Digital Environments

Question 1

Checksum

Answer 1

Number added to a sequence of digits that is generated based on its contents, used for error checking.

Question 2

Client–server

Answer 2

Network configuration where a centralised server controls network traffic between client computers.

Question 3

Core

Answer 3

A single processor in a CPU that can perform operations.

Question 4

Data as a service (DaaS)

Answer 4

Cloud file storage that is accessed over the Internet.

Question 5

Distributed denial of service (DDoS)

Answer 5

A coordinated attack that floods a website or network with traffic to bring it down.

Question 6

Debugger

Answer 6

Software utility for testing and detecting errors during software development.

Question 7

Device hardening

Answer 7

Securing devices against attacks using physical and logical security measures.

Question 8

Hardware

Answer 8

The physical components of a computer system.

Question 9

Infrastructure as a service (IaaS)

Answer 9

Virtualised delivery of computing infrastructure over the cloud (e.g. network, servers).

Question 10

Integrated development environment (IDE)

Answer 10

A software suite with tools for software developers.

Question 11

Local area network (LAN)

Answer 11

A network that operates over a limited geographical area.

Question 12

Middleware

Answer 12

Software that connects different systems or components, not directly used by end users.

Question 13

Network-attached storage (NAS)

Answer 13

A file storage system using dedicated servers on a network.

Question 14

Operating system

Answer 14

Software that manages hardware and provides a platform for applications.

Question 15

Platform as a service (PaaS)

Answer 15

A cloud environment allowing developers to build and deploy applications.

Question 16

Packet

Answer 16

A unit of data formatted for transmission across a network.

Question 17

Personal area network (PAN)

Answer 17

A network for connecting devices used by one person, typically within a few meters.

Question 18

Peer-to-peer

Answer 18

A network model where devices communicate directly without a central server.

Question 19

Peripherals

Answer 19

External devices connected to a computer (e.g. printers, scanners).

Question 20

Ports

Answer 20

Logical endpoints for network traffic (e.g. port 443 for HTTPS).

Question 21

Protocol

Answer 21

A set of rules for data exchange between devices on a network.

Question 22

Redundant array of independent disks (RAID)

Answer 22

A method of storing data across multiple drives for redundancy and performance.

Question 23

Ransomware

Answer 23

Malware that encrypts files and demands payment for decryption.

Question 24

Runtime

Answer 24

An error that occurs while a program is running.

Question 25

Software as a service (SaaS)

Answer 25

Cloud-based software accessed through a web browser.

Question 26

Secondary storage

Answer 26

Non-volatile hardware for long-term data storage (e.g. HDD, SSD).

Question 27

Servomechanism

Answer 27

A system that provides motion control, like motors in robotics.

Question 28

Sockets

Answer 28

An endpoint for sending or receiving data across a computer network.

Question 29

Software

Answer 29

Programs and instructions that control computer functions.

Question 30

Storage area network (SAN)

Answer 30

A high-speed network providing access to consolidated block-level storage.

Question 31

TCP/IP

Answer 31

A suite of protocols that governs communication on the Internet.

Question 32

Thin client

Answer 32

A lightweight computer that relies on a server for processing and storage.

Question 33

Virtualisation

Answer 33

Running multiple operating systems on one physical machine simultaneously.

Question 34

Virtual local area network (VLAN)

Answer 34

A subgroup within a LAN that combines devices into a separate logical network.

Question 35

Wide area network (WAN)

Answer 35

A network that spans large geographical areas (e.g. the Internet).