Practice Test Geeks(ICND1) Interconnecting Cisco Networking Devices Part 1 Practice Test
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LAN Switching Technologies Flashcards

7 cards from real ICND1 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which STP port state forwards frames and learns MAC addresses?

    Answer: Forwarding

    Only the Forwarding state both learns MAC addresses and forwards data frames.

  2. What is the default bridge priority value used in Spanning Tree Protocol?

    Answer: 32768

    The default STP bridge priority is 32768 on all Cisco switches unless manually changed.

  3. Which VLAN trunking protocol mode will only forward VLANs that are created locally on the switch?

    Answer: VTP Transparent

    VTP Transparent mode does not participate in VTP domain synchronization and only uses locally configured VLANs.

  4. What command correctly assigns an access port to VLAN 20 on a Cisco switch?

    Answer: switchport access vlan 20

    The command 'switchport access vlan 20' assigns the interface to VLAN 20 as an access port.

  5. Which field in an 802.1Q frame carries the VLAN identifier?

    Answer: VLAN ID (VID) within the 4-byte tag

    The 12-bit VID field inside the 4-byte 802.1Q tag identifies the VLAN the frame belongs to.

  6. A switch receives a frame destined for a MAC address not in its CAM table. What does it do?

    Answer: Floods the frame out all ports except the receiving port

    When a destination MAC is unknown, the switch floods the frame out every port in the VLAN except the ingress port.

  7. Which STP variant is defined by IEEE 802.1w and provides faster convergence than classic STP?

    Answer: RSTP

    IEEE 802.1w defines Rapid Spanning Tree Protocol (RSTP), which dramatically reduces convergence time.