Final answer:
The code provided assigns the value 100 to the variable 'num' but does not by itself produce an output; a print statement is required for an output.
Step-by-step explanation:
The provided code snippet, `num = 100`, merely assigns the value 100 to the variable `num` without generating any output by itself. To display the value of `num` in languages like Python, a print statement like `print(num)` would be necessary. Consequently, in the absence of such a statement or additional code, it is impossible to discern any output.
The outcome of the code relies on its integration into a broader program or script. If embedded within a larger context, the output would be the number 100, assuming a subsequent print statement exists. In programming, individual lines may not inherently yield outputs; rather, their impact is contingent on their role within the overarching code structure.