Quiz
vSAN
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Fragen in diesem Quiz (50)
1Which two vSAN Health Check items are included for vSphere Update Manager integration? (Choose two.)
- AvSAN build recommendation
- BvSAN object health
- COnline health connectivity
- DvSAN release catalog up-to-date
- EPerformance data collection
2What is a benefit of using vSphere Distributed Switches in a vSAN network?
- ASimplifies network abstraction
- BEnables network redundancy
- CSupports faster network adapters
- DProvides the ability to adjust the MTU
3A single disk in a vSAN disk group suffers from an unrecoverable hardware failure. This causes vSAN to set the health status for all disks in the group to
Permanent disk loss, indicating disk failure.
Assuming all other disks have not suffered from a hardware failure, why would vSAN mark all disks in the group as failed?- AThe vSAN disk management service has failed.
- BThe affected vSphere host is offline.
- CThe key management server is offline.
- DDeduplication and compression are enabled on the vSAN cluster.
4In stretched clusters, what is a benefit of implementing a virtual witness rather than a physical witness?
- AReduced vSphere licensing
- BShared metadata between separate clusters
- CIncreased vSAN datastore capacity
- DIncreased compute for running VMs
5A storage administrator discovers vSAN is rebalancing components across a cluster randomly and faces degraded performance on the applications.
What should be done to avoid these issues?- ASize at least two disk groups on each node
- BMaintain a minimum of 10 percent unused capacity
- CKeep total storage consumption <70 percent
- DEnsure there is sufficient queue depth on the I/O Controller
6What is the purpose of slack space in vSAN?
- AIncreases overall vSAN capacity
- BAllows for maintenance and failure operations
- CStores vSphere HA heartbeats
- DProvides vSAN analytic data
7The objects on a 4-node vSAN cluster are assigned a RAID-5 policy. A network outage occurs causing host one to lose connectivity with the rest of the cluster.
Seventy-five minutes elapse.
What is the health state of the objects?- AReduced availability with no rebuild
- BReduced availability with no rebuild "" delay timer
- CNon-availability related incompliance [non-compliance]
- DReduced availability
8A vSAN 5-node cluster has two sets of VMs, each associated with a separate storage policy.
-Group A (Storage Policy: FTT=0)
-Group B (Storage Policy: FTT=2)
What are two possible results when two hosts in the vSAN cluster fail permanently? (Choose two.)- AVMs in Group B will become inaccessible if a third host permanently fails.
- BvSAN will rebuild data associated with Group A.
- CVMs in Group A might experience data inaccessibility.
- DVMs in Goup B might experience data loss.
- EA host can be put into maintenance mode without impacting VMs in either Group A or B.
9A 3-node vSAN cluster will take which two actions, when a drive is physically removed from a vSAN node? (Choose two.)
- AMarks all components on that device as absent
- BMarks all components on that device as degraded
- CWaits for the configured delay timer before rebuild
- DMarks all components on that device as stale
- EStarts component rebuild immediately
10A vSAN cluster has this configuration:
-4 hosts with 1 disk group per host
-Each disk group contains 1 cache device and 7 capacity devices
What are two ways to increase the vSAN datastore storage capacity? (Choose two.)- AAdd a host to the cluster
- BAdd a cache device to each disk group
- CAdd a capacity drive to each disk group
- DReplace a cache device with a larger cache device
- EAdd a disk group to each host
11An organization is no longer compliant with security requirements because a vSphere administrator disabled encryption on a vSAN cluster.
Which vCenter Server role ensures only authorized vSphere administrators have access to encryption functionality?- AAdministrator
- BRead-only
- CNo cryptography administrator
- DNo access
12vCenter Server is offline.
What are two ways to check the health of a vSAN cluster? (Choose two.)- AESXi system logs on vSAN datastore
- BvSphere Host Client
- Cesxcli
- DHCIBench
- EEsxtop
13What are two purposes of a vSAN storage policy? (Choose two.)
- ADetermine how storage objects are provisioned
- BDetermine vSAN encryption level
- CGuarantee the required level of service
- DEnable deduplication and compression
- EEnable TRIM/UNMAP
14An administrator wishes to prevent notifications of vSAN Health status during a scheduled maintenance window.
What can be done to achieve this?- ADisable SNMP service
- BDisable the performance service
- CRun performance diagnostics prior to scheduled maintenance
- DSilence the alert from the HTML client
15An administrator is planning to deploy a new vSAN cluster with these requirements:
-Physical adapters will share capacity among several traffic types
-Guaranteed bandwidth for vSAN during bandwidth contention
-Enhanced security and performance
What must be considered when configuring the new vSAN cluster?- AIsolate traffic in a VLAN and utilize Network I/O Control
- BUtilize IOPS Limit rules in storage policies
- CUtilize jumbo frames with Network I/O Control
- DImplement vSphere I/O filters
16Which two conditions should be verified before removing the ESXi host from a vSAN cluster? (Choose two.)
- AData evacuation is complete.
- BEncryption is disabled.
- CESXi host is in maintenance mode.
- DResyncs are running.
