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- Question
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
- Correct Answer
- All
ExplanationAll statements are true.
Microprocessors problems
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- 1. 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.- 2. 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.- 3. 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.- 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 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.- 6. 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.- 7. 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.- 8. Which of the following real variable names is not valid in Fortran?
Options- A. BETA
- B. ALPHA
- C. A
- D. AB * 2 Discuss
Correct Answer: AB * 2
Explanation:
Operator is not allowed.- 9. Which of the following is not a valid real constant in C?
Options- A. 426
- B. 321.0
- C. -621.231
- D. +201.2314 Discuss
Correct Answer: 426
Explanation:
Real constant must have a decimal point.- 10. Which of the following is not a valid variable name in C?
Options- A. 1 a
- B. a 1 2
- C. a b 123
- D. a b c 123 Discuss
Correct Answer: 1 a
Explanation:
First character must be alphabet.
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