주어진 문제가 385개 이니까 하루에 55개씩만 보면 될거 같다. - 25개
NO.1 A company has two On-Demand EC2 instances inside the Virtual Private Cloud in the same
Availability Zone but are deployed to different subnets. One EC2 instance is running a database and
the other EC2 instance a web application that connects with the database. You need to ensure that
these two instances can communicate with each other for the system to work properly.
What are the things you have to check so that these EC2 instances can communicate inside the VPC?
NO.2 A data analytics company keeps a massive volume of data that they store in their on-premises
data center. To scale their storage systems, they are looking for cloud-backed storage volumes that
they can mount using Internet Small Computer System Interface (iSCSI) devices from their onpremises
application servers. They have an on-site data analytics application that frequently accesses
the latest data subsets locally while the older data are rarely accessed. You are required to minimize
the need to scale the on-premises storage infrastructure while still providing their web application
with low-latency access to the data.
Which type of AWS Storage Gateway service will you use to meet the above requirements?
NO.3 A company has several unencrypted EBS snapshots in their VPC. The Solutions Architect must
ensure that all of the new EBS volumes restored from the unencrypted snapshots are automatically
encrypted.
What should be done to accomplish this requirement?
NO.4 A company developed a web application and deployed it on a fleet of EC2 instances that uses
Amazon SQS. The requests are saved as messages in the SQS queue, which is configured with the
maximum message retention period. However, after thirteen days of operation, the web application
suddenly crashed and there are 10,000 unprocessed messages that are still waiting in the queue.
Since they developed the application, they can easily resolve the issue but they need to send a
communication to the users on the issue.
What information should they provide and what will happen to the unprocessed messages?
NO.5 A company has hundreds of VPCs with multiple VPN connections to their data centers spanning
5 AWS Regions. As the number of its workloads grows, the company must be able to scale its
networks across multiple accounts and VPCs to keep up. A Solutions Architect is tasked to
interconnect all of the company's on-premises networks, VPNs, and VPCs into a single gateway,
which includes support for inter-region peering across multiple AWS regions.
Which of the following is the BEST solution that the architect should set up to support the required
interconnectivity?
NO.6 An online stock trading system is hosted in AWS and uses an Auto Scaling group of EC2
instances, an RDS database, and an Amazon ElastiCache for Redis. You need to improve the data
security of your in-memory data store by requiring the user to enter a password before they are
granted permission to execute Redis commands.
Which of the following should you do to meet the above requirement?