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 network device is used to connect multiple networks securely over a public network?

  1. Switch

  2. Hub

  3. VPN Gateway

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

A VPN Gateway is a network device used to connect multiple networks securely over a public network. It creates a virtual private network (VPN), allowing users to securely access private networks over the internet.

Multiple choice

Which of the following is NOT a common type of industrial communication protocol?

  1. Modbus

  2. Profibus

  3. DeviceNet

  4. Ethernet

  5. CAN bus
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ethernet is a general-purpose communication protocol that is not specifically designed for industrial automation, although it can be used in some applications.

Multiple choice

In SDN architecture, what is the role of the control plane?

  1. To manage and configure network devices

  2. To forward data packets between network segments

  3. To provide a unified view of the network

  4. To enforce network policies and security measures
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The control plane in SDN is responsible for managing and configuring network devices, including switches, routers, and firewalls.

Multiple choice

What is the concept of network programmability in the context of SDN?

  1. The ability to modify network behavior through software

  2. The ability to automate network management tasks

  3. The ability to visualize network traffic patterns

  4. The ability to troubleshoot network issues remotely
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Network programmability in SDN refers to the ability to modify network behavior and functionality through software, enabling administrators to adapt the network to changing requirements and applications.

Multiple choice

Which of the following is NOT a common use case for SDN?

  1. Data center networking

  2. Wide area network (WAN) optimization

  3. Software-defined WAN (SD-WAN)

  4. Internet service provider (ISP) network management
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

While SDN is widely used in data center networking, WAN optimization, and SD-WAN, it is not commonly used for ISP network management, which typically involves complex routing protocols and legacy infrastructure.

Multiple choice

Which of the following is NOT a key component of an SDN architecture?

  1. Control plane

  2. Data plane

  3. Hypervisor

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

Hypervisor is not a key component of an SDN architecture. It is a software layer used for virtualization, which is not directly related to SDN.

Multiple choice

Which of the following is a common application of SDN in data center networks?

  1. Virtual machine migration

  2. Load balancing and traffic engineering

  3. Network security and access control

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

SDN is widely used in data center networks for virtual machine migration, load balancing and traffic engineering, and network security and access control.

Multiple choice

What is the concept of network virtualization in the context of SDN?

  1. The ability to create multiple virtual networks over a single physical network

  2. The ability to automate network management tasks

  3. The ability to visualize network traffic patterns

  4. The ability to troubleshoot network issues remotely
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Network virtualization in SDN refers to the ability to create multiple virtual networks, each with its own set of policies and configurations, over a single physical network infrastructure.

Multiple choice

Which type of communication system is commonly used in Hydropower Substations for transmitting data and control signals?

  1. Fiber Optic Communication

  2. Power Line Carrier Communication

  3. Microwave Communication

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

Fiber Optic Communication is widely used in Hydropower Substations due to its high bandwidth, low latency, and immunity to electromagnetic interference.

Multiple choice

What is the term used to describe the ability of ubiquitous computing systems to communicate and share information with each other?

  1. Interoperability

  2. Connectivity

  3. Networking

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

Interoperability is a key requirement for ubiquitous computing systems to communicate and share information seamlessly, enabling them to work together effectively.

Multiple choice

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

  1. Hub-and-spoke network

  2. Linear network

  3. Radial network

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

Cellular networks are not typically used in logistics, as they are more commonly associated with telecommunications.

Multiple choice

Which of the following is an example of a network?

  1. Trade unions

  2. Business associations

  3. Religious groups

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

Networks are groups of people who are connected to each other through shared interests or goals. Business associations are the most common example of networks.

Multiple choice

What is the term used for the process of connecting physical objects to the Internet?

  1. Digitization

  2. IoTization

  3. Digital transformation

  4. Cyber-physical integration
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

IoTization refers to the process of connecting physical objects to the Internet, enabling them to communicate and exchange data with other devices and systems.

Multiple choice

How does space weather affect satellites?

  1. It can disrupt satellite communications

  2. It can cause satellites to malfunction

  3. It can cause satellites to crash

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

Space weather can disrupt satellite communications, cause satellites to malfunction, and even cause satellites to crash.

Multiple choice

Which AI-powered technology enables autonomous vehicles to communicate with each other and with roadside infrastructure?

  1. Vehicle-to-Vehicle (V2V) Communication

  2. Vehicle-to-Infrastructure (V2I) Communication

  3. Cellular Connectivity

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

AI facilitates vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, and cellular connectivity, enabling autonomous vehicles to exchange information and coordinate actions, enhancing safety and efficiency.