Extinction Agenda Book 3 Chapter 2

50問 • 1年前

問題一覧

A media streaming company is looking to migrate its on-premises infrastructure into the AWS Cloud. The engineering team is looking for a fully managed NoSQL persistent data store with in-memory caching to maintain low latency that is critical for real-time scenarios such as video streaming and interactive content. The team expects the number of concurrent users to touch up to a million so the database should be able to scale elastically. As a solutions architect, which of the following AWS services would you recommend for this use-case?

Amazon DynamoDB

A DevOps engineer at an IT company just upgraded an Amazon EC2 instance type from t2.nano (0.5G of RAM, 1 vCPU) to u-12tb1.metal (12.3 TB of RAM, 448 vCPUs). How would you categorize this upgrade?

This is a scale up example of vertical scalability

A company wants to improve its gaming application by adding a leaderboard that uses a complex proprietary algorithm based on the participating user's performance metrics to identify the top users on a real-time basis. The technical requirements mandate high elasticity, low latency, and real-time processing to deliver customizable user data for the community of users. The leaderboard would be accessed by millions of users simultaneously. Which of the following options support the case for using Amazon ElastiCache to meet the given requirements? (Select two)

Use Amazon ElastiCache to improve the performance of compute-intensive workloads, Use Amazon ElastiCache to improve latency and throughput for read-heavy application workloads

A biotechnology company has multiple High Performance Computing (HPC) workflows that quickly and accurately process and analyze genomes for hereditary diseases. The company is looking to migrate these workflows from their on-premises infrastructure to AWS Cloud. As a solutions architect, which of the following networking components would you recommend on the Amazon EC2 instances running these HPC workflows?

Elastic Fabric Adapter (EFA)

An online gaming application has a large chunk of its traffic coming from users who download static assets such as historic leaderboard reports and the game tactics for various games. The current infrastructure and design are unable to cope up with the traffic and application freezes on most of the pages. Which of the following is a cost-optimal solution that does not need provisioning of infrastructure?

Use Amazon CloudFront with Amazon S3 as the storage solution for the static assets

A company has a hybrid cloud structure for its on-premises data center and AWS Cloud infrastructure. The company wants to build a web log archival solution such that only the most frequently accessed logs are available as cached data locally while backing up all logs on Amazon S3. As a solutions architect, which of the following solutions would you recommend for this use-case?

Use AWS Volume Gateway - Cached Volume - to store the most frequently accessed logs locally for low-latency access while storing the full volume with all logs in its Amazon S3 service bucket

A company has set up AWS Organizations to manage several departments running their own AWS accounts. The departments operate from different countries and are spread across various AWS Regions. The company wants to set up a consistent resource provisioning process across departments so that each resource follows pre-defined configurations such as using a specific type of Amazon EC2 instances, specific IAM roles for AWS Lambda functions, etc. As a solutions architect, which of the following options would you recommend for this use-case?

Use AWS CloudFormation StackSets to deploy the same template across AWS accounts and regions

A big data analytics company is working on a real-time vehicle tracking solution. The data processing workflow involves both I/O intensive and throughput intensive database workloads. The development team needs to store this real-time data in a NoSQL database hosted on an Amazon EC2 instance and needs to support up to 25,000 IOPS per volume. As a solutions architect, which of the following Amazon Elastic Block Store (Amazon EBS) volume types would you recommend for this use-case?

Provisioned IOPS SSD (io1)

The engineering team at an e-commerce company has been tasked with migrating to a serverless architecture. The team wants to focus on the key points of consideration when using AWS Lambda as a backbone for this architecture. As a Solutions Architect, which of the following options would you identify as correct for the given requirement? (Select three)

By default, AWS Lambda functions always operate from an AWS-owned VPC and hence have access to any public internet address or public AWS APIs. Once an AWS Lambda function is VPC-enabled, it will need a route through a Network Address Translation gateway (NAT gateway) in a public subnet to access public resources, Since AWS Lambda functions can scale extremely quickly, it's a good idea to deploy a Amazon CloudWatch Alarm that notifies your team when function metrics such as ConcurrentExecutions or Invocations exceeds the expected threshold, If you intend to reuse code in more than one AWS Lambda function, you should consider creating an AWS Lambda Layer for the reusable code

A social media company wants the capability to dynamically alter the size of a geographic area from which traffic is routed to a specific server resource. Which feature of Amazon Route 53 can help achieve this functionality?

