Explanation:
When a Compute Engine instance fails to launch, common issues relate to the boot disk and file system.
Network-related issues (C, E) typically affect connectivity after the instance is running, not during the launch phase. Option B (SSH user) is irrelevant since SSH access is not related to the instance's ability to start.
Ultimate access to all questions.
When deploying applications on Compute Engine, if a Compute Engine instance fails to start, which two actions should you take?
A
Determine whether your file system is corrupted.
B
Access Compute Engine as a different SSH user.
C
Troubleshoot firewall rules or routes on an instance.
D
Check whether your instance boot disk is completely full.
E
Check whether network traffic to or from your instance is being dropped.
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