A system administrator needs to encrypt a large database dump before transferring it to a backup server. The backup server is on a private network, and the administrator has a pre-shared key. Which encryption method is most efficient for this task?

RSA-2048 with the backup server's public key

AES-256 with the pre-shared key

What is the primary purpose of the Diffie-Hellman algorithm?

To compress data before encryption.

To generate digital signatures.

To securely exchange a shared secret key over an insecure channel.

To encrypt data using a public/private key pair.

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Domain 9Objective 1

Encryption Algorithms (Symmetric/Asymmetric) CEH Practice Questions (Page 6)

Part of the Cryptography domain, which makes up ~9% of our current practice bank. EC-Council does not publish an official question count, but from its 240-minute exam (~95–160 total, ~9–14 in this domain), expect 2–4 from this objective — we provide 41 practice questions to prepare you well beyond it. (estimate)

41questions here

9free pages

8concepts

Questions 26–30

26application · medium
A developer is implementing a digital signature feature for a document management system. The system must verify that a document was signed by a specific user and has not been altered. Which key should be used to verify the signature?
Select an answer first
27expert · hard
A legacy application uses 3DES for encrypting sensitive data. The security team wants to migrate to a more secure algorithm, but the application has a hard dependency on a 64-bit block size. Which algorithm should they choose?
Select an answer first
28foundation · easy
Which asymmetric algorithm is based on the mathematical difficulty of factoring large prime numbers?
Select an answer first
29application · medium
A system administrator needs to encrypt a large database dump before transferring it to a backup server. The backup server is on a private network, and the administrator has a pre-shared key. Which encryption method is most efficient for this task?
Select an answer first
30foundation · easy
What is the primary purpose of the Diffie-Hellman algorithm?
Select an answer first

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Encryption Algorithms (Symmetric/Asymmetric) CEH Practice Questions (Page 6)

Questions 26–30

A developer is implementing a digital signature feature for a document management system. The system must verify that a document was signed by a specific user and has not been altered. Which key should be used to verify the signature?

A legacy application uses 3DES for encrypting sensitive data. The security team wants to migrate to a more secure algorithm, but the application has a hard dependency on a 64-bit block size. Which algorithm should they choose?

Which asymmetric algorithm is based on the mathematical difficulty of factoring large prime numbers?

A system administrator needs to encrypt a large database dump before transferring it to a backup server. The backup server is on a private network, and the administrator has a pre-shared key. Which encryption method is most efficient for this task?

What is the primary purpose of the Diffie-Hellman algorithm?

Keep studying — Cryptography