Geoproximity routing

The development team at a social media company wants to handle some complicated queries such as "What are the number of likes on the videos that have been posted by friends of a user A?". As a solutions architect, which of the following AWS database services would you suggest as the BEST fit to handle such use cases?

Amazon Neptune

You started a new job as a solutions architect at a company that has both AWS experts and people learning AWS. Recently, a developer misconfigured a newly created Amazon RDS database which resulted in a production outage. How can you ensure that Amazon RDS specific best practices are incorporated into a reusable infrastructure template to be used by all your AWS users?

Use AWS CloudFormation to manage Amazon RDS databases

An enterprise has decided to move its secondary workloads such as backups and archives to AWS cloud. The CTO wishes to move the data stored on physical tapes to Cloud, without changing their current tape backup workflows. The company holds petabytes of data on tapes and needs a cost-optimized solution to move this data to cloud. What is an optimal solution that meets these requirements while keeping the costs to a minimum?

Use Tape Gateway, which can be used to move on-premises tape data onto AWS Cloud. Then, Amazon S3 archiving storage classes can be used to store data cost-effectively for years

A niche social media application allows users to connect with sports athletes. As a solutions architect, you've designed the architecture of the application to be fully serverless using Amazon API Gateway and AWS Lambda. The backend uses an Amazon DynamoDB table. Some of the star athletes using the application are highly popular, and therefore Amazon DynamoDB has increased the read capacity units (RCUs). Still, the application is experiencing a hot partition problem. What can you do to improve the performance of Amazon DynamoDB and eliminate the hot partition problem without a lot of application refactoring?

Use Amazon DynamoDB DAX

The engineering team at a leading e-commerce company is anticipating a surge in the traffic because of a flash sale planned for the weekend. You have estimated the web traffic to be 10x. The content of your website is highly dynamic and changes very often. As a Solutions Architect, which of the following options would you recommend to make sure your infrastructure scales for that day?

Use an Auto Scaling Group

A company uses Application Load Balancers in multiple AWS Regions. The Application Load Balancers receive inconsistent traffic that varies throughout the year. The engineering team at the company needs to allow the IP addresses of the Application Load Balancers in the on-premises firewall to enable connectivity. Which of the following represents the MOST scalable solution with minimal configuration changes?

Set up AWS Global Accelerator. Register the Application Load Balancers in different Regions to the AWS Global Accelerator. Configure the on-premises firewall's rule to allow static IP addresses associated with the AWS Global Accelerator

Amazon Route 53 is configured to route traffic to two Network Load Balancer nodes belonging to two Availability Zones (AZs): AZ-A and AZ-B. Cross-zone load balancing is disabled. AZ-A has four targets and AZ-B has six targets. Which of the below statements is true about traffic distribution to the target instances from Amazon Route 53?

Each of the four targets in AZ-A receives 12.5% of the traffic

An e-commerce company tracks user clicks on its flagship website and performs analytics to provide near-real-time product recommendations. An Amazon EC2 instance receives data from the website and sends the data to an Amazon Aurora Database instance. Another Amazon EC2 instance continuously checks the changes in the database and executes SQL queries to provide recommendations. Now, the company wants a redesign to decouple and scale the infrastructure. The solution must ensure that data can be analyzed in real-time without any data loss even when the company sees huge traffic spikes. What would you recommend as an AWS Certified Solutions Architect - Associate?

Leverage Amazon Kinesis Data Streams to capture the data from the website and feed it into Amazon Kinesis Data Analytics which can query the data in real time. Lastly, the analyzed feed is output into Amazon Kinesis Data Firehose to persist the data on Amazon S3

A music-sharing company uses a Network Load Balancer to direct traffic to 5 Amazon EC2 instances managed by an Auto Scaling group. When a very popular song is released, the Auto Scaling Group scales to 100 instances and the company incurs high network and compute fees. The company wants a solution to reduce the costs without changing any of the application code. What do you recommend?

