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Computer Science

GCSE · AQA

QuestionsFlashcards

Representing Algorithms
Efficiency of Algorithms
Searching Algorithms
Sorting Algorithms

Data Types
Programming Concepts
Arithmetic, Relational & Boolean Operations
Data Structures
Input, Output & String Handling
Random Number Generation
Subroutines & Structured Programming
Robust & Secure Programming

Number Bases & Conversions
Units of Information
Binary Arithmetic
- Binary Addition
  3
- Binary Shifts
  6
Character Encoding
Representing Images
Representing Sound
Data Compression

Hardware & Software
Boolean Logic
Programming Languages & Translators
CPU & the Fetch-Execute Cycle
Memory & Storage
Embedded Systems

Network Types & Connections
Protocols & the TCP/IP Model
Network Security

Cyber Security Threats
Social Engineering
- What Social Engineering Is
  4
- Blagging, Phishing & Shouldering
  5
Malware
- What Malware Is
  2
- Viruses, Trojans & Spyware
  3
Detecting & Preventing Threats

Relational Databases
SQL

Ethical, Legal & Environmental Impacts

Sherpa Study
GCSE Computer Science
AQA Flashcards
6. Cyber Security
Detecting & Preventing Threats
CAPTCHA & Email Confirmations

CAPTCHA & Email Confirmations Flashcards

All 3 cards in this deck

What is CAPTCHA used for?: To check that a user is a human and not an automated program (bot), using a test a person can pass but a bot cannot, e.g. picking out distorted letters or images.
What kinds of attack does CAPTCHA help to prevent?: Automated attacks by bots, e.g. creating large numbers of fake accounts, or trying thousands of passwords on a login page.
How does an email confirmation confirm a user's identity?: The website sends a link or code to the registered email address, and the user must use it to finish creating the account or approve an action. This proves they have access to that email account.