מבחן סוף #C

what does the static keyword imply when used in a method declaration?

The method can only be called on a static class
The method belongs to the class, rather than instances of the class
The method is automatically thread-safe
The method can change its behavior at runtime

Which loop would be most efficient when iterating through an array where the number of iterations is known beforehand?

while loop
do-while loop
for loop
foreach loop

What is recursion in computer programming?

A function that calls another function
A function that calls itself
A loop that executes indefinitely
An error caused by excessive memory usage

What will happen if you try to access an array element with an index that is out of its bounds?

The program will return null for that element
The program will automatically resize the array
An exception will be thrown
The program will return 0

Which of the following is a benefit of using object-oriented programming?

Increased code security
Faster code execution
Easier code management and maintenance
Reduced storage requirements

What is a typical characteristic of a recursive function in C#?

It always results in faster execution compared to iterative solutions.
It divides a problem into smaller, more manageable parts and calls itself for each part.
It cannot handle large input values due to memory constraints.
It must include at least two recursive calls in its body.

Which data structure would be best for implementing a printer queue scenario?

Array
Queue
Stack
List

Which loop structure is most appropriate for iterating through a collection when the index of the current element is not needed?

while loop
do-while loop
for loop
foreach loop

What is type conversion in C#?

Changing the value of a variable from one type to another incompatible type
Assigning a value of one data type to another type
The process of converting a reference type to a value type
Explicitly changing an object from one derived class to another

What is the primary use of the switch statement in C#?

To execute a single branch of commands based on multiple conditions
To interrupt the flow of execution and jump to another part of the program
To dispatch execution to different parts of code based on the value of an expression
To check for multiple conditions sequentially and execute a block of code when one is true

Which of the following is NOT true about functions in C#?

They help in reducing code redundancy
They can return more than one value at a time
They can be overloaded
They can be recursive

What is the purpose of the Length property in an array?

To determine the upper bound of an array
To measure the total amount of memory allocated to the array
To find the number of elements in the array
To resize the array

What is encapsulation?

A practice of keeping fields within a class private, then providing public methods to access them
A mechanism of basing an object or class upon another object (prototype) or class (base class)
The inclusion of multiple methods within a single class
A technique to isolate data changes and ensure data integrity

What does the String.Format() method do in C#?

Concatenates multiple strings into a single string
Changes the format of a string to uppercase
Allows the creation of a formatted string
Encodes a string into a URL format

In C# object-oriented programming, which concept involves creating a new class that is based on an existing class?

Encapsulation
Polymorphism
Inheritance
Abstraction

What does the catch block do in a try-catch statement?

It handles the exception and continues the execution of the program
It terminates the program immediately when an exception occurs
It debugs and removes exceptions in the program
It logs the exception into the system console

Which of the following accurately describes the ‘var’ keyword in C#?

It is used to declare a variable with an explicit type
It indicates that the variable can hold any type of data
It allows the declaration of a variable without specifying its type explicitly
It is used to define variables that can never change their initial values

What is an infinite loop?

A loop that executes a finite number of times
A loop where the exit condition is never true
A loop that contains unreachable code
A loop that breaks after executing once

What would likely cause a stack overflow exception in C#?

A recursive method that does not have an exit condition
Too many static variables
An excessively large number of local variables
Using integer variables instead of doubles

What is a primary advantage of using a linked list over an array?

Constant time complexity for indexing operations
Better utilization of memory due to absence of empty slots
Easier to add or remove elements without reorganization
Faster access to elements at any position

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