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2021 Sep NS0-157 practice

Q41. - (Topic 3) 

To support multi-tenancy, an administrator must create or enable which type of unique 

login account? 

A. vsadmin, for the cluster 

B. admin, for each Vserver 

C. admin, for the cluster 

D. vsadmin, for each vserver 

Answer: D 


Q42. - (Topic 3) 

Which two SMB versions does Data ONTAP Cluster-Mode support? (Choose Two) 

A. SMB 1.0 

B. SMB 2.0 

C. SMB 3.0 

D. SMB 4.0 

Answer: A,B 

Explanation: Explanation/Reference: http://gurkulindia.com/main/2013/06/enhancements-to-nfs-and-smb-netapp-clustermode/ 


Q43. - (Topic 1) 

A company has a vault relationship between ClusterA and ClusterB. After a month of operations, the SnapVault update fails. The primary and secondary volumes have been thin provisioned and are reporting available space. There is connectivity between ClusterA and ClusterB. 

What caused the update failure? 

A. The primary volume’s aggregate is full. 

B. The secondary volume’s aggregate is full. 

C. A cluster peering relationship was not refreshed every month. 

D. There are 251 Snapshot copies on the destination SnapVault. 

Answer: D 


Q44. - (Topic 1) 

In clustered Data ONTAP 8.2, which of the following commands will restore an entire volume 

A. volume snapshot promote 

B. volume snapshot restore 

C. volume snapshot resync 

D. None of the above, just use the .snapshot or ~snapshot directory to restore the entire volume 

Answer: B 


Q45. - (Topic 3) 

In clustered Data ONTAP 8.2 or later, what is largest number of nodes that can be supported with any enabled SAN protocols? 

A. 4 

B. 6 

C. 8 

D. 10 

E. 12 

F. 24 

Answer: C 

Explanation: 

https://communities.netapp.com/docs/DOC-27777 


NS0-157 pdf exam

Replace NS0-157 free practice exam:

Q46. - (Topic 3) 

Which SnapMirror type identifies backup vault relationships? 

A. SV 

B. DP 

C. BV 

D. LS 

E. XDP 

Answer: E 

Explanation: Explanation/Reference: https://library.netapp.com/ecmdocs/ECMP1196807/html/GUID-F096199F-4B20-420A-81E4-0F3AAB98ABCA.html (Snapmirror management) 


Q47. - (Topic 1) 

A customer cannot enable storage failover. You have verified that the cabling is correct, the HA partners can communicate with each other, and cluster HA is configured. 

What must you do to resolve the problem? 

A. Set the HA state in the maintenance boot menu. 

B. Select option 4 in the boot menu. 

C. Set switchless cluster in privilege advanced mode. 

D. Modify epsilon in privilege advanced mode. 

Answer: D 


Q48. - (Topic 1) 

You notice your indirect I/O performance between nodes in your 4-node cluster is slowing down from prior week. Each node has two 10 GB connections to the cluster interconnect, one to each switch. You are using four out of 12 available ports on each cluster interconnect switch. Your cluster network utilization is over 80%. 

What should you do to increase cluster interconnect performance? 

A. Change the SFP+ from 10 Gb to 16 Gb on each node and switch. 

B. Add two more cluster interconnect connections per node. 

C. Add additional ISLs between the two cluster interconnect switches. 

D. Change the cable from TwinAx to optical with SFP+ for better throughput. 

Answer: B 


Q49. - (Topic 1) 

Your network and storage teams have decided to disable flow control on all host, switch, and NetApp interfaces, both 1 Gb and 10 Gb, to increase performance. 

Why does this action increase performance? 

A. It lets the NetApp MTU handle congestion control as needed. 

B. It lets the host-side MTU handle congestion control as needed. 

C. It lets the upper layer protocols handle congestion control as needed. 

D. It lets the lower layer protocols handle congestion control as needed. 

Answer: C 

Explanation: Ports with standard MTU size and jumbo MTU size should never be mixed on the same VLAN. Consider a host and a NetApp F AS device configured on the same VLAN, where the FAS controller is configured for jumbo frames and the host is not. The host will be able to communicate to the FAS device using its standard 1500 byte frames. However, the reply back from the FAS device wi ll be a 9000 byte frame and because the two machines are located on the same VLAN, there is no device fragmenting this frame into the standard 1500 byte size for consumption by the host. 

ftp://ftp.netapp.com/pub/alim/pub/tr-3802.pdf 


Q50. - (Topic 2) 

Which statement is true about a SnapMirror destination vserver? 

A. It must have a read-only Vserver root volume. 

B. It must be in the same cluster as the source Vserver 

C. It must be created with the same language type as the source Vserver. 

D. It must have a different storage efficiency policy than the source Vserver. 

Answer: C 

Explanation: 

Training material: Clustered_Data_ONTAP_82_Data_Protection_Guide How volume SnapMirror works with deduplication You can use volume SnapMirror to replicate a deduplicated volume regardless of size of the volume and logical data in the volume. When using volume SnapMirror with deduplication, you must consider the following information: You can enable deduplication on the source system, the destination system, or both systems. 

The shared blocks are transferred only once. Therefore, deduplication also reduces the use of network bandwidth. When the volume SnapMirror relationship is broken, the default deduplication schedule is applied at the destination storage system. When configuring volume SnapMirror and deduplication, you should coordinate the deduplication scheduleand the volume SnapMirror schedule. You should start volume SnapMirror transfers of a deduplicated volume after the deduplication operation is complete. This schedule prevents the sending of undeduplicated data and additional temporary metadata files over the network. If the temporary metadata files in the source volume are locked in Snapshot copies, these files consume extra space in the source and destination volumes.