Use an Amazon CloudFront distribution

An IT company runs a high-performance computing (HPC) workload on AWS. The workload requires high network throughput and low-latency network performance along with tightly coupled node-to-node communications. The Amazon EC2 instances are properly sized for compute and storage capacity and are launched using default options. Which of the following solutions can be used to improve the performance of the workload?

Select a cluster placement group while launching Amazon EC2 instances

A ride-sharing company wants to use an Amazon DynamoDB table for data storage. The table will not be used during the night hours whereas the read and write traffic will often be unpredictable during day hours. When traffic spikes occur they will happen very quickly. Which of the following will you recommend as the best-fit solution?

Set up Amazon DynamoDB table in the on-demand capacity mode

A Pharmaceuticals company is looking for a simple solution to connect its VPCs and on-premises networks through a central hub. As a Solutions Architect, which of the following would you suggest as the solution that requires the LEAST operational overhead?

Use AWS Transit Gateway to connect the Amazon VPCs to the on-premises networks

A Big Data analytics company writes data and log files in Amazon S3 buckets. The company now wants to stream the existing data files as well as any ongoing file updates from Amazon S3 to Amazon Kinesis Data Streams. As a Solutions Architect, which of the following would you suggest as the fastest possible way of building a solution for this requirement?

Leverage AWS Database Migration Service (AWS DMS) as a bridge between Amazon S3 and Amazon Kinesis Data Streams

A retail company is using AWS Site-to-Site VPN connections for secure connectivity to its AWS cloud resources from its on-premises data center. Due to a surge in traffic across the VPN connections to the AWS cloud, users are experiencing slower VPN connectivity. Which of the following options will maximize the VPN throughput?

Create an AWS Transit Gateway with equal cost multipath routing and add additional VPN tunnels

A company's business logic is built on several microservices that are running in the on-premises data center. They currently communicate using a message broker that supports the MQTT protocol. The company is looking at migrating these applications and the message broker to AWS Cloud without changing the application logic. Which technology allows you to get a managed message broker that supports the MQTT protocol?

Amazon MQ

A leading e-commerce company runs its IT infrastructure on AWS Cloud. The company has a batch job running at 7AM daily on an Amazon RDS database. It processes shipping orders for the past day, and usually gets around 2000 records that need to be processed sequentially in a batch job via a shell script. The processing of each record takes about 3 seconds. What platform do you recommend to run this batch job?

Amazon Elastic Compute Cloud (Amazon EC2)

Your company runs a web portal to match developers to clients who need their help. As a solutions architect, you've designed the architecture of the website to be fully serverless with Amazon API Gateway and AWS Lambda. The backend uses Amazon DynamoDB table. You would like to automatically congratulate your developers on important milestones, such as - their first paid contract. All the contracts are stored in Amazon DynamoDB. Which Amazon DynamoDB feature can you use to implement this functionality such that there is LEAST delay in sending automatic notifications?

Amazon DynamoDB Streams + AWS Lambda

A Big Data processing company has created a distributed data processing framework that performs best if the network performance between the processing machines is high. The application has to be deployed on AWS, and the company is only looking at performance as the key measure. As a Solutions Architect, which deployment do you recommend?

Use a Cluster placement group

An IT company has built a custom data warehousing solution for a retail organization by using Amazon Redshift. As part of the cost optimizations, the company wants to move any historical data (any data older than a year) into Amazon S3, as the daily analytical reports consume data for just the last one year. However the analysts want to retain the ability to cross-reference this historical data along with the daily reports. The company wants to develop a solution with the LEAST amount of effort and MINIMUM cost. As a solutions architect, which option would you recommend to facilitate this use-case?

Use Amazon Redshift Spectrum to create Amazon Redshift cluster tables pointing to the underlying historical data in Amazon S3. The analytics team can then query this historical data to cross-reference with the daily reports from Redshift

A financial services company runs its flagship web application on AWS. The application serves thousands of users during peak hours. The company needs a scalable near-real-time solution to share hundreds of thousands of financial transactions with multiple internal applications. The solution should also remove sensitive details from the transactions before storing the cleansed transactions in a document database for low-latency retrieval. As an AWS Certified Solutions Architect Associate, which of the following would you recommend?

