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單項選擇題

During the IPv6 autoconfiguration, what does the device append to the 64- bit prefix that it receives from the router to create its IPv6 address?（）

A. a pseudora ndom generated number
B. its locally configured IPv4 address
C. the DHCP - supplied device ID
D. its MAC address

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單項選擇題

Refer to the exhibit. Based on this command output, what can we conclude about R3?（）

A. R3 is an ABR.
B. R3 is not connec ted to the backbone.
C. R3 has four neighbors.
D. R3 is the DR for area 2.

單項選擇題

Refer to the exhibit. OSPF is running throughout the network. You want to minimize the propagation of LSAs into and out of A rea 1. Which OSPF feature would best achieve this goal? （）

A. stub
B. totally stubby
C. NSSA
D. totally NSSA