What is the primary purpose of a cryptographic hash function?

To authenticate users with passwords

To ensure data integrity by detecting changes

To compress data for storage efficiency

To encrypt data for confidentiality

What is a common use of obfuscation in software security?

To encrypt the software's network traffic

To prevent attackers from easily reverse-engineering the code

To verify the integrity of the software

To provide strong authentication for users

A security architect is designing a solution for a messaging application that needs to provide end-to-end encryption. The application must also allow the server to perform keyword searches on the messages without decrypting them. Which approach is most appropriate?

Use TLS for all communications and rely on server-side logging.

Use homomorphic encryption to allow computations on encrypted data.

Use a simple XOR cipher and store the key on the client.

Use standard AES encryption for messages and store the keys on the server.

A group of organizations wants to collaborate on a shared project and needs a system to record decisions in a way that is transparent and cannot be altered by any single participant. Which technology is most appropriate?

A digital signature applied by each participant.

A centralized database with a single administrator.

A blockchain with a consensus mechanism.

A shared spreadsheet on a cloud drive.

CompTIASecurity+

Domain 1Objective 4

Cryptographic Solutions SY0-701 Practice Questions (Page 4)

Part of the General security concepts domain, which accounts for 12% of the SY0-701 exam. CompTIA does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–7 in this domain), expect 1–2 from this objective — we provide 22 practice questions to prepare you well beyond it. (estimate)

22questions here

5free pages

6concepts

12%of the exam

Questions 16–20

16foundation · easy
What is the primary purpose of a cryptographic hash function?
Select an answer first
17foundation · easy
Which key is used to create a digital signature?
Select an answer first
18foundation · easy
What is a common use of obfuscation in software security?
Select an answer first
19expert · hard
A security architect is designing a solution for a messaging application that needs to provide end-to-end encryption. The application must also allow the server to perform keyword searches on the messages without decrypting them. Which approach is most appropriate?
Select an answer first
20application · medium
A group of organizations wants to collaborate on a shared project and needs a system to record decisions in a way that is transparent and cannot be altered by any single participant. Which technology is most appropriate?
Select an answer first

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