Refer to the exhibit. Switch#show etherchannel summary

Answer:
C 
Explanation
First we check to see if 10.56.192.1 falls into 10.56.128.0/18 or 10.56.0.0/17 subnets: 
10.56.128.0/18 (Increment: 64) 
Network address: 10.56.128.0 
Broadcast address: 10.56.191.255 
10.56.0.0/17 (Increment: 128) 
Network address: 10.56.0.0 
Broadcast address: 10.56.127.255 
As we can see 10.56.192.1 does not belong to above subnets or any other subnets in R1 routing 
table so R1 will use the default route to forward the packets. 
Question 105
What is a function of MAC learning on a switch? 
A. A static MAC address is manually added to the MAC table. 
B. MAC address learning is disabled by default on all VLANs. 
C. Frames received for a destination MAC address not listed in the address table are dropped. 
D. The MAC address table is used to populate the ARP table. 
Answer:
A 

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Explanation
MAC address learning is enabled by default on all VLANs -> Answer B is not correct. 
If a destination MAC address is unknown then the switch will broadcast the frame out all ports 
except the port where the frame is received -> Answer C is not correct. 
The ARP table is built from the replies to the ARP requests, recorded before a packet is sent on 
the network ->Answer D is not correct. 
We can use the “mac address-table static 001d.a18b.36d0 vlan 5 interface fastEthernet 0/2” for 
example to manually add a MAC address into the MAC table. 
Question 106
What is the difference between 1000BASE-LX/LH and 1000BASE-ZX interfaces? 
A. 1000BASE-LX/LH interoperates with multimode and single-mode fiber, and 1000BASE-ZX 
needs a conditioning patch cable with a multimode. 
B. 1000BASE-ZX is supported on links up to 1000km, and 1000BASE-LX/LH operates over 
links up to 70 km. 
C. 1000BASE-ZX interoperates with dual-rate 100M/1G 10Km SFP over multimode fiber, and 
1000BASE-LX/LH supports only single-rate. 
D. 1000BASE-LX/LH is supported on links up to 10km, and 1000BASE-ZX operates over links 
up to 70 km.