DL Cybersecurity and Online Safety 3

Question 1

What is a 'zero-day vulnerability'?

Accepted Answer

A security flaw unknown to the vendor that has no available patch

Answer

A zero-day vulnerability is a software flaw that is unknown to those responsible for patching it, leaving systems exposed with zero days to fix it before it can be exploited.

Question 2

What is the purpose of a firewall?

Accepted Answer

To monitor and control incoming and outgoing network traffic based on security rules

Answer

A firewall acts as a barrier between trusted internal networks and untrusted external networks, filtering traffic based on predetermined security rules.

Question 3

Which type of malware encrypts a victim's files and demands payment for the decryption key?

Accepted Answer

Ransomware

Answer

Ransomware encrypts a victim's files and demands a ransom—typically in cryptocurrency—in exchange for the decryption key.

Question 4

What does 'least privilege' mean in cybersecurity?

Accepted Answer

Giving users the minimum access rights needed to perform their job

Answer

The principle of least privilege limits user access rights to only what is necessary for their role, reducing the attack surface if an account is compromised.

Question 5

You receive an urgent email from your 'bank' asking you to verify your account by clicking a link. What should you do?

Accepted Answer

Go directly to the bank's official website by typing the URL yourself

Answer

Navigating directly to the bank's official website avoids clicking potentially malicious links in phishing emails.

(DL) Digital Literacy Certification Practice Test

(DL) Digital Literacy Certification Practice Test

DL Cybersecurity and Online Safety 3