Amazon BDS-C00 Online Practice Questions and Exam Preparation

Amazon BDS-C00 Online Questions & Answers

• Question 181:

  Which of these configuration or deployment practices is a security risk for RDS?

  A. Storing SQL function code in plaintext
  B. Non-Multi-AZ RDS instance
  C. Having RDS and EC2 instances exist in the same subnet
  D. RDS in a public subnet
  D. RDS in a public subnet

• Question 182:

  Customers have recently been complaining that your web application has randomly stopped responding. During a deep dive of your logs, the team has discovered a major bug in your Java web application. This bug is causing a memory leak that eventually causes the application to crash.

  Your web application runs on Amazon EC2 and was built with AWS CloudFormation. Which techniques should you see to help detect theses problems faster, as well as help eliminate the server's unresponsiveness?

  Choose 2 answers

  A. Update your AWS CloudFormation configuration and enable a CustomResource that uses cfn- signal to detect memory leaks
  B. Update your CloudWatch metric granularity config for all Amazon EC2 memory metrics to support five-second granularity. Create a CloudWatch alarm that triggers an Amazon SNS notification to page your team when the application memory becomes too large
  C. Update your AWS CloudFormation configuration to take advantage of Auto Scaling groups. Configure an Auto Scaling group policy to trigger off your custom CloudWatch metrics
  D. Create a custom CloudWatch metric that you push your JVM memory usage to create a CloudWatch alarm that triggers an Amazon SNS notification to page your team when the application memory usage becomes too large
  E. Update your AWS CloudFormation configuration to take advantage of CloudWatch metrics Agent. Configure the CloudWatch Metrics Agent to monitor memory usage and trigger an Amazon SNS alarm
  C. Update your AWS CloudFormation configuration to take advantage of Auto Scaling groups. Configure an Auto Scaling group policy to trigger off your custom CloudWatch metrics
  D. Create a custom CloudWatch metric that you push your JVM memory usage to create a CloudWatch alarm that triggers an Amazon SNS notification to page your team when the application memory usage becomes too large

• Question 183:

  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?

  A. Load each file as it arrives because getting data into the cluster as quickly as possibly is the priority.
  B. Load the cluster as soon as the administrator has the same number of files as nodes in the cluster.
  C. Load the cluster when the administrator has an event multiple of files relative to Cluster Slice Count, or 5 minutes, whichever comes first.
  D. Load the cluster when the number of files is less than the Cluster Slice Count.
  C. Load the cluster when the administrator has an event multiple of files relative to Cluster Slice Count, or 5 minutes, whichever comes first.

• Question 184:

  A user has setup an RDS DB with Oracle. The user wants to get notifications when someone modifies the security group of that DB. How can the user configure that?

  A. It is not possible to get the notifications on a change in the security group
  B. Configure SNS to monitor security group changes
  C. Configure event notification on the DB security group
  D. Configure the CloudWatch alarm on the DB for a change in the security group
  C. Configure event notification on the DB security group

• Question 185:

  Amazon EC2 provides a repository of public data sets that can be seamlessly integrated into AWS cloud-based applications.What is the monthly charge for using the public data sets?

  A. A 1 time charge of 10$ for all the datasets.
  B. 1$ per dataset per month
  C. 10$ per month for all the datasets
  D. There is no charge for using the public data sets
  D. There is no charge for using the public data sets

• Question 186:

  An administrator needs to manage a large catalog of items from various external sellers. The administrator needs to determine if the items should be identified as minimally dangerous, dangerous, or highly dangerous based on their textual

  descriptions. The administrator already has some items with the danger attribute, but receives hundreds of new item descriptions every day without such classification.

  The administrator has a system that captures dangerous goods reports from customer support team or from user feedback.

  What is a cost-effective architecture to solve this issue?

  A. Build a set of regular expression rules that are based on the existing examples, and run them on the DynamoDB Streams as every new item description is added to the system.
  B. Build a Kinesis Streams process that captures and marks the relevant items in the dangerous goods reports using a Lambda function once more than two reports have been filed.
  C. Build a machine learning model to properly classify dangerous goods and run it on the DynamoDB Streams as every new item description is added to the system.
  D. Build a machine learning model with binary classification for dangerous goods and run it on the DynamoDB Streams as every new item description is added to the system.
  C. Build a machine learning model to properly classify dangerous goods and run it on the DynamoDB Streams as every new item description is added to the system.

• Question 187:

  A user is planning to use the AWS RDS with MySQL. Which of the below mentioned services the user is not going to pay?

  A. Data transfer
  B. RDS CloudWatch metrics
  C. Data storage
  D. I/O requests per month
  B. RDS CloudWatch metrics

• Question 188:

  A telecommunications company needs to predict customer churn (i.e., customers who decide to switch to a competitor). The company has historic records of each customer, including monthly consumption patterns, calls to customer service, and whether the customer ultimately quit the service. 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 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.
  B. 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 customers.
  C. Use EMR to run the Hive queries to build a profile of a churning customer. Apply a profile to existing customers to determine the likelihood of churn.
  D. Use a Redshift cluster to COPY the data from Amazon S3. Create a User Defined Function in Redshift that computes the likelihood of churn.
  B. 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 customers.

• Question 189:

  A user has launched an EC2 instance from an instance store backed AMI. The user has attached an additional instance store volume to the instance. The user wants to create an AMI from the running instance. Will the AMI have the additional instance store volume data?

  A. Yes, the block device mapping will have information about the additional instance store volume
  B. No, since the instance store backed AMI can have only the root volume bundled
  C. It is not possible to attach an additional instance store volume to the existing instance store backed AMI instance
  D. No, since this is ephermal storage it will not be a part of the AMI
  A. Yes, the block device mapping will have information about the additional instance store volume

• Question 190:

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

  A. No
  B. Yes
  C. Only in VPC
  D. Only in certain regions
  B. Yes