MCQs

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Overall MCQs for Reference

Which logical operator returns TRUE only if both conditions are TRUE?
a. OR
b. NAND
c. AND
d. NOT
Answer: c. ANDkeyskillset+2
What does the logical function ‘OR’ do?
a. Returns TRUE only if all conditions are TRUE
b. Returns TRUE if any condition is TRUE
c. Returns FALSE if all conditions are TRUE
d. Ignores all conditions
Answer: b. Returns TRUE if any condition is TRUEopensask+1
Which logical function in Python returns the opposite Boolean value?
a. AND
b. OR
c. NOT
d. XOR
Answer: c. NOTdatacamp+1
What is the output of the expression: (True and False)?
a. TRUE
b. FALSE
c. None
d. Null
Answer: b. FALSEopensask+1
Which logical function is typically used for condition-based filtering in data frames?
a. AND
b. IF
c. ELSE
d. TRUE
Answer: a. ANDsavemyexams+1
In Excel, which logical function tests multiple conditions and returns TRUE if all are TRUE?
a. OR
b. AND
c. IF
d. ALL
Answer: b. ANDgyansetu+1
Which logical operator is used for pattern matching in SQL?
a. BETWEEN
b. LIKE
c. IN
d. NOT
Answer: b. LIKEgyansetu+1
What does the logical function ‘IF’ do in Excel?
a. Adds numbers
b. Multiplies numbers
c. Returns a value based on a condition
d. Finds duplicates
Answer: c. Returns a value based on a conditionkeyskillset+1
In Python, which logical operator negates a given Boolean expression?
a. !=
b. ==
c. not
d. and
Answer: c. notdatacamp+1
Which logical operator computes TRUE only if conditions are not equal?
a. ==
b. !=
c. AND
d. OR
Answer: b. !=scribd+1
Which function allows chaining multiple logical conditions in a single line?
a. XOR
b. else
c. and
d. not
Answer: c. andopensask+1
Which logical function is used in conditional statements like ‘if’, ‘while’ in programming?
a. SUM
b. and
c. PRINT
d. MAX
Answer: b. andsavemyexams+1
Which Boolean operator gives output TRUE if at least one operand is TRUE?
a. AND
b. OR
c. NOT
d. SUM
Answer: b. ORsavemyexams+1
Which logical operator is used to reverse the logical state?
a. NOT
b. OR
c. AND
d. ELSE
Answer: a. NOTsavemyexams+1
What does the logical operator ‘XOR’ (exclusive OR) do?
a. TRUE if both are TRUE
b. TRUE if only one operand is TRUE
c. TRUE if neither is TRUE
d. FALSE always
Answer: b. TRUE if only one operand is TRUEdatacamp+1
Which logical function can compare two values for equality?
a. =
b. ==
c. >=
d. <=
Answer: b. ==scribd+1
What is the result of the logical expression (False or True)?
a. TRUE
b. FALSE
c. None
d. 0
Answer: a. TRUEopensask+1
In Boolean algebra, what is the complement of a value?
a. Its sum
b. Its opposite
c. Its multiplication
d. Its division
Answer: b. Its oppositebyjus+1
Which logical operator in SQL is used for negation?
a. NOT
b. AND
c. OR
d. IS
Answer: a. NOTtestbook+1
Logical functions return output as:
a. Only TRUE
b. Only FALSE
c. Both TRUE and FALSE
d. Numbers
Answer: c. Both TRUE and FALSEaskfilo+1
In data analytics, which logical function is used to create Boolean masks?
a. OR
b. NOT
c. AND
d. ALL
Answer: c. ANDgyansetu+1
Which Excel logical function is often paired with ‘COUNTIF’ for filtering?
a. IF
b. OR
c. SUM
d. NOT
Answer: a. IFgyansetu+1
Which logical operator in Python checks for inequality?
a. =
b. !=
c. ==
d. <=
Answer: b. !=scribd+1
In data science, which logical function can be used to minimize error in classification?
