Free NetApp NS0-159 Exam Practice Questions & Explanations
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An administrator wants clients to traverse from the SVM namespace root into several data volumes using a single NFS mount point. The administrator plans to junction each data volume beneath the SVM root volume.
Statement: In an ONTAP SVM, FlexVol volumes are made accessible in the NAS namespace by mounting them at junction paths beneath the SVM root volume, allowing clients to access multiple volumes through one mount of the namespace root.
True. Each data SVM has a single NAS namespace whose root is the SVM root volume. FlexVol volumes are attached to that namespace at junction paths (for example /eng/data). A client that mounts the namespace root can then traverse the junctions to reach all mounted volumes, regardless of which node or aggregate physically hosts each volume. This is why the SVM root volume should be protected with load-sharing mirrors or careful backup practices, since losing it disrupts namespace traversal.
Windows users report that they can see an SMB share but receive "Access is denied" when opening files inside it. The administrator verifies that the SMB server is online, the share is visible, and the users are members of the correct AD group.
Which action should the administrator take next to troubleshoot the issue?
Being able to connect to and browse a share but not open files is a classic permissions problem. In ONTAP, effective access is the intersection of the share-level ACL and the file-level (NTFS) permissions, so the most restrictive of the two wins. Tools such as vserver security file-directory show and vserver export-policy / vserver cifs share access-control show help identify the mismatch.
Recreating the machine account addresses authentication failures, not authorization failures. Moving the LIF only changes the network path. Changing security style to UNIX would discard the NTFS ACLs and could break access further, and is not a troubleshooting step.
A storage administrator creates a new data SVM named svm_nas and immediately tries to create an NFS export and mount it from a Linux host. The mount fails. The administrator confirms the volume exists and is junctioned at /vol_data.
Which two conditions must also be true for the mount to succeed? (Choose two.)
A data SVM is a secure, virtualized storage server. Before NAS clients can access it, the protocol service must be created and enabled (vserver nfs create / status online), and the SVM must own at least one data LIF with the appropriate data protocol service so clients have a network path. Export policies and rules must also permit the client.
Aggregates are cluster-owned resources that can be shared by many SVMs, so C is incorrect. Active Directory is only required for SMB or NFS Kerberos/name mapping scenarios, not basic NFSv3 exports. The cluster management LIF is for administration only and never serves client data.
A customer has a 2-node ONTAP cluster and wants to add two more nodes of a different AFF model. They also want to add an ONTAP Select cluster at a remote office and replicate data to it with SnapMirror.
Which statement about supported configurations is correct?
ONTAP supports mixed-model clusters, provided nodes are deployed as valid HA pairs, the platform combination is listed in the Hardware Universe, and the nodes run compatible ONTAP versions. SnapMirror replicates between clusters running ONTAP, including ONTAP Select and Cloud Volumes ONTAP, so a remote ONTAP Select cluster is a valid destination.
A is wrong because identical models are not required across HA pairs. C is wrong because ONTAP Select fully supports SnapMirror. D is wrong because ONTAP Select nodes are never joined to a hardware cluster; SnapMirror is an inter-cluster relationship.
An administrator is designing a new 4-node ONTAP cluster on AFF systems. Each node will host multiple data SVMs serving NFS and SMB clients. The administrator must ensure that a client can continue accessing its data through a LIF on a surviving node if the node hosting the LIF fails.
Which two ONTAP components make this possible? (Choose two.)
NAS data LIFs are not tied to the physical location of the volume. A failover group (a set of ports across nodes) combined with a failover policy determines where the LIF can migrate when a port or node fails. Once the LIF is hosted on a different node than the volume, the cluster interconnect (private cluster network) forwards the traffic to the node that owns the aggregate/volume, so the client sees continuous access.
The node management LIF is scoped to a node for administration and does not migrate with data LIFs. The Service Processor provides out-of-band management (console, power control) and has no role in client session redirection.