Monday Morning AWS!!!

YOUR COMPANY IS CREATING A PHOTO SHARING APP. ONE OF THE REQUIREMENTS IS THAT USERS CAN UPLOAD AND STORE MULTIPLE REVISIONS OF THE SAME PHOTO. WHAT STORAGE SOLUTION WOULD BE BEST PLACED TO MEET THIS REQUIREMENT?

• RDS with binary blog versioning

• Amazon EFS

• Amazon S3

• Amazon ESB

YOU WANT TO SCALE YOUR SAAS PRODUCT BASED ON THE DEMAND YOU RECEIVE. YOU CAN NOT PREDICT A PATTERN FOR SPIKES IN TRAFFIC BUT YOU NEED AT LEAST 2 INSTANCE RUNNING AT ANY ONE TIME. HOW WOULD YOU SETUP YOUR SYSTEM TO HANDLE SPIKES IN TRAFFIC? CHOOSE 2.

• Create 2 EC2 instances and manually add more based on CloudWatch alerts

• Create an auto scaling group with a minimum number of instances set to 2

• Put your instances behind an application load balancer

• Create 2 EC2 M4 10xLarge instance to have enough processing power to handle peak loads

YOU HAVE A LAMBDA FUNCTION THAT NEEDS TO ACCESS AN S3 BUCKET. HOWEVER IT CANNOT ACCESS THIS RESOURCE OVER THE INTERNET. WHICH AWS SERVICE WILL ACCOMMODATE THIS?

• Storage Gateway

• IAM Role

• NAT gateway

• VPC endpoint

WHEN YOU EXPOSE A SERIES OF EC2 INSTANCES BEHIND A ELASTIC LOAD BALANCER IN A VPC WITH INTERNET ACCESS VIA A NAT GATEWAY. WHEN DOWNLOADING UPDATES WHAT IS THE POTENTIALLY BOTTLE NECK IN THIS CONFIGURATION?

• The NAT gateway

• The EC2 instances

• The ELB

• The VPC itself

YOU HAVE 70TB OF DATA THAT YOU WANT TO MIGRATE INTO THE CLOUD, SPECIFICALLY S3 BUCKETS. USING A TRADITIONAL BROADBAND MODEM WOULD BE TO SLOW. WHAT AWS SCENARIO BEST SOLVES THIS PROBLEM?

• Create an amazon storage gateway link and begin transferring data that way.

• Request an AWS snowball, transfer the data to it and mail it back to amazon so they can upload it directly to their infrastructure.

• Drive to a datacenter and load the data yourself.

• Purchase several broadband internet connections and run the upload in parallel.

YOU WANT TO RUN AN EC2 INSTANCE BUT YOU WANT TO KEEP THE COSTS AS LOW AS POSSIBLE. WHEN SELECTING AN EBS VOLUME WHICH ONE IS MOST APPROPRIATE FOR THIS BRIEF?

• EBS Provisioned IOPS SSD (io1)

• EBS General Purpose SSD (gp2)*

• Throughput Optimized HDD (st1)

• Cold HDD (sc1)

YOUR COMPANY HAS A LARGE SOCIAL NETWORK PRESENCE AND AS A RESULT HAS ACCESS TO LARGE AMOUNTS OF DATA VIA API FEEDS FROM THOSE SOCIAL NETWORKS. IF YOU WANTED TO ANALYSE AND PROCESS THEM IN REAL TIME WHAT AWS SERVICE WOULD BEST SUIT YOUR NEEDS?

• AWS Kinesis

• AWS SQS

• EC2 instance with a Message queue installed

• There is no service for this scenario

YOU’RE CREATING AN APPLICATION IN YOUR STARTUP THAT LETS USERS SIGN UP AND CONSUME ONLINE ELEARNING COURSES. YOU WANT TO DELIVER CONTENT ON DEMAND BUT YOU HAVE REQUIREMENTS FOR IT TO BE HIGHLY SCALABLE AND THE MOST COST EFFICIENT SOLUTION. SELECT THE MOST APPROPRIATE AWS SERVICES TO MEET THESE REQUIREMENTS. CHOOSE 2.

• Lambda

• S3

• EC2

• FS

WHICH FILE STORAGE SOLUTION WOULD ALLOW YOU TO SHARE DATA BETWEEN EC2 INSTANCES ?

• EFS

• EBS

• Storage Gateway

• S3

YOU WANT TO CONNECT INSTANCES IN YOUR VPC TO SERVICES HOSTED IN AWS WITHOUT USING THE INTERNET, WHAT SOLUTION BEST FITS THIS SCENARIO?

• use a NAT gateway with routes 0.0.0.0/0

• use an Internet gateway

• attach a VPC endpoint with routes 0.0.0.0/0

• move the services into your VPC