Network Security

What is the main goal of a firewall in network security?

• Encrypting data

• Preventing brute-force attacks

• Controlling network traffic based on rules

• Detecting viruses

Which of the following is a passive attack?

• Denial of Service

• SQL Injection

• Eavesdropping

• Ransomware

What is the key difference between IDS and IPS?

• IDS encrypts data; IPS does not

• IPS can take preventive actions; IDS only detects

• IDS blocks threats; IPS only logs them

• IDS works offline; IPS works online

What kind of attack involves an attacker secretly relaying or altering communications between two parties?

• Brute Force Attack

• Man-in-the-Middle

• Phishing

• Replay Attack

What does VPN primarily provide?

• Virus Protection

• Secure Browsing History

• Encrypted Network Communication

• Backup Services

Which of the following is a feature of Zero Trust Security?

• Trust all internal traffic

• Only verify unknown users

• Assume all entities are untrusted

• Disable user authentication

What is the primary function of a firewall?

• Increase bandwidth

• Detect viruses

• Control traffic based on security rules

• Translate IP addresses

Which type of firewall examines both the header and the state of the packet?

• Proxy Firewall

• Stateless Firewall

• Packet-Filtering Firewall

• Stateful Inspection Firewall

What does an Intrusion Detection System (IDS) do?

• Blocks incoming traffic automatically

• Monitors traffic and alerts on suspicious activity

• Encrypts internet traffic

• Assigns IP addresses

What is the role of Network Access Control (NAC)?

• Allows external users to control the network

• Prevents unauthorized devices from connecting

• Stores encrypted passwords

• Assigns MAC addresses