Wiley Quiz Reviews Flashcards
Which of the following best describes elasticity?
The ability of an application to increase or decrease compute resources to match changing demand.
Preconfiguring compute instances before they’re used to scale up an application is an element of scalability rather than elasticity.
Maximum EBS size under free tier
30GB
Post free tier usage options
- 10GB Glacier retrieval
2. 10 alarms and 10 metrics on Cloudwatch / month
Which of the following is a limitation of the AWS Simple Monthly Calculator?
Not all services are included.
The calculator pricing is kept up-to-date. You can specify very detailed configuration parameters.
Which of the following AWS documentation URLs points to the page containing an up-to-date list of service limits?
https://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html
Which is the best place to get a quick summary of this month’s spend for your account?
Answer: Billing & Cost Management Dashboard
The Cost Explorer and Cost and Usage Reports pages provide more in-depth and/or customized details. Budgets allow you to set alerts based on usage.
What is the main goal for creating a Usage budget type (in AWS Budgets)
Answer: To track particular categories of resource consumption
AWS Professional Services vs. AWS Partner Network
Professional Services = Evangelists
Partner Network = Devops Mercenaries
Group following Trusted adviser features into free and business/enterprise:
- MFA on root account
- Load balancer optimization
- Service Limits
- IAM Access Key Rotation
Business/Enterprise: Load Balance optimization & IAM Key Rotation
Free: MFA on root, Service limits
When you request a new virtual machine instance in EC2, your instance will automatically launch into the currently selected value of which of the following?
- service
- subnet
- az
- region
region
EC2 instances will automatically launch into the Region you currently have selected. You can manually select the subnet that’s associated with a particular Availability Zone for your new EC2 instance, but there’s no default choice.
Which of the following would be a valid endpoint your developers could use to access a particular Relational Database Service instance you’re running in the Northern Virginia Region?
rds.us-east-1.amazonaws.com
or
rds.amazonaws.com.us-east-1
rds.us-east-1.amazonaws.com
What are the most significant architectural benefits of the way AWS designed its Regions? (Select TWO.)
End users experience lower latency and compliance with local regulations
You want to improve the resilience of your EC2 web server. Which of the following is the most effective and efficient approach?
Launch parallel, load-balanced instances in multiple Availability Zones within a single AWS Region.
Auto scaling is an important working element of application high availability, but it’s not what most directly drives it (that’s load balancing). The most effective and efficient way to get the job done is through parallel, load-balanced instances in multiple Availability Zones, not Regions.
Which of the following most accurately describes a subnet within the AWS ecosystem?
The block of IP addresses assigned for use within a single Availability Zone
T/F EC2 load balancers can leverage edge locations
TRUE
