Which of the following is the main function of a computer network?

• Store files locally

• Enable communication and resource sharing

• Prevent malware infections

• Encrypt all data by default

What does IP stand for?

• Internet Protocol

• Internal Program

• Information Packet

• Interconnected Processing

A MAC address operates at which OSI layer?

• Layer 1 – Physical

• Layer 2 – Data Link

• Layer 3 – Network

• Layer 4 – Transport

Which type of IP address is globally unique and routable on the internet?

• Private IP

• Public IP

• Loopback IP

• Reserved IP

Which device connects different networks together?

• Switch

• Hub

• Router

• Repeater

Which of the following is an example of a Private IP address?

• 172.31.25.6

• 8.8.8.8

• 156.214.33.12

• 1.1.1.1

Which is NOT a common topology in computer networks?

• Star

• Mesh

• Ring

• Stack

The primary purpose of firewalls is:

• Encrypt user data

• Block unauthorized traffic

• Replace antivirus software

• Manage DNS requests

Which of the following is a network security principle?

• High Availability

• Confidentiality, Integrity, Availability (CIA)

• Redundancy only

• Encryption only

Which protocol is used for secure browsing?

• HTTP

• HTTPS

• FTP

• Telnet