A Company Has Created a Multi-Tier Application for Its Ecommerce

question 384

Multiple Choice

A company has created a multi-tier application for its ecommerce website. The website uses an Application Load Balancer that resides in the public subnets, a web tier in the public subnets, and a MySQL cluster hosted on Amazon EC2 instances in the private subnets. The MySQL database needs to retrieve product catalog and pricing information that is hosted on the internet by a third-party provider. A solutions architect must devices a strategy that maximizes security without increasing operational overhead. What should the solutions architect do to meet these requirements?

• A) Deploy a NAT instance in the VPC. Route all the internet-based traffic through the NAT instance.
• B) Deploy a NAT gateway in the public subnets. Modify the private subnet route table to direct all internet-bound traffic to the NAT gateway.
• C) Configure an internet gateway and attach it to the VPC. Modify the private subnet route table to direct internet-bound traffic to the internet gateway.
• D) Configure a virtual private gateway and attach it to the VPC. Modify the private subnet route table to direct internet-bound traffic to the virtual private gateway.

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Definitions:

Substitution Effect

The economic principle that as prices rise or income decreases, consumers replace more expensive items with less costly alternatives.

Normal Goods

Goods for which demand increases as consumer income rises, and decreases when consumer income falls.

Interest Rate

The cost of borrowing money or the return on investment, expressed as a percentage, charged by lenders to borrowers for the use of their money.

Substitution Effect

The change in demand for a good or service caused by a change in its price, making consumers replace it with a cheaper alternative.