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640-878 Latest Exam BrainDumps

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Test4Direct provides latest PDF questions of Cisco 640-878 exam. You have an opportunity to pass the Cisco 640-878 exam in one go. Test4Direct is most accurate source to prepare Cisco 640-878 exam as your success will become site’s responsibility after purchasing 640-878 exam product. There are also lots of discounts and promotion offers that you can avail. Let’s try a free demo http://www.test4direct.com/640-878.html

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Question: 1<br />

Which spanning-tree mode can be used to map several VLANs to a single spanning-tree instance?<br />

A. MST<br />

B. PVST+<br />

C. PVRST+<br />

D. RSTP<br />

Question: 2<br />

Which spanning-tree mode uses the name command to configure a region name?<br />

A. MST<br />

B. PVST+<br />

C. PVRST+<br />

D. RSTP<br />

Question: 3<br />

Question: 4<br />

Answer: A<br />

Answer: A<br />

Which procedure is used as the last resort disaster recovery procedure to completely replace the<br />

currently installed IOS XR software on Cisco IOS XR routers?<br />

A. netboot<br />

B. turboboot<br />

C. install recovery<br />

D. install rollback<br />

E. install add and install activate<br />

Answer: B<br />

Explanation:<br />

http://www.cisco.com/en/US/docs/routers/crs/software/crs_r4.0/migration/guide/tbupgapp.pdf<br />

Which file extension indicates a bootable installation file in Cisco IOS XR software?<br />

A. .bin<br />

B. .tar<br />

C. .smu<br />

D. .pie<br />

E. .vm

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