Which method is used to exploit vulnerabilities, services, and applications?

The correct answer is D. port evasion. Port evasion is a technique attackers use to bypass port-based firewall controls in order to exploit vulnerabilities in services and applications. By disguising traffic on non-standard ports, tunneling through allowed ports (e.g., HTTP/HTTPS), or using port hopping, attackers…

Submitted by ashley.k· Apr 18, 2026Network Security

Question

Options

Aencryption
Bport scanning
CDNS tunneling
Dport evasion

How the community answered

(48 responses)

A
2% (1)
B
2% (1)
C
6% (3)
D
90% (43)

Explanation

Port evasion is a technique attackers use to bypass port-based firewall controls in order to exploit vulnerabilities in services and applications. By disguising traffic on non-standard ports, tunneling through allowed ports (e.g., HTTP/HTTPS), or using port hopping, attackers circumvent traditional port-based security policies to reach and exploit their targets. Port scanning (B) discovers open ports but does not itself exploit them. Encryption (A) is a protection mechanism, and DNS tunneling (C) is a specific covert communication technique rather than a general exploitation method.

Topics

#Exploitation Techniques#Network Attacks#Firewall Evasion#Security Bypass

Community Discussion

No community discussion yet for this question.

Full PCCET Practice