One-Dimensional Array Average and Above
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Questions and Answers

What is a Java Array?

  • A data structure that cannot be accessed by its index
  • A data structure that allows indexed access to store multiple values of a specific data type (correct)
  • A data structure that can store values of different data types
  • A data structure that can only store one value of a specific data type

Which of the following is the correct way to declare an array variable in Java?

  • arrayRefVar[] double;
  • arrayRefVar int[];
  • int[] arrayRefVar; (correct)
  • double arrayRefVar[];

What does the syntax 'datatype[] arrayRefVar;' represent in Java?

  • Accessing a specific element in the array
  • Declaring an array variable (correct)
  • Initializing the array with default values
  • Creating an array of a specific size

Which of the following is a correct way to create an array in Java?

<p>double[] myList = new double[10]; (D)</p> Signup and view all the answers

What is the purpose of using arrays in Java?

<p>To provide indexed access to store multiple values of a specific data type (B)</p> Signup and view all the answers

What are arrays used for in Java?

<p>Storing multiple values of a specific data type in a single variable (D)</p> Signup and view all the answers

What is the correct way to declare, create, and initialize an array in one step?

<p>datatype[] arrayRefVar = new datatype[arraySize]; (D)</p> Signup and view all the answers

What is the purpose of the 'nums.length' expression in Java arrays?

<p>To determine the total number of elements in the array (A)</p> Signup and view all the answers

In Java arrays, how are the array indices ordered?

<p>0-based (D)</p> Signup and view all the answers

Which statement about the enhanced for loop (foreach loop) in Java is true?

<p>It was introduced in JDK 1.5 (B)</p> Signup and view all the answers

What will cause a syntax error when initializing an array using shorthand syntax in Java?

<p>Splitting declaration and creation into two statements (A)</p> Signup and view all the answers

What will be the output of the given Java code snippet?

int[] nums = new int[] { 2,4, 6,8, 10,12, 14,16, 18, 20 }; for (int i : nums) { System.out.print(i + " "); }

<p>2 4 6 8 10 12 14 16 18 20 (D)</p> Signup and view all the answers

What is the result of adding two arrays together in Java?

<p>'concatenation' of the arrays (C)</p> Signup and view all the answers

Which statement is true about accessing elements in a Java array?

<p>'arrayRefVar[index]' is used to access an element at a specific index (C)</p> Signup and view all the answers

What is the purpose of 'Random r = new Random();' in the given Java program?

<p>To initialize a random number generator (B)</p> Signup and view all the answers

What will be the output of the given Java code snippet?

int[] values = new int[5]; for (int i = 1; i < 5; i++) { values[i] = i + values[i-1]; } System.out.println(Arrays.toString(values));

<p>[0, 1, 3, 6, 10] (A)</p> Signup and view all the answers

Which memory organization method is used in the 8086 microprocessor?

<p>Segmentation (A)</p> Signup and view all the answers

What is the range of segment numbers in the 8086 microprocessor?

<p>0000 to FFFF (D)</p> Signup and view all the answers

In the 8086 microprocessor, which register stores the memory address of instructions and data?

<p>Segment Registers (D)</p> Signup and view all the answers

What is the size of a segment in the 8086 microprocessor?

<p>64K (65,536) consecutive memory bytes (A)</p> Signup and view all the answers

What are the four different types of segments in the 8086 microprocessor?

<p>Data Segment, Code Segment, Stack Segment, Extra Segment (A)</p> Signup and view all the answers

How are memory locations specified within a segment in the 8086 microprocessor?

<p>With an offset ranging from 0000 to FFFF (B)</p> Signup and view all the answers

What is the purpose of segment registers in 8086 microprocessor?

<p>To specify the base address of memory segments (D)</p> Signup and view all the answers

In 8086 microprocessor, which register is responsible for determining physical memory addresses?

<p>Data Segment (A)</p> Signup and view all the answers

What is the relationship between logical addresses and physical addresses in segmented memory addressing?

<p>Physical address is obtained by shifting the segment address 4 bits to the left and adding the offset address (A)</p> Signup and view all the answers

What is the maximum number of segments possible in 8086 microprocessor?

<p>14 (C)</p> Signup and view all the answers

In 8086 microprocessor, where are instructions always fetched from?

<p>Code Segment (D)</p> Signup and view all the answers

What is the purpose of the Stack Segment in 8086 microprocessor?

<p>To facilitate function calls and task management (A)</p> Signup and view all the answers

How is the physical address calculated in segmented memory addressing?

<p>By shifting the segment address 4 bits to the left and adding the offset address (D)</p> Signup and view all the answers

What does the Base Address in segmented memory addressing refer to?

<p>The starting address of a segment (C)</p> Signup and view all the answers

'The offset is given by the IP for the Code Segment.' - What does this statement imply about instruction fetching in 8086 microprocessor?

<p>The instruction fetching in Code Segment starts at an offset specified by IP. (B)</p> Signup and view all the answers

What role does the Data Segment register play in 8086 microprocessor?

<p>Specifying the base address of data segments. (B)</p> Signup and view all the answers

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