Refer to the exhibit. Switch#show etherchannel summary

Answer:
C 
Explanation
802.11r, which is the IEEE standard for fast roaming, introduces a new concept of roaming 
where the initial handshake with the new AP is done even before the client roams to the target 
AP, which is called Fast Transition (FT). The initial handshake allows the client and APs to do 
the Pairwise Transient Key (PTK) calculation in advance. These PTK keys are applied to the 
client and AP after the client does the reassociation request or response exchange with new target 
AP. 

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FT works with both preshared key (PSK) and 802.1X authentication methods. If you check the 
FT PSK check box, from the PSK Format drop-down list, choose ASCII or Hex and enter the 
key value -> This question does not mention about “enter the key value” so maybe answer C is 
the best choice. 
Reference: 
https://www.cisco.com/c/dam/en/us/td/docs/wireless/controller/technotes/80211r-
ft/b-80211r-dg.html
 
Question 42
Refer to the exhibit. 
An engineer is configuring an EtherChannel using LACP between Switches 1 and 2. Which 
configuration must be applied so that only Switch 1 sends LACP initiation packets? 
A. Switch1(config-if)#channel-group 1 mode on 
Switch2(config-if)#channel-group 1 mode passive 
B. Switch1(config-if)#channel-group 1 mode passive 
Switch2(config-if)#channel-group 1 mode active 
C. Switch1(config-if)#channel-group 1 mode active 
Switch2(config-if)#channel-group 1 mode passive 
D. Switch1(config-if)#channel-group 1 mode on 
Switch2(config-if)#channel-group 1 mode active 
Answer:
C 
Question 43
Refer to the exhibit. 

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SW1 = 24596 0018.184e.3c00 
SW2 = 28692 004a.14e5.4077 
SW3 = 32788 0022.55cf.dd00 
SW4 = 64000 0041.454d.407f 
Which switch becomes the root of a spanning tree for VLAN 20 if all links are of equal speed? 
A. SW1 
B. SW2 
C. SW3 
D. SW4