Feed the streaming transactions into Amazon Kinesis Data Streams. Leverage AWS Lambda integration to remove sensitive data from every transaction and then store the cleansed transactions in Amazon DynamoDB. The internal applications can consume the raw transactions off the Amazon Kinesis Data Stream

A company hires experienced specialists to analyze the customer service calls attended by its call center representatives. Now, the company wants to move to AWS Cloud and is looking at an automated solution to analyze customer service calls for sentiment analysis via ad-hoc SQL queries. As a Solutions Architect, which of the following solutions would you recommend?

Use Amazon Transcribe to convert audio files to text and Amazon Athena to perform SQL based analysis to understand the underlying customer sentiments

An Internet-of-Things (IoT) company is looking for a database solution on AWS Cloud that has Auto Scaling capabilities and is highly available. The database should be able to handle any changes in data attributes over time, in case the company updates the data feed from its IoT devices. The database must provide the capability to output a continuous stream with details of any changes to the underlying data. As a Solutions Architect, which database will you recommend?

Amazon DynamoDB

Your company is evolving towards a microservice approach for their website. The company plans to expose the website from the same load balancer, linked to different target groups with different URLs, that are similar to these - checkout.mycorp.com, www.mycorp.com, mycorp.com/profile, and mycorp.com/search. As a Solutions Architect, which Load Balancer type do you recommend to achieve this routing feature with MINIMUM configuration and development effort?

Create an Application Load Balancer

A solutions architect has been tasked to design a low-latency solution for a static, single-page application, accessed by users through a custom domain name. The solution must be serverless, provide in-transit data encryption and needs to be cost-effective. Which AWS services can be combined to build the simplest possible solution for the company's requirement?

Use Amazon S3 to host the static website and Amazon CloudFront to distribute the content for low latency access

A company is looking for a technology that allows its mobile app users to connect through a Google login and have the capability to turn on AWS Multi-Factor Authentication (AWS MFA) to have maximum security. Ideally, the solution should be fully managed by AWS. Which technology do you recommend for managing the users' accounts?

Amazon Cognito

A company wants to store business-critical data on Amazon Elastic Block Store (Amazon EBS) volumes which provide persistent storage independent of Amazon EC2 instances. During a test run, the development team found that on terminating an Amazon EC2 instance, the attached Amazon EBS volume was also lost, which was contrary to their assumptions. As a solutions architect, could you explain this issue?

The Amazon EBS volume was configured as the root volume of Amazon EC2 instance. On termination of the instance, the default behavior is to also terminate the attached root volume

You have just terminated an instance in the us-west-1a Availability Zone (AZ). The attached Amazon EBS volume is now available for attachment to other instances. An intern launches a new Linux Amazon EC2 instance in the us-west-1b Availability Zone (AZ) and is attempting to attach the Amazon EBS volume. The intern informs you that it is not possible and needs your help. Which of the following explanations would you provide to them?

Amazon EBS volumes are Availability Zone (AZ) locked

Reporters at a news agency upload/download video files (about 500 megabytes each) to/from an Amazon S3 bucket as part of their daily work. As the agency has started offices in remote locations, it has resulted in poor latency for uploading and accessing data to/from the given Amazon S3 bucket. The agency wants to continue using a serverless storage solution such as Amazon S3 but wants to improve the performance. As a solutions architect, which of the following solutions do you propose to address this issue? (Select two)

Enable Amazon S3 Transfer Acceleration (Amazon S3TA) for the Amazon S3 bucket. This would speed up uploads as well as downloads for the video files, Use Amazon CloudFront distribution with origin as the Amazon S3 bucket. This would speed up uploads as well as downloads for the video files

A media company is evaluating the possibility of moving its IT infrastructure to the AWS Cloud. The company needs at least 10 terabytes of storage with the maximum possible I/O performance for processing certain files which are mostly large videos. The company also needs close to 450 terabytes of very durable storage for storing media content and almost double of it, i.e. 900 terabytes for archival of legacy data. As a Solutions Architect, which set of services will you recommend to meet these requirements?

Amazon EC2 instance store for maximum performance, Amazon S3 for durable data storage, and Amazon S3 Glacier for archival storage

A Customer relationship management (CRM) application is facing user experience issues with users reporting frequent sign-in requests from the application. The application is currently hosted on multiple Amazon EC2 instances behind an Application Load Balancer. The engineering team has identified the root cause as unhealthy servers causing session data to be lost. The team would like to implement a distributed in-memory cache-based session management solution. As a solutions architect, which of the following solutions would you recommend?

