COMPTIA ITF+ 3

Front

Purpose of the CPU in a computer system?

Back

Execute instructions and perform calculations.

Answer explanation

The purpose of the CPU in the computer system that Jackson, Olivia, and Anika are building is to execute instructions and perform calculations. The CPU is the central processing unit, responsible for processing data and carrying out tasks. The other options refer to different components or functions, such as connecting to the internet, displaying images and videos, or storing data and files.

Front

Ethan wants to save his project for future access after shutting down his computer. Which component stores data permanently?

Back

HDD or SSD

Answer explanation

Ethan should rely on the hard disk drive (HDD) or solid-state drive (SSD) for storing his data permanently. These components are designed for long-term storage, allowing him to access his project even after shutting down his computer. The other options, such as CPU, GPU, and RAM, are not meant for permanent data storage.

Front

Function of an operating system?

Back

Manage computer's hardware/software resources and provide services for programs.

Answer explanation

The question asks about the function of an operating system in a computer. The correct choice is that an operating system manages the computer's hardware and software resources and provides common services for the computer programs they will run. The other options are unrelated to the role of an operating system.

Front

Difference between system and application software.

Back

System software manages hardware; application software is for specific tasks.

Answer explanation

System software and application software serve different purposes. System software manages computer hardware and provides a platform for other software to run, while application software is designed for specific tasks, such as word processing or photo editing. The correct choice highlights this distinction, explaining that system software manages hardware and application software is task-specific.

Front

Role of a compiler in software dev:

Back

Translate high-level code to lower-level language for execution.

Answer explanation

A compiler's primary function in software development is to translate high-level programming code into a lower-level language that can be executed by a computer. This process allows developers to write code in a more human-readable form, while still enabling the computer to understand and execute the instructions.

Front

What is a DBMS?

Back

A DBMS is software for creating, manipulating, and managing databases.

Answer explanation

A database management system (DBMS) is a software that helps users create, manipulate, and manage databases, making it the ideal tool for Luna, Jackson, and Abigail's project. It is not a hardware device, programming language, or a computer virus, as the other options suggest.

Front

Purpose of data normalization in a database?

Back

Eliminate redundancy & improve data integrity.

Answer explanation

The purpose of data normalization in database management, as per the question, is to eliminate redundancy and improve data integrity. This process ensures that data is stored in a consistent and efficient manner, reducing the chances of data duplication and enhancing the overall quality of the data.

Front

Main types of internet security threats:

Back

Malware, Phishing, Hacking

Answer explanation

The question asks about the three main types of information security threats on the internet. The correct answer is 'Malware, Phishing, Hacking'. Malware is malicious software designed to cause damage, phishing is a method used to steal sensitive information, and hacking is unauthorized access to data. The other options are either security measures or principles, not threats.

Front

Difference between authentication and authorization:

Back

Authentication verifies identity; authorization grants access based on privileges.

Answer explanation

In the context of IT administration, authentication and authorization serve different purposes. Authentication is the process of verifying the identity of a user, ensuring they are who they claim to be. On the other hand, authorization is about granting access to resources based on the user's privileges. Therefore, the correct answer is 'Authentication verifies identity, while authorization grants access based on privileges.'

Front

Purpose of a firewall in network security?

Back

Establishes a barrier between a trusted internal network and an untrusted external network, preventing unauthorized access and protecting against threats.

Answer explanation

In the context of the question, Mia, Benjamin, and Elijah want to secure their small office network. The correct option is that a firewall establishes a barrier between a trusted internal network and an untrusted external network. It prevents unauthorized access and protects against potential threats, ensuring the security of their network.