AWS SYSOPS Exam Prep UPDATED ACTUAL Questions and CORRECT Answers
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Course
AWS SYSOPS
Institution
AWS SYSOPS
AWS SYSOPS Exam Prep UPDATED
ACTUAL Questions and CORRECT
Answers
Why should you configure the SSL certificate on the ELB - CORRECT ANSWER-
Having the SSL certificate verified on the EC2 instance can be very taxing on the CPU,
costing resources and money and leading to a performante bottlene...
AWS SYSOPS Exam Prep UPDATED
ACTUAL Questions and CORRECT
Answers
Why should you configure the SSL certificate on the ELB - CORRECT ANSWER✔✔-
Having the SSL certificate verified on the EC2 instance can be very taxing on the CPU,
costing resources and money and leading to a performante bottleneck
What is OpsWorks? - CORRECT ANSWER✔✔- 1) OpsWorks allows you to create stacks of
AWS resources to automate and maintain applications
2) At its core, OpsWorks is made up of "stacks"
3) Each application or "grouping" of resources is known as a "stack"
4) Uses Chef an Puppet
What is a CPU credit? - CORRECT ANSWER✔✔- 1) CPU can run at 100% for 1 minute per
CPU credit.
2) Without credits, you can only run at 10 % of CPU capacity, which is called the "Baseline"
performance (for t1 micro)
What are two facts about RDS automated Backups ? - CORRECT ANSWER✔✔- When
restoring from a backup, only the default DB parameters and security groups will be applied.
During restore, you have the ability to change to a different DB engine.
What are the layers of the OpsWorks Stack? - CORRECT ANSWER✔✔- 1) A layer is a
component of the stack
2) An instance must be assigned to at least one layer.
3) Chef recipes determine what to install based on the "layer" the instance is assigned to.
4) Layers can be extended by creating custom Chef recipes.
What is the ELB BackendConnectionErrors metic used for ? - CORRECT ANSWER✔✔-
BackendConnectionErrors : The count of the number of connections that were not
successfully established between the load balancer and the registered instance
-Average stat is most useful
, -Will report errors for all AZs
What is the GPU instance type used for? - CORRECT ANSWER✔✔- Used for parallel
processing (scientific, engineering, rendering type application)
EC2 Backups (Not Automated) - CORRECT ANSWER✔✔- 1) Backup times are important,
as snapshots degrade performance.
2) Stored in S3.
3) Can create automated backups using API/CLI.
4) Are incremental in nature:
Snapshots only store incremental changes.
- Only charged for incremental storage.
Snapshot still contains the base snapshot data
Purchasing Reserved Instances: Minimum Required Capacity - CORRECT ANSWER✔✔- 1)
Type of application (single vs. multi-instance): - High Availability
2) Determine MIN capacity and heavy utilization (100% ).
3) Estimate MEDIUM capacity requirements (50%-70%)
4) Estimate LIGHT capacity requirements (0%-30%)
How do you ensure elasticity as a SysAdmin? - CORRECT ANSWER✔✔- 1) Elasticity
allows your application to "stretch" out and "retract" back in based on utilization.
2) Pay-for-what-you-need concept.
You need to enable internet access to your EC2 instances in a private subnet, what is the most
secure way to provide egress only internet access? - CORRECT ANSWER✔✔- Configure a
NAT gateway and add a route to the internet via the NAT in your route table
You're configuring Load Balancer. What can you do to ensure that a user request always goes
to the same server? - CORRECT ANSWER✔✔- Enable sticky sessions
A photo sharing application is growing in popularity. The application uses S3 to store
photographs. Your boss has asked you how you can improve the upload and download times
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