Test
CCNA – STP
Este test tiene tiempo límite, así que se abre en el reproductor de siempre.
Preguntas del test (13)
1Refer to the topology shown in the exhibit. Which ports will be STP designated ports if all the links are operating at the same bandwidth? (Choose three)
- AA. Switch A – Fa0/0
- BB. Switch A – Fa0/1
- CC. Switch B – Fa0/0
- DD. Switch B – Fa0/1
- EE. Switch C – Fa0/0
- FF. Switch C – Fa0/1
- AA. Switch A – Fa0/0
2What value is primarily used to determine which port becomes the root port on each non-root switch in a spanning-tree topology?
- AA. lowest port MAC address
- BB. port priority number and MAC address.
- CC. VTP revision number
- DD. highest port priority number.
- EE. path cost
- AA. lowest port MAC address
3What is one benefit of PVST+?
- AA. PVST+ reduces the CPU cycles for all the switches in the network.
- BB. PVST+ automatically selects the root bridge location, to provide optimization.
- CC. PVST+ allows the root switch location to be optimized per vlan.
- DD. PVST+ supports Layer 3 load balancing without loops.
- AA. PVST+ reduces the CPU cycles for all the switches in the network.
4Which two protocols are used by bridges and/or switches to prevent loops in a layer 2 network? (Choose two)
- AA. 802.1d
- BB. VTP
- CC. 802.1q
- DD. STP
- EE. SAP
- AA. 802.1d
5In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN?
- AA. after broken links are re-established
- BB. in an improperly implemented redundant topology
- CC. when upper-layer protocols require high reliability
- DD. during high traffic periods
- EE. when a dual ring topology is in use
- AA. after broken links are re-established
6A problem with network connectivity has been observed. It is suspected that the cable connected to switch port Fa0/9 on Switch1 is disconnected. What would be an effect of this cable being disconnected?
- AA. Host B would not be able to access the server in VLAN9 until the cable is reconnected.
- BB. Communication between VLAN3 and the other VLANs would be disabled.
- CC. The transfer of files from Host B to the server in VLAN9 would be significantly slower.
- DD. For less than a minute, Host B would not be able to access the server in VLAN9. Then normal network function would resume.
- AA. Host B would not be able to access the server in VLAN9 until the cable is reconnected.
7Which port state is introduced by Rapid-PVST?
- AA. learning
- BB. listening
- CC. discarding
- DD. forwarding
- AA. learning
8Refer to the exhibit. Based on the information given, which switch will be elected root bridge and why?
- AA. Switch A, because it has the lowest MAC address
- BB. Switch A, because it is the most centrally located switch
- CC. Switch B, because it has the highest MAC address
- DD. Switch C, because it is the most centrally located switch
- EE. Switch C, because it has the lowest priority
- FF. Switch D, because it has the highest priority
- AA. Switch A, because it has the lowest MAC address
9Which term describes a spanning-tree network that has all switch ports in either the blocking or forwarding state?
- AA. redundant
- BB. spanned
- CC. provisioned
- DD. converged
- AA. redundant
10Refer to the exhibit. Given the output shown from this Cisco Catalyst 2950, what is the most likely reason that interface FastEthernet 0/10 is not the root port for VLAN 2?
- AA. This switch has more than one interface connected to the root network segment in VLAN 2.
- BB. This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree.
- CC. This switch interface has a higher path cost to the root bridge than another in the topology.
- DD. This switch has a lower bridge ID for VLAN 2 than the elected designated switch.
- AA. This switch has more than one interface connected to the root network segment in VLAN 2.
11Three switches are connected to one another via trunk ports. Assuming the default switch configuration, which switch is elected as the root bridge for the spanning-tree instance of VLAN 1?
- AA. the switch with the highest MAC address
- BB. the switch with the lowest MAC address
- CC. the switch with the highest IP address
- DD. the switch with the lowest IP address
- AA. the switch with the highest MAC address
12Which option contains both the potential networking problem and the protocol or setting that should be used to prevent the problem?
- AA. routing loops, hold down timers
- BB. Switching loops, split horizon
- CC. routing loops, split horizon
- DD. Switching loops, VTP
- EE. routing loops, STP
- FF. Switching loops, STP
- AA. routing loops, hold down timers
13Refer to the exhibit. Which switch provides the spanning-tree designated port role for the network segment that services the printers?
- AA. Switch1
- BB. Switch2
- CC. Switch3
- DD. Switch4
- AA. Switch1
Información
- Descripción
- Test sobre CCNA – STP, creado por Sammy Javier Bar el 22/05/2015.
- Autor
- Sammy Javier Bar
- Idioma
- English
- Visitas
- 1
- Valoración
- Aún sin valoraciones Valora este test