第22题: [简答题]在组播网络中配置 AUTO-RP。什么情况情况下会泛洪数据包? 参考答案:
(1)Announce messages and discovery messages will be flooded if command ip pim autorp listener is configured when pim sparse mode is used or if pim sparse-dense mode is used.
(2)When RP lost and sparse-dense mode is configured,multicast packets will be flooded, until interfaces is pruned.
(3)When sparse-dense mode is configured, multicast packets destined for group of unknown RP will be flooded.
第30题: [单项选择]硫化氢中毒的机制是 A. 该气体与细胞色素氧化酶中三价铁和谷胱甘肽结合抑制细胞呼吸酶 B. 该气体与氧化型细胞色素氧化酶中的二价铁结合,引起细胞内窒息 C. 使血氧饱和度增加,组织不能利用氧 D. 引起氧分压增加,导致组织供氧不足,引起缺氧 E. 影响血液中氧的释放和传递,导致低氧血症和组织缺氧 参考答案:A