What are characteristics of Amazon S3? (Choose two.)
AD
The total volume of data and number of objects you can store are unlimited. Individual Amazon S3 objects can range in size from a minimum of 0 bytes to a maximum of 5 terabytes. The largest object that can be uploaded in a single PUT is 5 gigabytes. For objects larger than 100 megabytes, customers should consider using the Multipart Upload capability.
Reference:
https://aws.amazon.com/s3/faqs/
You receive a frantic call from a new DBA who accidentally dropped a table containing all your customers.
Which Amazon RDS feature will allow you to reliably restore your database to within 5 minutes of when the mistake was made?
D
Reference:
https://aws.amazon.com/rds/details/#ha
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_PIT.html
A media company produces new video files on-premises every day with a total size of around 100 GBS after compression All files have a size of 1 -2 GB and need to be uploaded to Amazon S3 every night in a fixed time window between 3am and 5am Current upload takes almost 3 hours, although less than half of the available bandwidth is used.
What step(s) would ensure that the file uploads are able to complete in the allotted time window?
B
https://aws.amazon.com/blogs/aws/amazon-s3-multipart-upload/
You are running a web-application on AWS consisting of the following components an Elastic Load Balancer (ELB) an Auto-Scaling Group of EC2 instances running Linux/PHP/Apache, and Relational DataBase Service (RDS) MySQL.
Which security measures fall into AWS's responsibility?
B
https://d0.awsstatic.com/whitepapers/aws-security-whitepaper.pdf
You use S3 to store critical data for your company Several users within your group currently have lull permissions to your S3 buckets You need to come up with a solution mat does not impact your users and also protect against the accidental deletion of objects.
Which two options will address this issue? (Choose two.)
AB
Versioning allows easy recovery of previous file version.
MFA delete requires additional MFA authentication to delete files.
Won't impact the users current access.
Reference:
http://docs.aws.amazon.com/AmazonS3/latest/dev/Versioning.html http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingMFADelete.html
An organization's security policy requires multiple copies of all critical data to be replicated across at least a primary and backup data center. The organization has decided to store some critical data on Amazon S3.
Which option should you implement to ensure this requirement is met?
D
You specify a region when you create your Amazon S3 bucket. Within that region, your objects are redundantly stored on multiple devices across multiple facilities. Please refer to Regional Products and Services for details of Amazon S3 service availability by region.
Reference:
https://aws.amazon.com/s3/faqs/
You are tasked with setting up a cluster of EC2 Instances for a NoSQL database. The database requires random read I/O disk performance up to a 100,000 IOPS at 4KB block side per node.
Which of the following EC2 instances will perform the best for this workload?
C
The SSD storage is local to the instance. Using PV virtualization, you can expect 120,000 random read IOPS (Input/Output Operations Per Second) and between
10,000 and 85,000 random write IOPS, both with 4K blocks.
For HVM and Windows AMIs, you can expect 90,000 random read IOPS and 9,000 to 75,000 random write IOPS.
Reference:
https://aws.amazon.com/blogs/aws/new-high-io-ec2-instance-type-hi14xlarge/
When an EC2 EBS-backed (EBS root) instance is stopped, what happens to the data on any ephemeral store volumes?
A
However, data in the instance store is lost under the following circumstances:
The underlying disk drive fails -
The instance stops -
The instance terminates -
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/InstanceStorage.html#instance-store-lifetime
Your team Is excited about the use of AWS because now they have access to programmable Infrastructure" You have been asked to manage your AWS infrastructure in a manner similar to the way you might manage application code You want to be able to deploy exact copies of different versions of your infrastructure, stage changes into different environments, revert back to previous versions, and identify what versions are running at any particular time
(development test QA. production).
Which approach addresses this requirement?
D
OpsWorks for Chef Automate automatically performs updates for new Chef minor versions.
OpsWorks for Chef Automate does not perform major platform version updates automatically (for example, a major new platform version such as Chef Automate
13) because these updates might include backward-incompatible changes and require additional testing. In these cases, you must manually initiate the update.
Reference:
https://aws.amazon.com/opsworks/chefautomate/faqs/
You have a server with a 5O0GB Amazon EBS data volume. The volume is 80% full. You need to back up the volume at regular intervals and be able to re-create the volume in a new Availability Zone in the shortest time possible. All applications using the volume can be paused for a period of a few minutes with no discernible user impact.
Which of the following backup methods will best fulfill your requirements?
A
EBS volumes can only be attached to EC2 instances within the same Availability Zone.
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-restoring-volume.html
