Computer Networking
Which of the following network types have a designated router and a backup designated router assigned?1. Broadcast2. Point-to-point3. NBMA4. NBMA point-to-point

All of these
1, 2 and 3
1 and 3
3 and 4

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Computer Networking
The data-link layer, in reference to the OSI model, specifies

None of these
data link procedures that provide for the exchange of data via frames that can be sent and received
the interface between the X.25 network and packet mode device
the virtual circuit interface to packet-switched service
All of these

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Computer Networking
You need to allow one host to be permitted to attach dynamically to each switch interface. Which two commands must you configure on your catalyst switch to meet this policy?1. Switch (config-if) # ip access-group 102. Switch (config-if) # switchport port-security maximum 13. Switch (config) # access-list 10 permit ip host 14. Switch (config-if) # switchport port-security violation shutdown5. Switch (config) # mac-address-table secure

4 and 5
2 and 4
1 and 3
2, 3 and 5

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