ISC2 CC Network Security Practice Question
During a security assessment, a penetration tester captures network traffic and notices that the source IP address in packets appears to be from a different network. Which technique is the attacker likely using?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
IP spoofing
IP spoofing involves forging the source IP address in packets to impersonate another system or hide the true origin. This can be used in various attacks like DDoS or session hijacking.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
DNS spoofing
Why it's wrong here
DNS spoofing corrupts DNS responses.
- ✗
ARP spoofing
Why it's wrong here
ARP spoofing falsifies MAC-IP mappings.
- ✗
MAC spoofing
Why it's wrong here
MAC spoofing changes the source MAC address, not IP.
- ✓
IP spoofing
Why this is correct
IP spoofing forges the source IP address.
Go deeper
Related to this question
Learn chapter
Introduction to Security Principles
Key term
DDoS
A DDoS (Distributed Denial-of-Service) attack is a malicious attempt to disrupt normal traffic of a targeted server, service, or network by overwhelming it with a flood of internet traffic from multiple compromised systems.
Key term
Denial-of-service
A Denial-of-service (DoS) attack is an attempt to make a computer, network, or online service unavailable to its intended users by overwhelming it with fake traffic or requests.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CC practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CC exam.