Amazon BDS-C00 Online Practice Questions and Exam Preparation

Amazon BDS-C00 Online Questions & Answers

• Question 101:

  Is it possible to access your EBS snapshots?

  A. Yes, through the Amazon S3 APIs.
  B. Yes, through the Amazon EC2 APIs.
  C. No, EBS snapshots cannot be accessed; they can only be used to create a new EBS volume.
  D. EBS doesn't provide snapshots.
  B. Yes, through the Amazon EC2 APIs.

• Question 102:

  A web-hosting company is building a web analytics tool to capture clickstream data from all of the websites hosted within its platform and to provide near-real-time business intelligence. This entire system is built on AWS services. The web-hosting company is interested in using Amazon Kinesis to collect this data and perform sliding window analytics.

  What is the most reliable and fault-tolerant technique to get each website to send data to Amazon Kinesis with every click?

  A. After receiving a request, each web server sends it to Amazon Kinesis using the Amazon Kinesis PutRecord API. Use the sessionID as a partition key and set up a loop to retry until a success response is received.
  B. After receiving a request, each web server sends it to Amazon Kinesis using the Amazon Kinesis Producer Library .addRecords method.
  C. Each web server buffers the requests until the count reaches 500 and sends them to Amazon Kinesis using the Amazon Kinesis PutRecord API call.
  D. After receiving a request, each web server sends it to Amazon Kinesis using the Amazon Kinesis PutRecord API. Use the exponential back-off algorithm for retries until a successful response is received.
  A. After receiving a request, each web server sends it to Amazon Kinesis using the Amazon Kinesis PutRecord API. Use the sessionID as a partition key and set up a loop to retry until a success response is received.

• Question 103:

  A company needs to deploy virtual desktops to its customers in a virtual private cloud, leveraging existing security controls. Which set of AWS services and features will meet the company's requirements?

  A. Virtual private network connection, AWS Directory services, and ClassicLink
  B. Virtual private network connection, AWS Directory services, and Amazon WorkSpaces
  C. AWS Directory service, Amazon WorkSpaces, and AWS Identity and Access Management
  D. Amazon Elastic Compute Cloud, and AWS identity and access management
  B. Virtual private network connection, AWS Directory services, and Amazon WorkSpaces

• Question 104:

  An online retailer is using Amazon DynamoDB to store data related to customer transactions. The items in the table contains several string attributes describing the transaction as well as a JSON attribute containing the shopping cart and other details corresponding to the transaction. Average item size is -250KB, most of which is associated with the JSON attribute. The average customer generates -3GB of data per month.

  Customers access the table to display their transaction history and review transaction details as needed. Ninety percent of the 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 date.

  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?

  A. Modify all database calls to use eventually consistent reads and advise customers that transaction history may be one second out-of-date.
  B. 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.
  C. 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.
  D. 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.
  D. 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.

• Question 105:

  Will I be charged if the DB instance is idle?

  A. No
  B. Yes
  C. Only is running in GovCloud
  D. Only if running in VPC
  B. Yes

• Question 106:

  What does Amazon RDS stand for?

  A. Regional Data Server.
  B. Relational Database Service
  C. Regional Database Service.
  B. Relational Database Service

• Question 107:

  An online photo album app has a key design feature to support multiple screens (e.g, desktop, mobile phone, and tablet) with high-quality displays. Multiple versions of the image must be saved in different resolutions and layouts. The image-processing Java program takes an average of five seconds per upload, depending on the image size and format. Each image upload captures the following image metadata: user, album, photo label, upload timestamp. The app should support the following requirements:

  1.

  Hundreds of user image uploads per second

  2.

  Maximum image upload size of 10 MB

  3.

  Maximum image metadata size of 1 KB

  4.

  Image displayed in optimized resolution in all supported screens no later than one minute after image upload Which strategy should be used to meet these requirements?

  A. Write images and metadata to Amazon Kinesis. Use a Kinesis Client Library (KCL) application to run the image processing and save the image output to Amazon S3 and metadata to the app repository DB.
  B. Write image and metadata RDS with BLOB data type. Use AWS Data Pipeline to run the image processing and save the image output to Amazon S3 and metadata to the app repository DB.
  C. Upload image with metadata to Amazon S3, use Lambda function to run the image processing and save the images output to Amazon S3 and metadata to the app repository DB.
  D. Write image and metadata to Amazon Kinesis. Use Amazon Elastic MapReduce (EMR) with Spark Streaming to run image processing and save the images output to Amazon S3 and metadata to app repository DB.
  C. Upload image with metadata to Amazon S3, use Lambda function to run the image processing and save the images output to Amazon S3 and metadata to the app repository DB.

• Question 108:

  A user is receiving a notification from the RDS DB whenever there is a change in the DB security group. The user does not want to receive these notifications for only a month. Thus, he does not want to delete the notification. How can the user configure this?

  A. Change the Disable button for notification to "Yes" in the RDS console
  B. Set the send mail flag to false in the DB event notification console
  C. The only option is to delete the notification from the console
  D. Change the Enable button for notification to "No" in the RDS console
  D. Change the Enable button for notification to "No" in the RDS console

• Question 109:

  Which DNS name can only be resolved within Amazon EC2?

  A. Internal DNS name
  B. External DNS name
  C. Global DNS name
  D. Private DNS name
  A. Internal DNS name

• Question 110:

  What is the charge for the data transfer incurred in replicating data between your primary and standby?

  A. Same as the standard data transfer charge
  B. Double the standard data transfer charge
  C. No charge. It is free
  D. Half of the standard data transfer charge
  C. No charge. It is free