COMPUTER SCIENCE - AQA A LEVEL EXAM LATEST 2025 WITH QUESTIONS AND CORRECT
VERIFIED ANSWERS GRADED A+ GUARANTEED 100% PASS
Absolute Error - (ANSWER)The difference between the actual number and the nearest representable
value.
Abstract Data Type (ADT) - (ANSWER)A data type whose properties are specified independently of any
particular programming language.
Abstract data type (ADT) - (ANSWER)A data type whose properties are specified independently of any
particular programming language.
Abstraction - (ANSWER)Representation that is arrived at by removing unnecessary details.
Aggregation - (ANSWER)A type of association where the aggregated object has a weaker form of
association with the objects that it is aggregating than is the case with composition. These objects have
an existence independent of the aggregated object and can continue to exist even after the aggregated
object is disposed of.
Ajax - (ANSWER)Web technology that allows only the part of a web page that needs updating to be
fetched from the web server.
Algorithm - (ANSWER)A sequence of unambiguous instructions for solving a problem. It can be
represented as a Turing machine program.
Application programming interface (API) - (ANSWER)A layer of software that allows application
programs to call on the services of the operating system.
Association - (ANSWER)If the relationship is not inheritance or aggregation it is an association.
Asymptotic behaviour of f - (ANSWER)Behaviour of the function f(n) for very large values of n.
, COMPUTER SCIENCE - AQA A LEVEL EXAM LATEST 2025 WITH QUESTIONS AND CORRECT
VERIFIED ANSWERS GRADED A+ GUARANTEED 100% PASS
Asynchronous serial data transmission - (ANSWER)Transmission system in which the sender and receiver
have separate clocks which are not kept synchronised. Instead, the clocks are synchronised temporarily
at the start of a transmission. The arrival of data cannot be predicted by the receiver; s a start bit is used
to signal the arrival of data and to synchronise the transmitter and receiver temporarily.
Attribute - (ANSWER)A property or characteristic of an entity (databases) or an object (OOP).
Automation - (ANSWER)Turning an abstraction into a form that can be processed by a computer.
Bandwidth - (ANSWER)For a transmission medium, the range of signal frequencies it may transmit.
Base case - (ANSWER)A value that has a solution which does not involve any reference to the general
case solution.
Baseband system - (ANSWER)A system that uses a single data channel system in which the whole
bandwidth of the transmission medium is dedicated to one data channel at a time.
Basic operation - (ANSWER)The operation which contributes most to the total running time.
Baud rate - (ANSWER)The rate at which signals on a wire may change.
Behaviours - (ANSWER)The functions of the object or what the object does.
Bit rate - (ANSWER)The number of bits transmitted per second.
Broadband - (ANSWER)A multiple data channel system in which the bandwidth of the transmission
medium carries several data streams at the same time.
, COMPUTER SCIENCE - AQA A LEVEL EXAM LATEST 2025 WITH QUESTIONS AND CORRECT
VERIFIED ANSWERS GRADED A+ GUARANTEED 100% PASS
Bubble sort - (ANSWER)A sorting algorithm where during a pass, neighbouring values are compared and
swapped. Passes are made until no further swaps are needed.
Cipher text - (ANSWER)Message data after it has been encrypted.
Circular queue - (ANSWER)When the array element with the largest possible index has been used, the
next element to join the queue reuses the vacated location at the beginning of the array.
Class definition - (ANSWER)A template that can be used to create objects of that class.
Client - (ANSWER)A computer that uses the services provided by a server.
Client-server system - (ANSWER)A system in which some computers (the clients), request services
provided by other computers, the servers.
Closed path/circuit - (ANSWER)A sequence of edges that start and end at the same vertex and such that
any two successive edges in the sequence share a vertex.
Communication protocol - (ANSWER)A set of agreed signals, codes and rules to be used for data and
information exchange between computers.
Complexity of a problem - (ANSWER)Taken to be the worst case complexity of the most efficient
algorithm which solves the problem.
Composite key - (ANSWER)A combination of attributes that uniquely identifies a tuple/record.
