1
Q
three main factors of authentication
A
- something you are: username, bank account, unique identification etc.
- something you know: password, pin, answer to a question
- something you have: swipe card, biometrics (fingerprint etc.)
2
Q
captchas
A
internet bots can submit data automatically to online forms, they could enter lots of data at once and crash the system, or create fake accounts, damaging the usability of the system
captchas verify that the user is human, preventing against software that enters data
Computer Science
flashcards
Decks in class (69)
# Cards
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1.1 The central processing unit15
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1.1 Components of the CPU11
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1.1 Fetch-decode-execute cycle 15
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1.1 Fetch-decode-execute cycle 25
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1.1 Performance of the CPU15
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1.1 Embedded systems9
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1.2 RAM and ROM9
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1.2 Virtual memory6
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1.3 Secondary storage 1: optical and magnetic devices11
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1.3 Secondary storage 2: solid state memory10
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1.3 Storage 3: capacity, speed and cost11
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1.3 Storage 4: portability, durability and reliability17
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1.3 Other types of storage4
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1.4 Networks 1: LANs and WANs15
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1.4 Networks 2: client-server and peer-to-peer8
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1.4 Transmission media14
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1.4 Connecting computers to a LAN9
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1.4 The internet12
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1.4 Network topologies9
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1.4 Virtual networks (VLAN)5
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2.1 Computational thinking10
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2.1 Algorithms10
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2.1 Algorithms - flow diagrams7
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2.1 Linear search5
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2.1 Binary search5
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2.1 Comparing linear and binary searches6
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2.1 Bubble sort5
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2.1 Insertion sort4
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2.1 Merge sort5
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2.6 Data representation9
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2.6 Converting from denary to binary4
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2.6 Converting from binary to denary and binary addition7
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2.6 Binary shifts5
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2.6 Hexadecimal and denary5
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2.6 Hexadecimal and binary6
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2.6 Check digits6
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2.6 Characters5
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2.6 Images9
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2.6 Sound12
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2.6 Compression14
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Algorithms - Pseudocode12
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Interpreting, correcting and completing algorithms5
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Variables and constants9
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Arithmetic operators11
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Comparison operators11
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Boolean operators5
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Selection9
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Iteration5
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Data types11
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String manipulation9
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Arrays7
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File handling operations6
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Records5
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Sub-programs13
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Computational logic 110
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Computational logic 26
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Programming languages9
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Defensive design16
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Validation8
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Data sanitisation3
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Authenication2
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Maintainability5
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Testing and maintainability13
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Structured query language (SQL)18
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Ethical and legal issues4
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Cultural issues 17
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Cultural issues 26
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Environmental issues6
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Privacy issues6
