General MCQs
1372 questions available
FILTER BY SUBTOPIC
Q761.Header and Footer are present in which category of the Insert Tab?
Correct Answer: A
In legacy layouts and some Word configurations, Header and Footer tools belong to the 'Text' and Header/Footer groups on the Insert ribbon.
Q762.Storage device that uses lasers and lights as its technology of reading and writing information is known as ______?
Correct Answer: A
Optical storage drives (like CDs, DVDs, and Blu-rays) utilize laser beams and light reflections to read and write binary pits on the disk surface.
Q763.The function is a ______ which can calculate the values given in a specific order.
Correct Answer: A
A spreadsheet function is a pre-defined built-in formula designed to calculate specific mathematical, financial, or logical operations in a predetermined order.
Q764.The man who built the first Mechanical Calculator was ______?
Correct Answer: A
In 1642, French mathematician and philosopher Blaise Pascal invented the first mechanical addition/subtraction calculator, known as the Pascaline.
Q765.An extremely small piece of silicon on which integrated circuits are implicated is called?
Correct Answer: C
A silicon chip is a small semiconductor substrate used to implement complex microelectronic integrated circuits.
Q766.A device which encodes characters by the depression of keys is known as _____?
Correct Answer: C
A computer keyboard encodes alphabetical and numeric characters into digital scan codes when its physical keys are depressed.
Q767.In CT Scan, CT stands for _____?
Correct Answer: C
CT stands for Computed Tomography. It is a medical diagnostic imaging system that captures layered cross-sectional X-ray slices.
Q768.A connected graph with n vertices and n-1 edges is always a _____?
Correct Answer: C
In graph theory, a connected acyclic graph having exactly n vertices and n-1 edges is defined as a tree.
Q769.A graph with no cycles is called a _____?
Correct Answer: B
By definition, a tree (or forest if disconnected) is an acyclic graph containing absolutely no cycles or closed loops.
Q770.Which of the following is an equivalence relation?
Correct Answer: D
An equivalence relation is a mathematical relation that is simultaneously reflexive (a~a), symmetric (a~b implies b~a), and transitive (a~b and b~c implies a~c).
Q771.Which of the following is a reflexive relation?
Correct Answer: B
A relation R on a set A is reflexive if every single element 'a' in A is related to itself, i.e., (a,a) is in R.
Q772.Which logical operator represents "AND"?
Correct Answer: D
The ampersand symbol ('&') is the standard programming representation for the logical AND operation, returning true only if both conditions are met.
Q773.Which of the following is a proposition?
Correct Answer: D
A proposition is a declarative statement that is deterministically either True or False; 'Today is Monday' is a clear proposition.
Q774.Which term is used to write an object to disk?
Correct Answer: B
Serialization is the programmatic process of converting an in-memory object's state into a byte stream to store it on disk or transmit it across a network.
Q775.Which catch block should be written first when handling multiple exceptions?
Correct Answer: C
In exception handling structures, specific subclass exception catch blocks must always be placed before general base class catch blocks to prevent shadowing.
Q776.Which keyword is used to define an exception block?
Correct Answer: C
The 'try' keyword defines an exception block, enclosing the code block that is actively monitored for runtime exceptions.
Q777.Which feature simplifies complexity by emphasizing high-level design?
Correct Answer: B
Abstraction reduces operational complexity by hiding background implementation details and exposing only high-level conceptual designs.
Q778.Feature which enables objects of different classes to respond differently to the same message?
Correct Answer: A
Polymorphism allows objects of disparate child classes to interpret and respond to the same interface or function call in their own unique ways.
Q779.Which of the following deals with protecting an object's internal data by controlling access?
Correct Answer: B
Encapsulation is the OOP practice of bundling data and methods into a single class unit, protecting internal data by using private/public access modifiers.
Q780.Which of the following is necessary condition for deadlock?
Correct Answer: D
The four necessary Coffman conditions for system deadlocks are Mutual Exclusion, Hold and Wait, No Preemption, and Circular Wait.