Exam 312-50v11 topic 1 question 4 discussion

Actual exam question from ECCouncil's 312-50v11

Question #: 4
Topic #: 1

User A is writing a sensitive email message to user B outside the local network. User A has chosen to use PKI to secure his message and ensure only user B can read the sensitive email. At what layer of the OSI layer does the encryption and decryption of the message take place?

A. Application
B. Transport
C. Session
D. Presentation

Show Suggested Answer

Suggested Answer: D 🗳️

by noot at March 6, 2021, 6 p.m.

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jenna339

Highly Voted 4 years, 4 months ago

The presentation layer or layer 6 of the OSI model is typically responsible for encryption and decryption

upvoted 10 times

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Dnd

Highly Voted 3 years, 11 months ago

Agreed The "Presentation" of the OSI layer does the encryption and decryption of the message

upvoted 6 times

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Shreyanshi1

Most Recent 1 year, 5 months ago

Selected Answer: A

Application layer

upvoted 1 times

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timbay20

1 year, 10 months ago

The Presentation Layer

upvoted 1 times

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ostorgaf

1 year, 11 months ago

Selected Answer: D

In the scenario you described, where a user is writing a sensitive email message and using PKI to secure the message, the encryption and decryption of the message would take place at the Presentation layer of the OSI model. The Presentation layer handles data translation, encryption, and decryption. In this case, it would convert the plaintext email message into an encrypted format for transmission (encryption) and then convert it back to plaintext upon receipt (decryption).

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