Amazon BDS-C00 Exam Questions Answers

Amazon BDS-C00 Study Questions for Exam 2026

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AWS Certified Big Data - Specialty Exam BDS-C00 Questions and Answers

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Page: 1 / 51
Total Questions: 254

Questions & Answers PDF

• Question 1

  

  An online retailer is using Amazon DynamoDB to store data relate to customer transactions. The items in the table contain several string attributes describing the transaction as well as a JSON attribute containing the shopping cart and other details corresponding to the transactions. Average item size is ~250KB, most of which is associated with the JSON attribute. The average generates ~3GB of data per month.Customers access the table to display their transaction history and review transaction details as needed. Ninety percent of queries against the table are executed when building the transaction history view, with the other 10% retrieving transaction details. The table is partitioned on CustomerID and sorted on transaction data.The client has very high read capacity provisioned for the table and experiences very even utilization, but complains about the cost of Amazon DynamoDB compared to other NoSQL solutions.Which strategy will reduce the cost associated with the client's read queries while not degrading quality?

  • Modify all database calls to use eventually consistent reads and advise customers that transaction history may be one second out-of-date.
  • Change the primary table to partition on TransactionID, create a GSI partitioned on customer and sorted on date, project small attributes into GSI and then query GSI for summary data and the primary table for JSON details.
  • Vertically partition the table, store base attributes on the primary table and create a foreign key reference to a secondary table containing the JSON data. Query the primary table for summary data and the secondary table for JSON details.
  • Create an LSI sorted on date project the JSON attribute into the index and then query the primary table for summary data and the LSI for JSON details

  Reveal Answer Answer: C Next Question

• Question 2

  

  An advertising organization uses an application to process a stream of events that are received from clients in multiple unstructured formats.The application does the following:Transforms the events into a single structured format and streams them to Amazon Kinesis for real-time analysis.Stores the unstructured raw events from the log files on local hard drivers that are rotated and uploaded to Amazon S3.The organization wants to extract campaign performance reporting using an existing Amazon redshift cluster.Which solution will provide the performance data with the LEAST number of operations?

  • Install the Amazon Kinesis Data Firehose agent on the application servers and use it to stream the log files directly to Amazon Redshift.
  • Create an external table in Amazon Redshift and point it to the S3 bucket where the unstructured raw events are stored.
  • Write an AWS Lambda function that triggers every hour to load the new log files already in S3 to Amazon redshift.
  • Connect Amazon Kinesis Data Firehose to the existing Amazon Kinesis stream and use it to stream the event directly to Amazon Redshift.

  Reveal Answer Answer: D Next Question

• Question 3

  

  An administrator is deploying Spark on Amazon EMR for two distinct use cases: machine learning algorithms and ad hoc querying. All data will be stored in Amazon S3. Two separate clusters for each use case will be deployed. The data volumes on Amazon S3 are less than 10GB.How should the administrator align instance types with the cluster's purpose?

  • Machine Learning on C instance types and ad-hoc queries on R instance types
  • Machine Learning on R instance types and ad-hoc queries on G2 instance types
  • Machine Learning on T instance types and ad-hoc queries on M instance types
  • Machine Learning on D instance types and ad-hoc queries on I instance types

  Reveal Answer Answer: A Next Question

• Question 4

  

  An organization is setting up a data catalog and metadata management environment for their numerous data stores currently running on AWS. The data catalog will be used to determine the structure and other attributes of data in the data stores. The data stores are composed of Amazon RDS databases, Amazon Redshift, and CSV files residing on Amazon S3. The catalog should be populated on a scheduled basis, and minimal administration is required to manage the catalog.How can this be accomplished?

  • Set up Amazon DynamoDB as the data catalog and run a scheduled AWS Lambda function that connects to data sources to populate the database.
  • Use an Amazon database as the data catalog and run a scheduled AWS Lambda function that connects to data sources to populate the database.
  • Use AWS Glue Data Catalog as the data catalog and schedule crawlers that connect to data sources to populate the database.
  • Set up Apache Hive metastore on an Amazon EC2 instance and run a scheduled bash script that connects to data sources to populate the metastore.

  Reveal Answer Answer: C Next Question

• Question 5

  

  You have a web application that is currently running on a collection of micro instance types in a single AZbehind a single load balancer. You have an Auto Scaling group configured to scale from 2 to 64 instances. When reviewing your CloudWatch metrics, you see that sometimes your Scaling group is running 64 micro instances. The web application is reading and writing to a DyanamoDB-configured backend and configured with 800 Write Capacity units and 800 Read Capacity units. Your customers are complaining that they are experiencing load times when viewing you website. You have investigated the DynamoDB CloudWatch metrics; you are under the provisioned read and Write Capacity units and there is no throttling.How do you scale your service to improve the load times and ensure the principles of high availability?

  • Change your Auto Scaling group configuration to include multiple AZs
  • Change you Auto Scaling group configuration to include multiple AZs, and increase the number of Read Capacity units in your DynamoDB table by a factor of three, because you will need to be calling DynamoDB from three AZs
  • Add a second load balancer to your Auto Scaling group so that you can support more inbound connections per second
  • Change your Auto Scaling group configuration to use larger instances and include multiple AZs instead of one

  Reveal Answer Answer: D Next Question

• Question 6

  

  Your customers located around the globe require low-latency access to private video files. Which configuration meets these requirements?

  • Use Amazon CloudFront with signed URLs
  • Use Amazon EC2 with provisioned IOPS Amazon EBS volumes
  • Use Amazon S3 with signed URLs
  • Use Amazon S3 with access control lists

  Reveal Answer Answer: A Next Question

• Question 7

  

  Does Amazon RDS allow direct host access via Telnet, Secure Shell (SSH), or Windows Remote Desktop Connection?

  • Yes
  • No
  • Depends on if it is in VPC or not

  Reveal Answer Answer: B Next Question

• Question 8

  

  You are managing the AWS account of a big organization. The organization has more than1000+ employees and they want to provide access to the various services to most of the employees. Which of the below mentioned options is the best possible solution in this case?

  • The user should create a separate IAM user for each employee and provide access to them as per the policy
  • The user should create an IAM role and attach STS with the role. The user should attach that role to the EC2 instance and setup AWS authentication on that server
  • The user should create IAM groups as per the organization's departments and add each user to the group for better access control
  • Attach an IAM role with the organization's authentication service to authorize each user for various AWS services

  Reveal Answer Answer: D Next Question

• Question 9

  

  A company with a support organization needs support engineers to be able to search historic cases to provide fast responses on new issues raised. The company has forwarded all support messages into an Amazon Kinesis Stream. This meets a company objective of using only managed services to reduce.The company needs an appropriate architecture that allows support engineers to search on historic cases can find similar issues and their associated responses.Which AWS Lambda action is most appropriate?

  • Ingest and index the content into an Amazon Elasticsearch domain
  • Stem and tokenize the input and store the results into Amazon ElastiCache
  • Write data as JSON into Amazon DynamoDB with primary and secondary indexes
  • Aggregate feedback is Amazon S3 using a columnar format with partitioning

  Reveal Answer Answer: A Next Question

• Question 10

  

  Does AWS Direct Connect allow you access to all Availabilities Zones within a Region?

  • Depends on the type of connection
  • No
  • Yes
  • Only when there's just one availability zone in a region. If there are more than one, only one availability zone can be accessed directly.

  Reveal Answer Answer: A Next Question

Page: 1 / 51
Total Questions: 254

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