Refer to the exhibit. Switch#show etherchannel summary

Answer:
A 
Question 31
Refer to the exhibit. 

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An engineer is asked to insert the new VLAN into the existing trunk without modifying anything 
previously configured Which command accomplishes this task? 
A. switchport trunk allowed vlan 100-104 
B. switchport trunk allowed vlan all 
C. switchport trunk allowed vlan add 104 
D. switchport trunk allowed vlan 104 
Answer:
C 
Question 32
Refer to the exhibit. 
What is a reason for poor performance on the network interface? 
A. The interface is receiving excessive broadcast traffic. 
B. The cable connection between the two devices is faulty. 
C. The interface is operating at a different speed than the connected device. 
D. The bandwidth setting of the interface is misconfigured 

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Answer:
B 
Explanation
A working interface (in an up/up state) can still suffer from issues related to the physical cabling 
as well. The cabling problems might not be bad enough to cause a complete failure, but the 
transmission failures result in some frames failing to pass successfully over the cable. For 
example, excessive interference on the cable can cause the various input error counters to keep 
growing larger, especially the CRC counter. In particular, if the CRC errors grow, but the 
collisions counters do not, the problem might simply be interference on the cable. (The switch 
counts each collided frame as one form of input error as well.) 
Reference: CCNA 200-301 Official Cert Guide, Volume 1 page 168 
In this question, only the input errors and CRC errors grow -> “The cable connected between 
two devices is faulty” is the best choice. 
Note: One problem, called late collisions, points to the classic duplex mismatch problem. But 
there is no late collision errors so duplex mismatch is not an in this question. 
Question 33
Refer to the exhibit. 
Routers R1 and R3 have the default configuration. The router R2 priority is set to 99. Which 
commands on R3 configure it as the DR in the 10.0.4.0/24 network? 
A. R3(config)#interface Gig0/1 
R3(config-if)#ip ospf priority 100 
B. R3(config)#interface Gig0/0 
R3(config-if)#ip ospf priority 100 
C. R3(config)#interface Gig0/0 
R3(config-if)#ip ospf priority 1 
D. R3(config)#interface Gig0/1 
R3(config-if)#ip ospf priority 0