Extinction Agenda Book 2 Chapter 1

50問 • 1年前

問題一覧

A company manages a multi-tier social media application that runs on Amazon Elastic Compute Cloud (Amazon EC2) instances behind an Application Load Balancer. The instances run in an Amazon EC2 Auto Scaling group across multiple Availability Zones (AZs) and use an Amazon Aurora database. As an AWS Certified Solutions Architect – Associate, you have been tasked to make the application more resilient to periodic spikes in request rates. Which of the following solutions would you recommend for the given use-case? (Select two)

Use Amazon CloudFront distribution in front of the Application Load Balancer, Use Amazon Aurora Replica

A Big Data analytics company wants to set up an AWS cloud architecture that throttles requests in case of sudden traffic spikes. The company is looking for AWS services that can be used for buffering or throttling to handle such traffic variations. Which of the following services can be used to support this requirement?

Amazon API Gateway, Amazon Simple Queue Service (Amazon SQS) and Amazon Kinesis

A major bank is using Amazon Simple Queue Service (Amazon SQS) to migrate several core banking applications to the cloud to ensure high availability and cost efficiency while simplifying administrative complexity and overhead. The development team at the bank expects a peak rate of about 1000 messages per second to be processed via SQS. It is important that the messages are processed in order. Which of the following options can be used to implement this system?

Use Amazon SQS FIFO (First-In-First-Out) queue in batch mode of 4 messages per operation to process the messages at the peak rate

The development team at an e-commerce startup has set up multiple microservices running on Amazon EC2 instances under an Application Load Balancer. The team wants to route traffic to multiple back-end services based on the URL path of the HTTP header. So it wants requests for https://www.example.com/orders to go to a specific microservice and requests for https://www.example.com/products to go to another microservice. Which of the following features of Application Load Balancers can be used for this use-case?

Path-based Routing

A healthcare company uses its on-premises infrastructure to run legacy applications that require specialized customizations to the underlying Oracle database as well as its host operating system (OS). The company also wants to improve the availability of the Oracle database layer. The company has hired you as an AWS Certified Solutions Architect – Associate to build a solution on AWS that meets these requirements while minimizing the underlying infrastructure maintenance effort. Which of the following options represents the best solution for this use case?

Leverage multi-AZ configuration of Amazon RDS Custom for Oracle that allows the Database Administrator (DBA) to access and customize the database environment and the underlying operating system

A new DevOps engineer has just joined a development team and wants to understand the replication capabilities for Amazon RDS Multi-AZ deployment as well as Amazon RDS Read-replicas. Which of the following correctly summarizes these capabilities for the given database?

Multi-AZ follows synchronous replication and spans at least two Availability Zones (AZs) within a single region. Read replicas follow asynchronous replication and can be within an Availability Zone (AZ), Cross-AZ, or Cross-Region

The engineering team at a Spanish professional football club has built a notification system for its website using Amazon Simple Notification Service (Amazon SNS) notifications which are then handled by an AWS Lambda function for end-user delivery. During the off-season, the notification systems need to handle about 100 requests per second. During the peak football season, the rate touches about 5000 requests per second and it is noticed that a significant number of the notifications are not being delivered to the end-users on the website. As a solutions architect, which of the following would you suggest as the BEST possible solution to this issue?

Amazon SNS message deliveries to AWS Lambda have crossed the account concurrency quota for AWS Lambda, so the team needs to contact AWS support to raise the account limit

An e-commerce company is looking for a solution with high availability, as it plans to migrate its flagship application to a fleet of Amazon Elastic Compute Cloud (Amazon EC2) instances. The solution should allow for content-based routing as part of the architecture. As a Solutions Architect, which of the following will you suggest for the company?

Use an Application Load Balancer for distributing traffic to the Amazon EC2 instances spread across different Availability Zones (AZs). Configure Auto Scaling group to mask any failure of an instance

The DevOps team at an e-commerce company wants to perform some maintenance work on a specific Amazon EC2 instance that is part of an Auto Scaling group using a step scaling policy. The team is facing a maintenance challenge - every time the team deploys a maintenance patch, the instance health check status shows as out of service for a few minutes. This causes the Auto Scaling group to provision another replacement instance immediately. As a solutions architect, which are the MOST time/resource efficient steps that you would recommend so that the maintenance work can be completed at the earliest? (Select two)

Put the instance into the Standby state and then update the instance by applying the maintenance patch. Once the instance is ready, you can exit the Standby state and then return the instance to service, Suspend the ReplaceUnhealthy process type for the Auto Scaling group and apply the maintenance patch to the instance. Once the instance is ready, you can manually set the instance's health status back to healthy and activate the ReplaceUnhealthy process type again

A healthcare startup needs to enforce compliance and regulatory guidelines for objects stored in Amazon S3. One of the key requirements is to provide adequate protection against accidental deletion of objects. As a solutions architect, what are your recommendations to address these guidelines? (Select two) ?

