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AWS architect associate - Detailed Questions
Terms in this set (30)
Amazon Glacier is designed for____ & ______
infrequently accessed data & data archives.
This type of storage is a device like a RAM disk physically attached to your virtual server and characteristically it gets completely wiped every reboot
Your ec2 instance
This type of storage is suitable for temporary storage, but nothing that needs to survive something as simple as a reboot.
_____is a service where you buy devices more akin to a hard disk that can be attached to one (and only one -at the time of writing) EC2 instance
EBS (Elastic Block Store)
This storage option is best for storing your EC2 server images (Amazon Machine Images aka AMIs), static content e.g. for a web site, input or output data files (like you've use an SFTP site), or anything that you'd treat like a file.
You configured ELB to perform health checks on these EC2 instances. If an instance fails to pass health checks what can we assume the ELB will do?
The ELB stops sending traffic to the instance that failed its health check
These two items handle replacement of instances when they are configured. Then when an instance fails the health checks,presumably because it is down, it is these two items that will decide whether we now need to add another server to compensate
autoscaling group & launch configuration
A _________ tells AWS how to stand up a bootstrapped server that once up is ready to do work without any human intervention
This tells AWS where it can create servers : which launch configuration to use, the minimum and maximum allowed servers in the group, and how to scale up and down.
Auto Scaling Group
You are building a system to distribute confidential training videos to employees. Using CloudFront, what method could be used to serve content that is stored in S3, but not publically accessible from S3 directly?
Create an Origin Access Identity known as, OAI for CloudFront and grant access to the objects in your S3 bucket to that OAI.
You can restrict access to S3 content by creating a special Cloudfront user called:
origin access identiy (OAI) You restrict access to Amazon S3 content by creating an origin access identity, which is a special CloudFront user
An AWS account can have up to ____CloudFront origin access identities.
These two actions will occur when an EC2 instance in a VPC (Virtual Private Cloud) with an associated Elastic IP is stopped and started
All data on instance-store devices will be lost, a very abstract answer the underlying host for the instance is changed
True or false Elastic IPs are sticky until re-assigned
True Elastic Ips are sticky until the instance or volume they are associated with is deleted
EBS devices are ______of EC2 instances and by default _____them (unless configured otherwise). All data on Instance storage however will be lost and also on the root (/dev/sda1) partition of S3 backed servers
EBS devices are independent of EC2 instances and by default outlive them (unless configured otherwise). All data on Instance storage however will be lost and also on the root (/dev/sda1) partition of S3 backed servers
In the basic monitoring package for EC2, Amazon CloudWatch provides the following metrics:
Hypervisor visible metrics such as CPU utilization
Amazon needs to know this anyway to provide IaaS, so it seems natural that they share it.
Which is an operational process performed by AWS for data security?
Decommissioning of storage devices using industry-standard practices
To protect S3 data from both accidental deletion and accidental overwriting, you should:
enable S3 versioning on the bucket
S3 Versioning means
S3 versioning means that all versions of a file are kept and retrievable at a later date (by making a request to the bucket, using the object ID and also the version number). The only charge for having this enabled is from the fact that you will incur more storage. When an object is deleted, it will still be accessible just not visible.
Define a Placement Group
A placement group is a logical grouping of instances within a single Availability Zone
using these types od groups enables applications to get the full-bisection bandwidth and low-latency network performance required for tightly coupled, node-to-node communication typical of High Performance Computing (HPC) on AWS.
For databases used in production or pre production you should consider two options
Multi-AZ deployment for high availability and provisioned IOPS for fast, consistent performance
For Relational Database, the setting of provisioned IOPS storage does what
provides fast, consistent performance
for a DB instance the default setting for minor upgrades is set to
yes, allow auto minor version upgrades
What 3 things must you provide the DB instance during setup
The DB instance Identifer, the master username, the master password
in DB management options what options exist and what are they set to on default
Enable Automatic Backups, set to yes on default
backup retention period-the daily time range which automated backups are created if automated backups are created is default set to 1 day, the backup window-is set to no preference, the weekly time range
_____ is a web service that gives you access to a ______ that can be used to store messages while waiting for a computer to process them. This allows you to quickly build message queuing applications that can be run on any computer on the internet.
Amazon SQS is a web service that gives you access to a message queue that can be used to store messages while waiting for a computer to process them. This allows you to quickly build message queuing applications that can be run on any computer on the internet.
If you choose to delete a DB instance on the management console what question might you be asked in regards to backups
You will be asked if you wish to create a final snapshot
If you choose not to create a final snapshot for a DB instance what will happen to the automated snapshot associated with the instance?
The automated snapshot will be deleted
fill in the 3 blanks:
____Instances allow us to optimize processing costs - and ____allows us to orchestrate the process in a distributed and asynchronous manner & ____facilitates the storage of intermediate and final processing results
Spot Instances + SQS + S3 = Magic - Spot Instances allow us to optimize processing costs - Amazon SQS allows us to orchestrate the process in a distributed and asynchronous manner - Amazon Simple Storage Service (S3) facilitates the storage of intermediate and final processing results