Introduction to Cloud Cognitive Class Exam Quiz Answers

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Introduction to Cloud Cognitive Class Certification Answers

Introduction to Cloud - Cognitive Class Answers

Module 1 – Overview of Cloud Computing

Question 1) In the US National Institute of Standards and Technology, NIST, definition of “cloud computing”, what does the statement “shared pool of configurable computing resources” include?

Leverage cloud services over the open internet on hardware owned by the cloud provider
Data security, associated with loss or unavailability of data causing business disruption
Networks, servers, storage, applications, and services
Five essential characteristics, three deployment models, three service models

Question 2) What tasks do hypervisors accomplish? Select two.

Note: Make sure you select all of the correct options!

Enable multiple operating systems to run alongside each other, sharing the same physical computing resources.
Facilitate access to mainframes for multiple users to access the same data storage layer.
Scale on demand to support fluctuating workloads.
Separates VMs logically and assigns each a share of the underlying computing power, memory, and storage.

Question 3) What are some of the cloud benefits that make it lower risk for enterprises to adopt cloud? Select two.

Note: Make sure you select all of the correct options!

Data security associated with loss or unavailability of data causing business disruption
The pay-as-you-go model allows enterprises to experiment with technologies as opposed to making long-term decisions based on little or no trial.
Diversity of standardization in how the constantly evolving technologies integrate and interoperate.
The speed with which applications can be up and running on the cloud versus months on traditional platforms, means enterprises can experiment, fail fast, learn, and course correct without setting them back significantly.

Module 2 – Cloud Adoption and Emerging Technologies

Question 1) An IBM Institute for Business Value study says that more than three-quarters of enterprises today are using cloud computing to expand into new industries. What additional benefits do organizations find when adopting the cloud:

Avoid having to fail at all
Improve customer experience and create enhanced products and services
Lengthen product lifecycles to ensure higher quality offerings
Continue making expensive decisions because it often worked in the past

Question 2) What is the three-way symbiotic relationship between IoT, AI, and Cloud?

Power, scale, dynamic nature, and economics of the cloud resources
Making sense of the endless streams of data from IoT devices
IoT delivers the data, AI powers the insights, and both emerging technologies leverage cloud’s scalability and processing power
AI consumes the data produced by IoT devices

Question 3) What is the three-way relationship between blockchain, AI, and the Cloud?

An immutable network allowing members to view only those transactions that are relevant to them.
Lends trust and transparency to AI by recording the data and variables that go into a decision made in an AI algorithm.
Blockchain provides the trusted, decentralized source of truth, AI powers the analytics and decisions made from the collected data, and cloud provides the globally distributed, scalable, and cost-efficient computing resources to support both technologies.
Globally distributed, scalable, and cost-efficient computing resources.

Module 3 – Cloud Computing Service and Deployment Models

Question 1) Which are some of the key components of cloud infrastructure? Select two.

Note: Make sure you select all of the correct options.

IaaS providers manage the hypervisors and provision virtual instances
IaaS providers deploy the middleware and install required applications on the virtual machines
IaaS providers manage large data centers that contain the physical machines required to power the various layers of abstraction on top of them
IaaS providers manage the hypervisors and end-users provision the virtual instances

Question 2) According to the video, which of these statements are true of Virtual Private Clouds (VPCs)? Select two.

Note: Make sure you select all of the correct options.

VPCs are provisioned in a logically isolated part of a shared public cloud
The VPC infrastructure is owned, managed, and operated by the public cloud service provider
VPCs may be provisioned over a cloud service provider’s infrastructure, but the infrastructure is owned, managed, and operated by the enterprise
VPC allows all users of the shared public cloud to access resources in the VPC on need basis; it also allows users of the VPC to access resources of the public cloud

Question 3) If an organization needs to run a highly sensitive and mission critical application with unpredictable performance and capacity requirements, which of the following models would best meet its requirements?

