NS0-181 Sample Questions

NS0-181 Sample Questions & Answers

Expect questions on adding or removing cluster nodes, cluster peering and security hardening, cabling a switched cluster, configuring system networking, updating ONTAP and creating aggregates, physical node cabling, and the customer handoff.

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Showing 10 of 20 free samples.

  1. Question 1Beginner

    ONTAP Networking · Configuring ONTAP System Networking

    True or False: A single Broadcast Domain in ONTAP can contain physical ports from multiple nodes in the cluster.

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    Correct answer: A

    This is true. A Broadcast Domain is a collection of network ports that belong to the same layer 2 network. To allow for LIF migration across a cluster, a broadcast domain must contain ports from all nodes where a LIF might fail over to. This is a fundamental concept for enabling data LIF mobility.

  2. Question 2Beginner

    ONTAP Switches · Software Needed for Cluster Switch Configuration

    An engineer is using a supported Cisco Nexus switch for a new cluster interconnect. To ensure the switch is configured according to NetApp's best practices and support requirements, what must be applied to the switch configuration?

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    Correct answer: B

    NetApp provides specific Reference Configuration Files (RCFs) for each supported cluster interconnect switch model. Applying the correct RCF ensures that all necessary settings, such as VLANs, MTU, flow control, and port channeling, are configured correctly for stable cluster operation. Manual configuration is not recommended or supported.

  3. Question 3Intermediate

    ONTAP Switches · Cabling of a Switched Cluster

    You are physically cabling two NetApp CN1610 cluster interconnect switches for redundancy in a 4-node cluster. What is the term for the connection that must be established between the two switches themselves to allow for failover and communication?

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    Correct answer: B

    The Inter-Switch Link (ISL) is the dedicated, high-speed connection between the two redundant cluster interconnect switches. This link is critical for maintaining a single, logical cluster network fabric and allowing communication to continue if one of the switches fails. The RCF file configures the specific ports to be used for the ISL.

  4. Question 4Intermediate

    ONTAP Configuration · Add or Remove Nodes in an ONTAP Cluster

    An administrator is attempting to remove a node from an 8-node cluster. The cluster unjoin command fails with an error message stating that data aggregates are still owned by the node. Before the node can be successfully unjoined, what critical procedure must be performed?

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    Correct answer: C

    A node cannot be removed from a cluster if it still owns data aggregates. The storage aggregate relocation command set must be used to non-disruptively move ownership of the aggregates (and the data within them) to other nodes in the cluster. Once the node no longer owns any data aggregates, the cluster unjoin process can proceed.

  5. Question 5Intermediate

    ONTAP Configuration · Set Up Cluster Peering

    A financial institution requires that all remote data replication traffic between their primary and disaster recovery sites be encrypted in-flight. When establishing a cluster peer relationship to facilitate SnapMirror replication, what action must be taken to meet this security requirement?

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    Correct answer: A

    When creating a cluster peer relationship, the cluster peer create command has an option to generate and exchange authentication keys using a shared passphrase. This process enables Transport Layer Security (TLS) for the intercluster communication, encrypting all replication traffic that uses the peering connection.

  6. Question 6Beginner

    Customer Handoff · Tools Available to Review an Installation

    As part of the final installation review, an engineer needs to generate a comprehensive report that validates the cluster's configuration against hundreds of NetApp's documented best practices. The report should highlight any deviations, such as suboptimal RAID group sizes, incorrect port settings, or outdated firmware. Which tool is specifically designed for this purpose?

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    Correct answer: C

    Active IQ Config Advisor is a standalone tool used by engineers to perform health checks and validate configurations against NetApp's best practices. It can be run before, during, and after an installation. A final Config Advisor report is a key deliverable during customer handoff to prove the system was installed correctly.

  7. Question 7IntermediateSelect 3

    Customer Handoff · Create Documentation

    When preparing the as-built documentation for a customer handoff, which three items are essential to include for future reference and support? (Select THREE)

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    Correct answers: A, C, D

    A comprehensive network diagram is crucial for troubleshooting connectivity issues and planning future network changes.

