Amazon BDS-C00 Exam Practice Test Instant Access

Question 1

An organization uses a custom map reduce application to build monthly reports based on many small data files in an Amazon S3 bucket. The data is submitted from various business units on a frequent but unpredictable schedule. As the dataset continues to grow, it becomes increasingly difficult to process all of the data in one day. The organization has scaled up its Amazon EMR cluster, but other optimizations could improve performance.

The organization needs to improve performance minimal changes to existing processes and applications.

What action should the organization take?

AUse Amazon S3 Event Notifications and AWS Lambda to create a quick search file index in DynamoDB.

BAdd Spark to the Amazon EMR cluster and utilize Resilient Distributed Datasets in-memory.

CUse Amazon S3 Event Notifications and AWS Lambda to index each file into an Amazon Elasticsearch Service cluster.

DSchedule a daily AWS Data Pipeline process that aggregates content into larger files using
S3DistCp.

EHave business units submit data via Amazon Kinesis Firehose to aggregate data hourly into Amazon S3.

Answer : D

https://aws.amazon.com/blogs/big-data/seven-tips-for-using-s3distcp-on-amazon-emr-to-move-data-efficiently-between-hdfs-and-amazon-s3/

Question 2

When attached to an Amazon VPC which two components provide connectivity with external networks? Choose 2 answers

AElastic IPS (EIP)

BNAT Gateway (NAT)

CInternet Gateway {IGW)

DVirtual Private Gateway (VGW)

Answer : C, D

Question 3

REST or Query requests are HTTP or HTTPS requests that use an HTTP verb (such as GET or POST) and a parameter named Action or Operation that specifies the API you are calling.

AFALSE

BTRUE

Answer : A

Question 4

You have started a new job and are reviewing your company's infrastructure on AWS You notice one web application where they have an Elastic Load Balancer (&B) in front of web instances in an Auto Scaling Group When you check the metrics for the ELB in CloudWatch you see four healthy instances in Availability Zone (AZ) A and zero in AZ B There are zero unhealthy instances.

What do you need to fix to balance the instances across AZs?

ASet the ELB to only be attached to another AZ

BMake sure Auto Scaling is configured to launch in both AZs

CMake sure your AMI is available in both AZs

DMake sure the maximum size of the Auto Scaling Group is greater than 4

Answer : B

Question 5

An organization has added a clickstream to their website to analyze traffic. The website is sending each page request with the PutRecord API call to an Amazon Kinesis stream by using the page name as the partition key. During peak spikes in website traffic, a support engineer notices many ProvisionedThroughputExcededException events in the application logs.

What should be done to resolve the issue in the MOST cost-effective way?

ACreate multiple Amazon Kinesis streams for page requests to increase the concurrency of the clickstream.

BIncrease the number of shards on the Kinesis stream to allow for more throughput to meet the peak spikes in traffic.

CModify the application to use on the Kinesis Producer Library to aggregate requests before sending them to the Kinesis stream.

DAttach more consumers to the Kinesis stream to process records in parallel, improving the performance on the stream.

Answer : B

https://aws.amazon.com/kinesis/data-streams/faqs/

Question 6

An administrator receives about 100 files per hour into Amazon S3 and will be loading the files into Amazon Redshift. Customers who analyze the data within Redshift gain significant value when they receive data as quickly as possible. The customers have agreed to a maximum loading interval of 5 minutes. Which loading approach should the administrator use to meet this objective?

ALoad each file as it arrives because getting data into the cluster as quickly as possible is the priority.

BLoad the cluster as soon as the administrator has the same number of files as nodes in the cluster.

CLoad the cluster when the administrator has an even multiple of files relative to Cluster Slice
Count, or 5 minutes whichever comes first.

DLoad the cluster when the number files is less than the Cluster Slice Count.

Answer : C

Question 7

You have an Auto Scaling group associated with an Elastic Load Balancer (ELB). You have noticed that instances launched via the Auto Scaling group are being marked unhealthy due to an ELB health check, but these unhealthy instances are not being terminated.

What do you need to do to ensure trial instances marked unhealthy by the ELB will be terminated and replaced?

AChange the thresholds set on the Auto Scaling group health check

BAdd an Elastic Load Balancing health check to your Auto Scaling group

CIncrease the value for the Health check interval set on the Elastic Load Balancer

DChange the health check set on the Elastic Load Balancer to use TCP rather than HTTP checks

Answer : B

Amazon BDS-C00 AWS Certified Big Data - Specialty Exam Practice Test