HOT PREP DVA-C02 GUIDE FREE PDF | HIGH-QUALITY DVA-C02 REAL BRAINDUMPS: AWS CERTIFIED DEVELOPER - ASSOCIATE

Hot Prep DVA-C02 Guide Free PDF | High-quality DVA-C02 Real Braindumps: AWS Certified Developer - Associate

Hot Prep DVA-C02 Guide Free PDF | High-quality DVA-C02 Real Braindumps: AWS Certified Developer - Associate

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The DVA-C02 exam is an important certification for developers looking to validate their skills and knowledge in AWS development. It covers a wide range of topics related to AWS development, including AWS core services, developer tools, and programming languages commonly used in AWS development. By passing the DVA-C02 exam, candidates can demonstrate their ability to design, develop, and deploy cloud-based applications using AWS services and best practices, making them a valuable asset to any organization.

Amazon DVA-C02 Certification is a valuable credential for developers who want to demonstrate their proficiency in developing and maintaining applications in AWS. It is a challenging exam that tests a candidate's knowledge and skills in core AWS services and application development. Passing DVA-C02 exam can open up new job opportunities and provide a competitive advantage in today's job market.

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Amazon AWS Certified Developer - Associate Sample Questions (Q345-Q350):

NEW QUESTION # 345
A developer is working on an ecommerce website The developer wants to review server logs without logging in to each of the application servers individually. The website runs on multiple Amazon EC2 instances, is written in Python, and needs to be highly available How can the developer update the application to meet these requirements with MINIMUM changes?

  • A. Rewrite the application to be cloud native and to run on AWS Lambda, where the logs can be reviewed in Amazon CloudWatch
  • B. Install the unified Amazon CloudWatch agent on the EC2 instances Configure the agent to push the application logs to CloudWatch
  • C. Set up centralized logging by using Amazon OpenSearch Service, Logstash, and OpenSearch Dashboards
  • D. Scale down the application to one larger EC2 instance where only one instance is recording logs

Answer: B

Explanation:
Centralized Logging Benefits: Centralized logging is essential for operational visibility in scalable systems, especially those using multiple EC2 instances like our e-commerce website. CloudWatch provides this capability, along with other monitoring features.
CloudWatch Agent: This is the best way to send custom application logs from EC2 instances to CloudWatch. Here's the process:
Install the CloudWatch agent on each EC2 instance.
Configure the agent with a configuration file, specifying:
Which log files to collect.
The format in which to send logs to CloudWatch (e.g., JSON).
The specific CloudWatch Logs log group and log stream for these logs.
Viewing and Analyzing Logs: Once the agent is pushing logs, use the CloudWatch Logs console or API:
View and search the logs across all instances.
Set up alarms based on log events.
Use CloudWatch Logs Insights for sophisticated queries and analysis.
Reference:
Amazon CloudWatch Logs: https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/WhatIsCloudWatchLogs.html Unified CloudWatch Agent: https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/AgentReference.html CloudWatch Logs Insights: https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/AnalyzingLogData.html


NEW QUESTION # 346
An IAM role is attached to an Amazon EC2 instance that explicitly denies access to all Amazon S3 API actions. The EC2 instance credentials file specifies the IAM access key and secret access key, which allow full administrative access.
Given that multiple modes of IAM access are present for this EC2 instance, which of the following is correct?

  • A. The EC2 instance will be able to perform all actions on any S3 bucket.
  • B. The EC2 instance will only be able to list the contents of one S3 bucket at a time.
  • C. The EC2 instance will only be able to list the S3 buckets.
  • D. The EC2 instance will not be able to perform any S3 action on any S3 bucket.

Answer: D


NEW QUESTION # 347
A company is developing an application that will be accessed through the Amazon API Gateway REST API. Registered users should be the only ones who can access certain resources of this API. The token being used should expire automatically and needs to be refreshed periodically.
How can a developer meet these requirements?

  • A. Create an Amazon Cognito user pool, configure the Cognito Authorizer in API Gateway, and use the identity or access token.
  • B. Create and maintain a database record for each user with a corresponding token and use an AWS Lambda authorizer in API Gateway.
  • C. Create an Amazon Cognito identity pool, configure the Amazon Cognito Authorizer in API Gateway, and use the temporary credentials generated by the identity pool.
  • D. Create an IAM user for each API user, attach an invoke permissions policy to the API, and use an IAM authorizer in API Gateway.

Answer: A


NEW QUESTION # 348
A company is using the AWS Serverless Application Model (AWS SAM) to develop a social media application. A developer needs a quick way to test AWS Lambda functions locally by using test event payloads. The developer needs the structure of these test event payloads to match the actual events that AWS services create.

  • A. Create shareable test Lambda events. Use these test Lambda events for local testing.
  • B. Use the sam local generate-event command to create test payloads for local testing.
  • C. Store manually created test event payloads locally. Use the sam local invoke command with the file path to the payloads.
  • D. Store manually created test event payloads in an Amazon S3 bucket. Use the sam local invoke command with the S3 path to the payloads.

Answer: B

Explanation:
Comprehensive Detailed Step by Step Explanation with All AWS Developer Reference:
The AWS Serverless Application Model (SAM) includes features for local testing and debugging of AWS Lambda functions. One of the most efficient ways to generate test payloads that match actual AWS event structures is by using the sam local generate-event command.
sam local generate-event: This command allows developers to create pre-configured test event payloads for various AWS services (e.g., S3, API Gateway, SNS). These generated events accurately reflect the format that the service would use in a live environment, reducing the manual work required to create these events from scratch.
Operational Overhead: This approach reduces overhead since the developer does not need to manually create or maintain test events. It ensures that the structure is correct and up-to-date with the latest AWS standards.
Alternatives:
Option A suggests using shareable test events, but manually creating or sharing these events introduces more overhead.
Option B and C both involve manually storing and maintaining test events, which adds unnecessary complexity compared to using sam local generate-event.
Reference:
AWS SAM CLI documentation


NEW QUESTION # 349
A company has an application that uses Amazon Cognito user pools as an identity provider. The company must secure access to user records. The company has set up multi-factor authentication (MFA). The company also wants to send a login activity notification by email every time a user logs in.
What is the MOST operationally efficient solution that meets this requirement?

  • A. Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Add an Amazon Cognito post authentication Lambda trigger for the function.
  • B. Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Add an Amazon API Gateway API to invoke the function. Call the API from the client side when login confirmation is received.
  • C. Configure Amazon Cognito to stream all logs to Amazon Kinesis Data Firehose. Create an AWS Lambda function to process the streamed logs and to send the email notification based on the login status of each user.
  • D. Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Create an Amazon CloudWatch Logs log subscription filter to invoke the function based on the login status.

Answer: A

Explanation:
https://docs.aws.amazon.com/cognito/latest/developerguide/user-pool-lambda-post- authentication.html


NEW QUESTION # 350
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