a. OR
b. IF
c. AND
d. NOT
Answer: b. IFsanfoundry+1
Which logical operator returns TRUE if both operands are FALSE?
a. OR
b. NOR
c. NAND
d. XOR
Answer: b. NORgeeksforgeeks+1
Which logical operator is used to combine multiple Boolean expressions in R?
a. &
b. +
c. *
d. /
Answer: a. &placementpreparation+1
Which function would test if two variables hold the same value?
a. ==
b. !=
c. +
d. –
Answer: a. ==scribd+1
Which function in Power BI is a logical function?
a. SUM
b. COUNT
c. IF
d. CONCATENATE
Answer: c. IFgyansetu
Which operator is used to evaluate if one value is less than another?
a. >=
b. <=
c. <
d. =
Answer: c. <scribd+1
What will (True and not False) return?
a. FALSE
b. TRUE
c. Null
d. Error
Answer: b. TRUEdatacamp+1
In JavaScript, which keyword is used for logical negation?
a. not
b. !
c. OR
d. AND
Answer: b. !opensask+1
Which logical function in Excel is used for multiple conditions branching?
a. IF
b. SUM
c. MIN
d. AVG
Answer: a. IFkeyskillset+1
Which logical operator is used to check if all conditions are FALSE?
a. NOR
b. NOT
c. AND
d. OR
Answer: a. NORgeeksforgeeks+1
Which function is used to express a conditional relationship in SQL?
a. CASE
b. COUNT
c. SUM
d. MAX
Answer: a. CASEtestbook+1
Logical functions are mainly used for:
a. Arithmetic operations
b. Conditional evaluation
c. String concatenation
d. Plotting
Answer: b. Conditional evaluationaskfilo+1
What does (True or False) and (not False) evaluate to?
a. FALSE
b. TRUE
c. Error
d. Null
Answer: b. TRUEdatacamp+1
Which logical operator is preferred for checking multiple exclusive conditions?
a. AND
b. NOT
c. XOR
d. OR
Answer: c. XORsavemyexams+1
Which logical function would return TRUE only if both operands are FALSE?
a. NOR
b. OR
c. NAND
d. AND
Answer: a. NORbyjus+1
Which operator combines conditions and returns TRUE only if all are satisfied?
a. OR
b. AND
c. NOT
d. XOR
Answer: b. ANDsavemyexams+1
Boolean logic is fundamental for:
a. Statistical modeling
b. Data visualization
c. Decision making
d. Data storage
Answer: c. Decision makingbyjus+1
In data science, masking is most often performed using which logical function?
a. OR
b. AND
c. IF
d. XOR
Answer: b. ANDplacementpreparation+1
What is the value of (0 < 1) and (1 < 2)?
a. TRUE
b. FALSE
c. Null
d. Error
Answer: a. TRUEscribd+1
Which logical operation is used to invert the value of a Boolean in Python?
a. and
b. not
c. or
d. xor
Answer: b. notopensask+1
What is the result of (True or False or False)?
a. TRUE
b. FALSE
c. Null
d. Error
Answer: a. TRUEdatacamp+1
Which logical function in R returns TRUE if any one condition is TRUE?
a. &
b. |
c. !
d. ^
Answer: b. | scribd+1
In SQL, which logical function is used to negate a condition?
a. BETWEEN
b. NOT
c. IN
d. OR
Answer: b. NOTgyansetu+1
Which logical function is essential for building decision trees?
a. OR
b. AND
c. IF
d. SUM
Answer: c. IFtestbook+1
Which logical operator makes use of truth tables?
a. AND
b. OR
c. NOT
d. All of the above
Answer: d. All of the abovesavemyexams+1
Which logical function can combine two Boolean arrays element-wise?
a. SUM
b. AND
c. MAX
d. CONCAT
Answer: b. ANDplacementpreparation+1
Which logical operator allows conditions to be mutually exclusive?
a. NOR
b. NAND
c. XOR
d. AND
Answer: c. XORdatacamp+1

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