Microprocessors problems
- 1. Assume that x = 5 and y = 2. Then in Java operation x + = y, the result is
Options- A. x = 7
- B. x = 2
- C. x = 3
- D. x = 2 Discuss
Correct Answer: x = 7
Explanation:
The operator + = means add and assign.
- 2. Which of the following is not a valid integer constant in C (for 16 bit)?
Options- A. 321
- B. -162
- C. -65321
- D. +1 Discuss
Correct Answer: -65321
Explanation:
The range is from - 32768 to + 32767.
- 3. Which of the following can not be used as a variable name in C?
Options- A. else
- B. coal
- C. ram
- D. vendy Discuss
Correct Answer: else
Explanation:
else is not allowed as variable name in C.
- 4. In Java it is possible to have
- An array of integers
- An array of string objects
- An array of arrays
- An array on integer and strings
Options- A. All
- B. 1, 2 and 3 only
- C. 1 and 2 only
- D. 1, 3 and 4 only Discuss
Correct Answer: 1, 2 and 3 only
Explanation:
An array on integers and strings is not possible.
- 5. Which of the following is invalid in Basic?
Options- A. A ** B + - C
- B. A ** B - C
- C. A * B - C
- D. A * B - C ** D Discuss
Correct Answer: A ** B + - C
Explanation:
Two operators cannot exist together.
- 6. Let JCOKE = 98 and LPEPSI = 42 Consider the statement
IF (JCOKE - 3 * LPEPSI) 5, 6, 7
5 JCOKE = JCOKE + 5
6 JCOKE = JCOKE + 8
7 JCOKE = JCOKE + 11
The value of JCOKE after the execution of above statement will be
Options- A. 103
- B. 106
- C. 109
- D. none of the above Discuss
Correct Answer: 103
Explanation:
Since (J COKE - 3 x L PEPSI) is negative, statement 5 is executed and the result is 98 + 5 = 103.
- 7. While selecting a memory chip the feature which should be examined is
Options- A. capacity
- B. ac characteristics
- C. dc characteristics
- D. all of the above Discuss
Correct Answer: all of the above
Explanation:
All these characteristics are important.
- 8. Read the following statements about files in Pascal
- A file is a data structure which consists of a sequence of components of the same type.
- The number of components in a file is variable.
- The components in a file can be accessed only sequentially starting from the beginning of the file.
Options- A. All
- B. 1 and 2 only
- C. 2 and 3 only
- D. 1 and 3 only Discuss
Correct Answer: All
Explanation:
All statements are true.
- 9. In a computer the instructions, data, intermediate and final results during processing are held in ALU.
Options- A. True
- B. False Discuss
Correct Answer: False
Explanation:
These are not held in ALU. Only computations are done by ALU.
- 10. Which of the following computer memories is fastest?
Options- A. Cache
- B. Primary
- C. Mass storage
- D. Off line back up Discuss
Correct Answer: Cache
Explanation:
Cache memory has a speed of about four times the speed of main memory. It is a small high speed memory.
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