Question 1

Which device operates at Layer 3 of the OSI model?

Accepted Answer

Router

Answer

Switch

Answer

Bridge

Answer

Hub

Question 2

Which protocol is used for secure communication over the internet?

Accepted Answer

HTTPS

Answer

FTP

Answer

SMTP

Answer

HTTP

Question 3

What is the default subnet mask for a Class C IP address?

Accepted Answer

255.255.255.0

Answer

255.0.0.0

Answer

255.0.255.0

Answer

255.255.0.0

Question 4

What is the purpose of a VLAN (Virtual Local Area Network)?

Accepted Answer

To segment a network into multiple virtual networks

Answer

To provide security against external threats

Answer

To increase the speed of network communication

Answer

To connect devices on different physical networks

Question 5

What is the default gateway used for in a TCP/IP network?

Accepted Answer

To route traffic between different networks

Answer

To prevent unauthorized access

Answer

To provide wireless connectivity

Answer

To assign IP addresses to devices

Question 6

What is the purpose of a MAC address?

Accepted Answer

To uniquely identify network devices

Answer

To define the subnet mask

Answer

To assign IP addresses to devices

Answer

To encrypt network traffic

Question 7

What is the purpose of a subnet mask?

Accepted Answer

To determine the network and host portions of an IP address

Answer

To provide wireless connectivity

Answer

To route traffic between different networks

Answer

To uniquely identify network devices

Question 8

What is the purpose of DNS (Domain Name System)?

Accepted Answer

To translate domain names into IP addresses

Answer

To encrypt network traffic

Answer

To assign IP addresses to devices

Answer

To route traffic between different networks

Question 9

What is the purpose of NAT (Network Address Translation)?

Accepted Answer

To translate private IP addresses to public IP addresses

Answer

To assign IP addresses to devices

Answer

To provide wireless connectivity

Answer

To route traffic between different networks

Question 10

What is the purpose of ARP (Address Resolution Protocol)?

Accepted Answer

To map an IP address to a MAC address

Answer

To route traffic between different networks

Answer

To assign IP addresses to devices

Answer

To encrypt network traffic

Question 11

Which layer of the OSI model is responsible for routing data packets between multiple networks?

Accepted Answer

Layer 3 (Network Layer)

Answer

Layer 1 (Physical Layer)

Answer

Layer 2 (Data Link Layer)

Answer

Layer 4 (Transport Layer)

Question 12

Which protocol is used for secure remote administration of network devices?

Accepted Answer

SSH (Secure Shell)

Answer

FTP (File Transfer Protocol)

Answer

TELNET (Teletype Network)

Answer

HTTP (Hypertext Transfer Protocol)

Question 13

What is the purpose of a default gateway in computer networking?

Accepted Answer

To provide a path for packets to reach destinations outside the local network

Answer

To encrypt network traffic for enhanced security

Answer

To establish a direct connection between two network devices

Answer

To manage and allocate IP addresses in a network

Question 14

Which routing protocol utilizes the concept of autonomous systems (AS)?

Accepted Answer

Border Gateway Protocol (BGP)

Answer

Routing Information Protocol (RIP)

Answer

Open Shortest Path First (OSPF)

Answer

Enhanced Interior Gateway Routing Protocol (EIGRP)

Question 15

What is the purpose of subnetting in computer networking?

Accepted Answer

To divide a large network into smaller, more manageable subnetworks

Answer

To determine the physical topology of a network

Answer

To allocate IP addresses to network devices

Answer

To establish secure connections between network devices

Question 16

What is the purpose of a subnet mask in computer networking?

Accepted Answer

To determine the network and host portions of an IP address

Answer

To encrypt network traffic for enhanced security

Answer

To establish a direct connection between two network devices

Answer

To assign IP addresses to network devices

Question 17

Which device is used to connect multiple networks together?

Accepted Answer

Router

Answer

Switch

Answer

Hub

Answer

Firewall

Question 18

Which layer of the OSI model is responsible for reliable data delivery and error detection and correction?

Accepted Answer

Layer 4 (Transport Layer)

Answer

Layer 3 (Network Layer)

Answer

Layer 1 (Physical Layer)

Answer

Layer 2 (Data Link Layer)

Question 19

Which protocol is used to dynamically assign IP addresses to network devices?

Accepted Answer

Dynamic Host Configuration Protocol (DHCP)

Answer

Simple Mail Transfer Protocol (SMTP)

Answer

Internet Protocol (IP)

Answer

Domain Name System (DNS)

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