Use Amazon Elasticache for distributed in-memory cache based session management

A company needs a massive PostgreSQL database and the engineering team would like to retain control over managing the patches, version upgrades for the database, and consistent performance with high IOPS. The team wants to install the database on an Amazon EC2 instance with the optimal storage type on the attached Amazon EBS volume. As a solutions architect, which of the following configurations would you suggest to the engineering team?

Amazon EC2 with Amazon EBS volume of Provisioned IOPS SSD (io1) type

An application with global users across AWS Regions had suffered an issue when the Elastic Load Balancing (ELB) in a Region malfunctioned thereby taking down the traffic with it. The manual intervention cost the company significant time and resulted in major revenue loss. What should a solutions architect recommend to reduce internet latency and add automatic failover across AWS Regions?

Set up AWS Global Accelerator and add endpoints to cater to users in different geographic locations

Your firm has implemented a multi-tiered networking structure within the VPC - with two public and two private subnets. The public subnets are used to deploy the Application Load Balancers, while the two private subnets are used to deploy the application on Amazon EC2 instances. The development team wants the Amazon EC2 instances to have access to the internet. The solution has to be fully managed by AWS and needs to work over IPv4. What will you recommend?

NAT Gateways deployed in your public subnet

You have built an application that is deployed with Elastic Load Balancing and an Auto Scaling Group. As a Solutions Architect, you have configured aggressive Amazon CloudWatch alarms, making your Auto Scaling Group (ASG) scale in and out very quickly, renewing your fleet of Amazon EC2 instances on a daily basis. A production bug appeared two days ago, but the team is unable to SSH into the instance to debug the issue, because the instance has already been terminated by the Auto Scaling Group. The log files are saved on the Amazon EC2 instance. How will you resolve the issue and make sure it doesn't happen again?

Install an Amazon CloudWatch Logs agents on the Amazon EC2 instances to send logs to Amazon CloudWatch

You are a cloud architect at an IT company. The company has multiple enterprise customers that manage their own mobile applications that capture and send data to Amazon Kinesis Data Streams. They have been getting a ProvisionedThroughputExceededException exception. You have been contacted to help and upon analysis, you notice that messages are being sent one by one at a high rate. Which of the following options will help with the exception while keeping costs at a minimum?

Use batch messages

The engineering team at a weather tracking company wants to enhance the performance of its relational database and is looking for a caching solution that supports geospatial data. As a solutions architect, which of the following solutions will you suggest?

Use Amazon ElastiCache for Redis

An Internet-of-Things (IoT) company is planning on distributing a master sensor in people's homes to measure the key metrics from its smart devices. In order to provide adjustment commands for these devices, the company would like to have a streaming system that supports ordered data based on the sensor's key, and also sustains high throughput messages (thousands of messages per second). As a solutions architect, which of the following AWS services would you recommend for this use-case?

Amazon Kinesis Data Streams

A leading media company wants to do an accelerated online migration of hundreds of terabytes of files from their on-premises data center to Amazon S3 and then establish a mechanism to access the migrated data for ongoing updates from the on-premises applications. As a solutions architect, which of the following would you select as the MOST performant solution for the given use-case?

Use AWS DataSync to migrate existing data to Amazon S3 and then use File Gateway to retain access to the migrated data for ongoing updates from the on-premises applications

A big data analytics company is using Amazon Kinesis Data Streams (KDS) to process IoT data from the field devices of an agricultural sciences company. Multiple consumer applications are using the incoming data streams and the engineers have noticed a performance lag for the data delivery speed between producers and consumers of the data streams. As a solutions architect, which of the following would you recommend for improving the performance for the given use-case?

Use Enhanced Fanout feature of Amazon Kinesis Data Streams

The engineering team at a company wants to create a daily big data analysis job leveraging Spark for analyzing online/offline sales and customer loyalty data to create customized reports on a client-by-client basis. The big data analysis job needs to read the data from Amazon S3 and output it back to Amazon S3. Which technology do you recommend to run the Big Data analysis job? (Select two)

AWS Glue, Amazon EMR

xj9 - 19628 - a

critical flaw · 98問 · 2年前

xj9 - 19628 - a