Three Models of Software Deployment ANS✔✔ Cloud-based: Everything
hosted on cloud servers
On-premises/private cloud: Everything hosted on local servers
Hybrid: Mix of both
VPC Flow Logs ANS✔✔ VPC feature that can be used to capture information
about incoming and outgoing traffic in an AWS VPC infrastructure?
Benefits of Cloud model ANS✔✔ -Trade upfront (investment) expenses in
variable expenses
-No need to run your own servers
-No need to stick to a tight "capacity"
-Lower variable costs with more global users aggregating in the cloud
(economies of scale)
-Very fast to obtain needed resources
-Deploy around the world quickly and easily
AWS Service for hosting VMs on the cloud ANS✔✔ EC2
,How does EC2 manage allocated resources between different VMs hosted on
the same server (multi tenancy) ANS✔✔ With the use of a hypervisor
Instance Type ANS✔✔ Pre-built configurations (CPU, Mem, Network
Bandwidth, etc) of instances
Instance Family and their types ANS✔✔ Collection of related instance types
that are optimized for certain needs
-General Purpose (Balanced)
-Compute Optimized
-Memory Optimized
-Accelerated Computing (Hardware Acceleration)
-Storage Optimized
-HPC Optimized
Which EC2 pricing plan is appropriate for committing to consistent usage
over a one or three year period? ANS✔✔ Reserved Instances
Difference between Standard and Convertible EC2 reserved instances?
ANS✔✔ Standard: Commit to instance type, OS, and tenancy options.
Availability Zone commitance is optional
Convertible: Availability Zone or Instance Type may be switched. Less of a
discount than standard
, Which EC2 pricing plan is appropriate for pay-as-you-use irregular usage and
offers no long-term commitments or up-front payments? ANS✔✔ On-Demand
Pricing
Which EC2 pricing plan is good for consistent hourly usage over a one or
three-year period? ANS✔✔ Savings Plan
Which EC2 pricing plan is the cheapest, allowing you to use idle EC2 hosts for
your instances until another AWS Client requires it ANS✔✔ Spot Instances
Which EC2 pricing plan will fully occupy hosts for your own instances with no
multitenancy ANS✔✔ Dedicated Hosts
AWS Service for easy application/webapp deployment. All you provide is your
code ANS✔✔ AWS Elastic Beanstalk
AWS service for more hands-on infrastructure (IaC) deployment with
YAML/JSON scripts ANS✔✔ AWS CloudFormation
Which EC2 feature allows you to allocate more or less virtual resources to
your instances? ANS✔✔ Vertical Scaling
Which EC2 feature allows you to start up or terminate instances based on
current demand? ANS✔✔ Horizontal scaling/Auto scaling
What are the differences between the Dynamic and Predictive scaling
options that can be used by Horizontal Scaling? ANS✔✔ Dynamic - Responds
to current demand
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Schoolflix. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.99. You're not tied to anything after your purchase.