WorksheetsIT7: Systems Software Introduction
Total questions: 30
Worksheet time: 15mins
Which of the following best describes what software is?
Software consists of computer programs that run on a computer.
Software is only the physical parts of a computer, such as the keyboard and monitor.
Software is the electricity that powers a computer and its devices.
Software is the internet connection used by a computer.
Which tool of an operating system allows the user to interact with the computer?
User interface
File management with advanced search features
Device drivers for external devices only
Memory management for large files
Refer to the diagram showing the relationship between Users, Applications, Operating System, and Hardware. According to the diagram, which component acts as an intermediary between applications and hardware?
Operating System
Users
Applications
Device drivers
Which of the following is the main purpose of compression software?
To reduce the size of files for storage or transfer
To reorganize files on a disk for faster access and efficiency
To convert data into a coded format for security
To clean unnecessary files from the system
Which utility software is used to improve the efficiency and speed of a computer by reorganizing data on a disk?
Defragmentation software
Encryption software
Backup software
Compression software
What is the name of the cipher where each letter in the alphabet is shifted by a fixed number of positions to encrypt a message?
Caesar cipher
Vigenère cipher with a keyword
Substitution cipher with random mapping
Transposition cipher
Using a Caesar cipher with a shift of 3, what is the decrypted message for the cipher text 'FRPSUHVVLRQ'?
COMPRESSION
ENCRYPTION
DECRYPTION
PROTECTION
What is the result when the letter 'A' is encrypted using a Caesar cipher with a shift of 3?
D
C, because it is three letters before A in the alphabet
B, because it is the next letter after A
Z, because it is the last letter in the alphabet
If the cipher text is 'FRPSUHVVLRQ', what is the original plain text word?
COMPRESSION
DEFRAGMENTATION, because it is another IT term
ENCRYPTION, because it is related to security
ANTIVIRUS, because it protects computers
What is the plain text word for the cipher text 'GHIDJPHQWDWLRQ'?
DEFRAGMENTATION
COMPRESSION, because it is another IT term
ENCRYPTION, because it is related to security
FIREWALL, because it is a network protection term
If you encrypt the word 'BACKUP' using a Caesar cipher with a shift of 3, what is the resulting cipher text?
EDFNXS
FRPSUHVVLRQ, because it is the cipher for 'COMPRESSION'
DQWLYLUXV, because it is the cipher for 'ANTIVIRUS'
ILUHZDOO, because it is the cipher for 'FIREWALL'
What is the result when the letter 'Z' is encrypted using a Caesar cipher with a shift of 3?
C
A, because it is the first letter in the alphabet
X, because it is three letters before Z
B, because it is the next letter after A
Which utility software tool is responsible for detecting, blocking, deleting, or quarantining computer viruses?
Anti-virus
Firewall with extra monitoring features
File explorer with virus scanning
Systems cleaner
Which utility software tool is used to reorganise files and parts of files so they can be grouped together for faster access?
Defragmentation
Compression
Systems cleaner
Firewall
Which of the following best describes why compression is used for documents?
Compression reduces file size so documents can be stored, loaded onto a webpage, or emailed more easily.
Compression increases the quality of documents for printing and sharing.
Compression makes documents more secure by encrypting their contents.
Compression changes the file format to make it compatible with all devices.
What is the main purpose of defragmentation on a hard drive?
To rearrange files and parts of files so they are grouped together, allowing faster access to data.
To delete unnecessary files from the hard drive, freeing up space.
To increase the number of read/write cycles on the hard drive, making it last longer.
To protect files from being accidentally deleted by the user.
Why should you not defragment a solid state drive (SSD)?
Because it can do more harm than good due to the limited number of read/write cycles on SSDs.
Because SSDs are slower than hard drives and do not benefit from defragmentation.
Because defragmentation will erase all data on the SSD.
Because SSDs automatically organize files without any need for defragmentation.
Which of the following best describes how the Caesar Cipher works?
It substitutes each character in the message by shifting it a certain number of places in the alphabet.
It replaces each word with a number based on its length and position.
It reverses the order of all letters in the message.
It changes all vowels to numbers and consonants to symbols.
What is the result when the letter 'A' is encrypted using a Caesar cipher with a shift of 3?
D
C, because the shift is 3 letters forward from A, which is C
B, since it is the next letter after A
E, as it is three letters after A
If you encrypt the word 'BACKUP' using a Caesar cipher with a shift of 3, what is the resulting cipher text?
EDFNXS
EDFMXS, by shifting each letter by 3
ECKNXS, by moving each letter forward by 3
EDFNXR, by shifting each letter by 3
What is the main purpose of using a Caesar cipher in information technology?
To encrypt messages by shifting letters by a fixed number
To compress files for storage
To protect computers from viruses
To organize files on a hard drive
If the cipher text is 'ILUHZDOO', what is the original word before encryption using a Caesar cipher with a shift of 3?
FIREWALL
ENCRYPTION
COMPRESSION
BACKUP
Which type of software is responsible for maintaining and optimizing the performance of a computer by performing housekeeping tasks?
Utility software
Application software with advanced features for gaming
Open source software for communication
Specialist software for graphic design
Which utility software tool uses an algorithm to reduce the size of a file in order to save on storage space?
Compression
Defragmentation with extra steps
Encryption for large files
File explorer
Which utility software tool is used to scramble data to make it unreadable and keep sensitive data secure?
Encryption
Compression with password protection
Defragmentation for security
Firewall
Which utility software tool detects, blocks, deletes, or quarantines computer viruses?
Anti-virus
Firewall with virus scanning
System cleaner for malware
Package installer
Which utility software tool provides a graphical user interface for accessing file systems?
File explorer
System cleaner with GUI
Package installer for files
Defragmentation tool
Which utility software tool installs files such as applications, drivers, or other software onto the computer?
Package installer
File explorer with installation features
System cleaner for new software
Firewall for installation
Which of the following is NOT a purpose of utility software?
To create complex graphics
To keep data secure
To prevent data loss by creating duplicate copies
To improve the performance of the hard drive
What is the main purpose of encryption utility software?
To scramble data to make it unreadable and keep sensitive data secure
To compress files for storage
To reorganize files for faster access
To monitor network traffic
