01. After a bad application change corrupted files, an administrator must return a volume to a known-good state captured earlier, in place and quickly.
Which capability performs this revert most directly?
a) SnapRestore the volume from a Snapshot
b) Split a FlexClone from the source volume
c) Run a deduplication rescan on the volume
d) Resync the SnapMirror relationship for the volume
02. In a multiprotocol share, files are created by NFS users on UNIX hosts and later opened by Windows users over SMB.
What most governs whether a Windows user can open a file that a UNIX user created?
a) The aggregate type and its plex layout
b) The volume security style and the name-mapping rules
c) The volume Snapshot policy and its schedule
d) The network MTU and the data LIF settings
03. A NAS environment uses Kerberos and SMB signing for its client sessions.
What is the purpose of these mechanisms?
a) They balance client LIF connections across the cluster network
b) They compress files and reclaim space on NAS volumes
c) They authenticate users and protect protocol session integrity
d) They schedule Snapshot copies to guard against accidental deletion
04. Your security team asks how in-flight encryption such as IPsec or protocol-level encryption complements the at-rest encryption already enabled on the cluster.
What does in-flight encryption protect that at-rest encryption does not?
a) Data stored at the SnapMirror backup destination
b) Data retained in Snapshot copies on the volume
c) Data written to the physical disks in the aggregate
d) Data in transit across the network to clients
05. One NFS client receives permission-denied errors mounting a volume that other clients on the same SVM reach without trouble.
Which object should you check first?
a) The export policy and its rules matching that client
b) The QoS policy applied to the volume
c) The Snapshot schedule configured on the volume
d) The RAID group and disk layout of the aggregate
06. An administrator wants a storage-efficiency feature that finds identical blocks already stored in a volume and keeps only one physical copy of each.
Which feature does this?
a) Thin provisioning
b) Compression
c) Deduplication
d) Compaction
07. While planning IP address management for several data LIFs, an administrator wants ONTAP to hand out addresses consistently within one Layer 2 reachability boundary.
What does a subnet object in ONTAP networking provide?
a) It assigns IP addresses automatically from a pool within a broadcast domain.
b) It sets the default security style applied to volumes on the SVM.
c) It encrypts client traffic in transit across the broadcast domain.
d) It aggregates physical ports into one logical interface for added bandwidth.
08. You are hardening a newly deployed ONTAP cluster before it goes into production.
Which practice is core to reducing the cluster's attack surface?
a) Enable extra protocols so client services are not blocked
b) Share a single admin account across the whole operations team
c) Turn off auditing to reduce log volume and processing overhead
d) Apply least-privilege RBAC roles and disable weak or unused protocols
09. During maintenance, one node loses connectivity to its partners and drops out of cluster quorum.
What is the most direct consequence for that node?
a) Its LUNs are re-masked until quorum returns
b) Its cluster configuration changes are blocked until quorum returns
c) Its aggregates are reformatted until quorum returns
d) Its Snapshot copies are deleted until quorum returns
10. A team stores a large, unstructured dataset that keeps growing and must appear to clients as one directory tree while spreading load across several controllers.
Why would an administrator choose a FlexGroup instead of a single FlexVol for this workload?
a) To mirror a volume to a remote disaster site
b) To present a block LUN to SAN clients and hosts
c) To scale a single namespace over many nodes
d) To encrypt the volume's data at rest cluster-wide
Before you write the NetApp NCDA (NS0-165) certification exam, you may have certain doubts in your mind regarding the pattern of the test, the types of questions asked in it, the difficulty level of the questions and time required to complete the questions. These NetApp Certified Data Administrator - ONTAP (NCDA ONTAP) sample questions and demo exam help you in removing these doubts and prepare you to take the test.
