Question Bank

1899 approved questions from the community

Abstract classes in TypeScript can be directly instantiated using the 'new' keyword.

MEDIUM
TRUE FALSE
25s
TypeScript
by Mohamed

TypeScript supports function overloads, allowing multiple signatures for a single function implementation.

MEDIUM
TRUE FALSE
25s
TypeScript
by Mohamed

Declaring an object with 'const' in TypeScript makes the internal state of that object immutable.

MEDIUM
TRUE FALSE
25s
TypeScript
by Mohamed

What does the 'never' type represent in TypeScript?

MEDIUM
SINGLE CHOICE
45s
TypeScript
by Mohamed

What is a 'Tuple' in TypeScript?

MEDIUM
SINGLE CHOICE
40s
TypeScript
by Mohamed

In SQL, what is the 'ACID' property that ensures all operations in a transaction succeed or none at all?

MEDIUM
SINGLE CHOICE
30s
.NET
by Mohamed

Which ASP.NET Core component handles HTTP requests and responses in a pipeline?

MEDIUM
SINGLE CHOICE
40s
.NET
by Mohamed

In the async/await pattern, what happens when the 'await' keyword is encountered?

MEDIUM
SINGLE CHOICE
45s
.NET
by Mohamed

What is the primary difference between an abstract class and an interface in C#?

MEDIUM
SINGLE CHOICE
45s
.NET
by Mohamed

What is a delegate in C#?

MEDIUM
SINGLE CHOICE
40s
.NET
by Mohamed

Which type of polymorphism is achieved through method overriding in C#?

MEDIUM
SINGLE CHOICE
45s
.NET
by Mohamed

How does the two-pointer technique find the middle of a linked list in a single pass?

MEDIUM
SINGLE CHOICE
40s
Algorithms & Data Structures
by Mohamed

What are the three pointers typically used in an iterative in-place linked list reversal?

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SINGLE CHOICE
30s
Algorithms & Data Structures
by Mohamed

What is the time complexity of deleting the last node of a Singly Linked List (without a tail pointer)?

MEDIUM
SINGLE CHOICE
30s
Algorithms & Data Structures
by Mohamed

In the Quickselect algorithm, what is the expected (average) time complexity for finding the kth largest element?

MEDIUM
SINGLE CHOICE
40s
Algorithms & Data Structures
by Mohamed

Why is inserting an element at the beginning of a standard fixed-size array an O(n) operation?

MEDIUM
SINGLE CHOICE
30s
Algorithms & Data Structures
by Mohamed

Which of the following is NOT typically stored in the underlying implementation of an array slice?

MEDIUM
SINGLE CHOICE
30s
Algorithms & Data Structures
by Mohamed

What are the two common mathematical steps to rotate a 2D matrix by 90 degrees clockwise in-place?

MEDIUM
SINGLE CHOICE
40s
Algorithms & Data Structures
by Mohamed

If you use the sorting approach to find duplicates in an array, what is the best possible average time complexity assuming an efficient sorting algorithm is used?

MEDIUM
SINGLE CHOICE
45s
Algorithms & Data Structures
by Mohamed

The async pipe automatically unsubscribes from Observables when a component is destroyed, preventing memory leaks.

MEDIUM
TRUE FALSE
25s
by Mohamed
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