AWS S3 Quizzes well answered and graded A+

What is the availability of S3-OneZone-IA? A.) 99.99% B.) 100% C.) 99.50% D.) 99.90% C What is the minimum file size that I can store on S3? A.) 1 byte B.) 1KB C.) 0 bytes D.) 1MB C 00:51 01:36 You work for a major news network in Europe. They have just released a new app which allows users to report on events as and when they happen using their mobile phone. Users are able to upload pictures from the app and then other users will be able to view these pics. Your organization expects this app to grow very quickly, essentially doubling it's user base every month. The app uses S3 to store the media and you are expecting sudden and large increases in traffic to S3 when a major news event takes place (as people will be uploading content in huge numbers). You need to keep your storage costs to a minimum however and it does not matter if some objects are lost. Which storage media should you use to keep costs as low as possible? A.) S3 - OneZone-IA B.) S3 - IA C.) S3 D.) Glacier A You have uploaded a file to S3. What HTTP code would indicate that the upload was successful? A. HTTP 404 B. HTTP 501 C. HTTP 307 D. HTTP 200 D You run a meme creation website that frequently generates meme images. The original images are stored in S3 and the metadata about the memes are stored in DynamoDB. You need to store the memes themselves in a low-cost storage solution. If an object is lost, you have created a Lambda function that will automatically recreate this meme using the original file in S3 and the metadata in DynamoDB. Which storage solution should you consider to store this non-critical, easily reproducible data on in the most cost-effective solution as possible? a) S3 b) S3 - IA (Infrequently Accessed Storage) c) S3 - OneZone-IA d) Glacier C You work for a busy digital marketing company who currently store their data on premise. They are looking to migrate to AWS S3 and to store their data in buckets. Each bucket will be named after their individual customers, followed by a random series of letters and numbers. Once written to S3 the data is rarely changed, as it has already been sent to the end customer for them to use as they see fit. However on some occasions, customers may need certain files updated quickly, and this may be for work that has been done months or even years ago. You would need to be able to access this data immediately to make changes in that case, but you must also keep your storage costs extremely low. The data is not easily reproducible if lost. Which S3 storage class should you choose to minimize costs and to maximize retrieval times? a) S3 b) S3 - IA (Infrequently Accessed Storage) c) S3 - OneZone-IA d) Glacier B What is Amazon Glacier? A.) A highly secure firewall designed to keep everything out B.) A tool that allows you to "freeze" an EBS volume C.) It is a tool used to resurrect deleted EC2 snapshots D.) An AWS service designed for long term data archival D How many S3 buckets can you have per account by default? A.) 50 B.) 100 C.) 10 D.) 20 B You run a popular photo sharing website that depends on S3 to store content. You generate revenue from your website via paid for adverts, however, you have discovered that other websites are linking directly to the images on your site, and not to the HTML pages that serve the content. This means that people are not seeing your adverts and every time a request is made to S3 to serve an image it is costing your business money. How could you resolve this issue? A.) Use CloudFront to serve the static content. B.) Remove the ability for images to be served publicly to the site and then use signed URLs with expiry dates. C.) Use security groups to blacklist the IP addresses of the sites that do this. D.) Use EBS rather than S3 to store the content. B You are a solutions architect who works with a large digital media company. The company has decided that they want to operate within the Japanese region and they need a bucket called "testbucket" set up immediately to test their web application on. You log in to the AWS console and try to create this bucket in the Japanese region however you are told that the bucket name is already taken. What should you do to resolve this? A.) Change your region to Korea and then create the bucket "testbucket". B.) Raise a ticket with AWS and ask them to release the name "testbucket" to you. C.) Bucket names are global, not regional. This is a popular bucket name and is already taken. You should choose another bucket name. D.) Run a WHO IS request on the bucket name and get the registered owners email address. Contact the owner and ask if you can purchase the rights to the bucket. C S3 has eventual consistency for which HTTP Methods? A.) PUTS of new objects and DELETES B.) Overwrite PUTS and DELETES C.) PUTS of new objects and UPDATES D.) UPDATES and DELETES B What does S3 stand for? A.) Simple SQL Service B.) Straight Storage Service C.) Simple Storage Service D.) Simplified Serial Sequence C You have been asked to advise on a scaling concern. The client has an elegant solution that works well. As the information base grows they use CloudFormation to spin up another stack made up of an S3 bucket and supporting compute instances. The trigger for creating a new stack is when the PUT rate approaches 100 PUTs per second. The problem is that as the business grows that the number of buckets is growing into the hundreds and will soon be in the thousands. You have been asked what can be done to reduce the number of buckets without changing the basic architecture. A.) Upgrade all buckets to S3 provision IOPS to achieve better performance B.) Refine the key hashing to randomize the name key to achieve the potential of 300 PUTs per second C.) Change the trigger level to around 3,000 as S3 can now accommodate much higher PUT and GET levels D.) Set up multiple accounts so that the per account hard limit on S3 buckets is avoided C You work for a health insurance company who collects large amounts of documents regarding patients health records. This data will be used usually only once when assessing a customer and will then need to be securely stored for a period of 7 years. In some rare cases you may need to retrieve this data within 24 hours of a claim being lodged. Which storage solution would best suit this scenario? You need to keep your costs as low as possible. A.) S3 B.) S3 - IA (Infrequently Accessed Storage) C.) S3 - OneZone-IA D.) Glacier D S3 has what consistency model for PUTS of new objects? A.) Usual consistency B.) Eventual consistency C.) Read after write consistency D.) Write after read consistency C The difference between S3 and EBS is that EBS is object based where as S3 is block based. A.) True B.) False B One of your users is trying to upload a 7.5GB file to S3 however they keep getting the following error message - "Your proposed upload exceeds the maximum allowed object size". What is a possible solution for this? A.) Design your application to use the multi-part upload API for all objects. B.) Design your application to use large object upload API for this object. C.) Raise a ticket with AWS to increase your maximum object size. D.) Log in to the S3 console, click on the bucket and then click properties. You can then increase your maximum object size to 1TB. A