Hybrid Cloud
Public Cloud
Private Cloud
On-premise Data Centers

Module 4 – Components of Cloud Computing

Question 1) Is it possible to run completely different operating systems on Virtual Machines (VMs) that are on a single host? If yes, what makes this possible?

No, it is not possible—A single host can only work as one single virtual environment, and can, therefore, have only one environment.
Yes, Virtualization makes it possible— to have VMs, running different operating systems, on a single host.
Yes, Containerization makes it possible—to have VMs that are unique physical entities, so you can have completely different Operating Systems on them.
No, it is not possible—VMs are software-based versions of a single host. They cannot have different environments from one another.

Question 2) Which of these scenarios is ideal for the use of bare metal servers, as opposed to virtual servers? Select two.

Note: Make sure you select all of the correct options!

CPU and I/O intensive workloads
Low cost to use
Huge performance and strict security and compliance requirements
Workloads that require limited throughput and performance

Question 3) Subnets are the main area where security is implemented in the cloud. What is used to provide security at the virtual instance level in subnets?

Security Groups or SGs
Virtual Private Cloud or VPC
Load Balancers
Access Control Lists or ACLs

Module 5 – Cloud Computing Storage and Content Delivery Networks

Question 1) Which of these are features of Object Storage? Select two.

Note: Make sure you select all of the correct options!

Storage is attached to compute nodes using a fibre network
You can directly use Object Storage without attaching it to a compute node
Object Storage can be mounted on multiple compute nodes via an ethernet network
Object storage is effectively infinite

Question 2) There are four types of cloud storage available. Which storage type is ephemeral or non-persistent?

File storage
Direct Attached storage
Block storage
Object storage

Question 3) What is the main benefit of a Content Delivery Network (CDN)?

Network topology
Distribute tasks, workloads, and network traffic
Enhanced control over network traffic by routing traffic to specified resources
Speed, it makes your website faster by serving files from a location closer to the user.

Module 6 – Emergent Trends, Cloud Native, DevOps and Application Modernization

Question 1) What are the key elements of a hybrid Multicloud strategy?

For seamless working, it is recommended that if you’re subscribed to the infrastructure services of a cloud provider, you should subscribe to the application services provided by the same vendor.
Embraces a mix of cloud models and services as long as they are from the same cloud service provider
Embraces a mix of cloud models while creating a vendor lock-in with the cloud provider
Connects an organization’s on-premise private cloud and third-party public cloud into a single infrastructure

Question 2) What is an attribute that distinguishes serverless computing from other compute models?

In the serverless computing environment, compute resources cannot be scaled up or down
Serverless computing does not require any underlying servers for executing workloads
The serverless model requires NO provisioning of servers, installation of application stacks, or operation of the infrastructure BY the users/developers
End users pay for resources as long as they are running, even if idle

Question 3) Cloud adoption is an integral part of application modernization. What are the other two important components of modernization?

Service Oriented Architecture and Waterfall Methodology
VMs and Agile Methodology
Microservices and DevOps
Serverless and Virtual Machines

Introduction to Cloud Final Exam Answers – Cognitive Class

Question 1) Which cloud deployment model lets users use multiple cloud models working together seamlessly?

Private
Hybrid
Broad Network Access
Public

Question 2) Which of these are essential characteristics of the Cloud? Select two.

Note: Make sure you select all of the correct options!

Single-tenant
On-demand self-service
Resource pooling
Fixed fee

Question 3) What are some cloud computing benefits? Select two.

Note: Make sure you select all of the correct options!

Purchasing off-the-shelf software and upgrades
Diversity of standardization in how the constantly evolving technologies integrate and interoperate.
Competitive advantage
Flexibility and efficiency

Question 4) According to the International Data Corporation (IDC), what is that crucial ability that will make cloud computing essential for businesses to succeed, sustain, and compete in today’s markets?

