Which cryptographic measure is commonly required to help comply with privacy regulations like GDPR when storing personal data?

Using only symmetric encryption for all data

Avoiding encryption to ensure data is accessible for audits

Encrypting personal data at rest

Deleting all encryption keys after data is stored

What is the primary difference between PGP and S/MIME for email security?

PGP is used for web traffic, while S/MIME is used for email

PGP only encrypts, while S/MIME only signs

PGP uses a web of trust, while S/MIME uses a hierarchical certificate authority model

S/MIME is symmetric, while PGP is asymmetric

A database administrator needs to encrypt a column containing social security numbers in a SQL Server database. The application queries this column frequently. They want to minimize application changes while ensuring the data is encrypted at rest. What should they use?

Always Encrypted with deterministic encryption.

Transparent Data Encryption (TDE).

A trigger that encrypts data on insert and decrypts on select.

BitLocker on the database server.

CompTIASecurityX (CASP+)

Domain 3Objective 4

Cryptographic Use Cases CAS-005 Practice Questions (Page 5)

Part of the Security engineering domain, which accounts for 31% of the CAS-005 exam. CompTIA does not publish an official question count, but from its 165-minute exam (~65–110 total, ~20–34 in this domain), expect 4–7 from this objective — we provide 34 practice questions to prepare you well beyond it. (estimate)

34questions here

7free pages

7concepts

31%of the exam

Questions 21–25

21foundation · easy
Which cryptographic measure is commonly required to help comply with privacy regulations like GDPR when storing personal data?
Select an answer first
22foundation · easy
What is the primary difference between PGP and S/MIME for email security?
Select an answer first
23foundation · easy
Which protocol is used to encrypt and digitally sign email messages using a certificate-based public key infrastructure?
Select an answer first
24application · medium
A database administrator needs to encrypt a column containing social security numbers in a SQL Server database. The application queries this column frequently. They want to minimize application changes while ensuring the data is encrypted at rest. What should they use?
Select an answer first
25application · medium
A company has two data centers connected via a dedicated fiber link. They want to encrypt all traffic between the data centers at the network layer, including non-TCP protocols. Which technology should they use?
Select an answer first

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Cryptographic Use Cases CAS-005 Practice Questions (Page 5)

Questions 21–25

Which cryptographic measure is commonly required to help comply with privacy regulations like GDPR when storing personal data?

What is the primary difference between PGP and S/MIME for email security?

Which protocol is used to encrypt and digitally sign email messages using a certificate-based public key infrastructure?

A database administrator needs to encrypt a column containing social security numbers in a SQL Server database. The application queries this column frequently. They want to minimize application changes while ensuring the data is encrypted at rest. What should they use?

A company has two data centers connected via a dedicated fiber link. They want to encrypt all traffic between the data centers at the network layer, including non-TCP protocols. Which technology should they use?

Keep studying — Security engineering