Which two channel group modes would place an interface in a negotiating state using PAgP? (Choose two.) on desirable active auto passive Answers Explanation & Hints: There are three modes…
Refer to the exhibit. An EtherChannel was configured between switches S1 and S2, but the interfaces do not form an EtherChannel. What is the problem? The interface port-channel number has…
When EtherChannel is configured, which mode will force an interface into a port channel without exchanging aggregation protocol packets? active auto on desirable Answers Explanation & Hints: For both LACP…
Which two parameters must match on the ports of two switches to create a PAgP EtherChannel between the switches? (Choose two.) MAC address speed VLAN information PAgP mode port ID…
What are two requirements to be able to configure an EtherChannel between two switches? (Choose two.) The interfaces that are involved need to be contiguous on the switch. All the…
Which statement is true regarding the use of PAgP to create EtherChannels? It requires full duplex. It is Cisco proprietary. It requires more physical links than LACP does. It increases…
Which port role is assigned to the switch port that has the lowest cost to reach the root bridge? root port non-designated port designated port disabled port Answers Explanation &…
Refer to the exhibit. Which switch will be the root bridge after the election process is complete? S1 S2 S3 S4 Answers Explanation & Hints: The root bridge is determined…
What is the value used to determine which port on a non-root bridge will become a root port in a STP network? the highest MAC address of all the ports…
In which two PVST+ port states are MAC addresses learned? (Choose two.) forwarding disabled learning listening blocking Answers Explanation & Hints: The two PVST+ port states during which MAC addresses…
Which protocol provides up to 16 instances of RSTP, combines many VLANs with the same physical and logical topology into a common RSTP instance, and provides support for PortFast, BPDU…
What is the purpose of the Spanning Tree Protocol (STP)? prevents Layer 2 loops prevents routing loops on a router creates smaller collision domains creates smaller broadcast domains allows Cisco…
Which spanning tree standard supports only one root bridge so that traffic from all VLANs flows over the same path? Rapid PVST 802.1D MST PVST+ Answers Explanation & Hints: MST…
What is the function of STP in a scalable network? It decreases the size of the failure domain to contain the impact of failures. It protects the edge of the…
A set of switches is being connected in a LAN topology. Which STP bridge priority value will make it least likely for the switch to be selected as the root?…
When the show spanning-tree vlan 33 command is issued on a switch, three ports are shown in the forwarding state. In which two port roles could these interfaces function while…
Match the spanning-tree feature with the protocol type. (Not all options are used.) Answers Explanation & Hints: MST is the Cisco implementation of MSTP (IEEE 802.1s). PVST+ (Per-VLAN Spanning Tree…
If no bridge priority is configured in PVST, which criteria is considered when electing the root bridge? lowest IP address lowest MAC address highest IP address highest MAC address Answers…
In which two port states does a switch learn MAC addresses and process BPDUs in a PVST network? (Choose two.) blocking disabled forwarding learning listening Answers Explanation & Hints: Switches…
Match the STP protocol with the correct description. (Not all options are used.) Explanation & Hint: Rapid PVST+ (Per-VLAN Spanning Tree Plus): Rapid PVST+ is an extension of the original…