Amazon Elastic Block Store (EBS)
| Overview |
|---|
| Amazon Elastic Block Store (EBS) is an easy to use, high performance block storage service designed for use with Amazon Elastic Compute Cloud (EC2) for both throughput and transaction intensive workloads at any scale. A broad range of workloads, such as relational and non-relational databases, enterprise applications, containerized applications, big data analytics engines, file systems, and media workflows are widely deployed on Amazon EBS. |
1. A company has a collection of EC2 Instances that are backed by EBS Volumes. The IT policy of the company states that all data must be backed up in an efficient manner. What is the MOST resilient way to backup the volumes?
A. Take regular EBS Snapshots.
B. Enable EBS Volume Encryption.
C. Create a script to copy data to an EC2 Instance store.
D. Mirror data across 2 EBS Volumes.
2. A company has a requirement for block level storage which would be able to store 800GB of data. Also, encryption of the data is required. Which of the following can be used in this case?
A. AWS EBS Volumes
B. AWS S3
C. AWS Glacier
D. AWS EFS
3. A company has a set of EBS Volumes that need to be catered to in case of a disaster. How can one achieve this in an efficient manner using the existing AWS services?
A. Create a script to copy the EBS Volume to another Availability Zone.
B. Create a script to copy the EBS Volume to another region.
C. Use EBS Snapshots to create the volumes in another region.
D. Use EBS Snapshots to create the volumes in another Availability Zone.
4. A company has a set of Linux based instances on their On-premises infrastructure. They want to have an equivalent block storage device on AWS which can be used to store the same datasets as on the Linux based instances. As an architect, which of the following storage devices would you recommend?
A. AWS EBS
B. AWS S3
C. AWS EFS
D. AWS DynamoDB
5. A company is planning on building a 2-tier architecture which consists of a web server and a database server. This will be hosted on EC2 Instances accordingly. The database server will experience a lot of read/write operations whereas the web server will have a standard workload. Which of the following underlying EBS volumes are optimum to use for the underlying EC2 Instances? Choose 2 answers from the options given below.
A. General Purpose SSD for the web server
B. Provisioned IOPS for the web server
C. General Purpose SSD for the database server
D. Provisioned IOPS for the database server
6. A company is planning on hosting a set of EC2 Instances on the AWS Cloud. They also need to ensure that data can be stored on the EC2 Instances. Which block level storage device could make this possible?
A. Amazon S3
B. Amazon Glacier
C. Amazon Storage Gateway
D. Amazon EBS Volumes
7. A company is planning to deploy an application in AWS. This application requires an EC2 Instance to continuously perform log processing activities requiring Max 500MiB/s of data throughput. Which of the following is the best storage option for this requirement?
A. EBS IOPS
B. EBS SSD
C. EBS Throughput Optimized
D. EBS Cold Storage
8. A company is required to use the AWS RDS service to host a MySQL database. This database is going to be used for production purposes and is expected to experience a high number of read/write activities. Which of the below underlying EBS Volume types would be ideal for this database?
A. General Purpose SSD
B. Provisioned IOPS SSD
C. Throughput Optimized HDD
D. Cold HDD
9. An application currently stores all its data on Amazon EBS Volumes. All EBS volumes must be backed up durably across multiple Availability Zones.
What is the MOST resilient way to backup the volumes?
A. Take regular EBS snapshots.
B. Enable EBS volume encryption
C. Create a script to copy data to an EC2 Instance store.
D. Mirror data across 2 EBS volumes.
10. An application is currently hosted on an EC2 Instance which has attached EBS Volumes. The data on these volumes is frequently accessed. But after a duration of a week, the documents need to be moved to infrequent access storage. Which of the following EBS volume type provides cost efficiency for the moved documents?
A. EBS Provisioned IOPS SSD
B. EBS Throughput Optimized HDD
C. EBS General Purpose SSD
D. EBS Cold HDD
11. An application needs to have a database hosted in AWS. The database will be hosted on an EC2 Instance. The application itself does not have a high usage ratio, hence the reads and writes on the database would be limited to a bare minimum. What is the MOST suitable storage type that could be used by the underlying EC2 instance hosting the database?
A. Amazon EBS provisioned IOPS SSD
B. Amazon EBS Throughput Optimized HDD
C. Amazon EBS General Purpose SSD
D. Amazon EFS
12. An application requires an EC2 Instance for continuous batch processing activities requiring a maximum data throughput of 500MiB/s. Which of the following is the best storage option for this?
