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Windows Server 2016 > Hyper-V Clustering > Flashcards

Hyper-V Clustering Flashcards

1
Q

What is the PoSH command to enable a Hyper-V replica for a VM?

A

Enable-VMReplication

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2
Q

How do you view a list of Hyper-V replication commands?

A

Get-Command -Module Hyper-V -Noun replication

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3
Q

What is the PoSH command to failover a VM?

A

Start-VMFailover

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4
Q

What is a downside using CredSSP authentication protocol when performing Hyper-V migrations?

A

Requires live migrations to be performed directly at the Hyper-V host, doesn’t support double hop carrying credentials

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5
Q

What is a requirement when using Kerberos authentication for Hyper-V migration?

A

Must set up contained delegation in AD for both computer accounts

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6
Q

Which services need to be configured for Kerberos Contrained Delegation to support live migration?

A

cifs

Microsoft Virtual Migration Service

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7
Q

What is the difference between a live migration and a shared nothing live migration?

A

Live migration: Requires shared storage

Shared Nothing Live Migration: Does not require shared storage

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8
Q

What is quorum?

A

Number of failures cluster can withstand before it shuts down
Needs 51% vote

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9
Q

When the is not node majority in failover clustering, what must be configured?

A

A witness

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10
Q

What is the PoSH parameter that controls the type of cluster being created?

A

-AdministrativeAccessPoint

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11
Q

What are the typed of witness for quorum?

A

Disk Witness
File Share Witness
Cloud Witness

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12
Q

What type of backup is used to backup cluster database?

A

System state

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13
Q

What is the difference between General Purpose File Server and SoFS?

A

General Purpose File Server: Active/Passive (User Data)

Scale Out File Server: Active/Active (Application Data) *SoFS requires CSV

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14
Q

What are the use cases for SoFS?

A

Hyper-V

SQL Server

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15
Q

What is the CSVFS?

A

Cluster Shared Volume File System: Acts as filter to break out file and meta based operations separately

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16
Q

What the dependencies for SoFS?

A

SMB 3.0
Cluster Shared Volumes
Failover Clustering

17
Q

What is the PoSH command to create fault domains?

A

New-ClusterFaultDomain

18
Q

What are the features that combat transient failures in a stretch cluster

A

Unmonitored state - Not being monitored by cssv service
Isolated state - No longer active member but still hosts roles
Quarantined state - No longer aloud to join cluster for period of time if leaves cluster

19
Q

What is storage spaces direct (S2D)?

A

Locally attached software defined storage, alternative to expensive SAN & NAS

Uses Software Storage Bus to allow all nodes to see local storage

20
Q

What are the types of cluster storage for storage spaces direct (S2D)?

A

Converged Cluster

Hyper-Converged Cluster

21
Q

What is the difference between Converged (Disaggregated) and Hyper-Converged cluster?

A

Converged: Dedicated SoFS/SMB/CSV, requires two separate clusters
Hyper-Converged: Uses local cluster, cannot scale

22
Q

What is the maximum number of hosts you can have in an NLB cluster?

A

32

23
Q

What are the different NLB cluster operation modes?

A

Unicast - 2NIC minimum
Multicast - 1 NIC
IGMP Multicast - 1 NIC

24
Q

How does unicast cluster operation mode work?

A

Requires a NIC dedicated to NLB cluster
Causes subnet flooding
Hosts replace real MAC with NLB generated one

25
Q

How does multicast cluster operation mode work?

A

Adds Layer 2 MAC address to NIC of each host
Causes subnet flooding
Requires configuration on network side

26
Q

How does IGMP multicast cluster operation mode work?

A

All traffic intended for cluster will only go through ports connected to cluster host
Does not flood subnet

27
Q

What is client affinity in NLB cluster rules?

A

Controls if users request will be handles from same machine it originated from

28
Q

What operation should you perform when bringing down an NLB host for upgrade?

A

DrainStop

Blocks further sessions to host until active sessions die, at which point it can go down

Windows Server 2016 (15 decks)

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