200-120 무료 덤프문제 온라인 액세스

Refer to the exhibit.

An administrator pings the default gateway at 10.10.10.1 and sees the output as shown. At which OSI layer is the problem?

• A.network layer
• B.application layer
• C.access layer
• D.data link layer
• E.session layer

In a switched environment, what does the IEEE 802.1Q standard describe?

• A.a method of VLAN trunking
• B.the operation of VTP
• C.an approach to wireless LAN communication
• D.the process for root bridge selection
• E.VLAN pruning

What is the default administrative distance of OSPF?

• A.90
• B.110
• C.120
• D.100

In a GLBP network, who is responsible for the ARP request?

• A.Standby Router
• B.AVF
• C.AVG
• D.Active Router

DRAG DROP
Drag each category on the left to its corresponding router output line on the right. Each router output line is the result of a show ip interface command. Not all categories are used.

정답:

Explanation:
A simple way to find out which layer is having problem is to remember this rule: "the first statement is for Layer 1, the last statement is for Layer 2 and if Layer 1 is down then surely Layer 2 will be down too", so you have to check Layer 1 before checking Layer 2. For example, from the output "Serial0/1 is up, line protocol is down" we know that it is a layer 2 problem because the first statement (Serial0/1 is up) is good while the last statement (line protocol is down) is bad. For the statement "Serial0/1 is down, line protocol is down", both layers are down so the problem belongs to Layer 1. There is only one special case with the statement ".... is administrator down, line protocol is down". In this case, we know that the port is currently disabled and shut down by the administrators.