200-201 Security Monitoring Practice Question
Which OSI layer is responsible for logical addressing and routing, and is commonly targeted by IP spoofing attacks?
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
✓
Network layer
The Network layer (Layer 3) handles logical addressing (IP addresses) and routing. IP spoofing involves falsifying the source IP address at this layer.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Application layer
Why it's wrong here
The Application layer handles user-facing protocols.
- ✓
Network layer
Why this is correct
IP spoofing targets the Network layer.
- ✗
Transport layer
Why it's wrong here
The Transport layer handles ports and segmentation.
- ✗
Data Link layer
Why it's wrong here
The Data Link layer handles MAC addresses, not IP.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-201 practice question is part of Courseiva's free Cisco 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 200-201 exam.