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web.groovymark@gmail.com
- December 17, 2024
Question 21
What is Unicode, and when was it published?
a) A coding language, 1980
b) A character encoding standard, 1991
c) A programming language, 2000
d) A data processing system, 1995
Correct Answer: b) A character encoding standard, 1991
Explanation: Unicode, published in 1991, provides a universal standard for character encoding, supporting more than 100,000 characters.
Question 22
What is pseudocode?
a) A flowchart
b) Text resembling code for easier understanding
c) A compiled program
d) An encrypted algorithm
Correct Answer: b) Text resembling code for easier understanding
Explanation: Pseudocode is a simple, informal description of what a program does, written in a way that humans can easily understand.
Question 23
What is an assignment statement?
a) Declares a function
b) Assigns a variable with a value
c) Creates an array
d) Assigns a constant
Correct Answer: b) Assigns a variable with a value
Explanation: An assignment statement is used to assign a value to a variable in programming, such as x = 5.
Question 24
What is a variable declaration?
a) Declares a constant
b) Declares a new variable’s name and type
c) Declares a function
d) Declares a loop
Correct Answer: b) Declares a new variable's name and type
Explanation: A variable declaration specifies the type and name of a variable, telling the compiler to reserve memory for it.
Question 25
What is an identifier in programming?
a) A keyword in the code
b) A name created by a programmer for variables or functions
c) A reserved word
d) A loop structure
Correct Answer: b) A name created by a programmer for variables or functions
Explanation: An identifier is a unique name created by the programmer for variables, functions, or classes in a program.
Question 26
What is a reserved word (or keyword)?
a) A user-defined function name
b) A word that is part of the programming language
c) A variable name
d) A library function
Correct Answer: b) A word that is part of the programming language
Explanation: Reserved words, or keywords, are predefined in a programming language and cannot be used as variable names or identifiers.
Question 27
What is a naming convention in programming?
a) A rule for writing comments
b) A set of style guidelines for naming variables
c) A method to name functions
d) A procedure to declare variables
Correct Answer: b) A set of style guidelines for naming variables
Explanation: A naming convention is a set of rules that defines how to name variables, functions, or classes in a program.
Question 28
What is an expression in programming?
a) A statement that declares a variable
b) A combination of variables, literals, operators, and parentheses
c) A function call
d) A comment
Correct Answer: b) A combination of variables, literals, operators, and parentheses
Explanation: An expression in programming combines variables, constants, and operators to evaluate to a value.
Question 29
What is a literal in programming?
a) A data type
b) A specific value in code
c) A reserved word
d) A comment
Correct Answer: b) A specific value in code
Explanation: A literal is a fixed value written directly in the code, such as a number or string.
Question 30
What is an operator in programming?
a) A person who writes code
b) A symbol that performs a calculation
c) A function name
d) A variable type
Correct Answer: b) A symbol that performs a calculation
Explanation: An operator is a symbol used in programming to perform calculations or operations on data, such as + for additio
Question 31
What is the order of precedence for arithmetic operators?
a) + – * / %
b) * / % + –
c) ( ) * / + –
d) + – % * /
Correct Answer: b) * / % + -
Explanation: The order of precedence dictates that multiplication, division, and modulus operators have higher precedence over addition and subtraction.
Question 32
What is incremental development?
a) Writing the entire program before testing
b) Writing, compiling, and testing small amounts of code incrementally
c) Writing without testing
d) Writing programs in a single session
Correct Answer: b) Writing, compiling, and testing small amounts of code incrementally
Explanation: Incremental development is the process of writing and testing a small portion of code before moving on to the next portion.
Question 33
What is a floating-point number?
a) A real number like 98.6 or -5.5
b) A whole number like 10
c) A string value
d) A special character
Correct Answer: a) A real number like 98.6 or -5.5
Explanation: A floating-point number is a number that has a decimal point, allowing it to represent fractional values.
Question 34
What is a floating-point literal?
a) A function that handles decimals
b) A number with a fractional part, even if that fraction is 0
c) A variable that can store decimal values
d) A string
Correct Answer: b) A number with a fractional part, even if that fraction is 0
Explanation: A floating-point literal is a numeric value that includes a decimal point, such as 3.0 or 0.5.
Question 35
What is the result of 12.0 / 0.0 in programming?
a) Zero
b) Positive infinity
c) Error
d) Negative infinity
Correct Answer: b) Positive infinity
Explanation: Dividing a non-zero floating-point number by 0 results in positive infinity.
Question 36
What is the result of 0.0 / 0.0 in programming?
a) Positive infinity
b) Zero
c) NaN (Not a Number)
d) Error
Correct Answer: c) NaN (Not a Number)
Explanation: Dividing 0.0 by 0.0 results in an undefined value, known as NaN (Not a Number).
Question 37
What is a function in programming?
a) A comment added to code
b) A list of statements executed by invoking the function’s name
c) A variable declaration
d) An error handling routine
Correct Answer: b) A list of statements executed by invoking the function's name
Explanation: A function is a block of organized, reusable code that performs a specific task when called.
Question 38
Which function returns the square root of x?
a) SquareRoot(x)
b) RaiseToPower(x, 2)
c) AbsoluteValue(x)
d) RandomNumber(x)
Correct Answer: a) SquareRoot(x)
Explanation: The function SquareRoot(x) returns the square root of a given number x.
Question 39
How do you calculate the power of 4²?
a) 4 * 2
b) 4 + 4
c) 4 * 4
d) 4 – 4
Correct Answer: c) 4 * 4
Explanation: To calculate the power of 4², you multiply 4 by itself, which equals 16.
Question 40
What does the SeedRandomNumber function do?
a) Initializes an array
b) Generates a list of random numbers
c) Seeds the random number generator
d) Restarts the program
Correct Answer: c) Seeds the random number generator
Explanation: SeedRandomNumber is used to seed the random number generator, ensuring the same sequence of random numbers is generated each time.
