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Block 4 > Unit 2 > Flashcards

Unit 2 Flashcards

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1
Q

What is a combination of software applications and an operating system tricked into thinking it has dedicated hardware?

A

Virtual Machine (VM)

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2
Q

(True/False) Do VMs have a BIOS, hard disk, memory, CPU, and Operating System?

A

True

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3
Q

________ is the physical computer hardware on which the virtualized environment resides.

A

Host Server

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4
Q

The __________ or __________ is the link managing communications between the host
server and virtualized environment.

A

Hypervisor
or
Virtual Machine monitor (VMM)

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5
Q

(True/False) A single virtual environment consists of only one guest OS.

A

False

(A single virtual environment can have more than one guest OS, as long as the physical machine has enough hardware capacity and memory to host the multiple VMs)

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6
Q

______ virtualization is a method of simulating a user workstation so it can be accessed from
a remotely connected device.

A

Desktop virtualization

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7
Q

Name the three types of desktop virtualization architectures.

A

Presentation virtualization

Virtual desktop infrastructure (VDI)

User profile virtualization

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8
Q

What is the most common type of virtualization, partitioning the physical server into smaller virtual servers?

A

Server Virtualization

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9
Q

Name the three commercial pieces of software that enable server utilization.

A

VMware (the current industry leader)

Citrix XenServer

Microsoft Hyper-V

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10
Q

What are the three main types of server virtualization?

A

Operating-system-level Virtualization

Hardware Emulation

Para-virtualization

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11
Q

_____ virtualization allows multiple users to simultaneously access the same application installed on a central server.

A

Application Virtualization

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12
Q

What type of virtualization is used to pool physical storage from multiple, often separate,
network storage devices into one logical storage device that is centrally controlled?

A

Storage Virtualization

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13
Q

What are the common applications of virtualization technologies? (6)

A
  1. Development and Testing
  2. Training
  3. Server Consolidation
  4. Load Balancing
  5. Server Pooling
  6. Disaster Recovery
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14
Q

What type of hypervisor has the virtualization software installed directly on the machine
hardware?

A

Type 1 Hypervisor
(Bare-metal)

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15
Q

What type of hypervisor is installed onto an operating system?

A

Type 2 Hypervisor
(Hosted)

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16
Q

What is a disadvantage of a Bare-Metal hypervisor?

A

limited hardware support

(because the hypervisor usually has limited built-in device drivers)

17
Q

What are advantages of a Type 2 hypervisor?

A

Better hardware compatibility

(OS is responsible for the hardware drivers instead of the hypervisor.)

18
Q

What are the four main benefits of virtualization?

A

1.Infrastructure simplification

  1. Reduction in Total Cost of Ownership (TCO)
  2. Environmental Issues
  3. Improved Responsiveness
19
Q

A Total Cost of Ownership (TCO) benefit increases a business’s return on investment (ROI) and is achieved by __________, __________, and _________.

A
  1. Increased server utilization
  2. Decreased management infrastructure costs
  3. Lowered costs to deploy new environments
19
Q

(True/False) Server consolidation allows one server to virtually host many once-dedicated
servers that may have been underutilized in their stand-alone state.

A

True

20
Q

Name the three environmental issues that virtualization addresses.

A
  1. Reduce electrical energy consumption
  2. Decreased cooling requirements
  3. Decreased physical space requirements
21
Q

Dynamically allocating resources to workloads is __________ and improves the
efficiency and autonomy of resource management.

A

Automatic load balancing.

22
Q

What are the six main areas of concern regarding virtualization security?

A
  1. Training and education
  2. Change control
  3. Asset Tracking and management
  4. Patch Management
  5. Authentication and Authorization

6.Logging and auditing

23
Q

What board considers any changes or upgrades to base infrastructure whether physical or virtual?

A

Change Control and Review Board

24
Q

Organization should create and maintain detailed inventories of software and hardware. This applies to physical and virtual software and falls under the virtualization security concern of __________ and _________.

A

Asset Tracking and Management

25
Q

Define Patch Management

A

process of identifying and remediating security vulnerabilities in software by installing updates

26
Q

What shared operating system makes use of container-based virtualization and allows
applications on the same server to share the kernel?

A

host operating system

27
Q

What are the logical partitions used to separate applications on the same server?

A

Containers

28
Q

The main factors limiting the number of virtual machines (VMs) that a host can support are
________ and _________.

A

Processing power (CPU) and memory (RAM)

29
Q

What is the minimum RAM requirement for one virtual Microsoft Server 2019?

A

512MB

(Megabytes)

30
Q

What is the minimum HDD storage space requirement for Microsoft Server 2019?

A

32GB

(Gigabytes)

31
Q

What is the minimum amount of NICs required to operate a host server?

A

2 NICs

32
Q

What is the recommended amount of NICs required for optimal host server performance?

A

4 NICs

33
Q

(True/False) For host servers without on-board graphics processing units (GPUs), an adapter card will be required to be installed on the motherboard utilizing the PCI Express slot.

A

True

Block 4 (7 decks)

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