CERTIFIED-IN-CYBERSECURITY · Question #293
CERTIFIED-IN-CYBERSECURITY Question #293: Real Exam Question with Answer & Explanation
The correct answer is A: Symmetric encryption uses the same key for encryption and decryption, while asymmetric. Symmetric encryption uses the same key for encryption and decryption. In contrast, asymmetric encryption uses different keys for encryption and decryption (see ISC2 Study Guide, Module 1, under Encryption Overview). In symmetric encryption, the same key is used for both encryptin
Question
What is the main difference between symmetric and asymmetric encryption?
Options
- ASymmetric encryption uses the same key for encryption and decryption, while asymmetric
- BA symmetric encryption is slower than asymmetric encryption
- CA symmetric encryption is commonly more secure than asymmetric encryption
- DAsymmetric encryption uses the same key for encryption and decryption, while asymmetric
Explanation
Symmetric encryption uses the same key for encryption and decryption. In contrast, asymmetric encryption uses different keys for encryption and decryption (see ISC2 Study Guide, Module 1, under Encryption Overview). In symmetric encryption, the same key is used for both encrypting and decrypting data. This makes symmetric encryption faster than asymmetric encryption. Asymmetric encryption uses two different keys for encrypting and decrypting data. Using two different keys increases the security of the encryption process as only one key is used for encryption, and the other is used for decryption. The remaining options are incorrect because symmetric encryption is faster than asymmetric encryption, and symmetric encryption is not necessarily more secure.
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