Enable multi-factor authentication (MFA) delete on the Amazon S3 bucket, Enable versioning on the Amazon S3 bucket

A gaming company uses Amazon Aurora as its primary database service. The company has now deployed 5 multi-AZ read replicas to increase the read throughput and for use as failover target. The replicas have been assigned the following failover priority tiers and corresponding instance sizes are given in parentheses: tier-1 (16 terabytes), tier-1 (32 terabytes), tier-10 (16 terabytes), tier-15 (16 terabytes), tier-15 (32 terabytes). In the event of a failover, Amazon Aurora will promote which of the following read replicas?

Tier-1 (32 terabytes)

The payroll department at a company initiates several computationally intensive workloads on Amazon EC2 instances at a designated hour on the last day of every month. The payroll department has noticed a trend of severe performance lag during this hour. The engineering team has figured out a solution by using Auto Scaling Group for these Amazon EC2 instances and making sure that 10 Amazon EC2 instances are available during this peak usage hour. For normal operations only 2 Amazon EC2 instances are enough to cater to the workload. As a solutions architect, which of the following steps would you recommend to implement the solution?

Configure your Auto Scaling group by creating a scheduled action that kicks-off at the designated hour on the last day of the month. Set the desired capacity of instances to 10. This causes the scale-out to happen before peak traffic kicks in at the designated hour

While consolidating logs for the weekly reporting, a development team at an e-commerce company noticed that an unusually large number of illegal AWS application programming interface (API) queries were made sometime during the week. Due to the off-season, there was no visible impact on the systems. However, this event led the management team to seek an automated solution that can trigger near-real-time warnings in case such an event recurs. Which of the following represents the best solution for the given scenario?

Create an Amazon CloudWatch metric filter that processes AWS CloudTrail logs having API call details and looks at any errors by factoring in all the error codes that need to be tracked. Create an alarm based on this metric's rate to send an Amazon SNS notification to the required team

A leading carmaker would like to build a new car-as-a-sensor service by leveraging fully serverless components that are provisioned and managed automatically by AWS. The development team at the carmaker does not want an option that requires the capacity to be manually provisioned, as it does not want to respond manually to changing volumes of sensor data. Given these constraints, which of the following solutions is the BEST fit to develop this car-as-a-sensor service?

Ingest the sensor data in an Amazon Simple Queue Service (Amazon SQS) standard queue, which is polled by an AWS Lambda function in batches and the data is written into an auto-scaled Amazon DynamoDB table for downstream processing

A big-data consulting firm is working on a client engagement where the extract, transform, and load (ETL) workloads are currently handled via a Hadoop cluster deployed in the on-premises data center. The client wants to migrate their ETL workloads to AWS Cloud. The AWS Cloud solution needs to be highly available with about 50 Amazon Elastic Compute Cloud (Amazon EC2) instances per Availability Zone (AZ). As a solutions architect, which of the following Amazon EC2 placement groups would you recommend for handling the distributed ETL workload?

Partition placement group

The engineering team at a logistics company has noticed that the Auto Scaling group (ASG) is not terminating an unhealthy Amazon EC2 instance. As a Solutions Architect, which of the following options would you suggest to troubleshoot the issue? (Select three)

The instance maybe in Impaired status, The instance has failed the Elastic Load Balancing (ELB) health check status, The health check grace period for the instance has not expired

A weather forecast agency collects key weather metrics across multiple cities in the US and sends this data in the form of key-value pairs to AWS Cloud at a one-minute frequency. As a solutions architect, which of the following AWS services would you use to build a solution for processing and then reliably storing this data with high availability? (Select two)

Amazon DynamoDB, AWS Lambda

A company has recently launched a new mobile gaming application that the users are adopting rapidly. The company uses Amazon RDS MySQL as the database. The engineering team wants an urgent solution to this issue where the rapidly increasing workload might exceed the available database storage. As a solutions architect, which of the following solutions would you recommend so that it requires minimum development and systems administration effort to address this requirement?

Enable storage auto-scaling for Amazon RDS MySQL

An e-commerce application uses an Amazon Aurora Multi-AZ deployment for its database. While analyzing the performance metrics, the engineering team has found that the database reads are causing high input/output (I/O) and adding latency to the write requests against the database. As an AWS Certified Solutions Architect Associate, what would you recommend to separate the read requests from the write requests?

