NetApp NS0-520 Online Practice Questions and Exam Preparation

NetApp NS0-520 Online Questions & Answers

• Question 41:

  Click the Exhibit button.

  

  You have a 2-node cluster in a single-fabric SAN. Host 1 and Host 2 are part of a VMware cluster and access the same LUNs that reside in your NetApp storage.

  Referring to the exhibit, what would be a way to test whether the multipathing is properly configured in your environment?

  A. Verify whether all destination storage target ports are contained in the same zone as Host 1.
  B. Administratively set ports 0a and 0c on Controller 1 to the offline setting.
  C. Power off the SAN switch.
  D. Disconnect Host 1 port and verify whether Host 2 is still able to run the VMs.
  B. Administratively set ports 0a and 0c on Controller 1 to the offline setting.

• Question 42:

  Which FC service is used by a host for discover service to locate FC targets that are available?

  A. The fabric configuration server
  B. The fabric name service
  C. The fabric zone server
  D. A. The fabric security server
  B. The fabric name service

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  Explanation/Reference:

  When a node is connected to the FC SAN, each SVM registers the World Wide Port Name (WWPN) of its LIF with the switch Fabric Name Service.

  You can find more information on this link:

  https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm- sanag%2FGUID-6DDD6DEC-B3B2-482E-AB56-08641D35222E.html

• Question 43:

  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
  D. Hardware Universe

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  Explanation/Reference:

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

• Question 44:

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

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  Explanation/Reference:

  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 45:

  What are two benefits of implementing VLANs for ISCSI configuration? (choose two)

  A. Reduced number of broadcast domains
  B. Increased performance
  C. Increased security
  D. Increased resiliency
  A. Reduced number of broadcast domains
  C. Increased security

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  Explanation/Reference:

  When you implement VLANs in large IP network infrastructures, you derive the following benefits:

  Increased security.

  VLANs enable you to leverage existing infrastructure while still providing enhanced security because they limit access between different nodes of an Ethernet network or an IP SAN.

  You can find more information on this link:

  https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm- sanconf%2FGUID-C5288E55-DAED-4050-84A2-71BF13BC6556.html

• Question 46:

  

  Referring to the exhibit, what is the problem with switch port 0?

  A. The transmit and receive links were switched.
  B. The SFP+ is faulty.
  C. The receive power is lower.
  D. The link is not connected.
  C. The receive power is lower.

• Question 47:

  A customer's Red Hat Linux 7.0 server's Linux native DM-MP settings for multi pa thing have not been set correctly. In this scenario, what would cause this problem?

  A. The multi path, conf file contains the blacklist stanza.
  B. Challenge-Handshake Authentication Protocol (CHAP) is not enabled.
  C. The rdloaddriver=scsi_dh_alua was not added to the end of the boot loader file.
  D. The incorrect WWID was added to the multipath.conf file.
  D. The incorrect WWID was added to the multipath.conf file.

• Question 48:

  

  You are asked to serve iSCSI LUNs in an existing SVM on your AFF A220 using ONTAP 9.5. You verified that the iSCSI license is configured on your cluster and that the iSCSI protocol is enabled. Referring to the exhibit, what is needed to allow hosts to log into the iSCSI target?

  A. Create new LIFs with the iSCSI data protocol.
  B. Create new igroups with the host IQNs.
  C. Add iSCSI to the data protocol of the existing LIFs.
  D. Map LUNs to the igroups.
  D. Map LUNs to the igroups.

• Question 49:

  You are configuring FC ports on front-end SAN switches for a 4-node Metrocluster configuration across two data centers. You need to ensure that each data center serves FC LUNs when an FC port goes offline in one data center. In this scenario, which front end switch setting must be modified to avoid overlap when a new port comes online?

  A. NPIV enabled
  B. NPIV reject
  C. WWPN reject
  D. ANA mapped
  E. WWNN reject
  A. NPIV enabled

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  Explanation/Reference:

  Best practice: NPIV is required for FC LIFs to operate correctly. Before creating FC LIFs, make sure that any fabrics attached to an ONTAP system have NPIV enabled.

  You can find more information on this link:

  https://www.netapp.com/pdf.html?item=/media/10680-tr4080pdf.pdf

• Question 50:

  Exhibit.

  

  A customer is testing a dual-fabric FC SAN configuration as shown in the exhibit. The zones are implemented on the switches shown below.

  

  IF all the nodes are in the SLM reporting nodes list, how many paths per LUN should the customer expect when simulating a node failure by powering off Node 04?

  A. 4 paths
  B. 6 paths
  C. 8 paths
  D. 2 paths
  B. 6 paths