这题到底选哪个啊？？？

retest · 发表于 2012-8-26 14:29:17

QUESTION 130
Which three of these statements about penultimate hop popping are true? (Choose three.)
A. It is used only for directly connected subnets or aggregate routes.
B. It can only be used with LDP.
C. It is only used when two or more labels are stacked.
D. It enables the Edge LSR to request a label pop operation from its upstream neighbors.
E. It is requested through TDP using a special label value that is also called the implicit-null value.
F. It is requested through LDP using a special label value that is also called the implicit-null value.

429和415这道题答案有冲突，该信哪个？？

brian0711 · 发表于 2012-8-26 17:11:54

D, E and F{:soso_e101:}

retest · 发表于 2012-8-26 21:18:58

brian0711 发表于 2012-8-26 17:11
' y( }9 X8 ]* w# m0 G- [

登录/注册后可看大图
+ W! D; ?/ f3 e* B
D, E and F

确认吗？？

hugo_520 · 发表于 2012-8-26 23:40:00

5ibob · 发表于 2012-8-27 21:49:31

yiyi32373614 · 发表于 2012-12-9 16:59:09

ADF TDP 没有implicit-null

账号		自动登录	找回密码
密码			论坛注册

[LAB战报] 这题到底选哪个啊？？？

客服中心

投诉建议