Ace AWS Solutions Architect Associate - SAA-C02 Dumps With Actual Question Answers

 

SAA-C02 Exam:

 

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WHAT IS SAA-CO2 Exam?

 

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•             AWS security features and tools

•             Roles of building the AWZ cloud

•             AWS infrastructure

•             Architecturally build secure apps

•             Deployment and management in AWS

•             One year of experience in a budget effective system in AWS

•             Networking experience in storage and database

 

These are some requirements for entering that course which is accessible for everyone.

 

 

THE EXAM FORMAT:

 

In the exam of SAA-C02 you have to answer 65 questions in 130 minutes, that is not so hard to complete you just have the trick then it’s easy to finish before time, the pattern of the exam set as in,

 

•             Multiple choices.

•             Multiple selections in which you have to choose two or three correct answers from almost five options.

•             Short questions.

For successful passing, the exam 720 marks have to win from the 1000 points.

 

 

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Overview Questions:

 

Question: 1

 

A solutions architect has created a new AWS account and must secure AWS account root user access. Which combination of actions will accomplish this? (Select TWO.)

 

A. Ensure the root user uses a strong password

B. Enable multi-factor authentication to the root user

C. Store root user access keys in an encrypted Amazon S3 bucket

D. Add the root user to a group containing administrative permissions.

E. Apply the required permissions to the root user with an inline policy document

 

Answer: A, B

 

 

Explanation:

 

AWS requires that your password meet these conditions: have a minimum of 8 characters and a maximum of 128 characters included a minimum of three of the following mix of character types: uppercase, lowercase, numbers, and! @ # $ % ^ & * () <> [] {} | _+-= symbols not be identical to your AWS account name or email address Enable MFA on the AWS Account Root User If you continue to use the root user credentials, we recommend that you follow the security best practice to enable multi-factor authentication (MFA) for your account. Because your root user can perform sensitive operations in your account, adding an additional layer of authentication helps you to better secure your account. Multiple types of MFA are available

 

https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_passwords_change-root.html

https://docs.aws.amazon.com/IAM/latest/UserGuide/id_root-user.html

 

 

Question: 2

 

A company's application runs on Amazon EC2 instances behind an Application Load Balancer (ALB) The instances run in an Amazon EC2 Auto Scaling group across multiple Availability Zones On the first day of every month at midnight the application becomes much slower when the month-end financial calculation batch executes This causes the CPU utilization of the EC2 instances to immediately peak to 100%. which disrupts the application What should a solutions architect recommend to ensure the application is able to handle the workload and avoid downtime?

 

A. Configure an Amazon Cloud Front distribution in front of the ALB

Questions & Answers PDF Page 3

B. Configure an EC2 Auto Scaling simple scaling policy based on CPU utilization

C. Configure an EC2 Auto Scaling scheduled scaling policy based on the monthly schedule.

D. Configure Amazon Elastic ache to remove some of the workload from the EC2 instances

 

Answer: C

 

Explanation:

 

Scheduled Scaling for Amazon EC2 Auto Scaling Scheduled scaling allows you to set your own scaling schedule. For example, let's say that every week the traffic to your web application starts to increase on Wednesday, remains high on Thursday, and starts to decrease on Friday. You can plan your scaling actions based on the predictable traffic patterns of your web application. Scaling actions are performed automatically as a function of time and date.

 

https://docs.aws.amazon.com/autoscaling/ec2/userguide/schedule_time.html

 

 

Question: 3

 

A company is migrating from an on-premises infrastructure to the AWS Cloud One of the company's applications stores files on a Windows file server farm that uses Distributed File System Replication (DFSR) to keep data in sync A solutions architect needs to replace the file server farm Which service should the solutions architect use?

 

A. Amazon EFS

B. Amazon FSx

C. Amazon S3

D. AWS Storage Gateway

 

Answer: B

 

Explanation:

 

Migrating Existing Files to Amazon FSx for Windows File Server Using AWS Data Sync We recommend using AWS Data Sync to transfer data between Amazon FSx for Windows File Server file systems. DataSync is a data transfer service that simplifies, automates, and accelerates moving and replicating data between on-premises storage systems and other AWS storage services over the internet or AWS Direct Connect. DataSync can transfer your file system data and metadata, such as ownership, time stamps, and access permissions.

 

Reference:

 

https://docs.aws.amazon.com/fsx/latest/WindowsGuide/migrate-files-to-fsx-datasync.html

 

 

Question: 4

A company's website is used to sell products to the public The site runs on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer (ALB) There is also an Amazon CloudFront distribution and AWS WAF is being used to protect against SQL injection attacks The ALB is the origin for the Cloud Front distribution A recent review of security logs revealed an external malicious IP that needs to be blocked from accessing the website What should a solutions architect do to protect the application?

