A user receives a digitally signed email from a colleague. The user wants to verify that the email was actually sent by the colleague and not an imposter. What should the user do?

Compare the email's hash to a published hash

Verify the digital signature using the colleague's public key

Check the email's subject line for authenticity

Decrypt the email with the user's own private key

Which of the following is a characteristic of symmetric encryption?

It uses the same key for both encryption and decryption

It uses two different keys, one for encryption and one for decryption

It requires a public key and a private key pair

It is slower than asymmetric encryption for large data sets

What is the main purpose of a Public Key Infrastructure (PKI)?

To manage and distribute public keys through digital certificates

To provide a backup system for encrypted data

To encrypt all data stored on a hard drive

To replace the need for passwords in authentication

A company must encrypt data in transit and at rest. They are considering using a single encryption method for both. The security team argues that different methods should be used. Which statement best supports the security team's position?

Using the same method simplifies key management

Data in transit and at rest have different threat models and performance requirements

The same method is always more secure

A single method is more cost-effective

CompTIATech+

Domain 6Objective 4

Encryption FC0-U71 Practice Questions (Page 5)

Part of the Security domain, which accounts for 19% of the FC0-U71 exam. CompTIA does not publish an official question count, but from its 60-minute exam (~25–40 total, ~5–8 in this domain), expect 1–2 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

8concepts

19%of the exam

Questions 21–25

21application · medium
A user receives a digitally signed email from a colleague. The user wants to verify that the email was actually sent by the colleague and not an imposter. What should the user do?
Select an answer first
22foundation · easy
Which of the following is a characteristic of symmetric encryption?
Select an answer first
23foundation · easy
Which encryption protocol is commonly used to secure web traffic between a browser and a web server?
Select an answer first
24foundation · easy
What is the main purpose of a Public Key Infrastructure (PKI)?
Select an answer first
25expert · medium
A company must encrypt data in transit and at rest. They are considering using a single encryption method for both. The security team argues that different methods should be used. Which statement best supports the security team's position?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to FC0-U71

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by CompTIA. “FC0-U71” is a trademark of its owner, used for identification only.