ACtE08 · Chapter 8Mock Test 06🏛️ Past Licensure QuestionID: c59c5ad9
What is the minimum header size of a standard IPv4 datagram packet?
What is the minimum header size of a standard IPv4 datagram packet?
Multiple Choice Options
- A
16 bytes
- B
10 bytes
- C✓ Correct Option
20 bytes
- D
32 bytes
Detailed Technical Solution & Explanation
The IPv4 header contains an Internet Header Length (IHL) field that specifies header size in 32-bit (4-byte) words. The minimum valid IHL value is 5 words, which equals (when no optional fields are present). The maximum is 60 bytes.
Option Analysis:
•
Option A (16 bytes): Incorrect.
•
Option B (10 bytes): Incorrect.
•
Option C (20 bytes): Correct. Standard minimal IPv4 header size.
•
Option D (32 bytes): Incorrect.
Reference: Mock Test 06NEC Licensure Syllabus