There are 6 parts of a programming problem that will be identified using pattern generalisation and abstraction. What are they?

Variables, Constants, Key Pairs, Reference Points, Inputs, Outputs

Variables, Classes, Key Pairs, Reference Points, Inputs, Outputs

Variables, Constants, Key Processes, Reference Points, Inputs, Outputs

Variables, Constants, Key Pairs, Relational Points, Inputs, Outputs

Why would a programmer use abstraction to solve a problem?

To reduce complexity and increase efficiency

To make the code more dependent on specific implementations

To reduce the number of lines of code

What is an algorithm?

A step-by-step procedure for calculations

The first stage of algorithm design is understanding the problem. Can you identify 3 other stages?

Planning, Implementation, Testing

Analysis, Development, Maintenance

Specification, Validation, Evolution

A control flow statement for specifying iteration

What is a REPEAT UNTIL loop?

A loop that executes at least once and continues until the condition becomes false

A loop that executes the same code block repeatedly until a certain condition is met

A loop that checks the condition before executing the code block

A function that repeats code execution without conditions

What is a WHILE loop?

A control flow statement that allows code to be executed repeatedly based on a given Boolean condition

A data structure used to store elements

A function that executes once and stops

What is a WHILE NOT loop?

A loop that continues until a specified condition becomes false

A loop that executes indefinitely without any condition

A loop that starts only when a condition is true

A loop that breaks immediately upon starting

What is the difference between a pre and a post conditional loop?

A pre-conditional loop checks the condition before executing the loop body, while a post-conditional loop checks it after the loop body has executed.

A pre-conditional loop executes at least once regardless of the condition, while a post-conditional loop may not execute if the condition is not met initially.

There is no difference between a pre and a post conditional loop.

A pre-conditional loop is used only in specific programming languages, while a post-conditional loop is universal.

A data structure that stores elements of the same type

Both a collection of items and a type of data structure

A document or electronic storage that records information

What does a bubble sort algorithm do?

Sorts elements by repeatedly swapping the adjacent elements if they are in wrong order

Selects the smallest element from an unsorted list in each iteration and places that element at the beginning

Divides the original array into smaller arrays until each small array is sorted

Creates a tree structure and places elements in a sorted order

Which of the following best describes a Quick Sort algorithm?

A sorting algorithm that uses a divide and conquer approach to sort elements.

A sorting algorithm that sorts elements by repeatedly moving them to their correct positions.

A sorting algorithm that compares each pair of adjacent items and swaps them if they are in the wrong order.

A sorting algorithm that builds the final sorted array one item at a time.

What does an Insertion Sort algorithm do?

Sorts an array by repeatedly inserting elements into a sorted subarray.

Finds the smallest element in an array.

Sorts an array by swapping adjacent elements.

Creates a new array with sorted elements.

Describe a serial/linear search. Does the data have to be sorted?

A serial/linear search is a method for finding a target value within a list; it sequentially checks each element of the list for the target value until a match is found or until all the elements have been searched. The data does not need to be sorted.

A serial/linear search is a method for finding a target value within a list; it requires the list to be sorted before the search begins.

A serial/linear search is a method that uses a divide and conquer strategy to find a target value within a list; the data must be sorted.

A serial/linear search is a method that requires random access to elements in the list; sorting is not necessary but improves performance.

Describe a binary search. Does the data have to be sorted?

Yes, the data must be sorted for binary search to work.

No, the data does not need to be sorted for binary search.

Binary search can work with or without sorted data.

Sorting is optional but recommended for binary search.

Describe a count occurrences search.

A method to tally the number of times a particular element appears in a dataset.

A search algorithm that finds the unique elements in a dataset.

A sorting technique used for arranging elements in an ascending order.

A data structure used to store key-value pairs.

A data structure that follows the Last In First Out (LIFO) principle.

A collection of elements with a predefined fixed size.

A data structure that allows insertion and deletion at one end only.

A data structure that follows the First In First Out (FIFO) principle.

A data structure that allows access to only the newest element.

A programming language used for web development.

A type of data that stores numerical values.

What is the difference between local and global variables?

Local variables are defined within a function and can only be accessed within that function, while global variables are defined outside any function and can be accessed by any part of the program.

Local variables are stored in the cloud, while global variables are stored on the user's local machine.

Local variables can be accessed by any part of the program, while global variables are restricted to the function they are defined in.

There is no difference between local and global variables.

Which of the following best describes the functions: random, range, round, truncation?

Functions used in generating random numbers and sequences

Functions related to mathematical operations

Functions for data manipulation

What is the concatenation function?

A function that merges two or more strings into one.

A function that splits a string into an array.

A function that replaces characters in a string.

