NetApp Certified Support Engineer – ONTAP Specialist
You have proven skills in troubleshooting, analyzing, and remediating NetApp®
Data ONTAP Storage Systems.
NCSE ONTAP Specialist logos and certificates will be granted to those
individuals who successfully obtain the NetApp Certified Support Engineer (NCSE)
certification, then pass the NetApp Certified Support Engineer – ONTAP
Specialist (NS0-591) exam.
NS0-591
NetApp Certified Support Engineer—ONTAP Specialist
We recommend that NetApp Certified Support Engineer—ONTAP Specialist candidates
have six to 12 months of experience with troubleshooting, analysis, and
resolution of NetApp Data ONTAP Storage Systems.
Recommended Training and Resources:
ONTAP Troubleshooting (ILT)
Practice Test for NS0-591
View Exam Topics
Reference document (PDF)
Register for NS0-591
NS0-591
NetApp Certified Support Engineer – ONTAP Specialist
The NS0-591 exam includes 60 test questions, with an allotted time of 2 hours to
complete. In countries where English is not the native language, candidates for
whom English is not their first language will be granted a 30-minute extension
to the allotted examination completion time.
The NS0-591 exam includes the following topics:
Data ONTAP
Demonstrate knowledge of user space process troubleshooting
Describe WAFL recovery
Demonstrate knowledge of aggregate relocation (ARL) or volume moves
Demonstrate knowledge of quorum troubleshooting
Demonstrate knowledge of cluster or node recovery
Describe storage efficiency
Platform and Storage
Demonstrate knowledge of how to fix faulty storage components
Demonstrate knowledge of how to troubleshoot for SAS/FC-AL cabling issues
Describe how to decode FIFO strings
Demonstrate knowledge how to solve HA hardware issues
Networking and Protocols
Demonstrate knowledge of how to troubleshoot SAN connectivity
Demonstrate knowledge about advanced network troubleshooting
Describe NAS troubleshooting
Describe how to perform packet trace–based troubleshooting
Describe the differences in NFS versions
Describe different SMB features
Performance
Demonstrate knowledge of how to analyze performance issues
Identify WAFL structure
Question: 1
A customer mentions that their intercluster SnapMirror replication
operations consistently take
much longer than normal. While troubleshooting, you want to initiate a test
SnapMirror session to
collect performance data.
How would you accomplish this task?
A. Run the network test-path command to simulate a SnapMirror connection and
record the latency/throughput data.
B. View the active network connections to the node to see if there a large
number of active connections.
C. Use the ifstat command to collect network performance data for the physical
interface.
D. Run the network statistics lif show command for the intercluster LIF to
simulate a network connection.
Answer: A
Question: 2
The root aggregate on your single-node ONTAP cluster failed. You have the
configuration backups saved on your FTP server?
In this scenario, which two steps are part of the recovery procedure? (Choose
two.)
A. Perform a Netboot using the configuration backup.
B. Create a new aggregate and set its ha_policy option to sfo.
C. Boot into maintenance mode.
D. Create a new root aggregate and set its ha_policy option to cfo.
Answer: C,D
Question: 3
When does ONTAP overwrite a block that contains existing data?
A. after a user edits a file
B. after the block has been marked free
C. when file permissions are changed
D. when a file is copied in a LUN
Answer: D
Question: 4
Your customer has initiated several volume move commands to redistribute the
workload in their 8-
node cluster. To verify that this process is not affecting their client access,
they were monitoring the
network switches that provide client access, but they do not see the network
load of the volume move command.
In this scenario, what is the reason for the behavior?
A. The volume move command uses the HA iWarp interconnect, not the client access
switches.
B. The volume move command uses copy offload protocol, so it does not show up
when monitored.
C. The volume move command uses the intercluster LIFs, not the data LIFs.
D. The volume move command uses the cluster interconnect switches, not the
client access switches.
Answer: B
Question: 5
A customer reports that a takeover has been disabled on an HA pair.
What would be a cause for this to happen?
A. The HA interconnect is not functioning properly.
B. There is a disk running too hot.
C. The interface for the hardware assist has become unavailable.
D. The cluster network is not functioning properly.
Answer: A
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