Module 4 - Adding a Compute Layer
Which attributes are reasons to chose Amazon Elastic Compute Cloud (Amazon EC2)?
1. Ability to run any type of workload 2. Complete control of computing resources
It is possible to create an NFS share on an Amazon EBS-backed Linux instance by installing and configuring an NFS server on the instance. In this way, multiple Linux systems can share the file system of that instance. Which advantages does Amazon Elastic File System (Amazon EFS) provide, compared to this solution?
1. Highly Available 2. Automatic Scaling
What are the benefits of using an Amazon Machine Image (AMI)?
1. Launching instances with the same configuration 2. Selling or sharing software solutions packaged as an AMI 3. Using an AMI as a server backup for Amazon Elastic Compute Cloud (Amazon EC2) instances
Which descriptions of Amazon Elastic Compute Cloud (Amazon EC2) pricing options are correct?
1. On-Demand Instances enable you to pay for compute capacity by usage time with no long term commitments 2. Spot instances offer spare compute capacity at discounted prices, and can be interrupted.
A workload requires high read/write access to large local datasets. Which instance types would perform best for this workload?
1. Storage Optimized 2. Memory Optimized
Which feature does Amazon FSx for Windows File Server provide?
Fully managed Windows file servers
A transactional workload on an Amazon Elastic Compute Cloud (Amazon EC2) instance performs high amount of frequent read and write operations. Which Amazon Elastic Book Store (Amazon EBS) volume type is best for this workload?
Provisioned IOPS SSD volume type
A company has three high-performance computing instances that must communicate with each other. The company would like to achieve maximum network performance between instances. The most important requirement is that these systems do not share the same rack. Which placement strategy should they use?
Spread
A system administrator must change the instance types of multiple running Amazon Elastic Compute Cloud (Amazon EC2) instances. The instances were launched with a mix of Amazon Elastic Block Store (Amazon EBS) backed Amazon Machine Images (AMIs) and instance store backed AMIs. Which method is a valid way to change the instance type?
Stop an Amazon EBS-backed instance, change its instance type, and start the instance.
An application requires the media access control (MAC) address of the host Amazon Elastic Compute Cloud (Amazon EC2) instance. The architecture uses an AWS Auto Scaling group to dynamically launch and terminate instances. Which way is best for the application to obtain the MAC address?
Use the user data of each instance to access the MAC address through the instance metadata