Implementing and Operating Cisco Security Core Technologies (SCOR) — Question 276

When choosing an algorithm to use. what should be considered about Diffie Heilman and RSA for key establishment?

Answer options

• A. RSA is a symmetric key establishment algorithm intended to output asymmetric keys.
• B. DH is an asymmetric key establishment algorithm intended to output symmetric keys.
• C. DH is a symmetric key establishment algorithm intended to output asymmetric keys.
• D. RSA is an asymmetric key establishment algorithm intended to output symmetric keys.

Correct answer: B

Explanation

Option B is correct because Diffie-Hellman (DH) is designed for establishing symmetric keys using asymmetric methods. Option A is incorrect as RSA is an asymmetric algorithm, not symmetric. Option C mistakenly categorizes DH as symmetric, and option D incorrectly states that RSA outputs symmetric keys, when it actually outputs asymmetric keys.