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A “link editor” is a program that:

  1. matches the parameters of the macro-definition with locations of the parameters of the macro call
  2. matches external names of one program with their location in other programs
  3. matches the parameters of subroutine definition with the location of parameters of subroutine call.
  4. acts as a link between text editor and the user
  5. acts as a link between compiler and the user program
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Link editor or (linker ) performs 

  1. external symbol resolution 
  2. relocation.

ANS: B 

Matches external names of one program with their location in other programs.

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A "link editor" is a program that:

matches external names of one program with their location in other programs

A link editor is responsible for combining multiple object files into a single executable program. It resolves references to external symbols (names) by determining their actual locations in the compiled code and creating a coherent executable.

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