Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

On a production Linux server, a Python 3.12 script that parses a multi-gigabyte log file is repeatedly killed by the OOM killer. A simplified version of the offending function is:

def load_logs(path):
    with open(path) as f:
        return [line.strip() for line in f]

The rest of the program processes each line only once and never needs the whole list in memory. Which modification will most directly prevent the excessive memory usage while keeping the code idiomatic and easy to maintain?

  • Rewrite the function as a generator:

    def load_logs(path):
    with open(path) as f:
        for line in f:
            yield line.strip()

  • Keep the function as is but slice the list into 1 000-line chunks before processing.

  • Add import gc and call gc.collect() immediately after process(logs) to force garbage collection.

  • Open the file in binary mode to reduce per-line memory: with open(path, 'rb') as f:

CompTIA Linux+ XK0-006 (V8)
Automation, Orchestration, and Scripting
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