    Documenting all applied licenses is essential for support entitlement, feature verification, and future license management.

    This report serves as proof that the installation was completed according to NetApp's best practices, which is a critical handoff artifact.

  8. Question 8Advanced

    ONTAP Switches · Cabling of a Switched Cluster

    Case Study: Global Solutions Inc.

    Global Solutions Inc. is a multinational corporation that requires a new, highly resilient storage infrastructure. They have purchased a 4-node AFF A400 cluster to be installed in their primary data center. The solution must provide continuous availability for their critical applications.

    Current Situation:
    The data center has two separate network fabrics, Fabric A and Fabric B, for full redundancy. Each fabric is managed by a dedicated Cisco Nexus 9000 switch. The installation engineer has been instructed to cable the cluster in a way that ensures no single switch failure can cause a data outage. The cluster will have both management and data LIFs.

    Requirements:

    1. Each node's cluster interconnect ports must be connected in a redundant manner.
    2. Each node must have a data connection to both Fabric A and Fabric B.
    3. The cluster interconnect switches must be linked to form a single, resilient fabric.
    4. The final configuration must be fully supported by NetApp.

    Problem:
    Given the requirements, how should the engineer cable the cluster interconnect ports and configure the switches to achieve maximum resilience and meet NetApp support standards?

    graph TD subgraph Data Center subgraph Fabric A SwitchA[Nexus 9000 - A] end subgraph Fabric B SwitchB[Nexus 9000 - B] end subgraph Cluster Node1[AFF A400 - Node1] Node2[AFF A400 - Node2] Node3[AFF A400 - Node3] Node4[AFF A400 - Node4] end end

    Show answer & explanation

    Correct answer: C

    This is the correct, fully redundant, and supported configuration. Connecting each node to both switches ensures that a failure of either switch will not isolate a node. The Inter-Switch Link (ISL) is mandatory for creating a single, logical cluster network between the two physical switches. Applying the NetApp RCF ensures the switches are configured with all required settings for stable operation.

  9. Question 9Beginner

    ONTAP Configuration · Support Resources Required for Troubleshooting ONTAP Installations

    During the cluster setup wizard for a new installation, the engineer is prompted to configure AutoSupport. Which protocol should be used for AutoSupport transport to ensure messages are sent securely?

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    Correct answer: D

    HTTPS (HTTP over TLS) is the recommended and secure method for transporting AutoSupport messages to NetApp. It encrypts the payload, protecting sensitive configuration and system information while in transit. While SMTP and HTTP are legacy options, HTTPS is the modern standard for security.

  10. Question 10Intermediate

    ONTAP Concepts · Installation or Expansion of ONTAP Cluster

    An engineer needs to add a new FAS9000 node pair to an existing 4-node AFF A800 cluster. What is a primary consideration that must be validated before attempting to join the new nodes?

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    Correct answer: B

    The ONTAP version is the check that decides whether a join can go ahead. NetApp's cluster add-node reference says the best practice is to add nodes that run the same ONTAP version as the nodes already in the cluster. If the version differs, the standard join stops with the error that the node is not running the same software version as the nodes in the cluster; a newer, compatible node can join only with cluster add-node -allow-mixed-version-join (and the rest of the cluster must then be upgraded), and a node older than the lowest version in the cluster cannot join at all. So before the join, either bring the new FAS9000 nodes to the cluster's version or upgrade the cluster to theirs. The other items are not join prerequisites: the add-node prerequisites list no volume-count or RAID-type check, and cluster switches must be NetApp-validated models (for example Cisco, Broadcom or NVIDIA), not switches from the same vendor as the nodes. (ONTAP 9.12.1 command reference: cluster add-node; ONTAP 9 docs: Add nodes to an ONTAP cluster; NetApp KB: Cluster join fails - nodes are on a different version of ONTAP; Switch documentation for ONTAP systems.)

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