You try to start an EC2 instance with aws ec2 start-instances --instance-ids i-0abcdef1234567890 but get an error. Which of these is a likely cause?

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AWS - CLI

You try to start an EC2 instance with aws ec2 start-instances --instance-ids i-0abcdef1234567890 but get an error. Which of these is a likely cause?

AThe instance is in a stopped state

BThe instance ID is invalid or does not exist

CThe AWS CLI command syntax is incorrect

DThe instance is already running

Step-by-Step Solution

Solution:

Step 1: Understand possible reasons for start-instances error
An invalid or non-existent instance ID causes errors when starting.
Step 2: Evaluate other options
If the instance is already running, the command succeeds or shows no error. Syntax errors cause different messages. Stopped state is valid for starting.
Final Answer:
The instance ID is invalid or does not exist -> Option B
Quick Check:
Invalid instance ID causes start error [OK]

Quick Trick: Check instance ID validity if start fails [OK]

Common Mistakes:

Assuming already running instance causes error
Ignoring instance ID correctness
Confusing syntax errors with resource errors

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You try to start an EC2 instance with aws ec2 start-instances --instance-ids i-0abcdef1234567890 but get an error. Which of these is a likely cause?

Step 1: Understand possible reasons for start-instances error

Step 2: Evaluate other options

Final Answer:

Quick Check:

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