NS0-162 Exam Dumps - Netapp Certified Data Administrator (NCDA) Questions and Answers

To delegate administration of the SVM to an SVM administrator, you need to create the vsadmin user account in the new SVM and configure role-based access control (RBAC) for the vsadmin user account. The vsadmin user account is the default SVM administrator account that has full access to the SVM resources and can perform all SVM-related tasks. RBAC is a feature that allows you to control the access and permissions of users and groups based on their roles. You can use RBAC to assign roles, capabilities, and access methods to the vsadmin user account. Creating a LIF for SVM management and setting a password for the vsadmin user account are optional tasks that you can perform after creating the vsadmin user account and configuring RBAC for it. References :- Delegate administration to SVM administrators with System Manager - ONTAP 9.7 and earlier, Create a new SVM, Role-Based Access Control (RBAC) Express Guide

 Quorum is a measure of cluster health and function that indicates how clusters address potential communications and connectivity issues. Quorum is maintained by a simple majority of nodes that are healthy and can communicate with each other. In a 4-node cluster, there is a possibility of a tie in the number of nodes that can communicate with each other. To avoid this, one node has an extra fractional voting weight called epsilon. Epsilon is a tie breaker that helps the cluster decide which node will maintain the master copy of the replicated databases (RDB). The node with epsilon will always be part of the quorum, unless it is unhealthy or isolated. References :- About quorum and epsilon, What is Cluster HA and how is Epsilon utilized to maintain RDB Quorum?

 You can use ONTAP System Manager or the command line interface to disable the unused Ethernet ports in an ONTAP 9.8 cluster. ONTAP System Manager is a web-based graphical user interface that enables you to manage storage systems, clusters, and resources. The command line interface is a text-based interface that enables you to perform administrative tasks using commands. Both methods allow you to modify the network port settings and remove the ports from the broadcast domain. Active IQ Config Advisor and Active IQ Unified Manager are not methods to disable the unused Ethernet ports, but tools to monitor and optimize the cluster performance and configuration. References :- Monitor the reachability of network ports in ONTAP 9.8 and later, Map network ports using ONTAP 9.8 or later, Map network ports using ONTAP 9.7 or earlier

To protect the data on your ONTAP C190 cluster using the native SnapMirror technology, you need to have two products that support SnapMirror replication and can run ONTAP software. The following two products would satisfy this request:

• ONTAP Select: This is a software-defined storage solution that runs on VMware ESXi hosts and can create and manage ONTAP clusters and nodes on the virtualized hardware. ONTAP Select supports SnapMirror replication for data protection and disaster recovery between ONTAP Select clusters or between ONTAP Select and other ONTAP systems12.
• Cloud Volumes ONTAP: This is a software-only storage service that runs on public cloud platforms such as AWS, Azure, and Google Cloud and provides enterprise-grade data management features such as SnapMirror replication. Cloud Volumes ONTAP supports SnapMirror replication for data protection and disaster recovery between Cloud Volumes ONTAP instances or between Cloud Volumes ONTAP and other ONTAP systems34.
• Cloud Volumes Service for AWS and Azure NetApp Files are not the products that can satisfy this request, as they are fully managed cloud storage services that do not run ONTAP softwareand do not support SnapMirror replication. They provide native cloud replication features such as AWS Backup and Azure Backup, which are different from SnapMirror technology56. References :- ONTAP Select overview, SnapMirror replication for ONTAP Select, Cloud Volumes ONTAP overview, SnapMirror replication for Cloud Volumes ONTAP, Cloud Volumes Service for AWS overview, Azure NetApp Files overview.

 To find the highest latency seen on restore, you need to look at the output of the table that shows the latency measurements for different operations and sizes. The highest latency is 10021 ms, which is the maximum latency for the GET operation with 8KB size. This means that when the users recover files with the Windows Previous Versions tab, they are reading data from the cloud tier that has been tiered using the snapshot-only policy, which causes high latency and slow restores.

• The other latencies are not correct, as they are lower than 10021 ms. The maximum latency for the PUT operation with 4MB size is 10500 ms, but this is not related to the restore operation, as it is writing data to the cloud tier. The maximum latency for the GET operation with 4KB size is 9591 ms, which is slightly lower than 10021 ms. The maximum latency for the GET operation with 32KB size is 7889 ms, which is much lower than 10021 ms. The maximum latency for the GET operation with 256KB size is 7838 ms, which is also much lower than 10021 ms. References :- FabricPool overview, FabricPool requirements, FabricPool best practices, High READ Latency from the fabric pool aggregate.

Two-factor authentication (2FA) is a security mechanism that requires users to provide two pieces of evidence to prove their identity before accessing a system. ONTAP supports two methods of 2FA: public key and SAML. Public key authentication uses a pair of cryptographic keys (one public and one private) to verify the user’s identity. SAML authentication uses a web-based protocol that allows users to log in to an application by using a secure identity provider (IdP). Both methods are required to set up 2FA for the ONTAP CLI. IPsec and password are not2FA methods, as they only provide one factor of authentication. References :- Set up multifactor authentication, TR-4647: Multifactor Authentication in ONTAP

https://docs.netapp.com/us-en/ontap/data-protection/convert-mode-snapmirror-synchronous-task.html On the link above it states: You cannot modify the policy of a Snapmirror Synchronous relationship to convert its mode.

 Intercluster LIFs are used for communication between FlexCache clusters and for data transfer between origin and cache volumes. If the WAN connection drops, the intercluster LIFs on both sides of the FlexCache relationship will be marked as down. To troubleshoot the disconnect, you can ping the intercluster LIFs from another cluster or from a host on the same network to verify their reachability. You can also use the network ping-lif command to ping the intercluster LIFs from the cluster shell. References :- FlexCache overview, Unable to clean FlexCache relationship, FlexCache in ONTAP, What Is FlexCache?

 The route is a network configuration that defines how the traffic from a LIF is routed to a destination. The route consists of a destination, a gateway, and a metric. The destination is the IP address or subnet that the LIF wants to reach. The gateway is the IP address of the next-hop router that forwards the traffic to the destination. The metric is a numerical value that indicates the preference of the route. In this scenario, the route for the SVM vs0 has a destination of 0.0.0.0/0, which means any IP address or subnet. The gateway is 10.61.208.1, which is the IP address of the router that connects the LIF to the rest of the network. The metric is 20, which is a relatively low value that indicates a high preference. However, the gateway is incorrect, as it does not match the subnet of the LIF. The LIF has an IP address of 192.0.2.130 and a netmask of 255.255.255.0, which means its subnet is 192.0.2.0/24. The gateway should be an IP address within the same subnet, such as 192.0.2.1. This would allow the LIF to communicate with the router and reach other destinations. The incorrect gateway causes connectivity issues, as the LIF cannot find a valid route to send or receive traffic. To resolve this issue, the route needs to be modified to reflect the correct gateway using the network route create or network route modify commands or the System Manager GUI12. References :- Create a route, Modify a route

 The number of ISCSI LIFs that will be created from the SVM setup wizard, as shown in the exhibit, is 16. This is because the LIFs per node field is set to 2, and there are 4 nodes in the cluster. Therefore, the total number of LIFs is 2 x 4 8 for each SVM, and since there are two SVMs, the total number of LIFs is 8 x 2 16. The other options are incorrect because they do not match the calculation based on the exhibit. References :- Configure an SVM for iSCSI, Configure iSCSI on an existing SVM