NetApp NCIE SAN ONTAP NS0-520 Questions & Answers

• Question 41:

  You have an existing 8-node Netapp Cluster serving NFS data, and you want to expand your cluster by an additional four nodes to serve ISCSI. In this scenario, where would you validate this configuration?

  A. Active IQ Upgrade Advisor

  B. Interoperability Matrix Tool

  C. SAN Administration Guide

  D. Hardware Universe

  Correct Answer: D

  Hardware Universe shows how many nodes and which filers are compatible to mix between them

• Question 42:

  You are installing an AFF A250 system with ONTAP 9.8 software. Your customer asks you about the recommended LIF configuration for the ISCSI protocol. In this scenario, which two statements are correct (choose two)

  A. Each node in an ISCSI configuration must be connected to a minimum of two ethernet switches

  B. All LIFs from the SVM are connected to a single Ethernet switch

  C. Each SVM in an ISCSI configuration must have a minimum of two LIFs per node

  D. Each SVM in an ISCSI configuration must have a minimum of one LIF per node

  Correct Answer: AC

  It is recommended that all SVMs in ISCSI configurations have a minimum of two LIF's per node in separate Ethernet networks for redundancy and MPIO across multiple paths.

  You can find more information on this link:

  https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm- sanconf%2FGUID-650DC466-CA3F-4032-8005-078FCEEB52E7.html

• Question 43:

  You are configuring a FAS8300 HA pair running ONTAP 9.8 with two hosts that requires SAN LUNs. The cluster is in a secure data center without switches. In this scenario, which block protocol is supported on the hosts?

  A. FCP

  B. ISCSI

  C. FCoE

  D. NVMe

  Correct Answer: B

  Direct-attachment

  In a direct-attached configuration, one or more hosts are directly connected to the controllers.

  You can find more information on this link:

  https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm- sanconf%2FGUID-193CC377-5C6F-4D3C-B42E-CE71AB6AA77F.html

• Question 44:

  You have a two node Netapp ONTAP cluster that is hosting FC LUNs for 90 SAN hosts. The hosts are experiencing occasional performance problems and receiving QFULL responses from the cluster

  nodes. Which action would solve this issue?

  A. Increase the queue depth on the target ports

  B. Configure additional FC target ports

  C. Increase the queue depth on the initiator ports

  D. Configure additional FC ports on the hosts

  Correct Answer: B

  Adding more FC initiators on host will not solve this bottle-neck situation, we can try to increase the queue depth but we need the number of hosts and the number of target ports to calculate it correctly. We need to add more FC target ports on our storage to keep the load balanced and distributed You can find more information on this link https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm- sanconf%2FGUID-A055B184-0876-4376-9C75-35FE8C9BE832.html

• Question 45:

  An administrator is asked to provision a SAN environment in which host applications can monitor LUN space and performance space reclamation.

  Which LUN type would satisfy these requirements?

  A. SCSI thick provisioned LUN

  B. SCSI thin provisioned LUN

  C. NetApp thin provisioned volume

  D. NetApp thick provisioned volume

  Correct Answer: B

  Automatic host-side space management with SCSI thinly provisioned LUNs If your host supports SCSI thin provisioning, you can enable the space-allocation option in ONTAP to turn on automatic host-side space management.

  You can find more information on this link:

  https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm- sanag%2FGUID-93D78975-6911-4EF5-BA4E-80E64B922D09.html

• Question 46:

  You are designing a new 4-node AFF A400 SAN cluster with 20 ISCSI hosts. Each AFF A400 node will have four data LIFs. Each ISCSI host needs to access every LUN over two LIFs per node on every SAN node.

  In this scenario, which Netapp SAN feature enable this connectivity?

  A. Port sets

  B. HBA queue depth

  C. Selective LUN mapping

  D. Asymmetric namespace

  Correct Answer: A

  SLM will choose 4 LIFs per node, being 8 LIF total (owner and HA partner), enabling portsets will help to limit the ports per node... that way we can stablish only 2 LIF per node. Creating port sets and binding igroups to port sets In addition to using Selective LUN Map (SLM), you can create a port set and bind the port set to an igroup to further limit which LIFs can be used by an initiator to access a LUN. If you do not bind a port set to an igroup, then all of the initiators in the igroup can access mapped LUNs through all of the LIFs on the node owning the LUN and the owning node's HA partner. You can find more information on this link: https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm- sanag%2FGUID-5CC27202-A43F-429F-AB13-C70E7CD58E09.html

• Question 47:

  Referring to the exhibit, which WWPN would safely be removed from the zone?

  A. 50:0a:09:84:8d:7c:51:d5

  B. 20:09:00:a0:98:32:99:07

  C. 21:00:00:c0:dd:19:4b:f3

  D. 20:27:00:a0:98:32:99:07

  Correct Answer: C

  Important:

  A WWN pool can include only WWNNs or WWPNs in the ranges from

  20:00:00:00:00:00:00:00 to 20:FF:FF:FF:FF:FF:FF:FF or from 50:00:00:00:00:00:00:00 to 5F:FF:FF:FF:FF:FF:FF:FF. All other WWN ranges are reserved. To ensure the uniqueness of the Cisco UCS WWNNs and WWPNs in the SAN fabric, we recommend that you use the following WWN prefix for all blocks in a pool: 20:00:00:25:B5:XX:XX:XX You can find more information on this link: https://www.cisco.com/en/US/docs/unified_computing/ucs/sw/cli/config/guide/1.4.1/CLI_Co nfig_Guide_1_4_1_chapter21.html

• Question 48:

  You are asked to configure a small environment for a branch office. The customer has two new VMware ESXI hosts and a Netapp FAS2750 for the site. They want to allocate 10 GB for their ISCSI network to

  be used for datastores. However, they do not want to purchase any new switches for the environment. In this scenario, Which statement is correct?

  A. The SMB protocol will need to be used

  B. 10 GB switches are required for this configuration

  C. The environment will have to be configured with 1 GB networking

  D. Configure direct attached connections between the two hosts and storage

  Correct Answer: D

  Direct-attachment

  In a direct-attached configuration, one or more hosts are directly connected to the controllers.

  You can find more information on this link:

  https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm- sanconf%2FGUID-193CC377-5C6F-4D3C-B42E-CE71AB6AA77F.html

• Question 49:

  File deletions from a SAN-attached host that is using Windows Server 2016 are not freeing up space in LUN lun3. Referring to the exhibit, which setting is preventing the SCSI UNMAP operation?

  A. Space reservation honored is set to false

  B. Space reservation is set to disabled

  C. Clone Autodelete Enabled is set to false

  D. Space Allocation is set to disabled

  Correct Answer: D

  For clustered Data ONTAP, support for SCSI UNMAP begins in the 8.2 release family. For a LUN to advertise support for and accept SCSI UNMAP commands, enable the space- allocation option on LUNs which you expect to use this feature

  with.

  You can find more information on this link:

  https://kb.netapp.com/Advice_and_Troubleshooting/Data_Storage_Software/ONTAP_OS/ ONTAP_and_Windows_SCSI_unmap_and_space_reclamation

  

  Table

• Question 50:

  A database administrator needs to ensure that snapshot copies of database files across multiple LUNs are taken at the same point in time. Which action achieves this outcome?

  A. Create each LUN within the same FlexVol volume

  B. Create each LUN on the same Fabric Pool aggregate

  C. Add each LUN volume to the same snapshot schedule

  D. Create each LUN within the same FlexGroup Volume

  Correct Answer: A

  We can discard Flexgroup because it only works on NAS Protocols. We can discard LUNs and Aggregates because snapshots are not taken at that level Snapshots are taken at volume level You can find more information on this link: https://community.netapp.com/t5/ONTAP-Discussions/can-we-creat-multiple-luns-from- same-volume-on-AFF300/m-p/153049#M34153