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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
Match all items in Group 1 with correct options from those given in Group 2.
| GROUP 1 | GROUP 2 |
| P. Intermediate representation | 1. Activation records |
| Q. Top-down parsing | 2. Code generation |
| R. Runtime environments | 3. Leftmost derivation |
| S. Register allocation | 4. Graph colouring |
Solution
| Group 1 | Group 2 (Match) | Explanation |
|---|---|---|
| P. Intermediate representation | → 2. Code generation | Intermediate representation (IR) is the form of code produced by the front end of a compiler and used as input to the code generation phase. |
| Q. Top-down parsing | → 3. Leftmost derivation | Top-down parsers construct a parse tree from the root using leftmost derivations. |
| R. Runtime environments | → 1. Activation records | Activation records (stack frames) are part of the runtime environment used to manage function calls and local variables. |
| S. Register allocation | → 4. Graph colouring | Register allocation is commonly implemented using graph-colouring algorithms to assign variables to CPU registers efficiently. |
✅ Final Matching:
P – 2, Q – 3, R – 1, S – 4
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