A User Is Trying to Connect to a Running EC2

question 412

Multiple Choice

A user is trying to connect to a running EC2 instance using SSH. However, the user gets a Host key not found error. Which of the below mentioned options is a possible reason for rejection?

• A) The user has provided the wrong user name for the OS login
• B) The instance CPU is heavily loaded
• C) The security group is not configured properly
• D) The access key to connect to the instance is wrong

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Definitions:

Centre-of-Gravity

A geographical strategy tool used in supply chain management to determine the best location for facilities by minimizing transportation costs.

Factor Rating

A quantitative decision-making technique used in operations management for evaluating alternative options or locations by assigning weights to various factors based on their importance.

Crossover Analysis

A method used to determine the point at which two different strategies result in the same cost or outcome, helping in decision-making.

Break-even Analysis

An analysis aimed at identifying the moment when income matches the expenses incurred to generate that income.