Refer to the exhibit.
What information about the interfaces on the Main_Campus router is true?
A.
The LAN interfaces are configured on different subnets.
B.
Interface FastEthernet 0/0 is configured as a trunk.
C.
The Layer 2 protocol of interface Serial 0/1 is NOT operational.
D.
The router is a modular router with five FastEthernet interfaces.
E.
Interface FastEthernet 0/0 is administratively deactivated.
Explanation:
Interface fa0/0 breaks into sub interface and Main_Campus router is connected with
switch via fa0/0 .Subinterfaces configured with different subnet mask so its seem switch has
multiple vlans and allow communication between vlan , router and inter-vlan we need to make a
trunk port.So B will be the correct answer.
Is ‘A’ not also correct?
…doesn’t say “choose two” : so THIS question is NOT about “tech”
this question is about checking if YOU READ INSTRUCTIONS….its testing the PERSON not their knowledge.
B is MORE true (what ever that means) then A is….as WE DON’T KNOW for certain that those four IP are in DIFFERENT subnets.
obviously we would ASSUME they are….BUT NOTE: the switch might have ONE big /20 network running on it…and all those IP might be in ONE subnet….no way to be SURE the admin used /24 sub-netting…..so B. is the ONLY answer that is 100% proved.
dig?
– M
The answer is A.
Assigning IP addresses to sub-interfaces requires separate vlan for each and one of them.
Every vlan needs to be in a different network.
+1 for Marek, router subinterfaces need to be in a different subnet otherwise it doesn’t accept the overlaps configuration.
exactly, also we do not configure nothing regards the trunk on ROUTER, just switch is configured with switchport mode trunk.
There is only 1 LAN interface and 4 subinterfaces of the same LAN interface. That would make answer A wrong. Also, the only way to access the networks assigned to the subinterfaces is if interface Fa0/0 was configured as a trunk.