Chapter 5 Flashcards
What type of replication does Hyper-V Replica use?
Manual asynchronous
What Hyper-V feature is Hyper-V Replica based on?
Checkpoints
What feature must be configured to use Hyper-V Replica with more than 2 servers?
Extended Replication
What type of authentication transmits Hyper-V Replica traffic unencrypted?
Kerberos (HTTP)
What type of authentication transmits Hyper-V Replica traffic encrypted?
Certificate-Based Authentication (HTTPS)
What PowerShell cmdlet is used to enable Hyper-V Replica?
Set-VmReplicationServer
What firewall rules must be changed on the replica server to allow traffic from the primary server?
Hyper-V Replica HTTP Listener (TCP-In) [for Kerberos] or Hyper-V Replica HTTPS Listener (TCP-In) [for certificate-based authentication]
What three options are available for initial replication?
Send over network, copy to external media, or use an existing VM
What Hyper-V feature makes it possible to move a Hyper-V VM from one host to another with almost no service disruption?
Live Migration
How do you use Failover Clustering with Hyper-V?
Start the New Virtual Machine Wizard from Failover Cluster Manager
What two performance options are available for Live Migrations?
TCP/IP (useful on standard LANs) and SMB (better if you have a dedicated storage network)
What PowerShell commands are used to enable Live Migration?
Enable-VmMigration; Set-VmMigrationNetwork; Set-VmHost -VirtualMachineMigrationAuthenticationType; Set-VmHost -VirtualMachineMigrationPerformanceOption
What PowerShell cmdlet is used to trigger a Live Migration?
Move-VM
What is Shared Nothing Live Migration?
Live Migration that does not require shared external storage
What are the requirements for Shared Nothing Live Migration?
VMs must be on same domain, same CPU family, use gigabit network, and identical virtual switches with the same name
What are the two authentication protocols are available for Live Migration?
Credential Security Support Provider (CredSSP) and Kerberos
What is the default authentication protocol for Live Migration?
CredSSP
What configuration is required to use Kerberos for Live Migration?
The server must be configured for constrained delegation
What two services must be enabled to use Kerberos for Live Migration?
CIFS and Microsoft Virtual System Migration Service
What are the limits of Failover Clustering?
64 servers, 8,000 VMs, and 1,024 VMs per node
What are the requirements for Microsoft to support a server with Failover Clustering?
All hardware and software components in the cluster nodes must meet the qualifications for the Certified for Windows Server 2016 logo
What are two types of dedicated networks recommended for Failover Clustering?
Dedicated networks for cluster and storage traffic
What tools can verify if servers are eligible to be in a Failover Cluster?
Validate Cluster Wizard or the Test-Cluster cmdlet
What tools can be used to create a Failover Cluster?
Create Cluster Wizard or the New-Cluster cmdlet
What type of object is created in Active Directory for a cluster?
Cluster Name Object (CNO)
What account setup is required for a Failover Cluster that does not use AD?
Identical local accounts must be set up on each server
What registry key must be set when creating non-Administrator local accounts for a Failover Cluster?
LocalAccountTokenFilterPolicy
What DNS settings are required for a Failover Cluster that doesn’t use AD?
All nodes must have the same DNS suffix
What PowerShell option is required when creating a Failover Cluster that does not use AD?
-AdministrativeAccessPoint DNS
What is the function of quorum in a Failover Cluster?
To make sure that nodes do not go into a split-brain situation where they update out-of-sync, by making sure that 50% +1 nodes can see each other at all times
What are the three types of quorum witnesses in a Failover Cluster?
Disk Witness (dedicated disk in shared storage), File Share Witness (SMB share with Witness.log file), and Cloud Witness (Azure blob)
What type of quorum witness is best for a single site?
Disk Witness
What type of quorum witness is best for clusters spanning multiple sites?
File Share Witness
What type of quorum witness provides independence from all sites?
Cloud Witness
What tools can be used to modify a cluster quorum?
Configure Cluster Quorum Wizard or the Set-ClusterQuorum cmdlet
What are the four types of network traffic that should be separated for a cluster?
Client communication, cluster communication (heartbeats), iSCSI, and Live Migration
What are some network hardware recommendations to increase high availability?
Use separate network adapters of different brands, separate switches, and redundant network connections or NIC Teaming
How are networks automatically configured for cluster?
Networks with iSCSI traffic are disabled for cluster communication, networks with no default gateway are designated for cluster communications only, networks with a default gateway are configured for client and cluster communication
How do you configure a cluster network for client and/or cluster communication via PowerShell?
(Get-ClusterNetwork “networkname”).role =1 # 0 disables cluster communication, 1 enables cluster communication only, 3 enables client and cluster communication
What part of a cluster can Windows Backup back up?
The cluster database, limited options for Cluster Shared Volumes (CSVs)
What two types of restores are possible for a cluster?
Non-authoritative: restores the database to be overwritten by the cluster; Authoritative: Restores the database as the reference for the cluster
What tool is used to restore a cluster database?
wbadmin, GUI is unavailable
What are some shared storage technologies supported by Server 2016?
Fibre channgel, serial attached SCSI (SAS), and iSCSI
What is the cheapest form of shared storage?
iSCSI
What are the minimum requirements for creating a storage pool?
Three disks of at least 4 GB capacity each
What tool is used to apply Windows updates to clustered nodes?
Cluster-Aware Updating (CAU)
What is the name for the node that manages cluster updates?
Update Coordinator
What are two modes used by an Update Coordinator?
Self-updating and remote updating
What is required for a node to act as an Update Coordinator?
The Failover Clustering tools (the Failover Clustering feature is not required by remote updating nodes)
Which PowerShell cmdlet is used to verify that a cluster is ready for updates?
Test-CauSetup
Which PowerShell cmdlet is used to set up Cluster-Aware Updating?
Add-CauClusterRole
Which PowerShell cmdlet is used to trigger Cluster-Aware Updating?
Invoke-CauRun