Cyber Security Network Security 2

Question 1

What is a VPN primarily used for in a corporate environment?

Accepted Answer

Create a secure encrypted tunnel for remote access

Answer

A VPN creates an encrypted tunnel allowing remote users to securely access corporate resources.

Question 2

Which scanning technique sends a TCP SYN packet and waits for a SYN-ACK without completing the handshake?

Accepted Answer

SYN (half-open) scan

Answer

A SYN scan sends a SYN packet and analyzes responses without completing the full TCP handshake, making it stealthier.

Question 3

What does MAC address spoofing allow an attacker to do on a network?

Accepted Answer

Impersonate another device's hardware address

Answer

MAC address spoofing changes the hardware address to impersonate another device, bypassing MAC-based access controls.

Question 4

Which protocol is most vulnerable to ARP poisoning attacks?

Accepted Answer

IPv4 on a local network segment

Answer

ARP poisoning targets IPv4 on local network segments by associating the attacker's MAC with a legitimate IP address.

Question 5

What is the purpose of network segmentation in cybersecurity?

Accepted Answer

Limit lateral movement by isolating network zones

Answer

Network segmentation divides a network into zones to contain breaches and limit an attacker's lateral movement.

Cyber Security Practice Test