单项选择题
How often are IS-IS Hello packets transmitted?（）
A. 3 seconds for DIS; 9 seconds for non-DIS
B. 9 seconds for DIS; 3 seconds for non-DIS
C. 10 seconds for DIS; 3 seconds for non-DIS
D. 10 seconds for all routers
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相关考题
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多项选择题
What are the three components of the ISO NET address?（）
A. Area ID
B. N-selector
C. System ID
D. AS number
E. ISO number
F. MAC address -
单项选择题
Three IS-IS routers on a broadcast segment have different priority values configured. Which router is elected the DIS on that broadcast segment?（）
A. the router with the lowest priority
B. the router with the highest priority
C. the router with the highest System ID
D. the router with the highest IP address -
单项选择题
What type of OSPF router is responsible for redistributing routes into OSPF?（）
A. ABR
B. ASBR
C. internal router
D. backbone router
