Computer Networking Interview Questions and Answers

Question 1: What is a network?

1. A collection of interconnected devices that can communicate and share resources.
2. A single computer system.
3. A type of software program.
4. A specific type of cable.

Question 2: What is network topology?

Choose all that apply.

1. Bus Topology
2. Star Topology
3. Ring Topology
4. Mesh Topology
5. Tree Topology
6. Hybrid Topology

Question 3: What are the advantages of distributed processing?

Choose all that apply.

1. Enhanced Security
2. Supports Encapsulation
3. Distributed Database
4. Faster Problem Solving
5. Redundancy
6. Collaborative Processing

Question 4: What are the criteria to check network reliability?

Choose all that apply.

1. Downtime
2. Failure Frequency
3. Impact of Catastrophes
4. Number of users

Question 5: What factors affect network security?

Choose all that apply.

1. Unauthorized access
2. Viruses and malware
3. Number of users
4. Type of transmission medium

Question 6: What factors affect network reliability?

Choose all that apply.

1. Frequency of failure
2. Recovery time after a failure
3. Number of users
4. Type of transmission medium

Question 7: What factors affect network performance?

Choose all that apply.

1. Number of users
2. Type of transmission medium
3. Hardware
4. Software
5. Security Protocols

Question 8: What makes a network effective and efficient?

Choose all that apply.

1. High Performance
2. High Reliability
3. High Robustness
4. High Security
5. Low Cost

Question 9: What is bandwidth?

1. The amount of data transmitted per unit time.
2. The range of frequencies a network signal can use.
3. The number of devices on a network.
4. The physical distance between two devices.

Question 10: What is a node and a link?

1. A node is a device; a link is the connection between devices.
2. A node is a software program; a link is a data file.
3. A node is a network protocol; a link is a type of cable.
4. A node is a network topology; a link is a type of network.

Question 11: What is a gateway? How is it different from a router?

1. A gateway is a router.
2. A gateway connects dissimilar networks; a router connects similar networks.
3. A gateway is software; a router is hardware.
4. A gateway is used for security; a router is used for routing.

Question 12: What is DNS?

1. Domain Name Security
2. Domain Name Server
3. Domain Name System
4. Digital Network System

Question 13: What is a DNS forwarder?

1. A server that caches DNS records.
2. A server that forwards DNS queries to external servers.
3. A client that sends DNS queries to a server.
4. A protocol for secure DNS communication.

Question 14: What is NIC?

1. Network Interface Card
2. Network Internet Connector
3. Node Interface Controller
4. Network Input Channel

Question 15: What is the meaning of 10Base-T?

1. 10 Mbps, baseband, twisted-pair cable
2. 10 Gbps, baseband, coaxial cable
3. 10 Mbps, broadband, fiber optic cable
4. 10 Gbps, broadband, twisted-pair cable

Question 16: What is NOS in computer networking?

1. Network Operating System
2. Node Operating System
3. Network Output System
4. Node Output System

Question 17: What are the different types of networks?

Choose all that apply.

1. PAN
2. LAN
3. HAN
4. CAN
5. MAN
6. WAN
7. GAN

Question 18: What is POP3?

1. Post Office Protocol version 3
2. Point of Presence Protocol
3. Private Office Protocol
4. Public Online Protocol

Question 19: What do you understand by MAC address?

1. A software-assigned address
2. A unique hardware address
3. A network protocol
4. A type of network topology

Question 20: What is an IP address?

1. A physical address for a network device
2. A unique numerical address for a network device
3. A type of network cable
4. A network topology

Question 21: What is a private IP address?

1. An address used for communication on the public internet
2. An address used for communication on a private network
3. A type of network protocol
4. A type of network topology

Question 22: What is a public IP address?

1. An address used for internal network communication
2. An address used for external network communication
3. An address used for communication between servers
4. An address used for communication between clients

Question 23: What is APIPA?

1. Automatic Public IP Addressing
2. Automatic Private IP Addressing
3. Advanced Protocol for Internet Access
4. Address Protocol for Internet Access

Question 24: What is the full form of ADS?

1. Active Directory Service
2. Active Directory Structure
3. Advanced Data Structure
4. Advanced Directory Service

Question 25: What is RAID?

1. Redundant Array of Independent Devices
2. Redundant Array of Independent Disks
3. Random Access Independent Disk
4. Random Access Independent Drive

Question 26: What is anonymous FTP?

1. FTP that requires a password
2. FTP that does not require a password
3. A type of file encryption
4. A type of network topology

Question 27: What is a protocol?

1. A type of network device
2. A set of rules for network communication
3. A type of network topology
4. A type of network cable

Question 1: What are the main elements of a protocol?

1. Syntax, Semantics, Timing
2. Hardware, Software, Firmware
3. Routers, Switches, Hubs
4. IP Address, MAC Address, Port Number

Question 2: What is the Domain Name System?

1. A system for assigning IP addresses.
2. A protocol for translating domain names into IP addresses.
3. A type of network topology.
4. A type of network cable.

Question 3: What is a link?

1. A network device
2. The physical connection between two devices
3. A network protocol
4. A type of network topology

Question 4: How many layers are in the OSI reference model?

1. 4
2. 5
3. 6
4. 7

Question 5: What is the usage of the OSI physical layer?

1. Data link control
2. Routing
3. Data transmission over a physical medium
4. Application-level communication

Question 6: Explain the functionality of the OSI session layer?

