Pass the Netapp Certified Data Administrator (NCDA) NS0-162 Questions and answers with CertsForce

 NetApp’s All SAN Array (ASA) is a dedicated SAN-only solution that provides high performance and availability for mission-critical applications. ASA supports up to 2-node clusters, which can be either HA pairs or MetroCluster configurations. ASA does not support single node, 12-node, or 24-node clusters, as these are reserved for ONTAP systems that support both SAN and NAS protocols. References :- All-Flash SAN Array (ASA) A-Series Systems, All-Flash SAN Array software configuration overview, ASA system does not report as SAN optimized

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.

 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?

 NAS vol1 will shrink in size when the volume is 40% full. This is because the volume autosize mode is set to grow_shrink, which means that the volume will automatically grow or shrink based on the space usage and the specified thresholds. The shrink threshold is set to 60%, which means that the volume will start shrinking when the space usage falls below 60%. However, the volume will not shrink immediately, but will wait for a period of time (by default, 24 hours) to avoid frequent resizing. The volume will shrink to the minimum size that is required to accommodate the current data plus 10% free space, or the minimum size specified by the user, whichever is larger1. In this case, the minimum size is not specified, so the volume will shrink to the size that has 10% free space. Therefore, the volume will shrink when the space usage is 40%,as that is the point where the volume has 10% free space after shrinking. References :- Configure volumes to automatically grow and shrink their size

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

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