Amazon AWS-Certified-Big-Data-Specialty Actual Free Exam Questions & Community Discussion

Exam Code/Number: AWS-Certified-Big-Data-Specialty
Exam Name/Title: AWS Certified Big Data - Specialty
Certification Provider: Amazon
Corresponding Certification: AWS Certified Big Data

Exam Questions: 262
Updated On: May 27, 2026

Question #25

A telecommunications company needs to predict customer churn (i.e. customers eho decide to switch a computer). The company has historic records of each customer, including monthly consumption patterns, calls to customer service, and whether the customer ultimately quit th eservice. All of this data is stored in Amazon S3. The company needs to know which customers are likely going to churn soon so that they can win back their loyalty.
What is the optimal approach to meet these requirements?

A. Use EMR to run the Hive queries to build a profile of a churning customer. Apply the profile to existing customers to determine the likelihood of churn

B. Use the Amazon Machine Learning service to build the binary classification model based on the dataset stored in Amazon S3. The model will be used regularly to predict churn attribute for existing customers

C. Use a Redshift cluster to COPY the data from Amazon S3. Create a user Define Function in Redshift that computers the likelihood of churn

D. Use AWS QuickSight to connect it to data stored in Amazon S3 to obtain the necessary business insight. Plot the churn trend graph to extrapolate churn likelihood for existing customer

Discussion 0

Correct Answer: B Vote an answer

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Question #26

A user plans to use RDS as a managed DB platform. Which of the below mentioned features is not supported by RDS?

A. Automated backup

B. Automated software patching

C. Automated scaling to manage a higher load

D. Automated failure detection and recovery

Discussion 0

Correct Answer: C Vote an answer

Question #27

There are thousands of text files on Amazon S3. The total size of the files is 1 PB. The files contain retail order information for the past 2 years. A data engineer needs to run multiple interactive queries to manipulate the data. The data Engineer has AWS access to spin up an Amazon EMR cluster. The data Engineer needs to use an application on the cluster to process this data and return the results in interactive time frame. Which application on the cluster should be the data engineer use?

A. Apache Pig with Tachyon

B. Apache Hive

C. Presto

D. Oozie

Discussion 0

Correct Answer: C Vote an answer

Question #28

You are building a mobile app for consumers to post cat pictures online. You will be storing the images in AWS S3. You want to run the system very cheaply and simply. Which one of these options allows you to build a photo sharing application without needing to worry about scaling expensive uploads processes, authentication/authorization and so forth?

A. Use JWT or SAML compliant systems to build authorization policies. Users log in with a username and password, and are given a token they can use indefinitely to make calls against the photo infrastructure.

B. Create an AWS oAuth Service Domain ad grant public signup and access to the domain. During setup, add at least one major social media site as a trusted Identity Provider for users

C. Build the application out using AWS Cognito and web identity federation to allow users to log in using Facebook or Google Accounts. Once they are logged in, the secret token passed to that user is used to directly access resources on AWS, like AWS S3. (Amazon Cognito is a superset of the functionality provided by web identity federation. Referlink)

D. Use AWS API Gateway with a constantly rotating API Key to allow access from the client-side.
Construct a custom build of the SDK and include S3 access in it.

Discussion 0

Correct Answer: C Vote an answer

Question #29

Location of Instances are ____________

A. Regional

B. based on Availability Zone

C. Global

Discussion 0

Correct Answer: B Vote an answer

Question #30

An organization needs to design and deploy a large-scale data storage solution that will be highly durable and highly flexible with respect to the type and structure of data being stored. The data to be stored will be sent or generated from a variety of sources and must be persistently available for access and processing by multiple applications.
What is the most cost-effective technique to meet these requirements?

A. Use Amazon Simple Storage Service (S3) as the actual data storage system, coupled with appropriate tools for ingestion/acquisition of data and for subsequent processing and querying.

B. Launch an Amazon Relational Database Service (RDS), and use the enterprise grade and capacity of the Amazon Aurora Engine for storage processing and querying.

C. Use Amazon Redshift with data replication to Amazon Simple Storage Service (S3) for comprehensive durable data storage, processing and querying.

D. Deploy a long-running Amazon Elastic MapReduce (EMR) cluster with Amazon Elastic Block Store (EBS) volumes for persistent HDFS storage and appropriate Hadoop ecosystem tools for processing and querying.

Discussion 0

Correct Answer: A Vote an answer

Question #31

HTTP Query-based requests are HTTP requests that use the HTTP verb GET or POST and a Query parameter named_____________.

A. Reset

B. Action

C. Value

D. Retrieve

Discussion 0

Correct Answer: B Vote an answer

Question #32

Can I encrypt connections between my application and my DB Instance using SSL?

A. Only in certain regions

B. Only in VPC

C. Yes

D. No

Discussion 0

Correct Answer: C Vote an answer

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