A function that converts other data types to strings.

Describe 2 validation check techniques.

Boundary value analysis and Equivalence partitioning

Syntax checking and Data type checking

Unit testing and Integration testing

Black-box testing and White-box testing

Describe what is meant by Procedural Programming.

A programming paradigm based on the concept of the procedure calls

A programming style that uses classes and objects

A method of programming that uses linear or event-driven execution

A type of programming that emphasizes on functions

Which of the following is an advantage and a disadvantage of Procedural Programming?

Advantage: High performance, Disadvantage: Difficult to modify

Advantage: Easy to understand, Disadvantage: Not suitable for complex systems

Advantage: Encourages code reuse, Disadvantage: Scalable

Advantage: Simple to analyze, Disadvantage: Poor data hiding

What do you understand by Object Oriented Programming?

A programming paradigm based on the concept of objects

In OOP, describe what is meant by Inheritance.

A feature that allows a class to derive properties and characteristics from another class

A programming paradigm based on the concept of objects

A method of restricting access to certain components of an object

A way to structure a program using reusable pieces of code

In OOP, describe what is meant by Encapsulation.

The process of wrapping code and data together into a single unit

A programming paradigm based on the concept of objects

A method for implementing inheritance

In OOP, what does Polymorphism and overloading refer to?

The ability to define multiple methods with the same name but different parameters

The ability of different classes to implement the same methods in various ways

The ability of a subclass to override a method from its superclass

The ability to encapsulate data and methods within a single unit

In OOP, what is meant by Data hiding?

The process of protecting an object's state by bundling the data (attributes) and the methods (functions) that manipulate the data into a single unit

A programming style where the data is not hidden and can be accessed directly

The technique of making the data elements public within a software module

In OOP, describe what is meant by Reusability.

The ability to use existing assets in some form within the software product.

The process of inheriting properties from the parent class.

The method of encapsulating data in a class.

The practice of increasing the efficiency of the code.

What is Event Driven Programming?

A programming paradigm in which the flow of the program is determined by events such as user actions, sensor outputs, or message passing.

A type of programming that executes in a linear sequence.

A method of programming that relies solely on loops.

A programming style that focuses on the use of functions.

In Event Driven Programming, what is a callback function?

A function that runs after a specific event has occurred

A function that prevents events from occurring

A loop that continuously checks for events

A data structure that stores event information

What is the primary purpose of using inheritance in Object-Oriented Programming?

To allow new objects to acquire the properties of existing objects

To provide a way for objects to communicate with each other

To enhance the security of an application

To reduce the execution time of programs

What role do classes play in Object-Oriented Programming (OOP)?

They serve as blueprints for creating objects

They define only the data component without any methods

They are used to execute functions only

They provide networking solutions

How does a Binary Search algorithm function?

It searches by repeatedly dividing the search interval in half

It searches by selecting the middle element of the array

It searches from the start to the end of the array sequentially

It rearranges the array elements before searching

Why would you translate code from one language to another? (pick 2)

Solution pre-exists in another language

More features with a different programming language

Difficult for developers to understand

Cost increase of switching to another language.

What does not describe client-side processing?

Involves operations performed on the server

Does not interact with the user interface

Involves operations performed on the client-side

BTEC Unit 1 Revision Quiz 1

Authored by Cat Wilkes

Computers

12th Grade

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50 questions

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MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is Computational thinking?

A method of problem-solving that helps computer scientists prepare problems for digital solutions

A type of software development

A hardware troubleshooting technique

A networking protocol

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What are the 4 Computational thinking skills?

Decomposition, Pattern Recognition, Abstraction, Algorithm Design

Analysis, Design, Implementation, Testing

Programming, Debugging, Analysis, Compilation

Logic, Function, Recursion, Concurrency

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The first stage of decomposition is identifying and describing problems and processes. What is the second? (Final stage)

Developing solutions

Implementing solutions

Evaluating results

Planning and designing

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which of the following are reasons why programmers use decomposition to solve problems?

To simplify complex problems into manageable parts

To increase the complexity of the code

To improve collaboration among developers

To reduce the efficiency of problem-solving

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What are the 5 stages of pattern recognition?

Signal reception, feature extraction, segmentation, matching, recognition

Data collection, processing, analysis, interpretation, feedback

Input, process, output, feedback, storage

Observation, orientation, decision, action, feedback

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Give one reason why a programmer would use pattern recognition to solve problems.

To improve code efficiency

To simplify complex problems

To enhance problem-solving skills

To reduce debugging time

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Define what is meant by abstraction.

A process of hiding the implementation details and showing only functionality.

A method of organizing data in a database.

A type of data structure.

A programming language feature for error handling.

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