Cyber Security Cyber Security 3

Question 1

What is the main goal of a denial-of-service (DoS) attack?

Accepted Answer

To make a service or resource unavailable to legitimate users

Answer

To steal confidential files

Answer

To gain administrator privileges

Answer

To alter database records

Question 2

Which encryption type uses the same key for both encryption and decryption?

Accepted Answer

Symmetric encryption

Answer

Asymmetric encryption

Answer

Hashing

Answer

Public-key encryption

Question 3

What is a zero-day vulnerability?

Accepted Answer

A flaw unknown to the vendor with no available patch

Answer

A vulnerability that is decades old

Answer

A bug that only appears at midnight

Answer

A patched vulnerability

Question 4

Which practice helps protect against password-based attacks the most?

Accepted Answer

Using unique, complex passwords with a password manager

Answer

Reusing one strong password everywhere

Answer

Writing passwords on a sticky note

Answer

Using your birthday as a password

Question 5

What does the acronym DDoS stand for?

Accepted Answer

Distributed Denial of Service

Answer

Direct Data on Server

Answer

Dual Domain Operating System

Answer

Dynamic Denial of Security

Question 6

What is the purpose of hashing a password before storing it?

Accepted Answer

To store a non-reversible representation so plaintext is never saved

Answer

To compress the password for storage

Answer

To make the password easier to remember

Answer

To encrypt the password reversibly

Question 7

A network of compromised computers controlled remotely by an attacker is called a:

Accepted Answer

Botnet

Answer

Honeypot

Answer

Subnet

Answer

Sandbox