Spanning Tree Protocol Data Communication Quiz by Ravinder Nath Rajotiya - November 13, 2019November 13, 20190 Share on Facebook Share Send email Mail Print Print Table of Contents Toggle Spanning Tree ProtocolSTP Quiz Spanning Tree Protocol As a enterprise networks expands it require more number of switches. Switches are a point-to-point interconnections via end systems are able to forward frames to destinations located via other switches within the broadcast domain. The failure of one switch or its link results in the immediate isolation of the downstream connectivity. In order to resolve this issue, redundancy is highly recommended within any switching network. Redundant links are therefore generally used on an Ethernet switching network to provide link backup and enhance network reliability. The use of redundant links, however, may produce loops that cause the communication quality to drastically deteriorate, and major interruptions to the communication service to occur. One of the initial effects of redundant switching loops comes in the form of broadcast storms. That is a switch that receives a broadcast frame transmits through all its interface thus forming a storm. STP Quiz Welcome to your STP Quiz 1. In which of the following state can an STP- enabled port transition of the forwarding state directly Blocking Disable Listening Learning None 2. Which of the following statements is true about an STP-enable port in forwarding state? The port forward user traffic and processes BPDUs The port only receive and processes BPDUs and does not forward user traffic The port does not process BPDUs or forward user traffic The port creates MAC address entries based on the received user traffic but does not forward user traffic None 3. Which is the default value of switch priority when STP is enabled on Huawei switch 4096 8192 16384 32768 None 4. Which of the following statement is true about root bridge election of STP? If the bridge priorities of device are the same, the device with the largest MAC address becomes the root bridge The device with the largest bridge priority becomes the root bridge The device with the smallest bridge priority becomes the root bridge If the bridge priority are the same, the device with the largest number of ports becomes the root bridge None 5. What is the total length of the port ID in STP 2 bits 4 bits 8 bits 16 bits None 6. By default, it takes at least 30 seconds for an STP-enabled port to transition from disabled to forwarding? TRUE FALSE None 7. When redundant links exist on a switching network, STP can be used to eliminate loops. TRUE FALSE None 8. What is the destination MAC address of STP BPDUs? 00-80-C2-00-00-00 D 01-80-C2-00-00-00 FF-FF-FF-FF-FF-FF 01-80-C2-04-05-06 None 9. Which of the following statements is true about the forward Delay timer of STP? Improves the STP convergence speed Reduces the interval for sending BPDUs Prevent temporary loops Delay is required when a port transitions between Blocking and Disabled None 10. For STP, the massage Age in the configuration BPDUs sent by the root bridge is 0? TRUE FALSE None 11. For STP the default root path cost of the root bridge is 0? TRUE FALSE None 12. For an STP- enabled switch, a port in any state can transition to the disabled state TRUE FALSE None 13. As shown in Figure, Which of the following port will become the designated port? G0/0/3 of SWB G0/0/1 of SWC G0/0/2 of SWC G0/0/3 of SWA None 14. Which of the following statements are true about STP BPDUs STP has two types of packets: configuration BPDU and TCN BPDU After STP is enable on a port, the switch periodically sends TCN BPDUs through the designated port BPDUs are encapsulated in Ethernet frames and the destination MAC address is a multicast MAC address During initialization, each switch enabled with STP proactively sends configuration BPDUs. None 15. Which of the following parameters is used to elect Root Bridge in STP? Bridge ID Port ID Root Path Cost System Name of the Switch None 16. Which of the following description regarding the STP forwarding state is incorrect? A port in a forwarding state can receive BPDU A port in a forwarding state does not learn the source MAC address of a frame A port in a forwarding state can forward frames A port in a forwarding state can send BPDU None 17. When a switch running standard STP receives an inferior configuration BPDU through a port, it immediately sends its own configuration BPDU through the port? TRUE FALSE None 18. In STP , when a designated port receives an inferior configuration BPDU, the designated port immediately sends its own configuration, BPDU to the downstream device? TRUE FALSE None 19. On an STP- enabled switch, TCN BPDUs are sent only when a port on the local switch is faulty? TRUE FALSE None 20. If a device running STP receives an RSTP configuration BPDU, it discards the BPDU TRUE FALSE None 21. On an STP-Enabled Switch, a port in learning state can transition to the forwarding state only after the forward delay TRUE FALSE None Please fill in the comment box below. Time's up Share on Facebook Share Send email Mail Print Print