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Total questions: 20

Worksheet time: 16mins

Name

Class

Date

You can declare an array without dimensioning its size, but the size must be determined before you can reference it.

True

False

In C# the length of an array cannot be changed. After it is instantiated with a length, dynamic resizing is not an option.

True

False

The value of price.Length is 5

True

False

With the declaration of price, price[1] refers to

2.1

2.2

2.3

2.5

To declare memory for 4 exam scores that range in value from 0 to 100, the following declaration could be made

int examScore = new examScore [3];

int[ ] examScore = new examScore[3];

int[ ] examScore = new examScore[4];

int examScore = new examScore[4];

The index is also sometimes referred to as the _______ of an array.

size

variable

subscript

value

Given an array declared to hold 100 values, the smallest index that can be use with the array is

based on what index is used when the first value is placed in the array

undetermined

One of the special properties in the array class is Length. It returns

an int representing the number of values currently stored in the array

the length of an individual element of the array

how much storage is consumed by the entire array

an int representing the size of the array was dimensioned

In an array, every element has the same

data type

subscript

memory location

all of the above

10.

What would be the correct declaration for a 2-dimensional array

int [ ] sales = new int[2,3];

int [ , , ] sales = new int [2,3];

int [ , ] sales = new int [ ];

int [ , ] sales = new int [2,3];

11.

In numerical 1 & 2 -dimensional arrays, if you don't provide values for elements what happens?

You get a run-time error

All elements default to 0

you get a compile-time error

All elements can not be used

12.

Two arrays that store related information in corresponding element positions are

analogous arrays

polymorphic arrays

relative arrays

parallel arrays

13.

Which component of the .NET (Core/5+) platform is primarily responsible for managing the execution, memory, and security of compiled C# code, including Just-In-Time (JIT) compilation?

The C# Compiler (CSC)

The Base Class Library (BCL)

The .NET Software Development Kit (SDK)

The Common Language Runtime (CLR)

14.

What is the default value of an uninitialized element in an integer array in C#?

-1

null

undefined

15.

Which of the following statements correctly initializes an array of strings in C#?

string[] names = new string[5];

string[] names = new string;

string names = new string[5];

string names[] = new string[5];

16.

In C#, how do you access the last element of an array named 'scores' with a length of 10?

scores[10]

scores[9]

scores[length]

scores[last]

17.

What is the maximum number of dimensions an array can have in C#?

No limit

18.

Which of the following correctly retrieves the first element of an array named 'data'?

data[1st]

data[0]

data[1]

data[first]

19.

In C#, what happens if you try to access an index that is out of bounds in an array?

The program crashes

You get a run-time error

It returns 0

It returns null

20.

What is the primary purpose of a WinForms application?

To create web-based applications that run in a browser.

To manage server-side logic and databases for enterprise systems

To develop cross-platform mobile applications for iOS and Android.

To build desktop applications with a graphical user interface for the Windows operating

system.

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Total questions: 20

Worksheet time: 16mins

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