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QUESTION NO: 1
Refer to the exhibit. What can be determined from the output shown?

A. Spanning Tree Protocol is disabled on the JaxSwitch1 switch.
B. The link to the root bridge is through a 1 Gbps connection.
C. This is the only switch in the LAN topology.
D. The JaxSwitch1 switch is using VTP.
E. The JaxSwitch1 switch is not the root switch.
Answer: E

Explanation:
The spanning-tree algorithm characterizes STP. The spanning-tree Algorithm relies on a set of parameters to make decisions. The Bridge ID (BID) is the first parameter used by the spanning-tree algorithm. The Bridge ID (BID) is used by STP to determine the center of the bridged network, known as the Root Bridge . The Bridge ID (BID) parameter is an 8-byte field consisting of an ordered pair of numbers. The first is a 2-byte decimal number called the Bridge Priority, and the second is a 6-byte (hexadecimal) MAC address. The Bridge Priority is a decimal number used to measure the preference of a bridge in the spanning-tree Algorithm. The possible values range between 0 and 65,535. The default setting is32,768.

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71.
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QUESTION 73
What is the purpose of the OSPF router ID in a DR/BDR election?
A. It is used with the OSPF priority values to determine which OSPF router will become the DR or BDR in a point-to-point network.
B. It is used with the OSPF priority values to determine which interface will be used to form a neighbor relationship with another OSPF router.
C. It is used with the OSPF priority values to determine which router will become the DR or BDR in a multiaccessnetwork.

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