A. EBS IOPS
B. EBS SSD
C. EBS Throughput Optimized
D. EBS Cold Storage
13. An application requires storage for an EC2 Instance for storing infrequently accessed data. Which of the following is a cost-effective, ideal storage option here?
A. EBS IOPS
B. EBS SSD
C. EBS Throughput Optimized
D. EBS Cold HDD
14. An application with a 150 GB relational database runs on an EC2 Instance. This application will be used frequently with a high database reads and writes requests. What is the most cost-effective storage typefor this application?
A. Amazon EBS Provisioned IOPS SSD
B. Amazon EBS Throughput Optimized HDD
C. Amazon EBS General Purpose SSD
D. Amazon EFS
15. An application with a 150 GB relational database runs on an EC2 Instance.
While the application is used infrequently with small peaks in the morning and evening, what is the MOST cost effective storage type among the options below?
A. Amazon EBS provisioned IOPS SSD
B. Amazon EBS Throughput Optimized HDD
C. Amazon EBS General Purpose SSD
D. Amazon EFS
16. An IT company would like to secure their resources in their AWS Account. Which of the following options is able to secure data at rest and in transit in AWS? Choose 3 answers from the options given below.
A. Encrypt all EBS volumes attached to EC2 Instances.
B. Use Server-Side Encryption for S3.
C. Use SSL/HTTPS when using the Elastic Load Balancer.
D. Use IOPS Volumes when working with EBS Volumes on EC2 Instances.
17. Currently a company makes use of EBS snapshots to back up their EBS Volumes. As a part of the business continuity requirement, these snapshots need to be made available in another region. How can this be achieved?
A. Directly create the snapshot in the other region.
B. Create Snapshot and copy the snapshot to new region.
C. Copy the snapshot to an S3 bucket and then enable Cross-Region Replication for thebucket.
D. Copy the EBS Snapshot to an EC2 instance in another region.
18. In A company’s business continuity department is worried about the EBS Volumes hosted in AWS and wants to ensure that redundancy is achieved for the same. What must be done to achieve this in a cost-effective manner?
A. Nothing, since by default, EBS Volumes are replicated within their Availability Zones.
B. Copy the data to S3 bucket for data redundancy.
C. Create EBS Snapshots in another Availability Zone for data redundancy.
D. Copy the data to a DynamoDB table for data redundancy.
19. There is a requirement for Block-level storage to store 500GB of data. Data Encryption is also required. Which of the following can be used in such a case?
A. AWS EBS Volumes
B. AWS S3
C. AWS Glacier
D. AWS EFS
20. There is a requirement to host a database application having a lot of resource-intensive reads and writes. Which of the below option is most suitable?
A. EBS Provisioned IOPS
B. EBS SSD
C. EBS Throughput Optimized
D. EBS Cold Storage
21. There is a requirement to host a database on an EC2 Instance. It is also required that the EBS volume should support 12,000 IOPS.
Which Amazon EBS volume type meets the performance requirements of this database?
A. EBS Provisioned IOPS SSD
B. EBS Throughput Optimized HDD
C. EBS General Purpose SSD
D. EBS Cold HDD
22. There is a requirement to host a database on an EC2 Instance. The EBS Volume is required to support a high rate of IOPS since a large number of read and write requests are expected on the database.
Which Amazon EBS Volume type can meet the performance requirements of this database?
A. EBS Provisioned IOPS SSD
B. EBS Throughput Optimized HDD
C. EBS General Purpose SSD
D. EBS Cold HDD
23. You are the architect for a business intelligence application which reads data from a MySQL database hosted on an EC2 Instance. The application experiences a high number of read and write requests. Which Amazon EBS Volume type can meet the performance requirements of this database?
A. EBS Provisioned IOPS SSD
B. EBS Throughput Optimized HDD
C. EBS General Purpose SSD
D. EBS Cold HDD
24. You have configured an Auto-scaling group for which the minimum running instance is 2 and maximum running instance is 10. For the past 30 minutes, all five instances have been running at 100 CPU Utilization; however, the Auto Scaling group has not added any more instances to the group. What is the most likely cause for this? Choose 2 answers from the options given below.
A. You already have 20 on-demand instances running.
B. The Auto Scaling group’s MAX size is set atfive.
C. TheAuto Scaling group’s scale down policy is too high.
D. The Auto Scaling group’s scale up policy has not yet been reached.
25. You have instances hosted in a private subnet in a VPC. There is a need for the instances to download updates from the Internet. As an architect, what change would you suggest to the IT Operations team which would also be the most efficient and secure?
A. General Purpose SSD
B. Provisioned IOPS SSD
C. Throughput Optimized HDD
D. Cold HDD