Network Security Concepts and Threats

The video explores network security, highlighting threats like hackers, malware, DOS attacks, and social engineering. It discusses preventive measures such as firewalls, encryption, and anti-malware software, emphasizing the human factor as a critical vulnerability. The video aims to educate viewers on identifying threats and implementing security measures.

What is the primary goal of network security?

• To reduce the number of users on a network

• To increase network speed

• To prevent unauthorized access and minimize damage

• To allow unrestricted access to all users

Which type of hacker is known for ethical hacking?

• Black hat hacker

• White hat hacker

• Gray hat hacker

• Red hat hacker

What is a common characteristic of a computer virus?

• It cannot replicate itself

• It is always visible to the user

• It only affects hardware

• It can copy itself and spread

How does spyware typically operate?

• By deleting files

• By crashing the computer

• By covertly collecting user data

• By speeding up network connections

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

• To overload a server with traffic

• To steal data

• To encrypt files

• To improve server performance

What is SQL injection used for?

• To enhance database security

• To exploit vulnerabilities in database applications

• To backup database data

• To increase database speed

What is phishing designed to do?

• To encrypt user data

• To speed up internet browsing

• To trick users into revealing personal information

• To improve email security

How does pharming differ from phishing?

• Pharming is a legal security measure

• Pharming uses a lure, phishing does not

• Pharming is a type of malware

• Pharming redirects users to fraudulent sites without their knowledge

What is the role of a firewall in network security?

• To increase network speed

• To allow all types of traffic

• To store user data

• To block unauthorized traffic

Why is encryption important in network security?

• It prevents hacking entirely

• It reduces the need for passwords

• It makes stolen data difficult to read

• It speeds up data transmission