A Network Engineer Is Deploying an Application on an Amazon

question 43

Multiple Choice

A network engineer is deploying an application on an Amazon EC2 instance. The instance is reachable within the VPC through its private IP address and from the internet using an elastic IP address. Clients are connecting to the instance over the Internet and within the VPC, and the application needs to be identified by a single custom Fully Qualified Domain Name that is publicly resolvable -'app.example.com'. Instances within the VPC should always connect to the private IP to minimize data transfer costs. How should the engineer configure DNS to support these requirements?

• A) Use Amazon Route 53 to create a geo-based routing entry for the hostname 'app' in the DNS zone 'example.com'.
• B) Create two A record entries for 'app' in the DNS zone 'example.com' - one for the public IP and one for the private IP.
• C) Use Route 53 to create an ALIAS record to the public DNS name for the instance.
• D) Create a CNAME for 'app' in the DNS zone 'example.com' to the public DNS name for the Amazon EC2 instance.

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Definitions:

Price Ceiling

A government-imposed limit on the price charged for a product or service, intended to prevent prices from becoming too high.

Surplus

An amount of something left over when requirements have been met; in economic terms, this can refer to excess supply over demand in a market, leading to lower prices.

Shortage

A condition where there's more market demand for a product or service than what is supplied.

Equilibrium Price

The rate at which the volume of goods available meets the volume of goods sought.