 

A. Modify the network ACL on the Cloud Front distribution to add a deny rule for the malicious IP address

B. Modify the configuration of AWS WAF to add an IP match condition to block the malicious IP address

C. Modify the network ACL for the EC2 instances in the target groups behind the ALB to deny the malicious IP address

D. Modify the security groups for the EC2 instances in the target groups behind the ALB to deny the malicious IP address

 

Answer: B

 

Explanation:

 

Reference:

 

https://aws.amazon.com/blogs/aws/aws-web-application-firewall-waf-for-application-loadbalancers/

https://docs.aws.amazon.com/waf/latest/developerguide/classic-web-acl-ip-conditions.html

 

If you want to allow or block web requests based on the IP addresses that the requests originate from, create one or more IP match conditions. An IP match condition lists up to 10,000 IP addresses or IP address ranges that your requests originate from. Later in the process, when you create a web ACL, you specify whether to allow or block requests from those IP addresses. AWS Web Application Firewall (WAF) – Helps to protect your web applications from common application-layer exploits that can affect availability or consume excessive resources. As you can see in my post (New – AWS WAF), WAF allows you to use access control lists (ACLs), rules, and conditions that define acceptable or unacceptable requests or IP addresses. You can selectively allow or deny access to specific parts of your web application and you can also guard against various SQL injection attacks. We launched WAF with support for Amazon Cloud Front.

 

https://docs.aws.amazon.com/waf/latest/developerguide/classic-web-acl-ip-conditions.html

https://aws.amazon.com/blogs/aws/aws-web-application-firewall-waf-for-application-load-balancers/

 

 

Question: 5

A marketing company is storing CSV files in an Amazon S3 bucket for statistical analysis An application on an Amazon EC2 instance needs permission to efficiently process the CSV data stored in the S3 bucket. Which action will MOST securely grant the EC2 instance access to the S3 bucket?

 

A. Attach a resource-based policy to the S3 bucket

B. Create an 1AM user for the application with specific permissions to the S3 bucket

C. Associate an 1AM role with least privilege permissions to the EC2 instance profile

D. Store AWS credentials directly on the EC2 instance for applications on the instance to use for API calls

 

Answer: C

 

 

Question: 6

A solutions architect is designing a solution where users will De directed to a backup static error page it the primary website is unavailable The primary website's DNS records are hosted in Amazon Route 53 where their domain is pointing to an Application Load Balancer (ALB) Questions & Answers PDF Page 5 Which configuration should the solutions architect use to meet the company's needs while minimizing changes and infrastructure overhead?

 

A. Point a Route 53 alias record to an Amazon CloudFront distribution with the ALB as one of its origins then, create custom error pages for the distribution

B. Set up a Route 53 active-passive failover configuration Direct traffic to a static error page hosted within an Amazon S3 bucket when Route 53 health checks determine that the ALB endpoint is unhealthy

C. Update the Route 53 record to use a latency-based routing policy Add the backup static error page hosted within an Amazon S3 bucket to the record so the traffic is sent to the most responsive endpoints

D. Set up a Route 53 active-active configuration with the ALB and an Amazon EC2 instance hosting a static error page as endpoints Route 53 will only send requests to the instance if the health checks fail for the ALB

 

Answer: B

 

Explanation:

 

Active-passive failover Use an active-passive failover configuration when you want a primary resource or group of resources to be available the majority of the time and you want a secondary resource or group of resources to be on standby in case all the primary resources become unavailable. When responding to queries, Route 53 includes only the healthy primary resources. If all the primary resources are unhealthy, Route 53 begins to include only the healthy secondary resources in response to DNS queries. To create an active-passive failover configuration with one primary record and one secondary record, you just create the records and specify Failover for the routing policy. When the primary resource is healthy,

 

Route 53 responds to DNS queries using the primary record. When the primary resource is unhealthy,

Route 53 responds to DNS queries using the secondary record.

How Amazon Route 53 averts cascading failures. As a first defense against cascading failures, each request routing algorithm (such as weighted and failover) has a mode of last resort. In this special mode, when all records are considered unhealthy, the

Route 53 algorithm reverts to considering all records healthy.

 

For example, if all instances of an application, on several hosts, are rejecting health check requests,

Route 53 DNS servers will choose an answer anyway and return it rather than returning no DNS answer or returning an NXDOMAIN (non-existent domain) response. An application can respond to users but still fail health checks, so this provides some protection against misconfiguration. Similarly, if an application is overloaded, and one out of three endpoints fails its health checks, so that it's excluded from Route 53 DNS responses, Route 53 distributes responses between the two remaining endpoints. If the remaining endpoints are unable to handle the additional load and they fail, Route 53 reverts to distributing requests to all three endpoints.

