[Nov 15, 2022] Latest Questions NS0-520 Guide to Prepare Free Practice Tests
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NEW QUESTION 80
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.
Answer: D
NEW QUESTION 81
Which formula is appropriate for calculating target port Queue Depth?
- A. The sum of the Queue Depth setting for all hosts using a physical port
- B. The number of LIFs using the physical port * Maximum Host HBA Queue Depth setting
- C. The number of physical ports * 2048
- D. The number of LIFs using a physical port * 256
Answer: B
NEW QUESTION 82
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. NetApp thick provisioned volume
- B. SCSI thick provisioned LUN
- C. NetApp thin provisioned volume
- D. SCSI thin provisioned LUN
Answer: D
Explanation:
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
NEW QUESTION 83
Click the Exhibit button.
A customer is troubleshooting an AFF A700 2-node cluster that is running out of space. They need to add two additional shelves, one shelf to stack-1, and a shelf to stack-2.
Referring to the exhibit, how many cables are required?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION 84
You configured a SAN host with a 4-node ONTAP 9.5 cluster that uses default settings. All paths are available from the host to the four nodes. You have a requirement to see only two paths to each LUN. One path is optimized and the other is non-optimized.
In this scenario, which NetApp SAN feature supports this requirement?
- A. igroups
- B. VLANs
- C. SLM
- D. portsets
Answer: B
NEW QUESTION 85
You upgraded your Linux hosts to SUSE Enterprise Linux 15. In this scenario, which two actions should you perform before you test asymmetric namespace access (ANA)? (Choose two)
- A. Verify if the NVMe service has started
- B. Verify if the version of Netapp ONTAP software is 9.5 or later
- C. Verify if the LUNs and namespaces are in the same volume.
- D. Verify if there is only one LIF in the SVM
Answer: A,B
Explanation:
ONTAP 9.5 Introduces ANA
https://www.netapp.com/de/media/10681-tr4684.pdf
NEW QUESTION 86
Which row of items should you look up in the IMT (Interoperability Matrix Tool) when designing a NetApp Storage Solution for a customer?
- A. Host OS & patches, FC WWPN, Volume Manager, File System version
- B. Host OS, iSCSI IQN, Volume Manager, Clustering
- C. Host OS & patches, HBA driver, Volume Manager, File System, Clustering
- D. Host OS, HBA driver, Host Memory & CPU Speed, File System, Clustering
Answer: C
NEW QUESTION 87
You have an AFF A220 cluster connected to a dual fabric topology. You must ensure that SAN hosts do not lose access to LUNs during unplanned failures.
Which two operations should be performed to accomplish this task? (Choose two.)
- A. Initiate a reboot of one Fibre Channel switch.
- B. Manually set all LUNs offline.
- C. Turn the power off on one disk shelf.
- D. Manually set all FC LIFs on a single node to "down".
Answer: A,D
NEW QUESTION 88
A storage administrator needs to ensure that an ONTAP FC LUN is accessible for a remote data center. The ISL ports are reporting errors. The trunkshow command output from a Brocade switch is shown below.
- A. Set the ISL ports as FL_Ports
- B. Set the ISL ports as E_Ports
- C. Set the ISL ports as N_Ports
- D. Set the ISL ports as F_Ports
Answer: B
Explanation:
On each switch fabric, you must configure the switch ports that connect the Inter-Switch Link (ISL). These ISL ports are otherwise known as the E-ports.
You can find more information on this link:
https://library.netapp.com/ecmdocs/ECMP1636017/html/GUID-B2BBB025-02A9-442C-9910-00FEF253CE52.html
NEW QUESTION 89
You have finished deploying a Netapp AFF All SAN Array Cluster and want to test the persistent ports feature. In this scenario, how would you accomplish this task?
- A. Disconnect an FCP initiator port
- B. Perform a takeover of a node
- C. Disable a SAN LIF
- D. Disconnect an FCP target port
Answer: B
Explanation:
If we don't have OnCommand Insight, then we should not pull out a cable as test because it won't be detected properly.
