COMPUTER SECURITY

Question 1

VIRUS

Answer 1

Infects some executable files which causes that software to spread the virus.

Contain payload which performs other malicious actions.

Question 2

WORM

Answer 2

Self replicate and actively transmit itself over a network to infect other computers.

They do not need to attach themselves to an existing program.

They cause harm to networks by consuming bandwidth.

Question 3

SPYWARE

Answer 3

Collects small amounts of data about users without their knowledge.

Can slow computers by reporting internet surfing, habits, changing settings, installing additional software and redirecting web browsers.

Question 4

ADWARE

Answer 4

Automatically displays or download ads to computer.

Usually integrated with spyware and displays ads related from spying.

Question 5

PHISHING

Answer 5

Attempting to acquire sensitive information such as usernames, passwords, bank account info’s by masquerading as a trustworthy entity.

Usually carried out by emails or instant messages.

Question 6

SOCIAL ENGINEERING

Answer 6

Act of manipulating people into performing actions or divulging confidential information rather than by breaking in or using technical vulnerabilities.

Question 7

How to protect computer from attacks

Answer 7

Keep software up to date, use antivirus software.

Use strong passwords, unique one and never reuse them.

Install and maintain firewalls helps block unauthorized access to network.

Use encryption to make data unreadable to unauthorized parties.

Implement access controls to ensure only authorized users access your network.

Regularly back up data to recover it in case of cyberattacks or disaster.

Question 8

3 functions of antivirus software

Answer 8

Scanning and detection

Removal and quarantine

Real time protection