What is the buffer size set by the fw ctl zdebug command?

Question

Options

• A8GB
• B1 MB
• C1 GB
• D8 MB

• B
  92% (36)
• C
  5% (2)
• D
  3% (1)

Explanation

fw ctl zdebug is a Check Point kernel debugging command that allocates a 1 MB circular buffer to capture debug output, making option B correct. Options A (8 GB) and C (1 GB) are far too large for a kernel debug buffer and would be impractical for this purpose. Option D (8 MB) is a common distractor - it's in the right order of magnitude but still wrong; the actual value is 1 MB, not 8 MB.

Memory tip: Think "zdebug = zero overhead" - it's intentionally small (1 MB) to minimize performance impact on a live firewall. If you remember that kernel debug buffers are kept lean, you'll avoid being pulled toward the larger GB options.

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