Font size
WorksheetsAZA_Quiz2_Database_S3
Total questions: 15
Worksheet time: 11mins
A company needs to store images that are uploaded by users via a mobile application. There is also a need to ensure that a security measure is in place to avoid the data loss. What step should be taken for protection against unintended user actions?
Store data in an EBS volume and create snapshots once a week
Store data in an S3 bucket and enable versioning
Store data in two S3 buckets in different AWS regions (CRR)
Store data on EC2 instance storage
A company has a requirement for archival of 12 TB of data. There is an agreement with the customers for an 8-hour agreed retrieval time. Which of the following is the MOST cost-effective solution?
S3 Standard
S3 Infrequent Access
S3 Glacier
EBS Volumes
A document submission application will use an Amazon S3 bucket for storage. The solution must prevent accidental deletion of the documents and ensure that all versions of the documents are available. Users must be able to upload and modify the documents. Which combination of actions should be taken to meet these requirements? (Select TWO)
Set read-only permissions on the bucket
Enable versioning on the bucket
Attach an IAM policy to the bucket
Enable MFA Delete on the bucket
Encrypt the bucket using AWS SSE-S3
A highly-scalable system contains records that must remain available for immediate download for three months, and then the records must be deleted. What’s the most appropriate decision for this use case?
Store on Amazon EBS and create a lifecycle policy to remove the files after three months
Store on Amazon Glacier and create a lifecycle policy to remove the files after three months
Store on Amazon S3 and create a lifecycle policy to remove the files after three months
Store on Amazon EFS and create a lifecycle policy to remove the files after three months
An application that receives and processes files with size around 4GB, extracts metadata from the files which typically takes a few seconds for each file. The pattern of updates is highly dynamic with times of little activity and then multiple uploads within a short period of time. What architecture will address this workload the most cost efficiently?
Store the file in an EBS volume which can then be accessed by another EC2 instance for processing
Place the files in an SQS queue and use a fleet of EC2 instances to extract the metadata
Use a Kinesis data stream to store the file and use Lambda for processing
Upload files into an S3 bucket and use the Amazon S3 event notification to invoke a Lambda function to extract the metadata
A website developed using HTML, CSS, client-side JavaScript, and images needs to be hosted. Which solution is the MOST cost-effective?
Containerize the website and host it in AWS Fargate
Deploy a web server on an Amazon EC2 instance to host the website
Create an Amazon S3 bucket and host the website there
Configure an Application Load Balancer with an AWS Lambda target
RDS Reserved instances are available for multi-AZ deployments.
False
True
Amazon's ElastiCache uses which two engines?
Reddit & Memcrush
Redis & Memory
MyISAM & InnoDB
Redis & Memcached
How many copies of my data does RDS - Aurora store by default?
3
2
6
4
You can SSH into and control the operating system where your Amazon RDS MySQL instance is running.
True
False
With new RDS DB instances, automated backups are enabled by default?
False
True
DB security groups are used with DB instances that are not in a VPC and on the EC2-Classic platform. When you create a DB security group, you need to specify a destination port number.
False
True
What data transfer charge is incurred when replicating data between Availability Zones for your Amazon RDS MySQL in a Multi-AZ deployment?
The charge is double the standard data transfer charge.
The charge is half of the standard data transfer charge.
There is no charge associated with this action.
The charge is the same as the standard data transfer charge.
What happens to the I/O operations of a single-AZ RDS instance during a database snapshot or backup?
Nothing.
I/O operations will function normally.
I/O operations to the database are sent to a Secondary instance of a Multi-AZ installation (for the duration of the snapshot.)
I/O may be briefly suspended while the backup process initializes (typically under a few seconds), and you may experience a brief period of elevated latency.
Your business is building a new application that will store its entire customer database that data for different purposes. Large analytics jobs on the database are likely to cause other applications to not be able to get the query results they need to, before time out. Also, as your data grows, these analytics jobs will start to take more time, increasing the negative effect on the other applications. How do you solve the contention issues between these different workloads on the same data?
Enable Multi-AZ mode on the RDS instance.
Use ElastiCache to offload the analytics job data.
Create RDS Read-Replicas for the analytics work.
Run the RDS instance on the largest size possible.
