CompTIA IT Fundamentals Practice Certification

What is the primary purpose of a firewall in network security?

• To increase network speed

• To protect against unauthorized access

• To store data

• To connect devices

Grace is working on a project that involves handling sensitive customer data. Which of the following is a common method she can use to ensure data integrity?

• Encryption

• Data validation

• Data compression

• Data backup

What is the purpose of encryption in data security?

• To compress data

• To protect data by making it unreadable without a key

• To store data

• To delete data

What does the term "confidentiality" refer to in the context of information security?

• Ensuring data is accurate

• Protecting data from unauthorized access

• Ensuring data is available

• Backing up data regularly

Elijah is setting up his new computer and needs to install software that will manage the hardware and provide a platform for other software to run. Which of the following should he install?

• Adobe Photoshop

• Google Chrome

• macOS

• Microsoft Excel

Answer explanation

Elijah should install macOS, as it is an operating system that manages hardware and provides a platform for other software. The other options are applications, not systems that manage hardware.

David is working on a project and needs to decide on a method of application architecture. Which of the following should he consider?

• Client-server

• Binary

• Hexadecimal

• ASCII

Answer explanation

David should consider the client-server architecture as it is a common method for structuring applications, allowing for separation of client and server responsibilities. The other options (binary, hexadecimal, ASCII) are data formats, not architectures.

Which of the following is a best practice for creating strong passwords?

• Using common words

• Using a mix of letters, numbers, and symbols

• Using short passwords

• Using the same password for all accounts

Elijah is learning about number systems in his computer science class. He wants to know the hexadecimal equivalent of the binary number 1010. Can you help him?

• A

• B

• C

• D

Answer explanation

The binary number 1010 converts to hexadecimal by grouping bits: 1010 = A in hex. Therefore, the correct answer is A.

What is the role of an antivirus program?

• To increase network speed

• To detect and remove malicious software

• To store data

• To connect devices

Which of the following is a common threat to information security?

• Data validation

• Malware

• Data compression

• Data backup