 

https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-types.html

https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-problems.html

 

 

Question: 7

 

A solutions architect is designing the cloud architecture for a new application being deployed on AWS The process should run in parallel while adding and removing application nodes as needed based on the number of jobs to be processed The processor application is stateless The solutions architect must ensure that the application is loosely coupled and the job items are durably stored Which design should the solutions architect use?

 

A. Create an Amazon SNS topic to send the jobs that need to be processed Create an Amazon Machine Image (AMI) that consists of the processor application Create a launch configuration that uses the AMI Create an Auto Scaling group using the launch configuration Set the scaling policy for the Auto Scaling group to add and remove nodes based on CPU usage

B. Create an Amazon SQS queue to hold the jobs that need to be processed Create an Amazon Machine Image (AMI) that consists of the processor application Create a launch configuration that uses the AMI Create an Auto Scaling group using the launch configuration Set the scaling policy for the Auto Scaling group to add and remove nodes based on network usage

C. Create an Amazon SQS queue to hold the jobs that needs to be processed Create an Amazon Machine Image (AMI) that consists of the processor application Create a launch template that uses the AMI Create an Auto Scaling group using the launch template Set the scaling policy for the Auto Scaling group to add and remove nodes based on the number of items in the SQS queue

D. Create an Amazon SNS topic to send the jobs that need to be processed Create an Amazon Machine Image (AMI) that consists of the processor application Create a launch template that uses the AMI Create an Auto Scaling group using the launch template Set the scaling policy for the Auto Scaling group to add and remove nodes based on the number of messages published to the SNS topic.

 

Answer: C

 

Explanation:

 

Amazon Simple Queue Service Amazon Simple Queue Service (SQS) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications. SQS eliminates the complexity and overhead associated with managing and operating message oriented middleware, and

empowers developers to focus on differentiating work. Using SQS, you can send, store, and receive messages between software components at any volume, without losing messages or requiring other services to be available. Get started with SQS in minutes using the AWS console, Command Line Interface or SDK of your choice, and three simple commands.

SQS offers two types of message queues. Standard queues offer maximum throughput, best-effort ordering, and at-least-once delivery. SQS FIFO queues are designed to guarantee that messages are processed exactly once, in the exact order that they are sent. Scaling Based on Amazon SQS

There are some scenarios where you might think about scaling in response to activity in an Amazon SQS queue. For example, suppose that you have a web app that lets users upload images and use them online. In this scenario, each image requires resizing and encoding before it can be published. The app runs on EC2 instances in an Auto Scaling group, and it's configured to handle your typical upload rates. Unhealthy instances are terminated and replaced to maintain current instance levels at all times. The

app places the raw bitmap data of the images in an SQS queue for processing. It processes the images and then publishes the processed images where they can be viewed by users. The architecture for this scenario works well if the number of image uploads doesn't vary over time. But if the number of uploads changes over time, you might consider using dynamic scaling to scale the capacity of your Auto Scaling group.

 

https://aws.amazon.com/sqs/#:~:text=Amazon%20SQS%20leverages%20the%20AWS,queues%20provid e%20nearly%20unlimited%20throughput

https://docs.aws.amazon.com/autoscaling/ec2/userguide/as-using-sqs-queue.html

 

 

Question: 8

 

A company has a legacy application that processes data in two parts the second part of the process takes longer than the first, so the company has decided to rewrite the application as two micro services running on Amazon ECS that can scale independently. How should a solutions architect integrate the micro services?

 

A. Implement code in micro service 1 to send data to an Amazon S3 bucket. Use S3 event notifications to invoke micro service 2.

B. Implement code in micro service 1 to publish data to an Amazon SNS topic Implement code in microservice 2 to subscribe to this topic

C. Implement code in micro service 1 to send data to Amazon Kinesis Data Firehouse. Implement code in micro service 2 to read from Kinesis Data Firehouse.

