单项选择题

Which IOS QoS enhancement was created to address scalability and bandwidth guarantee issues?（）

A.DiffServ
B.IntServ
C.RSVP
D.WFQ

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多项选择题

Which two of the following Cisco router platforms support Multicast Distributed Fast Switching?（）

A. 3600 series
B. 7200 series with NSE-1
C. 7500 series
D. 12000 series

多项选择题

When you decide on Campus QoS Design elements, which two statements correctly identify considerations to be taken into account?（）

A. Voice needs to be assigned to the hardware priority queue.
B. Voice needs to be assigned to the software priority queue.
C. Call signaling must have guaranteed bandwidth service.
D. Strict-priority queuing should be limited to 50 percent of the capacity of the link.

单项选择题

Which routing protocol best fits these requirements?（）
- Supported by multiple router vendors
- Requires minimum router CPU and memory resources
- Uses a simple routing metric
- Supports manual or automatic route summarization

A.EIGRP
B.OSPF
C.IS-IS
D.RIPv2