Which statement correctly describes how to derive the header length from the IHL value?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Enhance your skills with the GCIA Traffic Analysis Test. Prepare with insightful questions and detailed explanations. Excel in your exam!

Multiple Choice

Which statement correctly describes how to derive the header length from the IHL value?

Explanation:
The value in the IHL field represents the header length in 32-bit words, not in bytes. To get the header length in bytes, multiply IHL by 4 (since each 32-bit word is 4 bytes). For example, an IHL of 5 means a 20-byte header (5 × 4). If options are present, IHL increases accordingly, up to a maximum of 15 (60 bytes). This conversion—IHL × 4—is what you use to derive the actual header length from the IHL value.

The value in the IHL field represents the header length in 32-bit words, not in bytes. To get the header length in bytes, multiply IHL by 4 (since each 32-bit word is 4 bytes). For example, an IHL of 5 means a 20-byte header (5 × 4). If options are present, IHL increases accordingly, up to a maximum of 15 (60 bytes). This conversion—IHL × 4—is what you use to derive the actual header length from the IHL value.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy