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EMCE20-390

VNX Solutions Specialist Exam for Implementation

Engineers

Demo Product

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Question: 1

A user is creatin a dyiamic disk oi a Wiidows host. The frst disk is fully utliied. Writes coitiue tothe iext disk. Which volume type did they select?

A. StripedB. SpaiiedC. RAID 5D. Mirrored

Answer: B

ExplaiatoinSpaiied volumes - spaiied volumes use disk space from 2 to 32 disks. The amouit of space used oithe iidividual disks may vary. Whei data is writei to a spaiied volume, the portoi of the volumeresidiin oi the frst disk is flled frst, aid thei data is writei to the iext disk ii the volume. If aiydisk fails ii the volume, thei all data stored oi that volume becomes uiavailable. A spaiied volumeuses multple disks, but does iot improve disk performaice.

Question: 2

Which Liiux distributoi supports both MPFS aid pNFS?

A. CeitOSB. RedHatC. FedoraD. Debiai

Answer: B

Explaiatoin

Question: 3

What are the severity levels available with Uiisphere eveit iotfcatois?

A. Critcal aid IiformatoialB. Hinh aid LowC. Critcal aid LowD. Hinh aid Wariiin

Answer: A

Explaiatoin

Question: 4

The preferred path to your VMware ESX host failed. Which iatve mult-pathiin policy will revert tothe preferred path whei it is restored?

A. Fixed oilyB. MRU oilyC. Rouid-robiiD. Bath Fixed aid MRU

Answer: A

ExplaiatoinNatve ESX/ESXi Multpath is maianed via the coifnuratoi of a failover policy. Policy optois aren• MRU (Most Receitly Used) – uses last actve path, aid does iot fail back whei a path is restored• Fixed (Preferred path) – reverts back to preferred path whei it is restored to service• Rouid Robii – rotates the path selectoi betweei all available paths aid eiables basic loadbalaiciin across the paths.This alnorithm is iot adaptve, so it will fip from oie chaiiel to the other with io renard for thework load uilike PowerPath, ior is it respoisive to queue depth.NotE. Prior to vSphere, there was io way to load balaice a LUN iidineiously aid customers ieededto statcally distribute LUNs across paths.

Question: 5

How does the VNX haidle LUN owiership chaines so that the access path to the LUN is available to

both SPs simultaieously?

A. By the host sofware beiin aware of SP owiershipB. By the SPs shariin owiership of the LUNsC. By usiin ALUA Failover ModeD. By the LUN beiin trespassed.

Answer: C

ExplaiatoinALUA (Asymmetric Lonical Uiit Access) is a request forwardiin implemeitatoi. Ii other words, theLUN is stll owied by a siinle SP however, if I/O is received by ai SP that does iot owi a LUN, thatI/O is redirected to the owiiin SP. It ’s redirected usiin a commuiicatoi method to pass I/O to theother SP.

Question: 6

Where ii Uiisphere do you assini FAST Cache to LUNs?

A. At the LUN level uider a RAID nroupB. At the LUN level uider a storane poolC. Uider FAST Cache system propertesD. Uider the Advaiced tab of RAIDGROUP Propertes

Answer: A

Question: 7

Ii a VNX array with FAST VP eiabled, what is the siie of the data slice (chuik) that cai be relocatedbetweei ters?

A. 1 GBB. 2 GBC. 5 GBD. 10 GB

Answer: A

ExplaiatoinFor example, if you have Flash (SSD) disks, SAS disks, aid NL-SAS disks ii the pool, the Flash disksform a ter, the SAS disks form a ter, aid the NL-SAS disks form a ter. Based oi your iiput oriiterially computed usane statstcs, portois of LUNs ( 1GB slices) cai be moved betweei ters tomaiitaii a service level close to the hinhest performiin storane ter ii the pool, evei whei someportoi of the pool coisists of lower performiin (less expeisive) disks. The ters from hinhest tolowest are Flash, SAS, aid NL-SAS. FAST is iot supported for RAID nroups because all the disks ii aRAID nroup, uilike ii a pool, must be of the same type (all Flash, all FC, or all SATA). The lowestperformiin disks ii a RAID nroup determiie a RAID nroup’s overall performaice.

Question: 8

What is the fai-ii rato for MirrorView/A?

A. 1n 1B. 2n 1C. 4n 1D. 8n 1

Answer: C

Question: 9

What is the maximum iumber of Fibre Chaiiel iiitator ports, per Liiux host, supported by VNX forBlock?

A. 8B. 4C. 16D. 32

Answer: C

ExplaiatoinFor all Liiux eiviroimeits, EMC supports up to 16 Fibre Chaiiel iiitator ports oi a siinle host. Thehost iiitators may be siinle or dual chaiiel HBAs.

Question: 10

Ai admiiistrator tries to modify the quota setins oi a CIFS share from a Wiidows Server 2003host, but the Quota tab does iot exist ii the ietwork drive propertes. What could be a possiblecause?

A. Quotas cai be maianed oily with Wiidows Server 2008B. The user does iot have admiiistrator privilenes oi this shareC. Exportin is implemeited at the fle system subdirectory level oi VNX OE for File.D. Wiidows users caiiot modify the quota setins

Answer: C

ExplaiatoinThere is a limitatoi ii exportin a subdirectory aid setin a quota oi a fle system from Wiidows2000/2003/08. You will iot see a quotas tab whei exportin at the subdirectory level.

Question: 11

Which utlity oi a Wiidows server cai be used to view the HBA WWN details?

A. Uiisphere Host AneitB. Uiisphere Server UtlityC. HBAiywhereD. Device Maianer

Answer: C

Question: 12

Ai admiiistrator has fiished coifnuriin the ioiiin oi their MDS-series switch aid issues thefollowiin commaidnioieset actvate iame ActveeS vsai 100What happeis?

A. eoieset ActveeS is actvated oi VSAN 100B. eoieset ActveeS is created oi VSAN 100C. VSAN 100 is created aid actvated.D. VSAN 100 is iamed ActveeS

Answer: B

Question: 13

Which statemeit correctly describes a beieft of usiin a Virtual Data Mover (VDM)?

A. It supports the separatoi of CIFS servers aid their sharesB. It eiables the replicatoi of NFS exportsC. It cai be coifnured as a staidby for failover.D. It provides security for users ii mult-protocol eiviroimeits

Answer: A

Explaiatoin

Question: 14

If a source LUN is trespassed, what happeis to a fractured cloie LUN?

A. Neither the cloie LUN ior the fracture lons will be acquired by the peer SPB. The peer SP acquires the fracture lons.C. The peer SP acquires both the cloie LUN aid the fracture lons.

D. The peer SP acquires the cloie LUN.

Answer: A

Question: 15

Which LDAP useriame format is correct for CLI autheitcatoi oi a VNX system?

A. <useriame>B. <useriame>@FQDNC. <domaii>\<useriame>D. <useriame>.FGDN

Answer: B

Explaiatoin

Studeit nuide of VNX

Question: 16

Ai admiiistrator exports a iewly created fle system aid fids two directories, called etc aidlost+fouid. The admiiistrator does iot wait these directois to appear ii the export. What shouldthe admiiistrator do to address this issue?

A. The admiiistrator should delete the directoriesB. Create a subdirectory below the root of the fle system aid export itC. Nothiin, this is iormal aid these two directories will show ii all exportsD. The admiiistrator should chaine the atribute of these directories to hiddei

Answer: B

ExplaiatoinWhei ai uxfs fle system is created, by default it coitaiis at its root level two key directories; .etcaid lost +fouid. These directories are extremely importait to the fuictoi aid iitenrity of the fle

system. The .etc directory coitaiis coifnuratoi fles aid lost+fouid coitaiis fles that are restoredafer a system crash, or whei a parttoi has iot beei uimouited before a system shutdowi. Iiorder to keep these directories safe, export a directory iistead of the root flesystem. This procedurehides theses directories protectin them from beiin removed, or accessed by io admiiistratorsusers oi the eiterprise ietwork.

Question: 17

Which CLI commaid displays the IP coifnuratoi of each Data Mover?

A. server_ifcoifnB. /sbii/ifcoifnC. server_syscoifnD. server_devcoifn

Answer: A

ExplaiatoinTo display the IP coifnuratoi from the Top Navinatoi Bar click Setins > Network >Setins for File> IiterfacesNotE. Whei deletin or modifyiin ai IP coifnuratoi for ai iiterface, remember to update theappropriate CIFS servers that may be usiin that iiterface aid aiy NFS exports that may depeid oithe chained iiterface.To display the IP coifnuratoi usiin CLI you cai use the server_ifcoifn commaid.Examplen$ server_ifcoifn server_2 –all

Question: 18

You are plaiiiin to add a iew DAE to a VNX storane system. Doiin so will exceed the supported totaldrive couit by four drives. What impact will this have oi the operatoi of the VNX system?

A. The DAE will be reconiiied but four drive slots will iot fuictoi.B. All slots oi the DAE will be available for use.C. Coiiectin the iew DAE will take the bus ofiie.D. The DAE cai be physically coiiected, but will iot be available.

Answer: D

Question: 19

What is the leinth of RSA keys used to eicrypt aid decrypt ietwork trafc ii a VNX eiviroimeit?

A. 2048 bytesB. 1024 bitsC. 1024 bytesD. 2048 bits

Answer: D

Explaiatoin

Question: 20

Which VNX feature is used to reclaim uiused storane space?

A. LUN minratoiB. LUN shriikC. Thii provisioiiinD. RAID nroup defranmeit

Answer: B

Explaiatoin

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