Knowledge Check

AWS EC2 Module 5 Knowledge Check

Question 1

Which attributes are reasons to choose Amazon EC2? (Select TWO.)

Ability to run any type of workload ✓
AWS management of operating system (OS) patches
Ability to run serverless applications
Complete control of computing resources ✓
AWS management of operating system (OS) security

Question 2

What are the benefits of using an Amazon Machine Image (AMI)? (Select THREE.)

Launching instances with the same configuration ✓
Using an AMI as a server backup for Amazon EC2 instances ✓
Automating security group settings for instances
Selling or sharing software solutions packaged as an AMI ✓
Migrating data from on premises to Amazon EC2 instances
Updating systems by patching their AMI

Question 3

A system administrator must change the instance types of multiple running 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?

Change the instance type of an Amazon EBS backed instance without stopping it
Change the instance type of an instance-store-backed instance without stopping it
Stop an instance-store-backed instance, change its instance type, and start the instance
Stop an Amazon EBS backed instance, change its instance type, and start the instance ✓

Question 4

A workload requires high read/write access to large local datasets. Which instance types would perform BEST for this workload? (Select TWO.)

General purpose
Accelerated computing
Storage optimized ✓
Compute optimized
Memory optimized ✓

Question 5

An application requires the media access control (MAC) address of the host Amazon EC2 instance. The architecture uses an AWS Auto Scaling group to dynamically launch and terminate instances. What is the BEST way for the application to obtain the MAC address?

Include the MAC address in the Amazon Machine Image (AMI) that is used to launch all of the instances in the AWS Auto Scaling group
Include the MAC address in a custom AMI for each instance in the AWS Auto Scaling group
Use the user data of each instance to access the MAC address through the instance metadata ✓
Write the MAC address in the application configuration file of each instance

Question 6

Which statements about user data are correct? (Select TWO.)

User data cannot be run while the instance is stopped
The cloud architect must run the /var/lib/cloud/instance/scripts/part-001 command for the user data script to run again ✓
By default, user data runs only once, when an instance is launched ✓
The cloud architect must remove the config_user_scripts file to rerun the user data scripts
By default, user data runs after every instance restart

Question 7

A transactional workload on an Amazon EC2 instance performs high amounts of frequent read and write operations. Which Amazon Elastic Block Store (Amazon EBS) volume type is BEST for this workload?

Cold hard disk drive (HDD)
Throughput Optimized hard disk drive (HDD)
Provisioned IOPS solid state drive (SSD) ✓
General Purpose solid state drive (SSD)

Question 8

It is possible to create an NFS share on an Amazon Elastic Block Store (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? (Select TWO.)

No need for backups
High availability ✓
Strong consistency
File locking
Automatic scaling ✓

Question 9

Which feature does Amazon FSx for Windows File Server provide?

Fully managed Windows file servers ✓
Backup solution for on-premises Windows file servers
Amazon management agent for Windows file servers
Microsoft Active Directory server for Windows file servers

Question 10

Which descriptions of Amazon EC2 pricing options are correct? (Select TWO.)

With On-Demand Instances, customers can pay for compute capacity by usage time with no long-term commitments ✓
Spot Instances offer spare compute capacity at discounted prices and can be interrupted ✓
Savings Plans are budgeting tools that help customers manage Amazon EC2 costs
Reserved Instances are physical servers that are reserved exclusively for customer
Dedicated Hosts are servers that are dedicated to one purpose, such as a firewall