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

What is the role of a DNS resolver?

  1. To translate domain names into IP addresses

  2. To store DNS records

  3. To forward DNS queries to DNS servers

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

A DNS resolver is responsible for forwarding DNS queries to DNS servers.

Multiple choice

What is the difference between a recursive DNS query and an iterative DNS query?

  1. A recursive DNS query is sent to a single DNS server, while an iterative DNS query is sent to multiple DNS servers.

  2. A recursive DNS query is sent to the root DNS servers, while an iterative DNS query is sent to the authoritative DNS servers.

  3. A recursive DNS query is used to resolve a domain name into an IP address, while an iterative DNS query is used to find the authoritative DNS servers for a domain.

  4. A recursive DNS query is used to check the validity of a DNS record, while an iterative DNS query is used to update a DNS record.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A recursive DNS query is sent to a single DNS server, which is responsible for resolving the query or forwarding it to other DNS servers. An iterative DNS query is sent to multiple DNS servers, each of which is responsible for resolving a portion of the query.

Multiple choice

Which of the following is a common type of network monitoring tool?

  1. Ping

  2. Traceroute

  3. SNMP

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

Common types of network monitoring tools include Ping, Traceroute, and SNMP.

Multiple choice

Which of the following is a common type of firewall?

  1. Stateful firewall

  2. Stateless firewall

  3. Next-generation firewall

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

Common types of firewalls include stateful firewalls, stateless firewalls, and next-generation firewalls.

Multiple choice

Which of the following is a common type of VPN?

  1. Site-to-site VPN

  2. Remote access VPN

  3. IPsec VPN

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

Common types of VPNs include site-to-site VPNs, remote access VPNs, and IPsec VPNs.

Multiple choice

Which of the following is a common tool for network performance testing?

  1. Ping

  2. Traceroute

  3. iPerf

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

Ping, Traceroute, and iPerf are all common tools for network performance testing.

Multiple choice

Which routing protocol is used to exchange routing information between autonomous systems?

  1. RIP

  2. OSPF

  3. BGP

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

BGP (Border Gateway Protocol) is used to exchange routing information between autonomous systems, enabling the internet to function as a single, interconnected network.

Multiple choice

What is the primary function of a routing table in a network?

  1. To store IP addresses

  2. To manage network traffic

  3. To determine the best path for data packets

  4. To assign IP addresses to devices
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The routing table contains information about the available paths to different networks and helps determine the best route for data packets to reach their destination.

Multiple choice

Which routing algorithm is known for its simplicity and is commonly used in small networks?

  1. RIP

  2. OSPF

  3. BGP

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

RIP (Routing Information Protocol) is a simple and widely used routing algorithm that is commonly implemented in small networks due to its ease of configuration and maintenance.

Multiple choice

Which routing protocol is designed specifically for large and complex networks?

  1. RIP

  2. OSPF

  3. BGP

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

OSPF (Open Shortest Path First) is a routing protocol designed for large and complex networks, providing efficient routing and scalability.

Multiple choice

What is the primary purpose of subnet masking in IP addressing?

  1. To hide IP addresses

  2. To improve network performance

  3. To divide a network into smaller segments

  4. To assign IP addresses to devices
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Subnet masking is used to divide a network into smaller segments, allowing for more efficient IP address management and improved network performance.

Multiple choice

Which routing protocol is commonly used in enterprise networks and supports multiple routing metrics?

  1. RIP

  2. OSPF

  3. BGP

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

EIGRP (Enhanced Interior Gateway Routing Protocol) is commonly used in enterprise networks and supports multiple routing metrics, providing flexibility and optimization in routing decisions.

Multiple choice

What is the role of a routing metric in determining the best path for data packets?

  1. To measure the distance between networks

  2. To calculate the cost of a path

  3. To determine the speed of a path

  4. To assign IP addresses
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A routing metric is used to calculate the cost of a path, considering factors such as distance, delay, and bandwidth, to determine the best route for data packets.

Multiple choice

Which routing protocol is known for its fast convergence time and is commonly used in mission-critical networks?

  1. RIP

  2. OSPF

  3. BGP

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

EIGRP (Enhanced Interior Gateway Routing Protocol) is known for its fast convergence time, making it suitable for mission-critical networks where rapid adaptation to network changes is essential.

Multiple choice

What is the role of a routing policy in network routing?

  1. To determine the best path for data packets

  2. To manage network traffic

  3. To assign IP addresses

  4. To control how data packets are forwarded
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A routing policy defines the rules and criteria used to control how data packets are forwarded in a network, influencing the path selection and traffic management.