other.

  3. It makes it easier to manage and secure 5G networks.

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

Network slicing is a technology that allows for the creation of multiple virtual networks on a single physical network. This makes it possible to improve the performance of applications by isolating them from each other, and it also makes it easier to manage and secure 5G networks.

Multiple choice

How does 5G's use of edge computing differ from its use in previous generations of wireless technology?

  1. 5G uses edge computing to reduce latency.

  2. 5G uses edge computing to improve security.

  3. 5G uses edge computing to increase capacity.

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

5G uses edge computing to reduce latency, improve security, and increase capacity. This makes edge computing an important part of 5G networks.

Multiple choice

What is the role of artificial intelligence (AI) in 5G networks?

  1. It helps to optimize network performance.

  2. It helps to detect and mitigate security threats.

  3. It helps to improve the user experience.

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

AI plays an important role in 5G networks by helping to optimize network performance, detect and mitigate security threats, and improve the user experience.

Multiple choice

How does 5G's use of software-defined networking (SDN) differ from its use in previous generations of wireless technology?

  1. 5G uses SDN to make it easier to manage and configure the network.

  2. 5G uses SDN to improve the performance of the network.

  3. 5G uses SDN to make it easier to deploy new services.

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

5G uses SDN to make it easier to manage and configure the network, improve the performance of the network, and make it easier to deploy new services. This makes SDN an important part of 5G networks.

Multiple choice

What is the role of virtualization in 5G networks?

  1. It allows for the creation of multiple virtual networks on a single physical network.

  2. It improves the performance of applications by isolating them from each other.

  3. It makes it easier to manage and secure 5G networks.

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

Virtualization plays an important role in 5G networks by allowing for the creation of multiple virtual networks on a single physical network, improving the performance of applications by isolating them from each other, and making it easier to manage and secure 5G networks.

Multiple choice

Which type of engineer is responsible for designing and developing telecommunications systems?

  1. Telecommunications engineer

  2. Electrical engineer

  3. Computer engineer

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

Telecommunications engineers specialize in the design and development of telecommunications systems, including wired and wireless networks, switching systems, and transmission systems.

Multiple choice

Which of the following is a short-range wireless connectivity technology primarily used for connecting devices within a personal area network (PAN)?

  1. Bluetooth

  2. Wi-Fi

  3. Cellular

  4. Zigbee
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, typically within a range of 10 meters.

Multiple choice

What is the term used to describe the ability of IoT devices to connect to multiple networks seamlessly?

  1. Multi-homing

  2. Roaming

  3. Network switching

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

Multi-homing in IoT refers to the ability of devices to connect to multiple networks simultaneously or switch between networks based on availability and performance.

Multiple choice

What is the term used to describe the technology that allows multiple video streams to be transmitted simultaneously over a single cable or wireless connection?

  1. Multiplexing

  2. Modulation

  3. Demodulation

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

Multiplexing is the technology that allows multiple video streams to be transmitted simultaneously over a single cable or wireless connection by combining them into a single signal.