- EAll objects are currently healthy.
17Which VM file type resides in the VM home namespace object on a vSAN datastore?
- A.vswp
- B.vmsn
- C.vmx
- D.vmem
18In a 10-node hybrid vSAN cluster, each node has seven 4TB magnetic disks and one 2TB SSD.
What is the raw storage capacity of the vSAN datastore?- A140TB
- B150TB
- C280 TB
- D300 TB
19Refer to the exhibit.
A solution architect is setting up a highly resilient vSAN hybrid cluster.
Why is the cache incorrectly sized in this configuration?
- ACache disk needs to meet vSAN Compatibility Guide
- BCache-to-capacity ratio needs to be sized lower
- CCache-to-capacity ratio needs to be sized higher
- DNumber of cache disks in disk group is insufficient.
20An all-flash vSAN cluster contains four nodes.
Which two storage policies can the cluster satisfy? (Choose two.)- AFTT=2 (RAID-1 Mirroring)
- BFTT=2 (RAID-6 Erasure Coding)
- CFTT=1 (RAID-1 Mirroring)
- DFTT=1 (RAID-5 Erasure Coding)
- EFTT=3 (RAID-1 Mirroring)
21A company implements a vSAN environment with linked clone virtual desktops and homogeneous desktop operating systems. During the last three months, users have experienced intermittent high latency, degraded performance, and lockout from desktops.
Which two methods should an administrator use to monitor and respond to the issues? (Choose two.)- AvRealize Log Insight
- BvRealize Automation
- CLive Optics
- DHCIBench
- EvRealize Operations Manager
22End-users are complaining that an application running on an all-flash vSAN datastore is not performing well.
Which performance chart should an administrator view to troubleshoot this issue?- ARecovery Write IOPS
- BResync Latency
- CRead Cache Read IOPS
- DWrite Buffer Free Percentage
23Which two features are available with the Cluster Quickstart wizard? (Choose two.)
- ADeploy a vSAN Witness appliance
- BUpdate storage controller drivers
- CCheck for errors and inconsistencies
- DSetup lockdown mode for vSAN hosts
- EPerform pre-check evaluation for data migration
24A system administrator running a 6-node cluster is trying to enable the deduplication and compression feature. During the process of switching it on, the General vSAN error occurs.
What is the possible reason the General vSAN error occurred?- AForce provisioning setting is required.
- BThe cluster is a hybrid environment.
- CStorage policies require FTT=1.
- DThe cluster is an all-flash environment.
25The vSAN host memory needs to be replaced and the entire operation is expected to take 90-120 minutes.
Which vSAN advanced setting can be adjusted to avoid rebuild operations during the host hardware maintenance?- ASite Read Locality
- BForced Provisioning
- CObject Repair Timer
- DThin Swap
26You are designing a vSAN stretched cluster solution.
What is the maximum number of nodes possible for this solution?- A15 per data site + 1 witness host
- B30 per data site + 1 witness host
- C32 per data site + 1 witness host
- D64 per data site + 1 witness host
27What are two recommended reasons for configuring a cluster with at least one node in addition to the minimum required number? (Choose two.)
- ATo ensure object accessibility
- BTo support the use of RAID-6
- CTo provide more flexible storage policy options
- DTo provide full protection during maintenance mode operations
- ETo support data at rest encryption on vSAN hybrid clusters
28vCenter reports a number of vSAN network alarms on a 2-node vSAN Direct Connect cluster. The test pings show irregularities in the ping results.
Using vSAN Health service, which two checks should be used to identify the network root cause? (Choose two.)- APhysical disk operation health
- BNetwork latency
- CvSAN extended configuration
- DvSAN disk balance
- EvSAN basic unicast connectivity
29A vSAN administrator is designing a new all-flash vSAN cluster. The cluster will host read intensive applications.
Which factor should be included in the design to improve read performance?- AMultiple disk groups
- BLarge capacity disks
- CLarge cache disks
- DLarge controller cache
30Which storage policy action results in a component resync?
- AEnabling object checksum
- BChanging object space reservation to thick provisioning
- CAdding an IOPS Limit rule to a storage policy
- DChanging the failure tolerance method
31vSAN is configured with a storage policy with a Failures To Tolerate (FTT) set to three.
Which type of redundancy is being used?- ARAID-0 (Striping)
- BRAID-1 (Mirroring)
- CRAID-6 (Erasure Coding)
- DRAID-5 (Erasure Coding)
32Which default VMware vSphere High Availability cluster setting must be changed when using a vSAN stretched cluster?
- ADatastore with All Paths Down
- BDatastore with Permanent Device Loss
- CResponse for Host Isolation
- DEnable Host Monitoring
33The cluster level backend IOPS performance graph shows a higher-than-average number of IOPS.
What is a possible reason for this?- AData resynchronizations
- BLow volume of vSAN vital memory pools
- CDRS invoking multiple vMotion migrations
- DDestaging congestion
34An administrator of a vSAN 6.5 environment is planning a path to move to unicast for the vSAN network.
How will the administrator achieve this?- AEnable LACP on vSAN switch ports.
