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640-802 CCNA Study Guide - Elktech.org

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Explanation:<br />

Cisco <strong>640</strong>-<strong>802</strong> Exam<br />

QUESTION NO: 453<br />

Which command enables RSTP on a switch?<br />

A. spanning tree backbonefast<br />

B. spanning-tree mode rapid-pvst<br />

C. spanning-tree mode mst<br />

D. spanning-tree uplinkfast<br />

Answer: B<br />

Explanation:<br />

QUESTION NO: 454<br />

Refer to the exhibit.<br />

What is the most efficient summarization that R1 can use to advertise its networks to R2?<br />

A. 172.1.4.0/25<br />

172.1.4.128/25<br />

172.1.5.0/24<br />

172.1.6.0/24<br />

172.1.7.0/24<br />

B. 172.1.0.0/22<br />

"Pass Any Exam. Any Time." - www.actualtests.com 330

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