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];</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</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</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];</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</p> Signup and view all the answers

    In Java arrays, how are the array indices ordered?

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

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

    <p>'concatenation' of the arrays</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</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</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]</p> Signup and view all the answers

    Which memory organization method is used in the 8086 microprocessor?

    <p>Segmentation</p> Signup and view all the answers

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

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

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

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

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

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

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

    <p>14</p> Signup and view all the answers

    In 8086 microprocessor, where are instructions always fetched from?

    <p>Code Segment</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</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</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</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.</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.</p> Signup and view all the answers

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