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NS0-157 Exam Questions - Online Test


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Q1. - (Topic 2) 

Which two actions protect an Infinite volume from the loss of a namespace constituent? (Choose two) 

A. Minor the namespace constituent by using an intracluster data protection mirror 

B. Mirror the namespace constituent by using an Intercluster data protection mirror 

C. Mirror the namespace constituent by using a load-sharing mirror 

D. Mirror the namespace constituent by using a FlexCache mirror 

Answer: B,C 

Q2. - (Topic 3) 

With clustered data ONTAP 8.2 and later, which statement is true about deduplication and Flex Vol sizes? 

A. Deduplication is supported up to half the maximum volume size for the platform 

B. Deduplication is limited to 16 TB 

C. Deduplication is limited to 32 TB 

D. Deduplication is supported up to the maximum volume size for the platform. 

Answer:

Q3. - (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:

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 

Q4. - (Topic 1) 

A customer has an aggregate, aggr1_01 with three RAID groups: rg0, rg1, and rg2. Each RAID group has 15 disks, and the aggregate’s maximum RAID group size is set to 18 disks. The customer adds three additional disks to the aggregate using the following command: 

storage aggregate add-disks –aggregate aggr1_01 –diskcount 3 

How are the RAID groups affected by this command? 

A. The disks are added to a new RAID group rg3. 

B. Each RAID group receives one additional disk. 

C. The three disks are added to RAID group rg2. 

D. The three disks are added to RAID group rg0. 

Answer:

Q5. - (Topic 1) 

You must monitor user login messages on your clustered Data ONTAP storage. 

Which tool provides a graphical user interface to view “unsuccessful login attempt” messages? 

A. OnCommand System Manager 

B. OnCommand Insight 

C. OnCommand Workflow Automation 

D. OnCommand log Manager 

Answer:

Reference: http://www.netapp.com/us/products/management-software/system-manager.aspx 

Q6. - (Topic 2) 

What are two ways a storage administrator can improve the operational availability of NAS application data? (Choose two.) 

A. By backing up data to a USB disk 

B. By configuring ALUA on the host 

C. By providing multiple data logical interfaces 

D. By utilizing the volume move feature 

Answer: C,D 

Q7. - (Topic 2) 

Which two statements are true with clustered Data ONTAP support of IPv6? (Choose two) 

A. IPv4 and IPv6 configurations are supported on the cluster management LIF 

B. IPv4 and IPv6 configurations are supported on the same data LIF 

C. IPv6 allows a data LIF to span more than one Vserver 

D. IPv4 and IPv6 configurations are supported on the cluster interconnect 

Answer: A,B 

Explanation: 

Link: https://library.netapp.com/ecm/ecm_download_file/ECMP1196907 

Q8. - (Topic 3) 

With clustered Data ONTAP 8.2 or later, and administrator may use NDMP command at which two levels? (select two) 

A. Node 

B. Cluster 

C. Intercluster 

D. VServer 

Answer: A,D 

Explanation: 

https://library.netapp.com/ecmdocs/ECMP1196874/html/GUID-65733B88-154A-432B-B1D1-B5F27D46F4E8.html 

Q9. - (Topic 2) 

Prior to breaking a SnapMirror DP relationship, which statement is true about mounting the destination volume? 

A. It can be mounted in the namespace of any Vserver in the source- or destination cluster. 

B. It cannot be mounted until after the SnapMirror break is performed. 

C. It can be mounted in the namespace of the destination Vserver. 

D. It can be mounted only in the same namespace as the source volume. 

Answer:

Explanation: 

Link: https://library.netapp.com/ecmdocs/ECMP1287556/html/GUID-8A3F828F-CD3D-48E8-A171-393581FEB2ED.html 

Q10. - (Topic 1) 

An administrator is working with an application group to resolve a performance problem 

within the environment. They are experiencing slow read speeds and are trying to determine what could be done to improve performance. 

What would you add to the system to improve performance? 

A. NVRAM 

B. FlashCache 

C. RAM 

D. processors 

Answer:

Reference: https://technet.microsoft.com/en-us/library/cc720418(v=ws.10).aspx