An obvious error
Crunchyhippo
Member Posts: 389
in Security+
While going over the practice tests in Exam Cram #2, I noticed a clear contradiction in the same question from one test to the other. The question was:
Which of the following statements are correct about Encapsulated Secure Payload (ESP) and Authentication Header (AH)? [Choose the two best answers.]
Test #1 says that AH can encrypt data and verify data integrity, and that ESP can only verify data integrity.
Test #2 says AH can only verify data integrity, and that ESP can encrypt data and verify data integrity.
As you can see, both can't be right. Which is the correct answer?
Which of the following statements are correct about Encapsulated Secure Payload (ESP) and Authentication Header (AH)? [Choose the two best answers.]
Test #1 says that AH can encrypt data and verify data integrity, and that ESP can only verify data integrity.
Test #2 says AH can only verify data integrity, and that ESP can encrypt data and verify data integrity.
As you can see, both can't be right. Which is the correct answer?
"Computers in the future may weigh no more than 1.5 tons." - Popular Mechanics, 1949
Comments
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dynamik
Banned Posts: 12,312 ■■■■■■■■■□
AH maintains authenticity and integrity while ESP does that as well as encryption.
I'd definitely run through this before taking the Security+: http://www.syngress.com/catalog/?pid=4350
Best book I've seen on the subject.