1. Data encryption
2. Routing
3. Managing communication sessions
4. Application-level protocols

Question 7: What is the maximum length allowed for a UTP cable?

1. 50 meters
2. 100 meters
3. 200 meters
4. Unlimited

Question 8: What is RIP?

1. A network topology
2. A routing protocol
3. A type of network cable
4. A network security protocol

Question 9: What do you understand by TCP/IP?

1. A type of network topology
2. A set of network protocols
3. A type of network cable
4. A network security protocol

Question 10: What is netstat?

1. A network monitoring tool
2. A type of network cable
3. A network topology
4. A network security protocol

Question 11: What do you understand by the ping command?

1. A command to send an email
2. A command to check network connectivity
3. A command to open a web browser
4. A command to transfer files

Question 12: What is Sneakernet?

1. A type of network topology
2. A type of network cable
3. Physical transfer of data using removable media
4. A network protocol

Question 13: Explain the peer-to-peer process.

1. Client-server communication
2. Direct device-to-device communication at a given layer
3. Communication through a central server
4. Communication using a routing protocol

Question 14: What is a congested switch?

1. A switch that is physically damaged
2. A switch that is receiving packets faster than it can forward them
3. A switch that is not properly configured
4. A switch that is connected to too many devices

Question 15: What is multiplexing in networking?

1. A type of network cable
2. A network topology
3. Combining multiple signals onto a single channel
4. A network security protocol

Question 16: What are the advantages of address sharing?

1. Increased network speed
2. Improved network reliability
3. Enhanced network security
4. Simplified network configuration

Question 17: What is the RSA Algorithm?

1. A hashing algorithm
2. A symmetric encryption algorithm
3. An asymmetric encryption algorithm
4. A network routing protocol

Question 18: How many layers are in TCP/IP?

1. 4
2. 5
3. 7
4. 8

Question 19: What is the difference between the TCP/IP model and the OSI model?

Choose all that apply.

1. Number of Layers
2. Reliability
3. Architectural Approach
4. Session and Presentation Layers
5. Development Approach
6. Protocol Dependency

Question 20: What is the function of the transport layer in the OSI model?

Choose all that apply.

1. Segmentation and Reassembly
2. Flow Control
3. Error Detection and Correction
4. Connection Management
5. Routing

Question 21: What is the difference between a switch and a hub?

Choose all that apply.

1. OSI Layer
2. Data Forwarding Method
3. Intelligence
4. Efficiency

Question 1: What is the meaning of 10Base-T?

1. 10 Gbps, baseband, twisted-pair cable
2. 10 Mbps, baseband, twisted-pair cable
3. 10 Gbps, broadband, fiber-optic cable
4. 10 Mbps, broadband, coaxial cable

Question 2: What is NOS in computer networking?

1. Network Output System
2. Node Operating System
3. Network Operating System
4. None of the above

Question 3: What are the different types of networks?

Select all that apply.

1. PAN
2. LAN
3. HAN
4. CAN
5. MAN
6. WAN
7. GAN

Question 4: What is POP3?

1. Post Office Protocol version 3
2. Point of Presence Protocol
3. Private Office Protocol
4. Public Online Protocol

Question 5: What do you understand by MAC address?

1. A software-assigned address
2. A unique hardware address
3. A network protocol
4. A type of network topology

Question 6: What is an IP address?

1. A physical address for a network device
2. A unique numerical address for a network device
3. A type of network cable
4. A network topology

Question 7: What is a private IP address?

1. An address used for communication on the public internet
2. An address used for communication on a private network
3. A type of network protocol
4. A type of network topology

Question 8: What is a public IP address?

1. An address used for internal network communication
2. An address used for external network communication
3. An address used for communication between servers
4. An address used for communication between clients

Question 9: What is APIPA?

1. Automatic Public IP Addressing
2. Automatic Private IP Addressing
3. Advanced Protocol for Internet Access
4. Address Protocol for Internet Access

Question 10: What is the full form of ADS?

1. Active Directory Service
2. Active Directory Structure
3. Advanced Data Structure
4. Advanced Directory Service

Question 11: What is RAID?

1. Redundant Array of Independent Devices
2. Redundant Array of Independent Disks
3. Random Access Independent Disk
4. Random Access Independent Drive

Question 12: What is anonymous FTP?

1. FTP that requires a password
2. FTP that does not require a password
3. A type of file encryption
4. A type of network topology

Question 13: What is a protocol?

1. A type of network device
2. A set of rules for network communication
3. A type of network topology
4. A type of network cable

Question 14: What is the difference between a domain and a workgroup?

Choose all that apply.

1. Network Type
2. Maximum Number of Computers
3. Resource Management
4. Network Location
5. Configuration Changes

Question 15: What is the difference between the TCP/IP model and the OSI model?

Choose all that apply.

1. Number of Layers
2. Development Approach
3. Protocol Dependency
4. Architectural Approach
5. Session and Presentation Layers
6. Reliability

Question 16: What is the function of the transport layer in the OSI model?

Choose all that apply.

1. Segmentation and Reassembly
2. Flow Control
3. Error Detection and Correction
4. Connection Management
5. Routing

Question 17: What is the difference between a switch and a hub?

Choose all that apply.

1. OSI Layer
2. Data Forwarding Method
3. Intelligence
4. Efficiency