MCVSD Information Technology & Cybersecurity 2 — Questions and Answers
Question 1: What is the purpose of encryption in information security?
- To speed up data transmission
- To convert data into an unreadable format to prevent unauthorized access (Correct answer)
- To compress files for storage
- To scan for malware in files
Correct answer: To convert data into an unreadable format to prevent unauthorized access
Encryption converts data into a scrambled format that can only be read by authorized parties with the correct decryption key.
Question 2: In computer networking, what does a router do?
- Displays websites on your screen
- Directs data packets between networks and connects devices to the internet (Correct answer)
- Stores files on a local hard drive
- Provides electrical power to devices
Correct answer: Directs data packets between networks and connects devices to the internet
A router forwards data packets between computer networks and provides devices with access to the internet.
Question 3: What is two-factor authentication (2FA)?
- Using two different passwords for one account
- Requiring two forms of verification to confirm a user's identity (Correct answer)
- Sharing one account between two users
- Logging in from two different devices simultaneously
Correct answer: Requiring two forms of verification to confirm a user's identity
Two-factor authentication requires users to verify their identity using two separate methods, such as a password and a code sent to their phone.
Question 4: What does 'malware' refer to in cybersecurity?
- Faulty hardware components
- Any software intentionally designed to damage, disrupt, or gain unauthorized access to systems (Correct answer)
- Slow-performing software applications
- Outdated operating system versions
Correct answer: Any software intentionally designed to damage, disrupt, or gain unauthorized access to systems
Malware is any malicious software — including viruses, worms, and ransomware — designed to harm or exploit computers and networks.
Question 5: In IT, what does 'bandwidth' measure?
- The physical size of network cables
- The maximum data transfer rate of a network connection (Correct answer)
- The number of websites hosted on a server
- The storage capacity of a hard drive
Correct answer: The maximum data transfer rate of a network connection
Bandwidth measures the maximum rate at which data can be transmitted over a network connection, typically measured in megabits per second (Mbps).
Question 6: Which programming concept describes a set of instructions that can be reused throughout a program?
- Variable
- Loop
- Function (Correct answer)
- Condition
Correct answer: Function
A function is a reusable block of code that performs a specific task and can be called multiple times throughout a program.
MCVSD Information Technology & Cybersecurity 2
What is the purpose of encryption in information security?