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CompTIA Network+ N10-008 > CH15 Course Quiz > Flashcards

CH15 Course Quiz Flashcards

1
Q

Which cloud service model is provided by Amazon Web Services (AWS)?

Infrastructure as a Service (IaaS)
Software as a Service (SaaS)
Platform as a Service (PaaS)
Software-defined Networking (SDN)

A

Infrastructure as a Service (IaaS)

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2
Q

With containerization, an operating system creates a self-contained environment for an application?

True
False

A

True

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3
Q

Which term refers to a software connection that passes traffic from the real NIC to a Virtual one?

NAT
bridge
Switch
route

A

bridge

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4
Q

Virtualization enables one machine to run multiple operating systems simultaneously?

True
False

A

True

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5
Q

Community clouds are run by a city or state for citizens’ use?

True
False

A

False

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6
Q

If you’re running a data center that hosts 100,000 physical servers, every server will have more or less fixed needs?

True
False

A

True

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7
Q

With Software as a Service (SaaS) - What/How do you typically pay for?

Security
Time
What You Use
Subscription

A

Subscription

Explanation:
Again, very subjective question - but the best answer here is Subscription.
Most SaaS Cloud providers charge a Subscription and it is Subscription based.
Some do have you pick and choose what you need to use, Features in the Software or additional/enhanced Features.
You can also pick Security, most SaaS do provide base levels of Security.
But again, the best answer is Subscription.

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8
Q

Which vendor was one of the earliest PaaS providers?

Heroku
Amazon
VMware
Microsoft

A

Heroku

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9
Q

The program used to create, run, and maintain the VMs is called a Host?

True
False

A

False

Explanation:
Hypervisor

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10
Q

Which hypervisors are popular for learning about Virtualization, don’t require a dedicated system, and are installed on top of the operating system?

Type 2
Type 1
Type 4
Type 3

A

Type 2

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11
Q

The term Public Cloud, refers to the services and applications that are owned by the public?

True
False

A

False

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12
Q

With Infrastructure as a Service (IaaS) - What/How do you typically pay for?

Time
What You Use
Security
Subscription

A

What You Use

Explanation:
You’re purchasing the Cloud Infrastructure, it can be seen as a alacart type of setup. You pick and choose what you want, need to use, and pay for it. It may be a Subscription still too, but the best answer here for IaaS is “What you use…”

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13
Q

Hardware utilization means that a Server (or a Desktop PC) isn’t being used anywhere near its capability?

True
False

A

False

Explanation:
The word is - Underutilization.

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14
Q

Virtualization usually refers to running software on a computer to create a _____________, an environment that imitates a Physical Machine?

Virtual Machine
hard disk
host server
terminal emulator

A

Virtual Machine

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15
Q

No matter what a Server is serving, traditionally we have a substantial amount of hardware underutilization?

True
False

A

True

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16
Q

One of the great benefits of Cloud Computing is that if you need a teeny-tiny server that does almost no work, you can pay for a likewise teeny-tiny fraction of the resources of a huge server for a few ________________ per day?

seconds
cycles
dollars
pennies

A

pennies

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17
Q

Virtualization enables one machine called the ______________ to run multiple operating systems simultaneously?

hypervisor
workstation
server
host

A

host

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18
Q

Which tool is installed on the system in lieu of an Operating System?

Infrastructure as a Service (IaaS)
Type 1 Hypervisor
Infrastructure as Code (IaC)
Type 2 Hypervisor

A

Type 1 Hypervisor

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19
Q

Similar to how Virtual Machines enable us to easily reallocate computing resources when demand changes, ________________ let us dynamically reconfigure Networks?

workstations
cloud servers
community switches
virtual routers

A

virtual routers

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20
Q

Which service is considered to be the “Bottom of the Service-Layer Cake”?

Platform as a Service (PaaS)
Software as a Service (SaaS)
Desktop as a Service (DaaS)
Infrastructure as a Service (IaaS)

A

Infrastructure as a Service (IaaS)

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21
Q

Software-Defined Networking (SDN) cuts the control plan of individual devices out of the picture and lets an all-knowing program called a _________________ controller dictate how both Physical and Virtual Network components move traffic through the Network?

primary
network
secondary
slave

A

network

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22
Q

Community clouds are paid for and run by _________________?

the military for citizens use
a city or state for citizens use
a group of organizations with similar goals or needs
Internet Service Providers (ISPs) for military use

A

a group of organizations with similar goals or needs.

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23
Q

Which term is used for the ability to support multiple customers on the same infrastructure at the same time?

intrusion
logging
overutilization
multitenancy

A

multitenancy

24
Q

Which term is used to describe a Server (Or a desktop PC, for that matter) that isn’t being used anywhere near its capability?

automation
divergent connection
hardware underutilization
orchestration

A

hardware underutilization

25
Q

Which type of hypervisor is installed on top of the operating system?

Type 4
Type 2
Type 3
Type 1

A

Type 2

26
Q

Which technology combines automated processes into bigger, multifaceted processes called pipelines or workflows?

orchestration
virtualizations
parsing
kerning

A

orchestration

27
Q

Which service is considered to be the Top of the Service-Layer Cake?

desktop as a service (DaaS)
software as a service (SaaS)
infrastructure as a service (IaaS)
platform as a service (PaaS)

A

Software as a Service (SaaS)

28
Q

Which service is considered to be the “Middle of the Service Layer cake”?

