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TPM > VMware > Flashcards

VMware Flashcards

1
Q

Virtualization

A

process of creating software based representation of things (hardware simulator) to run ops systems and applications on single server. types:

  1. Server (vSphere)
  2. Storage (vSan)
  3. Network (NSX)
  4. Desktop (Horizon view)
  5. Application (ThinApp)
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2
Q

What is hypervisor

A

Process that creates and runs the virtual machines by sharing its physical resources. vmware product is ESXi (Elastic sky X integrated)
2 types:
Type 1: Directly run on the Physical server hardware (ESXi)
Type 2: Hosted Hypervisor- runs on the guest operating system and depend on it (vmware workstation)

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3
Q

What is HCI

A

Hyper converged infrastructure-
The “Whole package” of server (hypervisor), storage (SAN), network into single hardware.
software virtualizes the hardware conventional hardware defined systems.

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4
Q

What is ESXi

A

Small operating system directly installed on physical hardware.
Used for server virtualization
type 1 hypervisor

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5
Q

Difference ESX and ESXi

A

ESX is the old system, not in used. it had console on linux. management interface
ESXi the new system, no console, activities done via VMkernel itself. it provides DCUI (direct console user interface)

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6
Q

What is VMkernel

A

The VMkernel is a network interface between ESXi and virtual machine. provide layer 2+3 services to the ESXi host. The VMkernel manages most of the physical resources on the hardware, including memory, physical processors, storage, and networking controllers

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7
Q

difference Host and guest machine

A

Host- physical hardware (mem, cpu)

Guest- virtual machine, have their own cpu, operating system, mem, storage

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8
Q

Workstation

A

Type 2 hypervisor, on windows or linux OS
Mostly for testing applications
Allows create and run virtual machines.
latest version 15 pro.

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9
Q

Virtual machine

A

Computer software to simulate real computer

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10
Q

Virtual machine files

A

on the backend, 12 different files

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11
Q

What is cluster

A

Logical grouping of ESXi hosts.

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12
Q

What is VLAN

A

virtual LAN (local area network).
One LAN splits as if it was different ports
3 Methods:
External switch tagging (EST)- tag physical switch
Virtual switch tagging (VST)- tag before leave host
Virtual guest tagging (VGT)- tag by virtual machine

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13
Q

vCenter

A

feature of vSphere. management of ESXi hosts and virtual machine on one console.
latest version 6.7

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14
Q

What is PSC

A

Platform service controller. feature of vSphere infra.

Share authentication between all vmware products

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15
Q

vCenter operating system

A

Photon OS based on Linux.

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16
Q

What is SSO

A

Single sign on. component of Vmware Cloud.

authentication from single user only

17
Q

What is vmWare NSX

A

Network Virtualization Software for software defined Data centre
Customers- IT teams wants to enhance and simplify network security and speed, without increasing overhead vulnerability.
Virtualization of network component in datacenter using software.
Provides complete set of logical network elements & services.
Deployed over any existing network hardware.
Main component of SDDC (software defined data centre)

18
Q

Key features of NSX

A

SRD LVNM

Switching
Routing
Distributed firewalling
Load Balancing
VPN
NSX gateway
Multi site networking
19
Q

Scrum

A

crum is an agile framework for developing, delivering, and sustaining complex products,[1] with an initial emphasis on software developmen

20
Q

What is vmware

A 
Provide various applications for virtualisation
Categorized 5 main divisions
1. Server (vSphere)
2. Storage (vSan)
3. Network (NSX)
4. Desktop (Horizon view)
5. Application (ThinApp)
21
Q

vmware benefits

A
  1. Running multiple operating systems and applications on single computer
  2. Consolidate hardware to get higher productivity from fewer servers
  3. Serves more than 50% of total cost
  4. Simplifies IT management and speed deployment of new applications.
22
Q

DRS

A

distributed resource scheduler.
Works on the cluster level.
Monitors the workload on the ESXi.

23
Q

7 layers network

A 
Layer 7 - Application
Layer 6 - Presentation
Layer 5 - Session
Layer 4 - Transport
Layer 3 - Network
Layer 2 - Data Link
Layer 1 - Physical
24
Q

NSX-V vs NSX- T

A

NSX-V: For vSphere

NSX-T: for other platforms

25
Q

Vmware competitors

A 
Microsoft
Cisco
Oracle
Red hat
Nutanix 
Unisys
26
Q

Employees and revenue

A

24,200

11.1B

27
Q

NSX competitors

A

Cisco aci
Azure virtual network
Palo Alto panorama

TPM (2 decks)

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