CCD Network Security 2

Question 1

Which protocol uses TCP port 443 and provides encryption for web traffic?

Accepted Answer

HTTPS

Answer

HTTPS uses TLS/SSL encryption over TCP port 443 to secure web communications.

Question 2

What type of attack involves an adversary intercepting and potentially altering communications between two parties without their knowledge?

Accepted Answer

Man-in-the-Middle (MitM) attack

Answer

A Man-in-the-Middle attack positions the attacker between two communicating parties to intercept or modify data in transit.

Question 3

Which network device operates at Layer 3 of the OSI model and makes forwarding decisions based on IP addresses?

Accepted Answer

Router

Answer

Routers operate at the Network layer (Layer 3) and use IP addresses to determine the best path for forwarding packets.

Question 4

What is the purpose of a DMZ (Demilitarized Zone) in network architecture?

Accepted Answer

To provide a buffer zone for publicly accessible services

Answer

A DMZ is a network segment that isolates publicly accessible services (like web servers) from the internal network, reducing attack surface.

Question 5

Which attack floods a network with ICMP echo requests to overwhelm a target?

Accepted Answer

Ping flood (ICMP flood)

Answer

A ping flood (ICMP flood) sends a large volume of ICMP echo requests to exhaust the target's resources and bandwidth.

(CCD) Certified Cyber Defender Practice Test