You have been tasked with creating a VPC network topology for your company. The VPC network must support
both Internet-facing applications and internally-facing applications accessed only over VPN. Both Internet-facing
and internally-facing applications must be able to leverage at least three AZs for high availability. At a minimum,
how many subnets must you create within your VPC to accommodate these requirements?

You receive a Spot Instance at a bid of $0.05/hr. After 30 minutes, the Spot Price increases to $0.06/hr and
your Spot Instance is terminated by AWS. What was the total EC2 compute cost of running your Spot
Instance?

Which of the following requires a custom CloudWatch metric to monitor?

You are developing a highly available web application using stateless web servers. Which services are suitable
for storing session state data?
Choose 3 answers

You have a business-critical two-tier web app currently deployed in two AZs in a single region, using Elastic
Load Balancing and Auto Scaling. The app depends on synchronous replication (very low latency connectivity)
at the database layer. The application needs to remain fully available even if one application AZ goes off-line,
and Auto Scaling cannot launch new instances in the remaining Availability Zones. How can the current
architecture be enhanced to ensure this?

You are deploying an application on EC2 that must call AWS APIs. What method of securely passing
credentials to the application should you use?

Which route must be added to your routing table in order to allow connections to the Internet from your subnet?

A customer’s nightly EMR job processes a single 2-TB data file stored on Amazon Simple Storage Service
(S3). The EMR job runs on two On-Demand core nodes and three On-Demand task nodes. Which of the
following may help reduce the EMR job completion time?
Choose 2 answers

Which is an operational process performed by AWS for data security?

To protect S3 data from both accidental deletion and accidental overwriting, you should: