You are deploying your applications on Compute Engine. One of your Compute Engine instances failed to launch. What should you do? (Choose two.)

Question

Options

• ADetermine whether your file system is corrupted.
• BAccess Compute Engine as a different SSH user.
• CTroubleshoot firewall rules or routes on an instance.
• DCheck whether your instance boot disk is completely full.
• ECheck whether network traffic to or from your instance is being dropped.

• A
  81% (17)
• B
  10% (2)
• C
  5% (1)
• E
  5% (1)

Explanation

When a Compute Engine instance fails to launch (i.e., it never successfully starts), the two most relevant causes to investigate are: (A) a corrupted file system, which prevents the OS from mounting and booting successfully, and (D) a completely full boot disk, which exhausts available space needed for the OS to write temporary files or complete the boot process - either can halt the instance before it becomes accessible. Options B (SSH user access), C (firewall/routes), and E (network traffic drops) all relate to connectivity issues with an instance that is already running, not to a failure to launch. These should be investigated if the instance is up but unreachable, not when it fails to start.

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