题型：单选题 标签：带宽
题目：
5. 请分析下列配置信息。Cisco IOS为class2预留了多大带宽?
policy-map fred
class class1
priority percent 20
class class2
bandwidth remaining percent 20
interface serial 0/0
bandwidth 100
service-policy output fred
A.10kbit/s
B.11kbit/s
C.20kbit/s
D.21kbit/s
E.未提供足够配置信息
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