Computer Knowledge

Computer Networks

2,614 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

What is the purpose of using standard protocols in DfI?

  1. To ensure reliable communication between components

  2. To facilitate data exchange between systems

  3. To simplify system integration

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

Standard protocols provide a common language and set of rules for communication, data exchange, and system integration, ensuring interoperability and reducing the complexity of integration efforts.

Multiple choice

Which of the following is a common data access protocol used in astroinformatics?

  1. HTTP

  2. FTP

  3. Web Services

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

HTTP, FTP, and Web Services are commonly used data access protocols in astroinformatics for retrieving data from remote sources.

Multiple choice

Which metric is commonly used to measure the overall responsiveness of a network?

  1. Throughput

  2. Latency

  3. Packet Loss

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

Latency, also known as delay, measures the time it takes for a packet to travel from one point to another in a network. It is a critical factor in determining the responsiveness and user experience of network applications.

Multiple choice

Which metric measures the percentage of packets that are successfully transmitted without errors?

  1. Throughput

  2. Packet Delivery Ratio

  3. Network Utilization

  4. Round-Trip Time (RTT)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Packet Delivery Ratio (PDR) is a metric that indicates the proportion of packets that are successfully transmitted from a source to a destination without being lost or corrupted during transmission.

Multiple choice

Which protocol is commonly used for monitoring network performance and troubleshooting network issues?

  1. HTTP

  2. FTP

  3. SNMP

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

Simple Network Management Protocol (SNMP) is a widely used protocol for monitoring network devices and collecting performance metrics. It allows network administrators to gather information about device status, performance, and configuration, enabling them to identify and resolve network issues.

Multiple choice

Which metric measures the variation in the delay of packets transmitted over a network?

  1. Throughput

  2. Latency

  3. Packet Loss

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

Jitter is a metric that measures the variation in the delay of packets transmitted over a network. It is caused by fluctuations in network traffic and can impact the quality of real-time applications such as voice and video calls.

Multiple choice

Which network performance metric measures the time it takes for a packet to travel from a source to a destination and back?

  1. Throughput

  2. Latency

  3. Packet Loss

  4. Round-Trip Time (RTT)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Round-Trip Time (RTT) is a metric that measures the time it takes for a packet to travel from a source to a destination and back. It is commonly used to assess network latency and responsiveness.

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.