Computational complexity - (ANSWER)A measure of how economical an algorithm is with time and
space.
VERIFIED ANSWERS GRADED A+ GUARANTEED 100% PASS
Absolute Error - (ANSWER)The difference between the actual number and the nearest representable
value.
Abstract Data Type (ADT) - (ANSWER)A data type whose properties are specified independently of any
particular programming language.
Abstract data type (ADT) - (ANSWER)A data type whose properties are specified independently of any
particular programming language.
Abstraction - (ANSWER)Representation that is arrived at by removing unnecessary details.
Aggregation - (ANSWER)A type of association where the aggregated object has a weaker form of
association with the objects that it is aggregating than is the case with composition. These objects have
an existence independent of the aggregated object and can continue to exist even after the aggregated
object is disposed of.
Ajax - (ANSWER)Web technology that allows only the part of a web page that needs updating to be
fetched from the web server.
Algorithm - (ANSWER)A sequence of unambiguous instructions for solving a problem. It can be
represented as a Turing machine program.
Application programming interface (API) - (ANSWER)A layer of software that allows application
programs to call on the services of the operating system.
Association - (ANSWER)If the relationship is not inheritance or aggregation it is an association.
Asymptotic behaviour of f - (ANSWER)Behaviour of the function f(n) for very large values of n.
, COMPUTER SCIENCE - AQA A LEVEL EXAM LATEST 2025 WITH QUESTIONS AND CORRECT
VERIFIED ANSWERS GRADED A+ GUARANTEED 100% PASS
Asynchronous serial data transmission - (ANSWER)Transmission system in which the sender and receiver
have separate clocks which are not kept synchronised. Instead, the clocks are synchronised temporarily
at the start of a transmission. The arrival of data cannot be predicted by the receiver; s a start bit is used
to signal the arrival of data and to synchronise the transmitter and receiver temporarily.
Attribute - (ANSWER)A property or characteristic of an entity (databases) or an object (OOP).
Automation - (ANSWER)Turning an abstraction into a form that can be processed by a computer.
Bandwidth - (ANSWER)For a transmission medium, the range of signal frequencies it may transmit.
Base case - (ANSWER)A value that has a solution which does not involve any reference to the general
case solution.
Baseband system - (ANSWER)A system that uses a single data channel system in which the whole
bandwidth of the transmission medium is dedicated to one data channel at a time.
Basic operation - (ANSWER)The operation which contributes most to the total running time.
Baud rate - (ANSWER)The rate at which signals on a wire may change.
Behaviours - (ANSWER)The functions of the object or what the object does.
Bit rate - (ANSWER)The number of bits transmitted per second.
Broadband - (ANSWER)A multiple data channel system in which the bandwidth of the transmission
medium carries several data streams at the same time.
, COMPUTER SCIENCE - AQA A LEVEL EXAM LATEST 2025 WITH QUESTIONS AND CORRECT
VERIFIED ANSWERS GRADED A+ GUARANTEED 100% PASS
Bubble sort - (ANSWER)A sorting algorithm where during a pass, neighbouring values are compared and
swapped. Passes are made until no further swaps are needed.
Cipher text - (ANSWER)Message data after it has been encrypted.
Circular queue - (ANSWER)When the array element with the largest possible index has been used, the
next element to join the queue reuses the vacated location at the beginning of the array.
Class definition - (ANSWER)A template that can be used to create objects of that class.
Client - (ANSWER)A computer that uses the services provided by a server.
Client-server system - (ANSWER)A system in which some computers (the clients), request services
provided by other computers, the servers.
Closed path/circuit - (ANSWER)A sequence of edges that start and end at the same vertex and such that
any two successive edges in the sequence share a vertex.
Communication protocol - (ANSWER)A set of agreed signals, codes and rules to be used for data and
information exchange between computers.
Complexity of a problem - (ANSWER)Taken to be the worst case complexity of the most efficient
algorithm which solves the problem.
Composite key - (ANSWER)A combination of attributes that uniquely identifies a tuple/record.
Computational complexity - (ANSWER)A measure of how economical an algorithm is with time and
space.