Set up a read replica and modify the application to use the appropriate endpoint

A manufacturing company receives unreliable service from its data center provider because the company is located in an area prone to natural disasters. The company is not ready to fully migrate to the AWS Cloud, but it wants a failover environment on AWS in case the on-premises data center fails. The company runs web servers that connect to external vendors. The data available on AWS and on-premises must be uniform. Which of the following solutions would have the LEAST amount of downtime?

Set up a Amazon Route 53 failover record. Run application servers on Amazon EC2 instances behind an Application Load Balancer in an Auto Scaling group. Set up AWS Storage Gateway with stored volumes to back up data to Amazon S3

A cybersecurity company uses a fleet of Amazon EC2 instances to run a proprietary application. The infrastructure maintenance group at the company wants to be notified via an email whenever the CPU utilization for any of the Amazon EC2 instances breaches a certain threshold. Which of the following services would you use for building a solution with the LEAST amount of development effort? (Select two)

Amazon CloudWatch, Amazon Simple Notification Service (Amazon SNS)

A retail company wants to rollout and test a blue-green deployment for its global application in the next 48 hours. Most of the customers use mobile phones which are prone to Domain Name System (DNS) caching. The company has only two days left for the annual Thanksgiving sale to commence. As a Solutions Architect, which of the following options would you recommend to test the deployment on as many users as possible in the given time frame?

Use AWS Global Accelerator to distribute a portion of traffic to a particular deployment

A media company is migrating its flagship application from its on-premises data center to AWS for improving the application's read-scaling capability as well as its availability. The existing architecture leverages a Microsoft SQL Server database that sees a heavy read load. The engineering team does a full copy of the production database at the start of the business day to populate a dev database. During this period, application users face high latency leading to a bad user experience. The company is looking at alternate database options and migrating database engines if required. What would you suggest?

Leverage Amazon Aurora MySQL with Multi-AZ Aurora Replicas and create the dev database by restoring from the automated backups of Amazon Aurora

A startup has just developed a video backup service hosted on a fleet of Amazon EC2 instances. The Amazon EC2 instances are behind an Application Load Balancer and the instances are using Amazon Elastic Block Store (Amazon EBS) Volumes for storage. The service provides authenticated users the ability to upload videos that are then saved on the EBS volume attached to a given instance. On the first day of the beta launch, users start complaining that they can see only some of the videos in their uploaded videos backup. Every time the users log into the website, they claim to see a different subset of their uploaded videos. Which of the following is the MOST optimal solution to make sure that users can view all the uploaded videos? (Select two)

Write a one time job to copy the videos from all Amazon EBS volumes to Amazon S3 and then modify the application to use Amazon S3 standard for storing the videos, Mount Amazon Elastic File System (Amazon EFS) on all Amazon EC2 instances. Write a one time job to copy the videos from all Amazon EBS volumes to Amazon EFS. Modify the application to use Amazon EFS for storing the videos

You would like to migrate an AWS account from an AWS Organization A to an AWS Organization B. What are the steps do to it?

Remove the member account from the old organization. Send an invite to the member account from the new Organization. Accept the invite to the new organization from the member account

An IT company is working on a client project to build a Supply Chain Management application. The web-tier of the application runs on an Amazon EC2 instance and the database tier is on Amazon RDS MySQL. For beta testing, all the resources are currently deployed in a single Availability Zone (AZ). The development team wants to improve application availability before the go-live. Given that all end users of the web application would be located in the US, which of the following would be the MOST resource-efficient solution?

Deploy the web-tier Amazon EC2 instances in two Availability Zones (AZs), behind an Elastic Load Balancer. Deploy the Amazon RDS MySQL database in Multi-AZ configuration

The engineering team at a social media company wants to use Amazon CloudWatch alarms to automatically recover Amazon EC2 instances if they become impaired. The team has hired you as a solutions architect to provide subject matter expertise. As a solutions architect, which of the following statements would you identify as CORRECT regarding this automatic recovery process? (Select two)

A recovered instance is identical to the original instance, including the instance ID, private IP addresses, Elastic IP addresses, and all instance metadata, If your instance has a public IPv4 address, it retains the public IPv4 address after recovery

A company recently experienced a database outage in its on-premises data center. The company now wants to migrate to a reliable database solution on AWS that minimizes data loss and stores every transaction on at least two nodes. Which of the following solutions meets these requirements?

Set up an Amazon RDS MySQL DB instance with Multi-AZ functionality enabled to synchronously replicate the data

A health care application processes the real-time health data of the patients into an analytics workflow. With a sharp increase in the number of users, the system has become slow and sometimes even unresponsive as it does not have a retry mechanism. The startup is looking at a scalable solution that has minimal implementation overhead. Which of the following would you recommend as a scalable alternative to the current solution?

