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AQA A-LEVEL COMPUTER SCIENCE 7517/1 PAPER 1 QUESTIONS AND CORRECT ANSWERS VERIFIED BY EXPERTS |ACCURATE ACTUAL EXAM WITH FREQUENTLY TESTED QUESTIONS WITH RATIONALE |GUARANTEED PASS |A+ GRADED |LATEST UPDATE

See computer science 2076 edited Computer Security Questions and Answers [20] 1. Computer security [SLC 2067] [SLC 2069] [SLC 2070 S] [SEE 2073] [SEE 2074 U] [SEE 2075 S2] The security given to the computer for the protection of hardware, software and data from being lost or damaged due to accidental or intentional harm is known as computer security. The types of computer security are hardware security and software security. 2. Objectives of computer security a) Confidentiality refers to...

AQA GCSE COMPUTER SCIENCE STUDY GUIDE 2024 | QUESTIONS AND CORRECT ANSWERS | VERIFIED ANSWERS | GRADED A+ | STUDY THIS ONE!

Edexcel GCSE Computer Science Glossary Exam Questions And Complete Answers Compiler Translates the whole program into machine code at once before the program is run. 1. Code executes quickly (as already translated). 2. Slower to find errors (as all code must be translated). Interpreter Translates source code into machine code, line by line when the program is run. 1. Code can run on different platforms/devices (as it's translated on the platform running the program). 2. Source c...

What is a Natural Number and its Symbol?Positive Integer (N) What is a Real Number and its Symbol?Any number (R) What is an Integer and its Symbol?Any whole number (Z) What is a Rational Number and its Symbol?Can be represented in a Fraction (Q) What is a Ordinal Number?Position in a list What is a Cardinal Number?Size of list What is Absolute Error?Difference between actual answer and estimate What is Relative Error?absolute error/true value

AlgorithmA sequence of steps to be performed to solve a problem Computer ProgramAn implementation of an algorithm Data StructureSpecialized format for storing and organizing data ProcedureA names section of code which performs a task and does not return a value FunctionA named section of code which performs a task and returns a value ParameterA special type of variable which can be passed through sub-routines ScopeThe reach of a variable/data structure

This symbol is used to show a Subroutine in flowcharts - Answer Input / Output a value with this symbol - Answer Make a decision in your flowchart with this symbol - Answer Start or end of a flowchart with this symbol - Answer For...Next statement - Answer is an iterative, incremental loop statement used to repeat a sequence of statements for a specific number of occurrences. Concatenation - Answer The process of joining two or more strings into one string. Keyw...

AP Computer Science Principles Programming (Khan Academy) UPDATED ACTUAL Questions and CORRECT Answers Which of the following is a benefit of procedures for programmers? - CORRECT ANSWER- Programmers can more easily understand programs with procedures, since procedures give names to complex pieces of code. Aarush is writing a program to help him calculate how much exercise he does at the gym. The procedure calcSwimYards returns the number of yards swum for a given number of laps i...

AP Computer Science UPDATED ACTUAL Questions and CORRECT Answers An algorithm has been developed to compute the sum of all the elements in a list of integers. Which of the following programming structures must be added to the existing algorithm so that the new algorithm computes the sum of only the even integers in the list? (2) (A) Iteration (B) Searching (C) Selection (D) Sequencing - CORRECT ANSWER- C. Selection

GCSE Edexcel Computer Science Exam Questions And Complete Solutions 1. Explain how binary is used to represent data (numbers, text, sound, graphics) and program instructions binary is used to represent all elements in a computer It is stored as a series of 0s and 1s These relate to the position of transistors (on or off) All analogue data stored is converted into digital (binary) 2 Explain the difference between unsigned and signed integers An unsigned integer can only represent positive...