WorksheetsLevel 5 - Crypto Quiz 2 of 2
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What is the key difference between obfuscation and encryption in the context of data confidentiality?
a)
A. Obfuscation is more secure than encryption.
b)
B. Encryption changes the data, while obfuscation makes it difficult to understand without changing the data itself.
c)
C. Obfuscation is faster than encryption.
d)
D. Encryption is a form of obfuscation.
2.
What is the main issue with the availability of data when encryption is implemented?
a)
A. Encryption always corrupts data.
b)
B. Encryption can slow the availability of data.
c)
C. Encrypted data can't be decrypted.
d)
D. Encrypted data cannot be stored on cloud.
3.
Which encryption approach is fast and efficient for bulk data encryption?
a)
A. Asymmetric encryption
b)
B. Hashing
c)
C. Symmetric encryption
d)
D. Obfuscation
4.
What is the major weakness in Microsoft's Encrypting File System (EFS)?
a)
A. It uses a hybrid cryptosystem.
b)
B. The user's private key is essentially their user password.
c)
C. It uses symmetric encryption for bulk data.
d)
D. It uses hashing for message integrity.
5.
What is a digital signature?
a)
A. A type of encryption key
b)
B. A combination of asymmetric encryption and hashing values
c)
C. A type of hashing algorithm
d)
D. A secret code used to decrypt data
6.
What is the process of hiding ciphertext inside a media file known as?
a)
A. Encryption
b)
B. Hashing
c)
C. Steganography
d)
D. Asymmetric Encryption
7.
What is a Trusted Platform Module (TPM)?
a)
A. A type of asymmetric encryption
b)
B. A hardware chip on the motherboard that can generate and store cryptographic keys
c)
C. A type of hardware security module (HSM)
d)
D. A software program used for data encryption
8.
In what form do Hardware Security Modules (HSM) traditionally come?
a)
A. A type of encryption algorithm
b)
B. A software program
c)
C. A plug-in card or an external security device attached to a computer system
d)
D. A form of hashing algorithm
9.
How does a digital signature confirm message integrity and sender authenticity?
a)
A. By comparing the hash values of the sender and the recipient
b)
B. By comparing the two hash values of the message received
c)
C. By comparing the digital certificate and the message received
d)
D. By comparing the encrypted message and the decrypted message
10.
What is the major concern related to the reuse of encryption keys?
a)
A. It decreases the speed of encryption
b)
B. It increases the entropy of the keys
c)
C. It increases the likelihood of the key being cracked
d)
D. It decreases the length of the keys.
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