Use Amazon Kinesis Data Streams to ingest the data, process it using AWS Lambda or run analytics using Amazon Kinesis Data Analytics

A leading bank has moved its IT infrastructure to AWS Cloud and they have been using Amazon EC2 Auto Scaling for their web servers. This has helped them deal with traffic spikes effectively. But, their MySQL relational database has now become a bottleneck and they urgently need a fully managed auto scaling solution for their relational database to address any unpredictable changes in the traffic. Can you identify the AWS service that is best suited for this use-case?

Amazon Aurora Serverless

A startup has recently moved their monolithic web application to AWS Cloud. The application runs on a single Amazon EC2 instance. Currently, the user base is small and the startup does not want to spend effort on elaborate disaster recovery strategies or Auto Scaling Group. The application can afford a maximum downtime of 10 minutes. In case of a failure, which of these options would you suggest as a cost-effective and automatic recovery procedure for the instance?

Configure an Amazon CloudWatch alarm that triggers the recovery of the Amazon EC2 instance, in case the instance fails. The instance, however, should only be configured with an Amazon EBS volume

A financial services company wants to move the Windows file server clusters out of their datacenters. They are looking for cloud file storage offerings that provide full Windows compatibility. Can you identify the AWS storage services that provide highly reliable file storage that is accessible over the industry-standard Server Message Block (SMB) protocol compatible with Windows systems? (Select two)

Amazon FSx for Windows File Server, File Gateway Configuration of AWS Storage Gateway

The DevOps team at an IT company has created a custom VPC (V1) and attached an Internet Gateway (I1) to the VPC. The team has also created a subnet (S1) in this custom VPC and added a route to this subnet's route table (R1) that directs internet-bound traffic to the Internet Gateway. Now the team launches an Amazon EC2 instance (E1) in the subnet S1 and assigns a public IPv4 address to this instance. Next the team also launches a Network Address Translation (NAT) instance (N1) in the subnet S1. Under the given infrastructure setup, which of the following entities is doing the Network Address Translation for the Amazon EC2 instance E1?

Internet Gateway (I1)

A data analytics company manages an application that stores user data in a Amazon DynamoDB table. The development team has observed that once in a while, the application writes corrupted data in the Amazon DynamoDB table. As soon as the issue is detected, the team needs to remove the corrupted data at the earliest. What do you recommend?

Use Amazon DynamoDB point in time recovery to restore the table to the state just before corrupted data was written

An e-commerce company is using Elastic Load Balancing (ELB) for its fleet of Amazon EC2 instances spread across two Availability Zones (AZs), with one instance as a target in Availability Zone A and four instances as targets in Availability Zone B. The company is doing benchmarking for server performance when cross-zone load balancing is enabled compared to the case when cross-zone load balancing is disabled. As a solutions architect, which of the following traffic distribution outcomes would you identify as correct?

With cross-zone load balancing enabled, one instance in Availability Zone A receives 20% traffic and four instances in Availability Zone B receive 20% traffic each. With cross-zone load balancing disabled, one instance in Availability Zone A receives 50% traffic and four instances in Availability Zone B receive 12.5% traffic each

A global manufacturing company with facilities in the US, Europe, and Asia is designing a new distributed application to optimize its procurement workflow. The orders booked in one AWS Region should be visible to all AWS Regions in a second or less. The database should be able to facilitate failover with a short Recovery Time Objective (RTO). The uptime of the application is critical to ensure that the manufacturing processes are not impacted. As a solutions architect, which of the following will you recommend as the MOST cost-effective solution?

Provision Amazon Aurora Global Database

A leading news aggregation company offers hundreds of digital products and services for customers ranging from law firms to banks to consumers. The company bills its clients based on per unit of clickstream data provided to the clients. As the company operates in a regulated industry, it needs to have the same ordered clickstream data available for auditing within a window of 7 days. As a solutions architect, which of the following AWS services provides the ability to run the billing process and auditing process on the given clickstream data in the same order?

Amazon Kinesis Data Streams

An IT company hosts windows based applications on its on-premises data center. The company is looking at moving the business to the AWS Cloud. The cloud solution should offer shared storage space that multiple applications can access without a need for replication. Also, the solution should integrate with the company's self-managed Active Directory domain. Which of the following solutions addresses these requirements with the minimal integration effort?

