CSEC IT Diagnostic Test

Which of the following is NOT a function of the Central Processing Unit (CPU)?

• Processing data

• Storing data permanently

• Controlling the flow of data

• Performing arithmetic operations

Answer explanation

The CPU processes data, controls data flow, and performs arithmetic operations. However, it does not store data permanently; that function is handled by storage devices like hard drives or SSDs.

Which type of software is used to manage the hardware and software resources of a computer?

• Application Software

• Operating System

• Utility Software

• Device Drivers

Answer explanation

The Operating System is the software that manages hardware and software resources on a computer, enabling applications to run and facilitating user interaction with the system.

Which storage device uses magnetic disks to store data?

• CD-ROM

• Solid-State Drive

• Hard Disk Drive

• Flash Drive

Answer explanation

The Hard Disk Drive (HDD) uses magnetic disks to store data, making it distinct from CD-ROMs, Solid-State Drives, and Flash Drives, which use different technologies for data storage.

Which of the following input devices is most suitable for entering text?

• Keyboard

• Scanner

• Mouse

• Microphone

Answer explanation

The keyboard is the most suitable input device for entering text, as it is specifically designed for typing. Scanners, mice, and microphones serve different functions and are not primarily used for text input.

What is the purpose of RAM in a computer system?

• Storing programs permanently

• Providing temporary storage for currently running programs

• Connecting the CPU to peripheral devices

• Performing logical operations

Answer explanation

RAM provides temporary storage for currently running programs, allowing quick access to data and instructions needed for processing. This is essential for system performance, unlike permanent storage which retains data long-term.

Which of the following network topologies uses a single central cable to connect all devices?

• Star

• Mesh

• Ring

• Bus

Answer explanation

The bus topology connects all devices using a single central cable, known as the bus. In contrast, star, mesh, and ring topologies use different methods for connecting devices, making bus the correct answer.

In problem solving, which step involves identifying the problem?

• Testing

• Analysis

• Design

• Implementation

Answer explanation

In problem solving, the Analysis step is where the problem is identified and understood. This is crucial for developing effective solutions, making it the correct choice for identifying the problem.

Which of the following is an example of application software?

• Windows 10

• Microsoft Word

• BIOS

• Linux Kernel

Answer explanation

Microsoft Word is application software designed for word processing, while Windows 10 and Linux Kernel are operating systems, and BIOS is firmware. Thus, Microsoft Word is the correct example of application software.

Which of the following terms describes unauthorized access to a computer system?

• Phishing

• Spoofing

• Hacking

• Encryption

Answer explanation

Hacking refers to unauthorized access to a computer system, often to steal data or disrupt operations. Phishing involves tricking users into revealing information, spoofing is impersonation, and encryption secures data.

Which of the following is considered a secondary storage device?

• RAM

• ROM

• USB Drive

• Cache Memory

Answer explanation

A USB drive is a secondary storage device used for storing data long-term, while RAM, ROM, and cache memory are types of primary storage that are faster but volatile or limited in storage capacity.