【汇总】CCNP最新题库（大虾专用导航） 不断更新~~

k.o默痕i.e

k.o默痕i.e

k.o默痕i.e

k.o默痕i.e

k.o默痕i.e

k.o默痕i.e

k.o默痕i.e

k.o默痕i.e

k.o默痕i.e

k.o默痕i.e

k.o默痕i.e

qiansipan

boyshanghai

115.com/file/bhb9ca16

augustine55

讚讚讚讚讚

asmiller

QUESTION 335
Which two statements about the various implementations of STP are true? (Choose two.)
# i; L2 }3 V5 Z) U$ d% [+ n9 V3 yA. Common Spanning Tree maintains a separate spanning-tree instance for each VLAN configured in the
4 P0 s# B6 k6 s" r; hnetwork.
. \, u9 h% O9 I5 [4 r) d# DB. The Spanning Tree Protocol (STP) is an evolution of the IEEE 802.1w standard.
4 p) G+ I4 a4 n' eC. Per-VLAN Spanning Tree (PVST) supports 802.1Q trunking.
D. Per-VLAN Spanning Tree Plus(PVST+) is an enhancement to 802.1Q specification and is supported
' c5 e7 r1 T& \1 w) lonly on Cisco devices.
E. Rapid Spanning Tree Protocol (RSTP) includes features equivalent to Cisco PortFast, UplinkFast, and
BackboneFast for faster network reconvergence.
2 T* `6 w6 ]' O6 S; V  h# r" x) }F. Multiple Spanning Tree (MST) assumes one spanning-tree instance for the entire Layer 2 network,
regardless of the multiple number of VLANs.
Answer: DE
Section: Mixed Practice Questions 5
Explanation/Reference:
2 R- ?. N; T2 Q1 ?3 t6 oPVST+对802.1D改进，只有CISCO设备支持。D选项的802.1Q有笔误，要改成802.1D。
MST使用instance，一个instance映射多个VLAN。
这一题的答案跟解释不符合。按解释选择的话应该选的是D,F

9 q2 D# j. B$ i* g不知哪位高手能告诉我一下。谢谢