Doing a planned takeover will meet the requirements asked.
You can find more information on this link:
https://www.netapp.com/pdf.html?item=/media/10379-tr4515.pdf&v=20217121554 (26)
NEW QUESTION 90
An administrator configures NVMe within an SVM for a test environment. The administrator creates an NVMe namespace and an NVMe subsystem. The administrator then maps the namespace to the subsystem. However, when the administrator establishes a connection to a supported host, the following error message appears: No discovery log entries to fetch.
What is the solution to this error?
- A. Use the nvme ns-rescan /dev/nvme0 command to rescan the bus.
- B. Add the host WWPN to the subsystem.
- C. Add the host NQN to the subsystem.
- D. Disable the host HBA and re-enable it to clear the buffers.
Answer: C
NEW QUESTION 91
A customer is deploying a SAN cluster of A700 nodes and wants to ensure that the SAN cluster will maintain a quorum in the event of a rack level power failure. Which two statements are true in this scenario? (choose two.)
- A. Three racks are required
- B. Six nodes are required
- C. Four nodes are required
- D. Two racks are required
Answer: A,B
Explanation:
The quorum rule states that to make changes to the configuration in our cluster, we need to have more than half of the nodes available. This prevents configuration conflicts if we lose connectivity between the nodes in our cluster.
So, if we have only 2 racks and 4 nodes we could never get more than half of the nodes available if one of those racks power fails.
We need 6 nodes separated on 3 racks, so we can have more than half of the nodes available if one of those racks power fails.
NEW QUESTION 92
A customer needs to change ports 0e and 0f on AFF_1 to support FC.
Referring to the exhibit, which three steps are required to accomplish this task? (Choose three.)
- A. Restart the FC service.
- B. Issue the ucadmin modify -node AFF_1 -adapter 0e -mode FC -type initiator command.
- C. Take ports 0e and 0f offline.
- D. Reboot the node.
- E. Issue the ucadmin modify -node AFF_1 -adapter 0e -mode FC -type target command.
Answer: A,B,C
NEW QUESTION 93
In an NVMe/FC environment, the host cannot discover the namespace on the AFF system. Referring to the exhibit, what is the problem?
- A. The NVMe service is not running on the SVM
- B. The host MPIO drivers are not installed
- C. NVMe is not supported on the FC adapter
- D. The NQN is not correct
Answer: D
Explanation:
We would not be able to run that command if NVMe is not enabled
NVMe is supported on the same SVM along with FC protocol
The multipath tool on NVMe is called ANA
NQN needs to be correctly declared on the subsystem to map the new NVMe resources
NEW QUESTION 94
Exhibit.
An administrator is configuring FCoE on Cisco Nexus switches for a new AFF A200 ONTAP cluster. The administrator executes the commands shown in the exhibit to create the necessary network configuration.
Which VLAN is responsible for controlling the FCoE traffic on the new interface?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 95
You are configuring a VMware sphere host for FC access to a Netapp ONTAP cluster. In this scenario, which two tasks does Netapp recommend performing on the Vsphere host? (choose two)
- A. Use the Netapp Virtual Storage Console to configure the host settings
- B. Zone the host by using the host WWNNs
- C. Update the HBA driver
- D. Set the queue depth on the host to 8
Answer: A,C
Explanation:
Zoning the host using WWNNs is not recommended. Netapp always recommends to use WWPN to zone correctly.
We can not stablish a queue depth value because we don't have the amount of ports and hosts to calculate the recommended queue depth Installing VSC and updating the HBA driver are best practices recommended by Netapp You can find more information on this link:
https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.exp-iscsi-esx-cpg%2FGUID-C751F905-04B4-4DE6-ADC4-A47EA9076078.html
https://docs.netapp.com/ontap-9/topic/com.netapp.doc.exp-fc-esx-cpg/FC%20express%20configuration%20for%20ESXi%20using%20VSC.pdf (page 7)
NEW QUESTION 96
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