|Que.||Which of the following derivations does a top-down parser use while parsing an input string ? The input is scanned from left to right|
|b.||Leftmost derivation traced out in reverse|
|c.||Rightmost derivation traced out till reverse|
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I. A function of a linker is to combine several object modules into a single load module.
II. A function of a linker is to replace absolute references in an object module by symbolic references to locations in other modules.
I. Resolve external references among separately compiled program units.
II. Translate assembly language to machine code.
III. Relocate code and data relative to the beginning of the program.
IV. Enforce access-control restrictions on system libraries.