Multi-cloud infrastructures
Applied exponential technologies such as AI, Automation, IoT, and Blockchain
Cognitively-enabled workflows
Data-driven decisions

Question 5) IoT, AI, Blockchain, and Analytics are emerging technologies enabled by the cloud. What are some of the attributes of cloud computing that enable these technologies? Select two.

Note: Make sure you select all of the correct options!

Cloud resources are offered in a single-tenant model
The power and scale of cloud resources
Computing resources can be accessed via internet connection
Cloud offers on-demand computing

Question 6) In the car analogy used to explain the differences between the three cloud service models, which of the provided options is an analogy for PaaS?

Hiring a taxi
Buying a car
Leasing a car
Renting a car

Question 7) Which of these scenarios are good use cases for Public Cloud? Select two.

Note: Make sure you select all of the correct options!

Reducing time-to-market for products and services
Managing business critical platforms and applications
Disaster recovery, data protection, and business continuity
Applications with stable capacity and resourcing needs

Question 8) Private cloud platforms can be implemented internally or externally. What is an example of external private cloud platform?

Virtual Private Cloud or VPC
Cloud platform that runs on-premises
Platform that is owned, managed, and operated by the organization
Controlled access and customized security measures

Question 9) The infrastructure layer is the foundation of the cloud and consists of physical resources. Where do these physical resources reside?

Regions, Zones, and Data Centers
Compute, Storage, and Networking Resources
Virtual Servers, Bare Metal Servers, and Serverless computing resources
In a warehouse that houses a centralized mainframe server

Question 10) Why do bare metal servers take longer to provision than virtual servers?

They’re multi-tenant servers, and all tenants must help configure them
They are physical servers that can be customized to specified capacity
GPUs for data analytics are hard to configure and provision
Customer configures the physical servers

Question 11) Containers provide isolation of applications. What is one of the benefits this provides?

Help keep malicious code in one container from impacting other containers
Abstraction from the host operating system
Repackaged into containers or containerized microservices
Open sourced runtime engine

Question 12) What makes File storage an ideal solution for scenarios where common storage (a landing zone for incoming files) is needed?

Mounted from remote storage appliances
File storage can be mounted to multiple compute nodes at a time
Its consistently high speed
File Storage is mounted to compute nodes via an ethernet network

Question 13) Which of these scenarios are best suited for Block Storage? Select two.

Note: Make sure you select all of the correct options!

Workloads that need low-latency storage
Workloads that need disk sharing between compute nodes
Low cost is a consideration
Applications that need consistent fast access to disk, such as databases

Question 14) Which of the following is NOT a good fit for Object Storage?

Data that does not require fast read and write speeds
Operating systems or applications like databases
Storage needs are finite and can be pre-defined
Files or objects that are static

Question 15) What is a Content Delivery Network (CDN)?

Network topology
A network node
A distributed server network
A network link

Question 16) What are some of the benefits of using microservices architecture? Select two.

Note: Make sure you select all of the correct options!

Application components can be developed and updated independently of each other
Each microservice of an application needs to use the same stack and runtime environment
Components facing varied amounts of load can be scaled independently
Each line of code for a microservice needs to be written from scratch

Question 17) What are the characteristics of a cloud native application?

Collection of microservices that need to be scaled and updated in relation to each other
Collection of microservices working together as a whole to comprise an application
Collection of microservices that are built as one huge piece of software
Collection of microservices with tightly coupled UI, business logic layer, and data layer

Question 18) DevOps’ tools, practices, and processes are helping tackle some of the complexities and challenges posed by the cloud. Identify two ways in which DevOps is mitigating these challenges. Select two.

Note: Make sure you select all of the correct options!

DevOps processes outline the development principles that need to be followed to modernize monolithic applications to cloud native applications
By creating an automated deployment pipeline
By fully automating the infrastructure installation process in a way that is documented, repeatable, verifiable, and traceable
DevOps best practices eliminate the need to provision servers, build middleware, and install application code