NetApp NS0-158 Online Practice Questions and Exam Preparation

NetApp NS0-158 Online Questions & Answers

• Question 11:

  You have a read-only volume that needs protection within the cluster, but you do not have a SnapMirror license. Which mirror type would you use to protect the volume?

  A. DP
  B. LS
  C. TDP
  D. XDP
  B. LS

  ---

  A load-sharing mirror reduces the network traffic to a FlexVol volume by providing additional read-only access to clients. You can create and manage load-sharing mirrors to distribute read-only traffic away from a FlexVol volume. References: https://library.netapp.com/ecmdocs/ECMP1368017/html/GUID-4931A901- D6D0-458B-8D3A-A92427FDD8B8.html

• Question 12:

  Which LIF role type is used by a volume move operation between nodes?

  A. data
  B. cluster
  C. intercluster
  D. cluster-mgmt
  D. cluster-mgmt

• Question 13:

  What is the minimum number of disks required to create a data aggregate with a RAID type of RAID-TEC?

  A. 7
  B. 6
  C. 5
  D. 4
  B. 6

  ---

  The aggregate that is to be converted to RAID-TEC must have a minimum of six disks.

  References: http://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm- psmg%2FGUID-E63A0CB2-10B6-4998-AE34-10A5F8998361.html

• Question 14:

  Which command prompt is displayed when a cluster named cl1 is in Advanced privilege mode?

  A. cl1::>
  B. cl1::*>
  C. cl1-01>
  D. SP cl1-01>
  B. cl1::*>

  ---

  The following example sets the privilege level to advanced and then to admin:

  vs1::> set -privilege advanced Warning: These advanced commands are potentially dangerous; use them only when directed to do so by technical support. Do you wish to continue? (y or n): y vs1::*> set -privilege admin

  References: https://library.netapp.com/ecmdocs/ECMP1196807/html/GUID-FBB48AE8- C74D-4472-A5CD-799D46ED2E85.html

• Question 15:

  Click the Exhibit button.

  

  Referring to the exhibit, which two statements are true? (Choose two.)

  A. A default tree quota is set on volume svm1_data1.
  B. An explicit quota is set on qtree1, and a derived quota is set on qtree2.
  C. A derived quota is set on qtree1, and an explicit quota is set on qtree2.
  D. A default user quota is set on volume svm1_data1.
  B. An explicit quota is set on qtree1, and a derived quota is set on qtree2.
  D. A default user quota is set on volume svm1_data1.

  ---

  A quota enforced as a result of a default quota, rather than an explicit quota (a quota with a specific target), is referred to as a derived quota. To see derived quotas, you can generate a quota report. In the report, a derived user or group quota is indicated by a Quota Specifier that is either blank or an asterisk (*).A derived tree quota, however, has a Quota Specifier; to identify a derived tree quota, you must look for a default tree quota on the volume with the same limits. Since they are not manually configured quota rules, derived quotas do not appear in the output of the quota policy rule show command.

  References: https://library.netapp.com/ecmdocs/ECMP1368017/html/GUID-C2CC0C07- 9CB6-4891-BEB4-9EF87145DAA3.html

• Question 16:

  When a two-node cluster is expanded, which cluster configuration would be supported?

  A. a 4-node switched cluster
  B. a 4-node switchless cluster
  C. a 3-node switched cluster
  D. a 3-node switchless cluster
  C. a 3-node switched cluster

  ---

  If you are adding nodes to a two-node switchless cluster, you must have installed and configured the cluster management and interconnect switches before adding additional nodes. The switchless cluster functionality is supported only in a two-node cluster.

  References: https://library.netapp.com/ecmdocs/ECMP1636037/html/GUID-B13FF812- 785E-4E62-9914-30E7A8F51A4C.html

• Question 17:

  To log in to the cluster with OnCommand System Manager, a cluster administrator account must be authorized for which two application types? (Choose two.)

  A. HTTP
  B. SSH
  C. ONTAPI
  D. service processor
  A. HTTP
  C. ONTAPI

  ---

  You must have a cluster user account configured with the admin role and the http, ontapi, and console application types. References: https://library.netapp.com/ecmdocs/ECMP1636037/html/GUID-0E8373DA- D297-4FBA-9C4D-3AD3C169D37F.html

• Question 18:

  Click the Exhibit button.

  

  You have a 2-node NetApp cluster. You perform a storage failover and notice that IP address 10.1.100.21 is unreachable while omegana1-01 is rebooting. After omegana1-01 is back online, the IP address becomes reachable again. However, IP address 10.1.100.20 was still reachable during the reboot. The commands shown in the exhibit were executed before the storage failover.

  In this scenario, why was IP address 10.1.100.21 unreachable?

  A. The LIF for 10.1.100.21 has an incorrect failover setting.
  B. The failover group for 10.1.100.21 is misconfigured.
  C. The node management LIFs cannot fail over to other nodes.
  D. The Address Resolution Protocol (ARP) cache needs to be cleared on the upstream switch.
  B. The failover group for 10.1.100.21 is misconfigured.

  ---

  The purpose and the default behavior of a LIF is indicated by the role associated with that LIF. Each LIF is assigned a default failover group and failover policy when you create the LIF. These settings automatically configure the LIF with a list of failover targets from the ports available in the failover group, so you need to understand the relationship between LIF roles and failover groups.

  

  References: https://library.netapp.com/ecm/ecm_get_file/ECMP1636021

• Question 19:

  Click the Exhibit button.

  

  You are receiving reports of high storage latency from the database administrators. The NetApp storage system is connected to the network using 10 Gb. You run the sysstat command as shown in the exhibit. In this scenario, why is storage latency high?

  A. The system does not have enough cache.
  B. The system is experiencing a disk bottleneck.
  C. The CPU usage is too high.
  D. The network interfaces are maximized out.
  B. The system is experiencing a disk bottleneck.

• Question 20:

  You have a FlexVol volume with LUNs and need to set policies to prevent an ENOSPC error on the host. In this scenario, which two commands will keep the LUN available to the host? (Choose two.)

  A. volume autosize
  B. snapshot autodelete
  C. snapshot delete
  D. volume size
  B. snapshot autodelete
  C. snapshot delete

  ---

  ENOSPC is a UNIX operating system error that sometimes returns the message Not enough space is available to service your request." The error message occurs because of a shortage of file system space or lack of available media blocks.

  You can delete Snapshot copies manually, or automatically by enabling the Snapshot autodelete capability for the volume.

  Define and enable a policy for automatically deleting Snapshot copies by using the volume snapshot autodelete modify command.

  You can use the snap delete command to delete a Snapshot copy before the preset interval to free disk space or because it is a manual Snapshot copy that is no longer needed but is not going to be automatically deleted.

  Note: We get ENOSPC errors because Data ONTAP lets the Snapshot copy grow into the volume space. Every write in WAFL is a write to a new block. If an old block is part of a Snapshot copy, Data ONTAP needs to preserve the old block

  and the new changed block. This is not a problem specific to NetApp. Every storage vendor who supports a snapshot feature has to deal with it. There are two options when there is no space to accommodate the Snapshot copies:

  References: https://community.netapp.com/fukiw75442/attachments/fukiw75442/backup- and-restore-discussions/5980/1/tr-3633.pdf