Use Amazon FSx for Windows File Server as a shared storage solution

The engineering team at an e-commerce company wants to migrate from Amazon Simple Queue Service (Amazon SQS) Standard queues to FIFO (First-In-First-Out) queues with batching. As a solutions architect, which of the following steps would you have in the migration checklist? (Select three)

Make sure that the name of the FIFO (First-In-First-Out) queue ends with the .fifo suffix, Make sure that the throughput for the target FIFO (First-In-First-Out) queue does not exceed 3,000 messages per second, Delete the existing standard queue and recreate it as a FIFO (First-In-First-Out) queue

Which of the following AWS services provides a highly available and fault-tolerant solution to capture the clickstream events from the source and then provide a concurrent feed of the data stream to the downstream applications?

Amazon Kinesis Data Streams

A legacy application is built using a tightly-coupled monolithic architecture. Due to a sharp increase in the number of users, the application performance has degraded. The company now wants to decouple the architecture and adopt AWS microservices architecture. Some of these microservices need to handle fast running processes whereas other microservices need to handle slower processes. Which of these options would you identify as the right way of connecting these microservices?

Configure Amazon Simple Queue Service (Amazon SQS) queue to decouple microservices running faster processes from the microservices running slower ones

A company has hired you as an AWS Certified Solutions Architect – Associate to help with redesigning a real-time data processor. The company wants to build custom applications that process and analyze the streaming data for its specialized needs. Which solution will you recommend to address this use-case?

Use Amazon Kinesis Data Streams to process the data streams as well as decouple the producers and consumers for the real-time data processor

An IT company is using Amazon Simple Queue Service (Amazon SQS) queues for decoupling the various components of application architecture. As the consuming components need additional time to process Amazon Simple Queue Service (Amazon SQS) messages, the company wants to postpone the delivery of new messages to the queue for a few seconds. As a solutions architect, which of the following solutions would you suggest to the company?

Use delay queues to postpone the delivery of new messages to the queue for a few seconds

The business analytics team at a company has been running ad-hoc queries on Oracle and PostgreSQL services on Amazon RDS to prepare daily reports for senior management. To facilitate the business analytics reporting, the engineering team now wants to continuously replicate this data and consolidate these databases into a petabyte-scale data warehouse by streaming data to Amazon Redshift. As a solutions architect, which of the following would you recommend as the MOST resource-efficient solution that requires the LEAST amount of development time without the need to manage the underlying infrastructure?

Use AWS Database Migration Service (AWS DMS) to replicate the data from the databases into Amazon Redshift

As a Solutions Architect, you are tasked to design a distributed application that will run on various Amazon EC2 instances. This application needs to have the highest performance local disk to cache data. Also, data is copied through an Amazon EC2 to EC2 replication mechanism. It is acceptable if the instance loses its data when stopped or terminated. Which storage solution do you recommend?

Instance Store

An Internet of Things (IoT) company would like to have a streaming system that performs real-time analytics on the ingested IoT data. Once the analytics is done, the company would like to send notifications back to the mobile applications of the IoT device owners. As a solutions architect, which of the following AWS technologies would you recommend to send these notifications to the mobile applications?

Amazon Kinesis with Amazon Simple Notification Service (Amazon SNS)

A small rental company had 5 employees, all working under the same AWS cloud account. These employees deployed their applications built for various functions- including billing, operations, finance, etc. Each of these employees has been operating in their own VPC. Now, there is a need to connect these VPCs so that the applications can communicate with each other. Which of the following is the MOST cost-effective solution for this use-case?

Use a VPC peering connection

A ride-sharing company wants to improve the ride-tracking system that stores GPS coordinates for all rides. The engineering team at the company is looking for a NoSQL database that has single-digit millisecond latency, can scale horizontally, and is serverless, so that they can perform high-frequency lookups reliably. As a Solutions Architect, which database do you recommend for their requirements?

Amazon DynamoDB

A company has built a serverless application using Amazon API Gateway and AWS Lambda. The backend is leveraging an Amazon Aurora MySQL database. The web application was initially launched in the Americas and the company would now like to expand it to Europe, where a read-only version will be available to improve latency. You plan on deploying the Amazon API Gateway and AWS Lambda using AWS CloudFormation, but would like to have a read-only copy of your data in Europe as well. As a Solutions Architect, what do you recommend?

Use Amazon Aurora Read Replicas

An e-commerce company wants to migrate its on-premises application to AWS. The application consists of application servers and a Microsoft SQL Server database. The solution should result in the maximum possible availability for the database layer while minimizing operational and management overhead. As a solutions architect, which of the following would you recommend to meet the given requirements?

Migrate the data to Amazon RDS for SQL Server database in a Multi-AZ deployment

xj9 - 19628 - a

critical flaw · 98問 · 2年前

xj9 - 19628 - a