| 51. | A shift-reduce parser carries out the actions specified within braces immediately after reducing with the corresponding rule of the grammar. S -> xxW[print“1”] S -> y[print“2”] W -> S2[print“3”], what is the translation of “x x x x y z z”? |
| a. | 1 1 2 3 1 |
| b. | 1 1 2 3 3 |
| c. | 2 3 1 3 1 |
| d. | 2 3 3 2 1 |
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Answer: (c).2 3 1 3 1
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| 52. | Synthesized attribute can be easily simulated by a |
| a. | LL grammar |
| b. | Ambiguous grammar |
| c. | LR grammar |
| d. | None of the above |
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Answer: (c).LR grammar
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| 53. | There exists a construct which returns a value ‘true’ if the argument subquery is: |
| a. | empty |
| b. | non-empty |
| c. | in error |
| d. | none of the above |
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Answer: (b).non-empty
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| 54. | The linker: |
| a. | is similar to interpreter |
| b. | uses source code as its input |
| c. | is required to create a load module |
| d. | none of the above |
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Answer: (c).is required to create a load module
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| 55. | A compiler that runs on one machine and produces code for a different machine is called: |
| a. | Cross compilation |
| b. | One pass compilation |
| c. | Two pass compilation |
| d. | None of the above |
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Answer: (a).Cross compilation
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| 56. | Any syntactic construct that can be described by a regular expression can also be described by a: |
| a. | Context sensitive grammar |
| b. | Non context free grammar |
| c. | Context free grammar |
| d. | None of the above |
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Answer: (c).Context free grammar
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| 57. | When a language has the capability to produce new data types, it is said to be: |
| a. | extensible |
| b. | encapsulated |
| c. | overloaded |
| d. | none of the above |
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Answer: (a).extensible
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| 58. | An assembly program contains: |
| a. | imperative and declarative statements |
| b. | imperative and assembler directives |
| c. | imperative and declarative statements as well as assembler directives |
| d. | declarative statements and assembler directives |
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Answer: (c).imperative and declarative statements as well as assembler directives
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| 59. | Which of the following are Assembler Directives? (i) EQU (ii) ORIGIN (iii) START (iv) END |
| a. | (ii), (iii) and (iv) |
| b. | (i), (iii) and (iv) |
| c. | (iii) and (iv) |
| d. | (i), (ii), (iii) and (iv) |
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Answer: (d).(i), (ii), (iii) and (iv)
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| 60. | Assembler program is: |
| a. | dependent on the operating system |
| b. | dependent on the compiler |
| c. | dependent on the hardware |
| d. | independent of the hardware |
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Answer: (c).dependent on the hardware
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