| 41. | Which of the following command the file names in multiple columns? |
| a. | IS–X |
| b. | IS |
| c. | IS–1 |
| d. | IS–f–X |
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Answer: (b).IS
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| 42. | In an absolute loading scheme, which loader function is accomplished by a loader? |
| a. | Re-allocation |
| b. | Allocation |
| c. | Linking |
| d. | Loading |
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|
Answer: (d).Loading
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| 43. | Which of the following expression is represented by the parse tree?
 |
| a. | (A + B) * C |
| b. | A + * BC |
| c. | A + B * C |
| d. | A * C + B |
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|
Answer: (a).(A + B) * C
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| 44. | Consider the following left associative operators in decreasing order of precedence: – subtraction (highest precedence) * multiplication $ exponentiation (lowest precedence) What is the result of the following expression? 3 – 2 * 4 $ | * 2**3 |
| a. | – 61 |
| b. | 64 |
| c. | 512 |
| d. | 4096 |
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Answer: (d).4096
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| 45. | Which of the following is the most general phase structured grammar? |
| a. | Regular |
| b. | Context-sensitive |
| c. | Context free |
| d. | None of the above |
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Answer: (b).Context-sensitive
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| 46. | Which of the following is used for grouping of characters into tokens (in a computer)? |
| a. | A parser |
| b. | Code optimizer |
| c. | Code generator |
| d. | Scanner |
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Answer: (d).Scanner
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| 47. | P: “Program is a step by step execution of the instructions”. Given P, which of the following is true? |
| a. | Program is a subset of an instruction set. |
| b. | Program is a sequence of a subset of an instruction set. |
| c. | Program is a partially ordered set of an instruction set. |
| d. | All of the above |
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|
Answer: (b).Program is a sequence of a subset of an instruction set.
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| 48. | In a MIU puzzle, either of the letters M, I or U could go as a start symbol. Production rules are given below : R1 : U→IU R2 : M.x→M.x.x where ːˑ is string concatenation operator. Given this, which of the following holds for (i) MIUIUIUIUIU (ii) MIUIUIUIUIUIUIUIU |
| a. | Either (i) or (ii) but not both of these are valid words. |
| b. | Both (i) and (ii) are valid words and they take identical number of transformations for the production. |
| c. | Both (i) and (ii) are valid words but they involve different number of transformations in the production. |
| d. | None of these |
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Answer: (c).Both (i) and (ii) are valid words but they involve different number of transformations in the production.
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| 49. | Recursive functions are executed in a |
| a. | First in first out-order |
| b. | Last in first out-order |
| c. | Parallel fashion |
| d. | Load balancing |
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Answer: (b).Last in first out-order
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| 50. | In an absolute loading scheme which loader function is accomplished by assembler? |
| a. | re-allocation |
| b. | allocation |
| c. | linking |
| d. | loading |
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|
Answer: (a).re-allocation
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