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?

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
How does multicast cluster operation mode work?
Adds Layer 2 MAC address to NIC of each host Causes subnet flooding Requires configuration on network side
26
How does IGMP multicast cluster operation mode work?
All traffic intended for cluster will only go through ports connected to cluster host Does not flood subnet
27
What is client affinity in NLB cluster rules?
Controls if users request will be handles from same machine it originated from
28
What operation should you perform when bringing down an NLB host for upgrade?
DrainStop | Blocks further sessions to host until active sessions die, at which point it can go down