A supply chain company wants to provide a way for its customers to verify that the digital invoices they receive have not been altered. The company plans to publish a hash of each invoice on a public blockchain. What is the primary benefit of using a blockchain for this purpose?

It provides a decentralized, tamper-evident timestamp of the hash.

It speeds up the invoice processing time.

It encrypts the invoice data, ensuring confidentiality.

It allows the company to revoke the invoice if needed.

What is a fundamental characteristic of a blockchain?

Records are stored in a distributed ledger that is resistant to modification

All data is encrypted and cannot be read by anyone

A central authority controls all transactions

Transactions are processed instantly without any delay

What is the primary purpose of a digital certificate in a Public Key Infrastructure (PKI)?

To encrypt all network traffic between two hosts

To bind a public key to an entity's identity

To store the private key of the certificate holder

To provide a backup of the user's password

A mobile app developer wants to hide the logic of a license validation function from casual reverse engineers. The developer does not need to protect against determined attackers. Which technique is most appropriate?

Hash the license key and compare it to a stored hash.

Encrypt the entire app binary with a hardcoded key.

Use a digital signature to sign the license key.

Use code obfuscation to rename variables and add dead code.

CompTIASecurity+

Domain 1Objective 4

Cryptographic Solutions SY0-701 Practice Questions (Page 1)

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 1–5

1application · medium
A supply chain company wants to provide a way for its customers to verify that the digital invoices they receive have not been altered. The company plans to publish a hash of each invoice on a public blockchain. What is the primary benefit of using a blockchain for this purpose?
Select an answer first
2foundation · easy
What is a fundamental characteristic of a blockchain?
Select an answer first
3foundation · easy
Which property of a secure hash function makes it computationally infeasible to find two different inputs that produce the same hash?
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4foundation · easy
What is the primary purpose of a digital certificate in a Public Key Infrastructure (PKI)?
Select an answer first
5application · medium
A mobile app developer wants to hide the logic of a license validation function from casual reverse engineers. The developer does not need to protect against determined attackers. Which technique is most appropriate?
Select an answer first

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