Amazon Amazon Certifications BDS-C00 Questions & Answers

• Question 11:

  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

  Correct Answer: B

• Question 12:

  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 metadata 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 image 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 image output to Amazon

  Correct Answer: D

• Question 13:

  Your company operates a website for promoters to sell tickets for entertainment events. You are using a load balancer in front of an Auto Scaling group of web server. Promotion of popular events can cause surges of websites visitors. During scaling-out at theses times, newly launched instances are unable to complete configuration quickly enough, leading to user disappointment.

  What option should you choose to improve scaling yet minimize costs? Choose 2 answers

  A. Create an AMI with the application pre-configured. Create a new Auto Scaling launch configuration using this new AMI, and configure the Auto Scaling group to launch with this AMI

  B. Use Auto Scaling pre-warming to launch instances before they are required. Configure pre- warming to use the CPU trend CloudWatch metric for the group

  C. Publish a custom CloudWatch metric from your application on the number of tickets sold, and create an Auto Scaling policy based on this

  D. Using the history of past scaling events for similar event sales to predict future scaling requirements. Use the Auto Scaling scheduled scaling feature to vary the size of the fleet

  E. Configure an Amazon S3 bucket for website hosting. Upload into the bucket an HTML holding page with its `x-amz-website-redirect-location' metadata property set to the load balancer endpoint. Configure Elastic Load Balancing to redirect to the holding page when the load on web servers is above a certain level

  Correct Answer: DE

• Question 14:

  To help you manage your Amazon EC2 instances, images, and other Amazon EC2 resources, you can assign your own metadata to each resource in the form of____________

  A. special filters

  B. functions

  C. tags

  D. wildcards

  Correct Answer: C

• Question 15:

  Can I detach the primary (eth0) network interface when the instance is running or stopped?

  A. Yes, You can.

  B. No. You cannot

  C. Depends on the state of the interface at the time

  Correct Answer: B

• Question 16:

  Do the Amazon EBS volumes persist independently from the running life of an Amazon EC2 instance?

  A. No

  B. Only if instructed to when created

  C. Yes

  Correct Answer: C

• Question 17:

  A user is running one instance for only 3 hours every day. The user wants to save some cost with the instance. Which of the below mentioned Reserved Instance categories is advised in this case?

  A. The user should not use RI; instead only go with the on-demand pricing

  B. The user should use the AWS high utilized RI

  C. The user should use the AWS medium utilized RI D. The user should use the AWS low utilized RI

  Correct Answer: A

• Question 18:

  Amazon S3 doesn't automatically give a user who creates _____ permission to perform other actions on that bucket or object.

  A. a file

  B. a bucket or object

  C. a bucket or file

  D. a object or file

  Correct Answer: B

• Question 19:

  My Read Replica appears "stuck" after a Multi-AZ failover and is unable to obtain or apply updates from the source DB Instance. What do I do?

  A. You will need to delete the Read Replica and create a new one to replace it.

  B. You will need to disassociate the DB Engine and re associate it.

  C. The instance should be deployed to Single AZ and then moved to Multi- AZ once again

  D. You will need to delete the DB Instance and create a new one to replace it.

  Correct Answer: A

• Question 20:

  A user is planning to host a mobile game on EC2 which sends notifications to active users on either high score or the addition of new features. The user should get this notification when he is online on his mobile device. Which of the below mentioned AWS services can help achieve this functionality?

  A. AWS Simple Notification Service

  B. AWS Simple Queue Service

  C. AWS Mobile Communication Service

  D. AWS Simple Email Service

  Correct Answer: A