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Cloud Concepts Flashcards

1
Q

Instance

A

Virtual Machine

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2
Q

Compute

A

Objects that process workload.
Physical servers in datacenters replace CPU and RAM of on-premise tools

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3
Q

Storage

A

Save / Store data, equivalent of a memory disk, NAS, or SAN

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4
Q

Database

A

Store structured data sets, equivalent of Oracle or MySQL

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5
Q

Network

A

Provide connectivity, equivalent of a router or firewall

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6
Q

3 Cloud Deployment Models

A

Public, Private, Hybrid

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7
Q

Public Deployment Model

A

Share public infrastructure for resources, requires internet.
Consumers won’t see hardware or know location of data, but can specify geographic region based on end user latency.
Cloud vendor provides physical hardware

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8
Q

Private Deployment Model

A

Company owns infrastructure, not a third party vendor.
Provides more control of data and security at the cost of capital expenditure and daily operational costs.
Still uses virtualization and cloud storage, but hardware is usually on premise

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9
Q

Hybrid Deployment Model

A

A mixture of on-premise and vendor technology.
Good for seasonal bursts of traffic or disaster recovery.
Requires a network link between private / public cloud.
Normally short term for testing and development or a transitional period from public to private

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10
Q

On-demand Resources

A

Resources are immediately available for allocation by making new instances

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11
Q

Up and Down Scalability

A

Rapidly adjust the power and performance of an instance as needed

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12
Q

In and Out Scalability

A

Rapidly adjust the number of instances supplying resources

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13
Q

Economy of Scale

A

Huge scale of resources allow cloud vendors to maintain lower resource costs for consumers

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14
Q

Flexibility and Elasticity

A

Consumer can choose the resource amount, how long they need it, and the scale

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15
Q

Growth

A

Easier to reach global customers with less economic and technological restraints

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16
Q

Utility Based Metering

A

Pay for what you need

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17
Q

Shared Infrastructure

A

Virtual hosts allow multiple tenants to run instances on the same hardware

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18
Q

Highly Available

A

Ensures durability and availability of data

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19
Q

Why is cloud computing more secure than private datacenters?

A

Cloud vendors must adhere to global compliance

20
Q

Shared Responsibility

A

Vendor provides high security standard for underlying infrastructure, and the network architect maintains security within the cloud

21
Q

Software as a Service (SaaS)

A

No software requirements to install, easy to use, and managed over the internet but with less control.
Delivering the application is widely accessible and distributable (Gmail)

22
Q

Platform as a Service (PaaS)

A

Access framework from the OS and above, better management and control than SaaS. Underlying architecture, host hardware, network components, and OS are managed by the vendor, great deployment option for developers

23
Q

Infrastructure as a Service (IaaS)

A

High customization, architect your own portion of the cloud.
Segmented from other networks, deploy resources as needed.
Allows for configuring of instances and even OS types

24
Q

Common Use Cases of Cloud Computing

A

1) Migration of production services from on-premise to cloud
2) Seasonal increase of traffic (traffic bursting)
3) Backup / disaster recovery
4) Web Hosting
5) Test / Dev Environments
6) Proof of Concept
7) Big Data Management and Manipulation

25
What components of cloud computing are the cloud vendor's responsibility?
Correct certification and governance of security Ensuring datacenter improvements Mechanical and electrical infrastructure Network infrastructure VPC backend
26
Virtual Private Cloud (VPC)
AWS's VN, which can create different segments and dynamically configure routing and access control lists.
27
Storage Area Network (SAN)
Dedicated, high-speed network that provides access to consolidated, block-level data storage
28
Elastic Block Store (EBS)
Offers persistent block storage, can be added or removed from instances as needed
29
What are reasons cloud computing is good for businesses that have reasonable data management already?
Innovation potential Swift go-to market pushed products with instant development Carbon footprint reduction Remote access for outsourced architects, working globally, and reduced salary expenses Minimize loss and corruption of data, minimizing risk Collaboration and business agility means less time on infrastructure, more on services
30
Availability Zones (AZ)
Multiple datacenters close together form an AZ, at least 2 to maintain high availability
31
AWS Region
3-5 AZs linked together via low latency connection Global regions allow compliance with data storage laws, but not all AWS services are available at every region Even distribution of resources in a region means all data from a consumer may not be in the same AZ
32
Edge Locations
Deployed in major cities, more edges than AZs Don't deploy infrastructure but cache data and reduce latency
33
Regional Edge Cache
Larger cache-width then individual edge locations, when data expires at the edge it's moved to regional edges for future access at higher latency
34
Migration Evaluator / TSO
A tool for developing business cases and planning migration to the cloud
35
AWS Pricing Calculator
Creates a cost estimate for AWS services based on your uses cases Models your solutions before building them, explores the price points and calculations behind your estimate, and finds the available instance types and contract terms that meet your needs
36
Upgrading SAS Software Policy
SAS allows all customers who are upgrading to a new production release to run two parallel copies of the licensed software (the old release and the new release) for 180 days (6 months) at no additional charge
37
Testing New Hardware Policy
SAS allows 30 days of free testing of new hardware or operating systems before upgrading
38
Operational Expenses (OpEx)
Costs incurred by a business to perform its operational activities They include rent and utilities, marketing, sales and accounting, and salaries
39
Capiture Expenses (CapEx)
Money an organization or corporate entity spends to buy, maintain, or improve its fixed assets, such as buildings, vehicles, equipment, or land
40
Right-Sizing
The process of matching instance types and sizes to your workload performance and capacity requirements at the lowest possible cost
41
Benefits of Automation
1) Rapid changes 2) Improved productivity 3) Repeatable configurations 4) Reproducible environments 5) Elasticity 6) Automatic scaling 7) Automated testing
42
Cloud Architecture Design Principles
1) Design for failure 2) Decouple components versus monolithic architecture 3) Implement elasticity in the cloud versus on-premises 4) Think parallel
43
Design for Failure
Having automated processes in place for when a system fails, as well as having as much control as possible over how this failure occurs
44
Decoupled Components
A decoupled system allows changes to be made to any one system without having an effect on any other system
45
Implement Elasticity in the Cloud vs. On-Premises
This saves you costs on physical hardware and doesn't give you set max and minimum processing power
46
Think Parallel
Rather than debating topics, think in the same direction at the same time and allot time to discuss each category fully
47
AWS Managed Services (AMS)
Leverages standard AWS services and offer guidance and execution of operational best practices with specialized automations, skills, and experience that are contextual to your environment and applications

Cloud Practitioner (4 decks)

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