| 41. | Input to Lexical Analyser is |
| a. | Source Code |
| b. | Object Code |
| c. | Lexeme |
| d. | None of the mentioned |
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Answer: (a).Source Code
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| 42. | Lexical Analysis Identifies Different Lexical Units in a _______. |
| a. | Source Code |
| b. | Object Code |
| c. | Lexeme |
| d. | None of the mentioned |
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Answer: (a).Source Code
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| 43. | Which one is a type of Lexeme ? |
| a. | Identifiers |
| b. | Constants |
| c. | Keywords |
| d. | All of the mentioned |
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Answer: (d).All of the mentioned
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| 44. | A________ is a string of characters which form a syntactic unit. |
| a. | Lexeme |
| b. | Lex |
| c. | None of the mentioned |
| d. | Both of the mentioned |
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Answer: (a).Lexeme
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| 45. | When expression sum=3+2 is tokenized then what is the token category of 3 ? |
| a. | Identifier |
| b. | Assignment operator |
| c. | Integer Literal |
| d. | Addition Operator |
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Answer: (c).Integer Literal
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| 46. | Two Important lexical categories are |
| a. | White Space |
| b. | Comments |
| c. | None of the mentioned |
| d. | Both of the mentioned |
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Answer: (d).Both of the mentioned
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| 47. | It has encoded within it information on the possible sequences of characters that can be contained within any of the tokens it handles.
Above motioned function is performed by? |
| a. | Scanner |
| b. | Parser |
| c. | Syntactic Analyser |
| d. | All of the mentioned |
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Answer: (a).Scanner
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| 48. | What goes over the characters of the lexeme to produce a value? |
| a. | Scanner |
| b. | Parser |
| c. | Evaluator |
| d. | Lexical generator |
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Answer: (a).Scanner
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| 49. | Which one is a lexer Generator ? |
| a. | ANTLR |
| b. | DRASTAR |
| c. | FLEX |
| d. | All of the mentioned |
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Answer: (d).All of the mentioned
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| 50. | Which of the lexical analyser can handle Unicode ? |
| a. | Java CC |
| b. | JFLex |
| c. | Quex |
| d. | All of the mentioned |
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Answer: (d).All of the mentioned
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