A Solutions Architect Is Developing a Multiple-Subnet VPC Architecture

question 123

Multiple Choice

A solutions architect is developing a multiple-subnet VPC architecture. The solution will consist of six subnets in two Availability Zones. The subnets are defined as public, private and dedicated for databases. Only the Amazon EC2 instances running in the private subnets should be able to access a database. Which solution meets these requirements?

• A) Create a now route table that excludes the route to the public subnets' CIDR blocks. Associate the route table to the database subnets.
• B) Create a security group that denies ingress from the security group used by instances in the public subnets. Attach the security group to an Amazon RDS DB instance.
• C) Create a security group that allows ingress from the security group used by instances in the private subnets. Attach the security group to an Amazon RDS DB instance.
• D) Create a new peering connection between the public subnets and the private subnets. Create a different peering connection between the private subnets and the database subnets.

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Definitions:

Direct Labor-Hours

The total time worked directly on the manufacturing of products.

Variable Overhead Rate Variance

The difference between the actual variable overhead incurred and the standard cost of variable overhead allocated to the production based on a predetermined rate.

Variable Overhead Efficiency Variance

Variable Overhead Efficiency Variance is the difference between the standard cost of variable overheads for the actual production and the actual variable overheads incurred, often attributed to efficiency in utilizing variable resources.

Variable Overhead

Indirect production costs that change in response to the level of production activity, such as utility costs in a manufacturing plant that vary with machine usage.