SAP-C02 Free Practice Test

- (Exam Topic 2)
A company is deploying a distributed in-memory database on a fleet of Amazon EC2 instances. The fleet consists of a primary node and eight worker nodes. The primary node is responsible for monitoring cluster health, accepting user requests, distributing user requests to worker nodes and sending an aggregate response back to a client. Worker nodes communicate with each other to replicate data partitions.
The company requires the lowest possible networking latency to achieve maximum performance. Which solution will meet these requirements?

1. A. Launch memory optimized EC2 instances in a partition placement group
2. B. Launch compute optimized EC2 instances in a partition placement group
3. C. Launch memory optimized EC2 instances in a cluster placement group
4. D. Launch compute optimized EC2 instances in a spread placement group.

Correct Answer: B

- (Exam Topic 1)
A company wants to move a web application to AWS. The application stores session information locally on each web server, which will make auto scaling difficult As part of the migration, the application will be rewritten to decouple the session data from the web servers. The company requires low latency, scalability, and availability.
Which service will meet the requirements for storing the session information in the MOST cost-effective way?

1. A. Amazon ElastiCache with the Memcached engine
2. B. Amazon S3
3. C. Amazon RDS MySQL
4. D. Amazon ElastiCache with the Redis engine

Correct Answer: D
https://aws.amazon.com/caching/session-management/
Building real-time apps across versatile use cases like gaming, geospatial service, caching, session stores, or queuing, with advanced data structures, replication, and point-in-time snapshot support. Memcached: Building a simple, scalable caching layer for your data-intensive apps. https://aws.amazon.com/elasticache/

- (Exam Topic 2)
A company processes environmental data. The company has set up sensors to provide a continuous stream of data from different areas in a city. The data is available in JSON format.
The company wants to use an AWS solution to send the data to a database that does not require fixed schemas for storage. The data must be sent in real time.
Which solution will meet these requirements?

1. A. Use Amazon Kinesis Data Firehose to send the data to Amazon Redshift.
2. B. Use Amazon Kinesis Data Streams to send the data to Amazon DynamoDB
3. C. Use Amazon Managed Streaming for Apache Kafka {Amazon MSK) to send the data to Amazon Aurora.
4. D. Use Amazon Kinesis Data Firehose to send the data to Amazon Keyspaces (for Apache Cassandra).

Correct Answer: B

- (Exam Topic 1)
A solution architect is designing an AWS account structure for a company that consists of multiple terms. All the team will work in the same AWS Region. The company needs a VPC that is connected to the on-premises network. The company expects less than 50 Mbps of total to and from the on-premises network.
Which combination of steps will meet these requirements MOST cost-effectively? (Select TWO)

1. A. Create an AWS CloudFormation template that provisions a VPC and the required subnet
2. B. Deploy the template to each AWS account
3. C. Create an AWS CloudFormabon template that provisions a VPC and the required subnet
4. D. Deploy the template to a shared services accoun
5. E. Share the subnets by using AWS Resource Access Manager
6. F. Use AWS Transit Gateway along with an AWS Site-to-Site VPN for connectivity to the on-premises networ
7. G. Share the transit gateway by using AWS Resource Access Manager
8. H. Use AWS Site-to-Site VPN for connectivity to the on-premises network
9. I. Use AWS Direct Connect for connectivity to the on-premises network.

Correct Answer: BD

- (Exam Topic 2)
A company is using an Amazon EMR cluster to run its big data jobs The cluster's jobs are invoked by AWS
Step Functions Express Workflows that consume various Amazon Simple Queue Service (Amazon SQS) queues The workload of this solution is variable and unpredictable Amazon CloudWatch metrics show that the cluster's peak utilization is only 25% at times and that the cluster sits idle the rest of the time
A solutions architect must optimize the costs of the cluster without negatively impacting the time it takes to run the various jobs
What is the MOST cost-effective solution that meets these requirements?

1. A. Modify the EMR cluster by turning on automatic scaling of the core nodes and task nodes with a custom policy that is based on cluster utilization Purchase Reserved Instance capacity to cover the master node.
2. B. Modify the EMR cluster to use an instance fleet of Dedicated On-Demand Instances for the master node and core nodes, and to use Spot Instances for the task node
3. C. Define target capacity for each node type to cover the load.
4. D. Purchase Reserved Instances for the master node and core nodes Terminate all existing task nodes in the EMR cluster
5. E. Modify the EMR cluster to use capacity-optimized Spot Instances and a diversified task flee
6. F. Define target capacity for each node type with a mix of On-Demand Instances and Spot Instances.

Correct Answer: B