CCNA 3 v5 SN Chapter 3 Exam Answers 2014Scaling Networks1 Show
desirable auto active* passive 2
Place the options in the following order: This command shows information about the status of the port involved in the Etherchannel. – not scored – This command shows information about the reliability of the port-channel. This command is used to check what port channels are configured on a switch. This command shows the list of ports involved in the port channel and the time since the ports were bundled. decreases the chance of a spanning-tree loop provides a simulated environment for testing link aggregation allows automatic formation of EtherChannel links* decreases the amount of configuration that is needed on a switch for EtherChannel increases redundancy to Layer 3 devices 4 interface port-channel interface-identifier* interface interface-identifier interface range interface-identifier channel-group group-identifier 5 Launch PT
Hide and Save PT The wrong cable types are connecting the two switches. The channel group mode is not set correctly on the switches. The interface VLAN 1 is shut down on both switches. The channel group should be configured as a trunk on each switch.* The two interfaces on each of the switches belong to different VLANs.* 6 speed of the interfaces that are used for EtherChannel* port numbers that are used for the EtherChannel VLAN memberships of the interfaces that are used for EtherChannel* duplex settings of the interfaces that are used for EtherChannel* port security settings on the interfaces that used for EtherChannel domain names on the switches 7 Refer to the exhibit. Which switching technology would allow each access layer switch link to be aggregated to provide more bandwidth between each Layer 2 switch and the Layer 3 switch? trunking EtherChannel* HSRP PortFast 8 It requires more physical links than LACP does. It mandates that an even number of ports (2, 4, 6, etc.) be used for aggregation. It is Cisco proprietary.* It increases the number of ports that are participating in spanning tree. It requires full duplex. 9 switch 1 set to desirable; switch 2 set to desirable.* switch 1 set to on; switch 2 set to desirable. switch 1 set to auto; switch 2 set to auto. switch 1 set to auto; switch 2 set to on. 10 Shut down each of the affected interfaces.* Assign affected interfaces to VLAN 1. Assign affected interfaces to the management VLAN. Enable each of the affected interfaces. Assign affected interfaces to an unused VLAN. 11 STP 802.3ad* EtherChannel RSTP PAgP* 12 Refer to the exhibit. A network administrator has decided that an EtherChannel between ports 0/1 and 0/2 on switches S1 and S2 would help performance. After making the configuration, the administrator notices no performance gain. Based on the output that is shown, what two possible assumptions could a network administrator make? (Choose two.) The EtherChannel bundle is working. One of the ports on S2 was not configured correctly.* Switch S2 must be configured so that the maximum number of port channels is increased. LACP and PAgP were both used to form the EtherChannel. Switch S2 did not use a compatible EtherChannel mode. The EtherChannel bundle is not working.* 13 EtherChannel can connect up to a maximum of eight separate links. EtherChannel operates only at Layer 2. PAgP cannot be used in conjunction with EtherChannel. A trunked port can be part of an EtherChannel bundle.* 14 active desirable auto* passive 15 grouping multiple physical ports to increase bandwidth between two switches* grouping two devices to share a virtual IP address providing redundant devices to allow traffic to flow in the event of device failure providing redundant links that dynamically block or forward traffic 16 Refer to the exhibit. The administrator tried to create an EtherChannel between S1 and the other two switches via the commands that are shown, but was unsuccessful. What is the problem? Traffic cannot be sent to two different switches through the same EtherChannel link.* Traffic can only be sent to two different switches if EtherChannel is implemented on Gigabit Ethernet interfaces. Traffic can only be sent to two different switches if EtherChannel is implemented on Layer 3 switches. Traffic cannot be sent to two different switches, but only to two different devices like an EtherChannel-enabled server and a switch. 17 S1-on and S2-active S1-passive and S2-active* S1-passive and S2-passive S1-on and S2-passive 18 aggregate ports by using EtherChannel* insert a router between the switches increase uplink speed add more VLANs to reduce broadcast domains 19 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 to be different on each switch. The switch ports were not configured with speed and duplex mode. The EtherChannel was not configured with the same allowed range of VLANs on each interface.* The switch ports have to be configured as access ports with each port having a VLAN assigned. 20 destination IP to source IP destination MAC to destination IP source IP to destination IP* source MAC to destination MAC* destination IP to destination MAC destination MAC to source MAC Which mode will configure PAgP so that it initiates the EtherChannel negotiation?Desirable mode: Desirable mode in Port Aggregation Protocol (PAgP) initiates the negotiation and tries to form EtherChannel with other end. If you are using Port Aggregation Protocol (PAgP) for EtherChannel negotiation, EtherChannel will be formed only if two ends are configured under folowing modes.
Which three are PAgP interface modes?PAgP can be configured on a Cisco switch to operate in three different modes: auto - passive negotiation of the channel. desirable - active negotiation of the channel. on - no protocols are used: it assumes the other side has enabled link aggregation.
What will happen if a network administrator puts a port that is part of an EtherChannel?What will happen if a network administrator puts a port that is part of an EtherChannel bundle into a different VLAN than the other ports in that bundle? The EtherChannel will fail.
Which LACP mode combination will result in an EtherChannel being established?The correct answer is "LACP groups physical links into an EtherChannel only if it determines that they have the same speed, duplex mode, native VLAN, VLAN range, trunking status, and trunk type." LACP will only group interfaces with the same characteristics.
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