Which statement is correct about Analog data?

represented in continuous signal

use as main focus such as logos images

consists of set of bits or pixels

Which of the following best describes decomposition?

Breaking the problem down into manageable chunks.

Removing all of the unimportant bits of a problem.

A logical way of getting from the problem to the solution.

The term popularly used to describe fixing errors in a computer program

The term popularly used to describe no errors in a computer program

The term popularly used to describe locating errors in a computer program

What is the purpose of a firewall in a computer network?

To prevent unauthorized access and protect against cyber threats

To block all incoming and outgoing network traffic

To increase network speed and performance

What is the primary purpose of a pointer in programming?

To store the memory address of a variable

To perform arithmetic operations

In the context of databases, what does ACID stand for?

Atomicity, Consistency, Isolation, Durability

Accuracy, Consistency, Integrity, Durability

Atomicity, Correctness, Integrity, Durability

Accuracy, Consistency, Isolation, Durability

Which of the following best describes the difference between a class and an object in object-oriented programming?

A class is a blueprint for creating objects, while an object is an instance of a class.

A class is an instance of an object.

An object is a blueprint for creating classes, while a class is an instance of an object.

A class and an object are the same.

Which pseudocode algorithm correctly finds the maximum value in an array of integers?

DECLARE max AS INTEGER SET max TO array[0] FOR i FROM 1 TO LENGTH(array) - 1 IF array[i] > max THEN SET max TO array[i] END IF NEXT i OUTPUT max

DECLARE min AS INTEGER SET min TO array[0] FOR i FROM 1 TO LENGTH(array) - 1 IF array[i] > min THEN SET min TO array[i] END IF NEXT i OUTPUT min

DECLARE max AS INTEGER SET max TO array[0] FOR i FROM 1 TO LENGTH(array) - 1 IF array[i] < max THEN SET max TO array[i] END IF NEXT i OUTPUT max

DECLARE max AS INTEGER SET max TO array[0] FOR i FROM 1 TO LENGTH(array) - 1 IF array[i] = max THEN SET max TO array[i] END IF NEXT i OUTPUT max

Which of the following is the correct pseudocode to define an enumerated type for the four seasons?

ENUM Season = { WINTER, SPRING, SUMMER, AUTUMN }

ENUM Season = [ WINTER, SPRING, SUMMER, AUTUMN ]

ENUM Season = { "WINTER", "SPRING", "SUMMER", "AUTUMN" }

ENUM Season = [ "WINTER", "SPRING", "SUMMER", "AUTUMN" ]

How does two’s complement representation help in performing subtraction using binary addition?

By converting subtraction into addition of a negative number.

By converting subtraction into addition of a positive number.

By adding the absolute values of the numbers.

By converting binary addition into subtraction.

What is a key benefit of using a set over a list for storing a collection of elements?

A set automatically eliminates duplicate elements.

A set allows duplicate elements.

A set maintains the order of elements.

A set allows for indexed access to elements.

In which scenario would you most likely prefer to use a pointer over a regular variable?

When dynamically allocating memory for data structures like linked lists.

When performing arithmetic operations.

When needing to store multiple values of the same type.

Which pseudocode correctly defines a function to check whether a given number is prime?

FUNCTION IsPrime(n) IF n <= 1 THEN RETURN False FOR i FROM 2 TO SQRT(n) IF n MOD i = 0 THEN RETURN False END IF NEXT i RETURN True END FUNCTION

FUNCTION IsPrime(n) IF n <= 1 THEN RETURN True FOR i FROM 2 TO n - 1 IF n MOD i = 0 THEN RETURN True END IF NEXT i RETURN False END FUNCTION

FUNCTION IsPrime(n) IF n <= 1 THEN RETURN False FOR i FROM 2 TO n - 1 IF n MOD i = 0 THEN RETURN False END IF NEXT i RETURN True END FUNCTION

FUNCTION IsPrime(n) IF n <= 1 THEN RETURN True FOR i FROM 2 TO SQRT(n) IF n MOD i = 0 THEN RETURN True END IF NEXT i RETURN False END FUNCTION

Which statement best describes inheritance in object-oriented programming?

Inheritance allows a class to inherit methods and properties from another class.

Inheritance allows an object to inherit methods and properties from another object.

Inheritance allows a method to inherit properties from another method.

Inheritance allows a variable to inherit properties from another variable.

What is the primary purpose of normalization in database design?

To reduce redundancy and improve data integrity.

To increase redundancy in the database.

To ensure that each table in the database has a unique identifier.

To increase the complexity of the database schema.

Introductory test A level cs

Authored by Ержан Ауезов

Computers

9th - 12th Grade

Used 2+ times

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42 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

63 in binary is?

111110

11110

111111

0101010

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The number 11001100 is shifted two places to the right. What is the result after the shift?

00110011

11001111

11110000

00111010

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Convert 11111100 to hex?

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the output of the program if:
Die1 = 3, Die2 = 4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What does LAN stand for?

Long Area Network

Large Access Network

Local Area Network

Large Area Network

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which type of storage is directly accessible to the CPU?

Primary

Secondary

Offline

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is a file format for video?

Motion Picture Expert Group (MPEG)

Flash (flv)

Wave format (WAV)

JAVA

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