Platform as a Service (PaaS)
Desktop as a Service (DaaS)
Infrastructure as a Service (IaaS)
Software as a Service (SaaS)

A

Platform as a Service (PaaS)

29
Q

Using code to set up (provision) and maintain systems (installing software updates, for example) in a consistent manner, with no mistyped commands, is known as ___________?

coercion
diversion
automation
parsing

A

automation

30
Q

You can install and run an operating system in the virtual environment as if it were its own physical computer?

True
False

A

True

31
Q

To Abstract - means to add or combine?

True
False

A

False

Explanation:
Abstract = Remove or Separate

32
Q

The centralized installation, configuration, and handling of every Switch in a Network is known as ________________ switching?

A

distributed

33
Q

Virtual _______________ can protect Servers where inserting a physical one would be hard, costly, or impossible?

A

Firewalls

34
Q

We can build a _______________ by combining public, private, and community Clouds?

A

Hybrid Cloud

35
Q

A ________________ is software that does the same Layer 2 Switching a hardware Switch does, including features like VLANs?

A

virtual Switch

36
Q

In the purest form a _________________ subscription application runs on the Server; users don’t install it - they just access it with a Client (Often a Web Browser)?

A

Software as a Service (SaaS)

37
Q

A VM running a desktop OS used as a replacement for a desktop environment on a physical workstation is known as a _______________?

A

Virtual Desktop

38
Q

Containers use fewer resources than VMs, but they’re stuck with the same ___________ as their host and are less isolated from each other?

A

OS (Operating System)

39
Q

In the purest form, a ________________________ subscription application runs on the Server; users don’t install it - they just access it with a client (Often a Web Browser)?

A

Software as a Service (SaaS)

40
Q

A _________________ is a special program, running in protected space (just like programs run in a protected space), that enables all the features of the Server (RAM, CPU, Drive Space, Peripherals) to run as though they are each separate computers?

A

Virtual Machine

41
Q

Virtualization describes a specific kind of _____________________: a pattern that involves creating a virtual (software) version of something?

A

abstraction

42
Q

A hypervisor can use a ______________, in the form of a Virtual Switch to enable multiple VMs it hosts to communicate without the frames ever leaving the host machine?

A

Virtual Network

43
Q

Virtual _______________ let an administrator dynamically reconfigure Networks?

A

Routers

44
Q

__________________ cuts the Control plane/layer of individual devices out of the picture and lets an all-knowing program called a Network Controller dictate how both physical and virtual network components move traffic through the network?

A

Software-Defined Networking (SDN)

45
Q

A ____________________ provider replaces applications once distributed and licensed via physical media (Such as CDROM in retail boxes) with subscriptions to equivalent applications from online servers?

A

Software as a Service (SaaS)

46
Q

Using a hyubrid cloud model can mean not having to maintain a private cloud powerful enough to meet peak demand, an application can grow into a public cloud instead of grind to a halt, a technique called __________________?

A

Cloud Bursting

47
Q

List Three Categories of Cloud Service Models?

A

Infrastructure as a Service (IaaS)
Platform as a Service (PaaS)
Software as a Service (SaaS)

48
Q

Define Private Direct Connection?

A

They are private direct links between a Network and a Cloud Provider.
There are 2 Forms - Physical Port on the Cloud Provider’s Switch, or a Leased Line that you contract through a Third Party.
The Traffic for a Private Direct Connection never goes over the Public Internet.

49
Q

Discuss how Classic Networking relates to Classic Computing?

A

The follow the same paradigm where a dedicated computing device with a dedicated Operating System performs each Netowrk function.
Switches do switching, Routers do routing, etc. etc…

50
Q

Explain Desktop Virtualization and Virtual Desktop Infrastructure?

A

Desktop Virtualization requires Direct Access to a systems local desktop environment with a client that can access an OS running in a VM.
Virtual Desktop Infrastructure (VDI) is basically DaaS (Desktop as a Service), it’s Desktop Cloud based Virtualization and is accessed through a Service Provider.

51
Q

What is the role of a Hypervisor?

A

The program used to create, run, and maintain the Virtual Machines.

52
Q

Describe Platform as a Service (PaaS)?

A

Gives some form of Infrastructure, but gets specific by building a Platform - a complete deployment and management system to handle every aspect of meeting some goal.

53
Q

Compare a Virtual NIC to a Physical NIC?

A

There’s no difference once they are properly configured - They both have MAC Addresses, and you setup a vNIC as you would a pNIC. One is just Virtual and the other is a Hardware Card.

54
Q

Explain how Virtualization gives individual VMs valid IP Addresses by bridging the NIC?

A

Each bridge is a software connection that passes traffic from the real NIC to a vNIC. The bridge works at Layer 2 of the OSI Model, so each vNIC gets a legitimate unique MAC Address just as a pNIC would.

55
Q

Define Hybrid Cloud, and describe how it can be used?

A

Hybrid Cloud deployment describes a combination of Public, Private, and Community Cloud Resources.
This means not having to maintain a Private Cloud powerful enough to meet peak demand, an application can grow into a Public Cloud instead of grind to a halt.

56
Q

Briefly describe why Service is the key to understanding the cloud?

A

We use the Servers and Networks of the Cloud through Layers of software that add great value (A Service) to the underlying hardware by making it simple to perform complex tasks or manage powerful hardware - without End Users needing to be responsible for maintaining it.

57
Q

Explain some scaling problems that occur as networked applications and services grow and mature?

A

As Services grow, you need more Programmers, and having tons of Programmers means they step on each others toes by making incompatible changes.

The applications grow so complex that no one person knows how to set up the components needed to test them.

The databases grow too big to fit on the beefiest servers money can buy.

CompTIA Network+ N10-008 (32 decks)

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