902论坛讲解视频上认为109题是错题，我感觉需要慎重，请大家注意

791061838

{:soso_e100:}论坛上发布的题库讲解视频，方便了我们理解和学习题库，为此感谢老师辛苦的讲解！
但在902题库讲解视频的109题，老师专门说是错题，将正确答案改为B，我百思不得其解，希望说出我的观点，以免大家误选。
109题原题如下,题目截图在最下方
QUESTION 109
Refer to the exhibit. Router C was configured so that it could form an adjacency with three OSPF
neighbors, one connected to each of its three physical interfaces.
Which statement is correct about router C？
Select the best response.
A. It is configured and functioning correctly as an OSPF internal router.
B. It is configured and functioning correctly as an ABR attached to stub area 4.
C. It is configured and functioning correctly as an ASBR attached to external area 4.
D. It is configured and functioning correctly as an ABR attached to totally stubby area 4.
E. It is not configured correctly to function as specified.
题库的答案是D,但老师认为选B。并做了更正！


老师的解释是：答案有错，是STUB不是NSSA、截图如下,file:///C:/DOCUME~1/ADMINI~1/LOCALS~1/Temp/D$2AKQY9VN0DJLKC76I3VXX.jpg
但D选项,根本不是描述NSSA，而是完全末梢区域即total stub，如果是nssa那就叫完全非纯末梢区域 即totally nssa,D选项很显然说区域4为total stub，total stub和stub的区别是不允许3类LSA，即汇总LSA，很显然在题目中有
所以我认为D选项很正确的，希望听取大家的高见

zyp

CMax89

飞扬梦天

love520

很好的问题！我觉得去做实验来验证一下更好~
实验来回答~

jomc

no summary lsa, 确实应该totally stub,答案应该是D

Rioliang

完全同意楼主

云中之舟

嗯，我也认为D是对的