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?
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…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
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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.
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+1 for Marek, router subinterfaces need to be in a different subnet otherwise it doesn’t accept the overlaps configuration.
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exactly, also we do not configure nothing regards the trunk on ROUTER, just switch is configured with switchport mode trunk.
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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.
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