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Computer Science

GCSE · OCR

QuestionsFlashcards

Identifying & Preventing Threats to Computer Systems & Networks
- Forms of Attack on a Network
  8
- Methods of Preventing a Network Attack
  10

Operating Systems & Utility Software
- The Purpose & Functionality of Operating Systems
  7
- The Purpose & Functionality of Utility Software
  6

Ethical, Legal, Cultural & Environmental Impact
- Impacts of Digital Technology on Wider Society
  7
- Legislation in Computer Science
  8

Boolean Logic Diagrams
- Boolean Logic Diagrams
  9
- Combining Boolean Operators
  7

The Internet Flashcards

All 7 cards in this deck

What is the Internet?: A worldwide collection of interconnected computer networks — a network of networks.
What is a DNS (Domain Name Service) and what does it do?: A service made up of many Domain Name Servers that converts a URL (domain name) into the IP address of the web server.
What is meant by hosting?: Storing a website or files on a server (usually owned by a hosting company) so that they can be accessed by others over the Internet.
What service does a web server provide?: It stores web pages and sends them to client devices that request them.
What is meant by 'the Cloud'?: The remote provision of services such as storage, software and processing, accessed over the Internet rather than held locally.
Give one advantage and one disadvantage of a business storing its files in the Cloud.: Advantage: files can be accessed from any device with an Internet connection, and backups are handled by the provider.
Disadvantage: no access to the files if the Internet connection fails.
True or false? A DNS is a single computer that stores every domain name in the world.: False. A Domain Name Service is made up of multiple Domain Name Servers that share the work of converting URLs to IP addresses.