Practice Test Geeks(ACA) Aruba Certified Associate Certification Practice Test
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Aruba Associate Switching & VLANs Flashcards

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  1. What is Spanning Tree Protocol (STP) designed to prevent in a switched network?

    Answer: Layer 2 loops

    STP prevents Layer 2 loops in switched networks by blocking redundant paths and allowing only one active path between switches.

  2. Which STP port state actively forwards traffic in a classic 802.1D implementation?

    Answer: Forwarding

    The Forwarding state is the only STP port state where a port actively forwards user traffic on the network.

  3. What is MSTP and what problem does it solve over classic STP?

    Answer: Multiple Spanning Tree Protocol; maps multiple VLANs to fewer STP instances for efficiency

    MSTP maps multiple VLANs to a smaller number of spanning tree instances, reducing CPU overhead compared to running one STP instance per VLAN.

  4. What is the function of a link aggregation group (LAG) on Aruba switches?

    Answer: To bundle multiple physical links into one logical link for increased bandwidth and redundancy

    A LAG bundles multiple physical Ethernet links into a single logical link to increase bandwidth and provide link-level redundancy.

  5. Which protocol dynamically negotiates link aggregation between Aruba switches?

    Answer: LACP

    LACP (Link Aggregation Control Protocol) is the IEEE 802.3ad standard that dynamically negotiates and manages link aggregation groups.

  6. What is VLAN pruning on a trunk link?

    Answer: Limiting which VLANs are allowed to traverse a trunk to reduce unnecessary traffic

    VLAN pruning restricts which VLANs are allowed on a trunk link, preventing broadcast traffic from flooding into segments that do not need it.