Computer Networks MCQs – Page 5

#1. What is the purpose of an IP address in a computer network?

To identify a device on the network

To determine the color scheme of a website

To play multimedia files

To manage printer settings

To send emails

#2. What is the function of a repeater in a network?

It amplifies and regenerates data signals to extend the range of a network

It encrypts data for secure transmission

It filters incoming emails

It converts analog signals to digital

It manages printer settings

#3. What is the purpose of ICMP (Internet Control Message Protocol) in a computer network?

It is used for error reporting and diagnostics in IP networks

It encrypts data for secure transmission

It filters incoming emails

It converts analog signals to digital

It manages printer settings

#4. Which protocol is used for secure remote access to a network using a Virtual Private Network (VPN)?

OpenVPN

PPTP

L2TP/IPsec

SSL/TLS VPN

IPsec VPN

#5. Which wireless encryption protocol is considered the most secure as of 2022?

WPA3

WEP

WPA2

WPA

None of the above

#6. What is the purpose of NAT (Network Address Translation) in a router?

It allows multiple devices on a local network to share a single public IP address

It encrypts data for secure transmission

It filters incoming emails

It converts analog signals to digital

It manages printer settings

#7. What is the maximum transmission speed of a standard Ethernet connection in bits per second?

1000 Mbps (1 Gigabit per second)

100 Mbps (100 Megabits per second)

10 Mbps (10 Megabits per second)

1 Gbps (1 Gigabit per second)

10 Gbps (10 Gigabits per second)

#8. In a network, what does the term “bandwidth” refer to?

The maximum data transfer rate of a network connection

The physical width of a network cable

The distance between devices on a network

The number of devices connected to a network

The speed of data transmission on a network

#9. Which protocol is responsible for assigning IP addresses dynamically to devices on a network?

DHCP (Dynamic Host Configuration Protocol)

DNS

SMTP

FTP

HTTP

#10. What is the primary purpose of a router in a computer network?

To forward data packets between different networks

To encrypt data for secure transmission

To filter incoming emails

To convert analog signals to digital

To manage printer settings

#11. What is the main function of a DNS cache in a computer system?

It stores recently accessed DNS records to speed up future lookups

It encrypts data for secure transmission

It filters incoming emails

It converts analog signals to digital

It manages printer settings

#12. Which type of cable is commonly used for Ethernet networking and can support high-speed data transmission?

Cat 5e

Coaxial

Fiber optic

USB

HDMI

#13. What is the purpose of VLAN (Virtual LAN) in networking?

It allows logical segmentation of a network, even if devices are physically located on the same network switch

It encrypts data for secure transmission

It filters incoming emails

It converts analog signals to digital

It manages printer settings

#14. Which protocol is used for transferring files over a secure connection (encrypted) on a network?

SFTP (SSH File Transfer Protocol)

FTPS (File Transfer Protocol Secure)

TFTP (Trivial File Transfer Protocol)

HTTP

SMTP

#15. What is the purpose of a proxy server in a network?

It acts as an intermediary between clients and servers, forwarding requests and responses

It encrypts data for secure transmission

It filters incoming emails

It converts analog signals to digital

It manages printer settings

#16. What is the purpose of a default gateway in IP networking?

It is a device that connects a local network to other networks

It encrypts data for secure transmission

It filters incoming emails

It converts analog signals to digital

It manages printer settings

#17. Which network device is used to connect multiple networks together and make decisions about where to send data packets?

Router

Switch

Hub

Modem

Firewall

#18. What is the purpose of an IP address in a computer network?

To identify a device on the network

To determine the color scheme of a website

To play multimedia files

To manage printer settings

To send emails

#19. What is the function of a repeater in a network?

It amplifies and regenerates data signals to extend the range of a network

It encrypts data for secure transmission

It filters incoming emails

It converts analog signals to digital

It manages printer settings

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