D. Implement code in micro service 1 to send data to an Amazon SQS queue Implement code in microservice 2 to process messages from the queue

 

Answer: D

 

Explanation:

 

Orchestrate Queue-based Microservices

In this tutorial, you will learn how to use AWS Step Functions and Amazon SQS to design and run a serverless workflow that orchestrates a message queue-based micro service. Step Functions is a serverless orchestration service that lets you easily coordinate multiple AWS services into flexible workflows that are easy to debug and easy to change. Amazon SQS is the AWS service that allows application components to communicate in the cloud. This tutorial will simulate inventory verification requests from incoming orders in an e-commerce application as part of an order processing workflow. Step Functions will send inventory verification requests to a queue on SQS. An AWS Lambda function will act as your inventory micro service that uses a queue to buffer requests. When it retrieves a request, it will check inventory and then return the result to Step Functions. When a task in Step Functions is configured this way, it is called a callback pattern. Callback patterns allow you to integrate asynchronous tasks in your workflow, such as the inventory verification microservice of this tutorial.

 

https://aws.amazon.com/getting-started/hands-on/orchestrate-microservices-with-message-queues-on-step-functions/

 

 

Question: 9

 

A solutions architect at an ecommerce company wants to back up application log data to Amazon S3 The solutions architect is unsure how frequently the logs will be accessed or which logs will be accessed the most The company wants to keep costs as low as possible by using the appropriate S3 storage class. Which S3 storage class should be implemented to meet these requirements?

 

A. S3 Glacier

B. S3 Intelligent-Tiring

C. S3 Standard-Infrequent Access (S3 Standard-IA)

D. S3 One Zone-Infrequent Access (S3 One Zone-IA)

 

Answer: B

 

Explanation:

 

S3 Intelligent-Tiering

S3 Intelligent-Tiering is a new Amazon S3 storage class designed for customers who want to optimize storage costs automatically when data access patterns change, without performance impact or operational overhead. S3 Intelligent-Tiering is the first cloud object storage class that delivers automatic cost savings by moving data between two access tiers — frequent access and infrequent access — when access patterns change, and is ideal for data with unknown or changing access patterns. S3 Intelligent-Tiering stores objects in two access tiers: one tier that is optimized for frequent access and another lower-cost tier that is optimized for infrequent access. For a small monthly monitoring and

automation fee per object, S3 Intelligent-Tiering monitors access patterns and moves objects that have not been accessed for 30 consecutive days to the infrequent access tier.

There are no retrieval fees in S3

Intelligent-Tiering. If an object in the infrequent access tier is accessed later, it is automatically moved back to the frequent access tier. No additional tiering fees apply when objects are moved between access tiers within the S3 Intelligent-Tiering storage class. S3 Intelligent-Tiering is designed for 99.9% availability and 99.999999999% durability, and offers the same low latency and high throughput performance of S3 Standard.

 

https://aws.amazon.com/about-aws/whats-new/2018/11/s3-intelligent-tiering/

 

 

Question: 10

 

A security team wants to limit access to specific services or actions in all of the team's AWS accounts. All accounts belong to a large organization in AWS Organizations The solution must be scalable and there must be a single point where permissions can be maintained. What should a solutions architect do to accomplish this?

 

A. Create an ACL to provide access to the services or actions.

B. Create a security group to allow accounts and attach it to user groups

C. Create cross-account roles in each account to deny access to the services or actions.

D. Create a service control policy in the root organizational unit to deny access to the services or actions

 

Answer: D

 

Explanation:

 

https://docs.aws.amazon.com/organizations/latest/userguide/orgs_manage_policies_scp.html.

 

Service Control Policy concepts

SCPs offer central access controls for all IAM entities in your accounts. You can use them to enforce the permissions you want everyone in your business to follow. Using SCPs, you can give your developers more freedom to manage their own permissions because you know they can only operate within the

boundaries you define. You create and apply SCPs through AWS Organizations. When you create an organization, AWS Organizations automatically creates a root, which forms the parent container for all the accounts in your organization. Inside the root, you can group accounts in your organization into organizational units (OUs)

to simplify management of these accounts. You can create multiple OUs within a single organization, and you can create OUs within other OUs to form a hierarchical structure. You can attach SCPs to the organization root, OUs, and individual accounts. SCPs attached to the root and OUs apply to all OUs and accounts inside of them. SCPs use the AWS Identity and Access Management (IAM) policy language; however, they do not grant permissions. SCPs enable you set permission guardrails by defining the maximum available permissions for IAM entities in an account. If a SCP denies an action for an account, none of the entities in the account can take that action, even if their IAM permissions allow them to do so. The guardrails set in SCPs apply to all IAM entities in the account, which include all users, roles, and the account root user.

 

https://aws.amazon.com/blogs/security/how-to-use-service-control-policies-to-set-permissionguardrails-across-accounts-in-your-awsorganization/#:~:text=Central%20security%20administrators%20use%20service,users%20and%20roles)%20adhere%20to.&text=Now%2C%20using%20SCPs%2C%20you%20can,your%20organization%20or%20organizational%20unit.

 

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