Essentials Flashcards
What is this deployment model?
Run all parts of the application in the cloud.
Migrate existing applications to the cloud.
Design and build new applications in the cloud.
cloud-based deployment model
What is this deployment model?
Deploy resources by using virtualization and resource management tools.
Increase resource utilization by using application management and virtualization technologies.
On-premises deployment
aka Private cloud deployment
Though this model is much like legacy IT infrastructure, its incorporation of application management and virtualization technologies helps to increase resource utilization.
What is this deployment model?
Connect cloud-based resources to on-premises infrastructure.
Integrate cloud-based resources with legacy IT applications.
hybrid deployment
With a hybrid deployment, the company would be able to keep the legacy applications on premises while benefiting from the data and analytics services that run in the cloud.
Which 3 are benefits of cloud computing?
A. Trade upfront expense for variable expense
B. Needs fewer people to maintain a database or application
C. Stop spending money to run and maintain data centers
D. Stop guessing capacity
A, C, D
Which 3 are benefits of cloud computing?
A. More secure than on-premise
B. Benefit from massive economies of scale
C. Increase speed and agility
D. Go global in minutes
B, C, D
What is cloud computing?
On-demand delivery of IT resources and applications through the internet with pay-as-you-go pricing
How does the scale of cloud computing help you to save costs?
A. You do not have to invest in technology resources before using them.
B. The aggregated cloud usage from a large number of customers results in lower pay-as-you-go prices.
C. Accessing services on-demand helps to prevent excess or limited capacity.
D. You can quickly deploy applications to customers and provide them with low latency
B. The aggregated cloud usage from a large number of customers results in lower pay-as-you-go prices.
Which EC2 Instance Type is described?
Provides a balance of compute, memory, and networking resources. You can use them for a variety of workloads. The the application does not require optimization in any single resource area.
A. General Purpose Instance
B. Memory Optimized Instance
C. Storage Optimized Instance
A. General Purpose Instance
Which EC2 Instance Type is described?
Ideal for high-performance web servers, compute-intensive applications servers, and dedicated gaming servers. You can also use it for batch processing workloads that require processing many transactions in a single group. Offers high-performance processors
A. Storage Optimized Instance
B. Memory Optimized Instance
C. Compute Optimized Instance
C. Compute Optimized Instance
Which EC2 Instance Type is described?
Designed to deliver fast performance for workloads that process large datasets in memory.
Ideal for a high-performance database or a workload that involves performing real-time processing of a large amount of unstructured data.
A. Memory Optimized Instance
B. Accelerated Computing Instance
C. Storage Optimized Instance
A. Memory Optimized Instance
Which EC2 Instance Type is described?
Ideal for workloads such as graphics applications, game streaming, and application streaming. Uses hardware accelerators, or coprocessors, to perform some functions more efficiently than is possible in software running on CPUs. Can expedite data processing.
A. Compute Optimized Instance
B. Accelerated Computing Instance
C. Storage Optimized Instance
B. Accelerated Computing Instance
Which EC2 Instance Type is described?
Designed for workloads that require high, sequential read and write access to large datasets on local storage, and to deliver tens of thousands of low-latency, random IOPS to applications. Ideal for distributed file systems, data warehousing applications, and high-frequency online transaction processing (OLTP) systems. Suitable for data warehousing applications
A. Storage Optimized Instance
B. Memory Optimized Instance
C. Compute Optimized Instance
A. Storage Optimized Instance
Which EC2 pricing option is described?
Ideal for short-term, irregular workloads that cannot be interrupted (like developing and testing applications). No upfront costs or minimum contracts apply. The instances run continuously until you stop them, and you pay for only the compute time you use.
A. Amazon EC2 Savings Plan
B. Spot Instances
C. On-demand Instances
C. On-demand Instances
Which EC2 pricing option is described?
Enables you to reduce your compute costs by committing to a consistent amount of compute usage for a 1-year or 3-year term. This term commitment results in savings of up to 72% over On-Demand costs.
A. Amazon EC2 Savings Plan
B. Spot Instances
C. On-demand Instances
A. Amazon EC2 Savings Plan
do not require contracts or a commitment to a consistent amount of compute usage.
Which EC2 pricing option is described?
Ideal for workloads with flexible start and end times, or that can withstand interruptions. Uses unused Amazon EC2 computing capacity and offer you cost savings at up to 90% off of On-Demand prices.
A. Spot Instances
B. Amazon EC2 Savings Plan
C. Dedicated Host
A. Spot Instances
do not require contracts or a commitment to a consistent amount of compute usage.
Which EC2 pricing option is described?
Physical servers with Amazon EC2 instance capacity that is fully dedicated to your use. You can use your existing per-socket, per-core, or per-VM software licenses to help maintain license compliance. The most expensive.
A. Reserved Instances
B. Dedicated Hosts
C. On-demand
B. Dedicated Hosts
Which EC2 pricing option is described?
A billing discount applied to the use of On-Demand Instances in your account. You can purchase Standard Reserved and Convertible Reserved Instances for a 1-year or 3-year term, and Scheduled Reserved Instances for a 1-year term. You realize greater cost savings with the 3-year option.
A. Amazon EC2 Savings Plan
B. Spot Instances
C. Reserved Instances
C. Reserved Instances
At the end of a Reserved Instance term, you can continue using the Amazon EC2 instance without interruption. However, you are charged On-Demand rates until you do one of the following:
Terminate the instance.
Purchase a new Reserved Instance that matches the instance attributes (instance type, Region, tenancy, and platform).
Pick the 2 true statements about Amazon EC2 Auto Scaling:
A. Enables you to automatically add or remove Amazon EC2 instances in response to changing application demand.
B. Can add new instances to the application when necessary and terminate them when no longer needed.
C. Cannot predict demand, just responds to demand
A. Enables you to automatically add or remove Amazon EC2 instances in response to changing application demand.
B. Can add new instances to the application when necessary and terminate them when no longer needed.
Can respond to changing demand and automatically schedules the right number of Amazon EC2 instances based on predicted demand.
What is Dynamic scaling?
responds to changing demand.
What is Predictive scaling?
automatically schedules the right number of Amazon EC2 instances based on predicted demand.
Pick 3 true statements about Elastic Load Balancing:
A. Acts as multiple points of contact for all incoming web traffic to your Auto Scaling group
B. Elastic Load Balancing and Amazon EC2 Auto Scaling work together
C. Requests route to the load balancer first
D. The requests spread across multiple resources that will handle them.
B. Elastic Load Balancing and Amazon EC2 Auto Scaling work together
C. Requests route to the load balancer first
D. The requests spread across multiple resources that will handle them.
Acts as a single point of contact for all incoming web traffic to your Auto Scaling group
True or False:
In a monolithic application architecture, if a single component fails, other components fail, and possibly the entire application fails.
True
True or False:
Loose coupling makes applications more vulnerable to failure.
False
In a microservices approach, application components are loosely coupled. In this case, if a single component fails, the other components continue to work because they are communicating with each other. The loose coupling prevents the entire application from failing.
Pick the 2 true statements about Amazon SNS:
A. It a publish/subscribe service.
B. Subscribers publish messages
C. Subscribers can be web servers, email addresses, AWS Lambda functions, or several other options.
A. It a publish/subscribe service.
C. Subscribers can be web servers, email addresses, AWS Lambda functions, or several other options.
Using Amazon SNS topics, a publisher publishes messages to subscribers.
