BAB 11

What are the primary goals of network security?

• Speed, cost, usability

• Integrity, availability, confidentiality

• Encryption, authentication, usability

• Complexity, efficiency, flexibility

Which of the following is NOT considered a security threat?

• Virus

• Firewall

• Trojan horse

• Spyware

What is the role of a firewall in network security?

• Prevents unauthorized access to a network

• Detects and removes malware

• Encrypts all data in a network

• Increases internet speed

What type of attack involves sending packets with a fake source address?

• DDoS attack

• IP Spoofing

• Phishing

• Man-in-the-Middle attack

Which protocol is used to encrypt data in a VPN?

• HTTPS

• IPSec

• FTP

• SMTP

Which of the following is a method for user authentication?

• Biometrics

• Phishing

• DDoS

• Malware

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

• An attack that infects a computer with a virus

• An attack that prevents users from accessing a system

• A method of encrypting data

• A technique used to create secure passwords

What is the main purpose of encryption in network security?

• Increase internet speed

• Prevent unauthorized access to data

• Make data transmission faster

• Improve network bandwidth

What does WPA stand for in wireless security?

• Wireless Protocol Access

• Wired Private Access

• Wi-Fi Protected Access

• Wireless Port Authentication

What type of encryption uses the same key for both encryption and decryption?

• Asymmetric encryption

• Public-key encryption

• Symmetric encryption

• Hashing