Computer Knowledge

Computer Networks

2,461 Questions

Computer networks involve the architecture, protocols, and security measures used for digital communication. This collection covers OSI model layers, IP addressing, data transmission, and cryptographic standards. These concepts are vital for the computer knowledge sections of banking and government exams.

OSI model layersNetwork protocolsIP subnet maskingData encryption standardsServer configurationsNetwork commands

Computer Networks Questions

Multiple choice

Which network performance metric measures the percentage of packets that are lost during transmission?

  1. Throughput

  2. Latency

  3. Packet Loss

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

Packet loss is a metric that measures the percentage of packets that are lost during transmission. It can be caused by various factors such as network congestion, faulty hardware, or interference.

Multiple choice

Which of the following is a common network troubleshooting tool?

  1. Ping

  2. Traceroute

  3. Wireshark

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

Ping, Traceroute, and Wireshark are all common network troubleshooting tools. Ping is used to test connectivity between two devices, Traceroute is used to trace the path of packets between two devices, and Wireshark is used to capture and analyze network traffic.

Multiple choice

Which of the following is a common network troubleshooting tool?

  1. Network scanner

  2. Packet sniffer

  3. Port scanner

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

Network scanner, packet sniffer, and port scanner are all common network troubleshooting tools.

Multiple choice

Which network address is used to identify a specific device on a home network?

  1. IP address

  2. MAC address

  3. DNS address

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

An IP address (Internet Protocol address) is used to identify a specific device on a home network. It is a unique numerical label assigned to each device connected to the network.

Multiple choice

What is the purpose of a DNS server in a home network?

  1. To connect to the internet

  2. To share files and printers

  3. To translate domain names into IP addresses

  4. To control network traffic
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A DNS (Domain Name System) server translates human-readable domain names (e.g., www.example.com) into machine-readable IP addresses, allowing devices to communicate with each other on the internet.

Multiple choice

Which device is responsible for assigning IP addresses to devices on a home network?

  1. Router

  2. Modem

  3. Switch

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

A router is responsible for assigning IP addresses to devices on a home network through a process called DHCP (Dynamic Host Configuration Protocol).

Multiple choice

Which network protocol is used to transfer files between devices on a home network?

  1. HTTP

  2. FTP

  3. SMTP

  4. POP3
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

FTP (File Transfer Protocol) is commonly used to transfer files between devices on a home network, allowing users to share files easily and efficiently.

Multiple choice

What is the purpose of a Gateway in an industrial network?

  1. Data Conversion

  2. Protocol Translation

  3. Network Segmentation

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

Gateways are used to connect networks with different protocols, allowing devices to communicate seamlessly across different systems.

Multiple choice

Which of the following is NOT a type of error control technique?

  1. Forward Error Correction (FEC)

  2. Automatic Repeat Request (ARQ)

  3. Checksum

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

Checksum is not a type of error control technique, but rather a method for detecting errors in data transmission.

Multiple choice

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

  1. Transmission Control Protocol (TCP)

  2. Internet Protocol (IP)

  3. Hypertext Transfer Protocol (HTTP)

  4. File Transfer Protocol (FTP)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hypertext Transfer Protocol (HTTP) is not a type of network protocol, but rather an application protocol used for transferring web pages and files over the World Wide Web.

Multiple choice

Which protocol is commonly used for communication between data center devices?

  1. TCP/IP

  2. UDP

  3. Ethernet

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

TCP/IP is the most commonly used protocol for communication between data center devices because it is a well-established and widely supported protocol.

Multiple choice

Which protocol is commonly used for managing data center devices?

  1. SNMP

  2. Telnet

  3. SSH

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

All of the above protocols are commonly used for managing data center devices.

Multiple choice

Which networking protocol is commonly used for real-time multiplayer games?

  1. TCP

  2. UDP

  3. HTTP

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

UDP (User Datagram Protocol) is often preferred for real-time multiplayer games due to its low latency and ability to handle unreliable data transmission, making it suitable for fast-paced and action-packed gameplay.

Multiple choice

What is the term used to describe the process of assigning a unique address to each device connected to a network?

  1. Encryption

  2. Routing

  3. IP Addressing

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

IP addressing involves assigning a unique Internet Protocol (IP) address to each device connected to a network, allowing them to communicate with each other and access resources on the network.

Multiple choice

Which protocol is commonly used for network management?

  1. HTTP

  2. FTP

  3. SNMP

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

Simple Network Management Protocol (SNMP) is widely used for network management. It provides a standardized framework for monitoring and managing network devices, enabling administrators to collect information, configure devices, and detect and resolve issues.