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WorksheetsComputing Concepts and Operating Systems
Total questions: 32
Worksheet time: 16mins
Which of the following aspects is not covered by the CIA triad?
Confidentiality
Integrity
Availability
Non-repudiation
What is the purpose of non-repudiation?
To ensure accountability by proving actions were taken by an individual or entity, thus preventing disputes
To protect data from unauthorized disclosure
To guarantee data remains unchanged from its creation, transmission, or storage
To ensure data is available when needed
Which two aspects are covered by the two pillars of information security?
Confidentiality and integrity
Integrity and availability
Non-repudiation and authentication
Authentication and confidentiality
Which of the following is not a component of IAA?
Confidentiality
Integrity
Availability
Non-repudiation
What is the purpose of IAA?
To prevent security incidents by using measures such as firewalls, intrusion detection systems, and security policies
To ensure accountability by proving actions were taken by an individual or entity, thus preventing disputes
To guarantee data remains unchanged from its creation, transmission, or storage
To protect data from unauthorized disclosure
What does IAA strive to maintain?
Confidentiality, integrity, and availability of informational assets
Data accessibility for authorized individuals or systems
Trustworthiness in electronic transactions
Non-repudiation and authentication
What is the interrelationship of process, people, and technology in IAA?
Procedures, policies, and guidelines are processes that organizations use to ensure secure information protection
Safeguarding information assets relies on the participation of people such as employees, contractors, and stakeholders
Integrating technology with processes and people is crucial to maximize security benefits
All of the above
What is the purpose of protection rings?
To guard the kernel and bestow different levels of access to resources
To provide a command-line interface, customisation, stability, and security
To support various software applications and gaming
To protect the kernel from dangerous or poorly coded software
Which ring is the least privileged?
Ring 0
Ring 1
Ring 2
Ring 3
What is Kernel mode?
Where user-level applications operate with limited system resource access
Where the most privileged ring is found
Where system resources are directly accessed by user-level applications
Where user-level applications are preserved
Which operating system is proprietary and supports various software applications and gaming?
Linux
Windows
Which operating system provides a command-line interface, customisation, stability, and security?
Windows
Linux
What is the function of a file system in an operating system?
It supports the organisation of directories and files, tracks their location, and provides access to read, write, and modify files
It provides a user interface for the operating system
It manages the computer’s hardware resources
It controls the execution of programs and operations
What are some examples of file systems?
FAT, NTFS, XFS, EXT4, and APFS
Windows, Linux, MacOS
CPU, RAM, Hard Disk
Python, Java, C++
What factors are influenced by the way files are organised and managed by each file system?
The storage medium’s performance, dependability, and compatibility
The speed of the internet connection
The power consumption of the computer
The colour resolution of the monitor
Which file system is used by the Windows operating system?
FAT32
APFS
NTFS
EXT4
What does a common hard drive partition scheme used by users include?
A 100 MB System Reserved partition, the Windows partition (C: drive), and a hidden Recovery partition
A single partition for all files and folders
Separate partitions for each installed program
A partition for each type of file (documents, images, videos, etc.)
What are some of the file systems used by Linux-based OSes?
FAT32, NTFS, APFS
EXT4, XFS, Btrfs, ZFS
Boot, root, swap, home
Windows, MacOS, Linux
What is the primary file system used by Linux?
XFS
Btrfs
EXT4
ZFS
What are some of the common partitions used in Linux?
Boot, root, swap, home
FAT32, NTFS, APFS
Windows partition (C: drive), System Reserved partition, Recovery partition
Documents, Downloads, Pictures
What is the maximum file size that FAT32 can support?
4 GB
8 TB
16 exabytes
256 TB
What is the purpose of using Redundant Array of Independent Disks (RAID)?
To improve storage performance and reliability
To reduce the cost of storage
To increase the size of the disks
To make the disks look more attractive
What is the advantage of RAID 0?
It increases read and write speeds by distributing data across multiple disks without parity
It duplicates data on two or more disks, ensuring data redundancy and high availability
It has the ability to sustain one disk failure while retaining data
It is capable of withstanding the simultaneous failure of two disks
How many disks are required at minimum for RAID 5?
Two
Three
Four
Five
What is the special feature of RAID 6?
It uses two parity blocks instead of one, making it capable of withstanding the simultaneous failure of two disks
It increases read and write speeds by distributing data across multiple disks without parity
It duplicates data on two or more disks, ensuring data redundancy and high availability
It creates two mirrored sets of striped volumes that offer high performance and data redundancy
What does RAID 10 do?
It creates two mirrored sets of striped volumes that offer high performance and data redundancy
It uses two parity blocks instead of one, making it capable of withstanding the simultaneous failure of two disks
It increases read and write speeds by distributing data across multiple disks without parity
It duplicates data on two or more disks, ensuring data redundancy and high availability
What is used in traditional computing to run applications and store data?
On-premises physical hardware like desktop computers, servers, and storage devices
Cloud services
Virtual machines
Resource groups
What is a resource group in a cloud setting?
A logical container that oversees resources for a project or app
A subscription between a user or organisation and a cloud service provider
A geographic location where data centres offering cloud services and resources are hosted
A separate location within a region, isolated from other zones
What are some of the models that cloud computing offers?
IaaS, PaaS, SaaS, and FaaS
Traditional computing, cloud computing, hybrid computing
Desktop computers, servers, storage devices
Resource groups, subscriptions, regions
What is FaaS in the context of cloud computing?
A serverless computing environment that enables event-driven applications without infrastructure concerns
A model where the user has to manage all underlying infrastructure
A model that requires on-premises physical hardware to run applications and store data
A model that requires the user to have local access to data and applications
What are some key features of FaaS?
Event-driven execution, automatic scaling, and usage-based pricing
High infrastructure control and ease of use
Requirement for infrastructure or middleware management
Need for on-premises physical hardware
What does data integrity guarantee?
Data remains unchanged from its creation, transmission, or storage
Data is accessible to authorized individuals or systems
Data is protected from unauthorized disclosure
Data is available when needed
