NetApp NetApp Certifications NS0-157 Questions & Answers

• Question 171:

  Clustered data ontap 8.2 supports which four features? (choose four)

  A. MetroCluster

  B. Data protection mirrors

  C. Load-sharing mirrors

  D. NDMP tape backup

  E. Non-disruptive upgrades

  F. SnapLock

  Correct Answer: BCDE

• Question 172:

  How does the NetApp Remote Support Agent (RSA) connect to NetApp support?

  A. NetApp Support initiates a secure connection to the RSA.

  B. NetApp Support initiates a non-secure connection to the RSA.

  C. The RSA initiates a secure connection to NetApp Support.

  D. The RSA initiates a non-secure connection to NetApp Support.

  Correct Answer: C

  Remote Support Agent uses the following security measures:

  Connections are outbound only.

  Connection between Remote Support Agent and Remote Support Enterprise is always initiated by Remote

  Support Agent. This ensures that there is only an outbound connection from your site to technical support.

  All communications are authenticated.

  Communication between Remote Support Agent and Remote Support Enterprise is encrypted using 128bit VeriSign signed Secure Socket Layer (SSL) certificates. Remote Support Agent retains a copy of the

  Remote Support Enterprise public certificate to ensure that communication occurs only with NetApp

  Support. If the authentication fails, the connection is broken and no data is sent.

  NetApp Remote Support Agent (RSA) is supported on the RLM and SP modules. Link: https://

  library.netapp.com/ecm/ecm_download_file/ECMP1200041

• Question 173:

  What three statements are true about LIF failover? (Choose three.)

  A. A node management Ethernet LIF will never automatically revert back to its home port.

  B. A node management Ethernet LIF can fail over to its partner node when a port is down.

  C. A data Ethernet LIF will not automatically revert back to its home port.

  D. A cluster management Ethernet LIF will never automatically revert back to its home port

  E. A cluster management Ethernet LIF can fail over when a port is down.

  F. A data Ethernet LIF can fail over when the cluster is in quorum.

  Correct Answer: BCE

  https://library.netapp.com/ecmdocs/ECMP1401193/html/GUID-6DBD40F8- EA21-42AE-82CFAEB556BEC783.html

  "Scenarios that cause a LIF failover

  LIF failover occurs in scenarios such as port failure, network interface failure, or cable failure. LIFs can be

  associated with failover rules that enable you to reroute the network traffic to other available ports in the

  cluster.

  LIF failover occurs in the following scenarios:

  When there is a power failure

  When automatic revert is enabled on a LIF and that LIF's home port reverts to the administrative up status

  The LIF automatically migrates back to the home port.

  When the port hosting a LIF is in the administrative down status

  The LIFs move to another port.

  When a node reboots or falls out of quorum

  The LIFs on that node fail over to the ports on other nodes. If a node returns to quorum, the LIFs

  automatically revert to the ports on the node, provided the ports are the home ports for the LIF and

  automatic revert is enabled on the LIF.

  For more information about quorum, see the Clustered Data ONTAP System Administration Guide for

  Cluster Administrators.

  When automatic revert is enabled on a LIF and that LIF's home port reverts to the administrative up status the LIF automatically migrates back to the home port."

• Question 174:

  Which protocols does clustered Data ONTAP HA support with Infinite Volumes?

  A. NFSv3, NFSv4.1, and SMB1.0

  B. NFSv2 and SMB1.0 only

  C. NFS v1, NFSv2, and NFSv3 only

  D. NFSv2, NFSv3, and NFSv4.0 only

  E. NFSv3 only

  F. All supported NAS and SAN protocols on Data ONTAP

  Correct Answer: A

  http://www.globbtv.com/microsite/18/Adjuntos/_TR- 4078_INFINITEVOLUME_BPG.PDF (page 5, supported configuration) Clustered DOT 8.1 supports NFSv3 only.

  ***But on 8.2 it supports: NFSv3, NFSv4.1, CIFS***

• Question 175:

  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.

  Correct Answer: C

  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.

• Question 176:

  Storage QOS maximum throughput limits can be defined in terms of: A. IOPS only

  B. MB/s only

  C. IOPS or MB/s

  D. IOPS and MB/s

  Correct Answer: C

  Storage QoS workload management (available in clustered Data ONTAP 8.2 and later) allows you to define service levels by creating policies that control the resources that can be consume by individual files, volumes or LUNS ?or entire SVMs to manage performance capacity limits (defined in terms of a maximum value for IOPS or MB/sec) on a group of files or volumes or LUNs within an SVM or on the entire SVM. Link: http://www.netapp.com/us/system/pdf-reader.aspx?pdfuri=tcm:10-113725- 16andamp;m=wp-7191.pdf

• Question 177:

  With clustered Data ONTAP 8.2 or later, which are valid values for Fractional reserve?

  A. You cannot change the fractional reserve setting In clustered Data ONTAP 8.2 and later

  B. 0, 25, 50, 75, or 100

  C. 0, 50, or 100

  D. 0 or 100

  E. 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, or 100

  Correct Answer: D

  Fractional reserve setting can be set only to 0 or 100 In previous versions of Data ONTAP, you could set the fractional reserve setting for a FlexVol volume to any value between 0 and 100, inclusive. Starting with Data ONTAP 8.2, the fractional reserve setting can be set only to 0 or 100. If you upgrade a system to Data ONTAP 8.2 with volumes whose fractional reserve settings are between 1 and 99, the fractional reserve setting for those volumes is set to 0. Link: http://www.gokhancakir.com/wp-content/ uploads/2013/06/215-07974_A0_ur001.pdf

• Question 178:

  What's the minimum System Manager version to access cluster 8.2?

  A. System Manager 1.0

  B. System Manager 2.2

  C. System Manager 2.0

  D. System Manager 3.0

  Correct Answer: B

• Question 179:

  One node of a 2-node cluster is shut down to replace a NIC. All RDB rings fall out of quorum. To diagnose the problem, what should the administrator do first?

  A. Disconnect and reconnect the InfiniBand cable

  B. Issue storage failover show from the clustershell

  C. Issue cluster ha show from the clustershell

  D. Verify that the cluster switch is functioning properly

  Correct Answer: C

  https://library.netapp.com/ecm/ecm_download_file/ECMP1196796 Page 20

• Question 180:

  Which three disk-type configurations are supported for Flash Pool? (Choose three)

  A. FC and SAS

  B. FC and SSD

  C. SATA and SAS

  D. SATA and SSD

  E. SSD and SAS

  Correct Answer: BDE

  Link: https://library.netapp.com/ecm/ecm_download_file/ECMP1196912