- BUpgrade vCenter and vSAN nodes to vSAN 6.6 or later.
- CEnable unicast on the vSAN interfaces.
- DDisable multicast for vSAN using ESXCLI commands.
35When using vSAN Encryption, where does the Key Encryption Key persistently reside?
- Ain /etc/vmware/ssl on each vSAN host
- Bin the KMS server
- Cin a VM configuration file on vSAN
- Din the vCenter Server cache
36What is a mandatory requirement for a vSAN stretched cluster?
- ATwo witness hosts protected by vSphere Fault Tolerance
- BMinimum of two guaranteed lines of 10Gbps bandwidth
- CvSphere Replication configured between the data sites
- DLatency between data sites must be less than or equal to 5ms
37An architect is asked to design a vSAN cluster with these requirements:
-Supports erasure coding storage policy
-Minimized inaccessibility from single device failures
-Ability to re-protect data after a failure
The desired configuration should be able to survive a single failure.
Which configuration satisfies the design requirements?- A3-node hybrid vSAN cluster
- B4-node hybrid vSAN cluster
- C4-node all-flash vSAN cluster
- D5-node all-flash vSAN cluster
38A new vSAN cluster needs to run 900 VMs and protect against one failure.
What is the minimum number of nodes needed to meet the requirement?- A3
- B4
- C5
- D6
39Refer to the exhibit.
In a 2-node vSAN environment, a storage administrator has setup a vSAN storage policy.
When the stripe width is changed to three, what is the approximate component size of each replica marked in red?
- A33GB
- B50GB
- C66GB
- D100GB
40Which two factors should be considered when planning usable vSAN datastore capacity? (Choose two.)
- AFlash Read Cache Reservation percentage
- BFailure tolerance method
- CStripe width
- DIOPS limit for object
- EFailures To Tolerate
41An ESXi host is being re-purposed from a 4-node cluster. The default policy is in use and storage utilization is low.
Which maintenance mode should be used to avoid storage policy non-compliance?- AEnsure accessibility
- BNo data migration
- CProactive rebalance
- DFull data migration
42What would cause a vSAN: Basic (unicast) connectivity check failure in vSAN Health Check?
- AOne or more hosts in the cluster are unable to ping the vSAN VMkernel adapters of other hosts in the cluster.
- BThe throughput of the physical network supporting vSAN traffic is less than the recommended minimum throughput.
- CThe vSAN VMkernel adapter is shared with another service such as vMotion.
- DvSAN is configured to use multicast to transmit data.
43What is the maximum number of failures an object can tolerate with RAID-6?
- A2
- B3
- C4
- D6
44What is a supported use of the vSAN iSCSI target service?
- ATo provision storage as a VM Raw Device Mapping
- BTo provision storage for third-party hypervisors
- CTo provision storage for an ESXi host
- DTo provision storage for an Oracle RAC cluster
45A pre-vSAN 6.6 node is added to a vSAN cluster that was recently upgraded to vSAN 6.7.
What is the expected behavior for this new node?- AThe node will communicate via unicast with all cluster members.
- BThe node will fail to join the vSphere cluster.
- CThe node will communicate via multicast with all cluster members.
- DThe node will be network partitioned from the other cluster members.
46Which vSAN Health Check category is viewed to confirm supported storage controller drivers are in use across all hosts in the cluster?
- ACapacity view
- BDevice mapping
- CvSAN Build Recommendations
- DHardware compatibility
47A host in a vSAN cluster has the following VMware Compatibility Guide approved disks:
-3 solid state devices (SSD) used for cache
-12 magnetic drivers (HDD) used for capacity
Which two options are valid disk group configurations? (Choose two.)- A1 Disk Group with 2 SSD and 6 HDD
- B1 Disk Group with 3 SSD and 12 HDD
- C2 Disk Groups with 1 SSD and 6 HDD each
- D3 Disk Groups with 1 SSD and 4 HDD each
- E4 Disk Groups with 3 HDD each
48The Resyncing Objects view in the vCenter UI reports that some objects are currently resyncing.
Which two actions would cause the objects to resync? (Choose two).- AA change to the storage policy is applied to the objects.
- BA VM snapshot is being deleted.
- CAn ongoing vMotion operation is moving a VM between hosts in the cluster.
- DA host failure occurs in the cluster.
- EHA Virtual Machine Monitoring forced a VM to reboot.
49Refer to the exhibit.
A storage administrator is designing a vSAN stretched cluster with production workload running on a preferred site. A VM has been deployed on the preferred site.
How does the VM read I/O?
- A50 percent from preferred site and 50 percent from non-preferred site
- B70 percent from preferred site and 30 percent from non-preferred site
- C100 percent from preferred site
- D100 percent from non-preferred site
50What is the minimum recovery point objective (RPO) that can be achieved using vSphere Replication with vSAN?
- A5 minutes
- B15 minutes
- C30 minutes
- D60 minutes
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- Beschreibung
- Quiz am vSAN, erstellt von Adrian ortiz am 10/08/2021.
- Autor
- Adrian ortiz
- Sprache
- English
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