400-101, 163题，还有个答案是什么？

ewring

QUESTION 163
Which two statements about MLD are true? (Choose two.)
1 d/ h/ n" J, V- pA. There are three subtypes of MLD Query messages.
B. When a single link supports multiple interfaces, only one interface is reQuired to send MLD messages.
8 m2 F# S+ L8 f* L" hC. MLD is a subprotocol of PIMv6.
5 A; u* Q3 l9 \. ^" J4 q, }D. When a single link supports multiple interfaces, all supported interfaces are reQuired to send MLD messages.
) \5 ^8 D% V6 U1 _1 T- QE. The code section in the MLD message is set to 1 by the sender and ignored by receivers
F.MLD is a subprotocol of ICMPv6.


下面这题 是要有2个答案，一个答案是B ，还有一个 是哪个 喃？
3 O) s3 f. k! }" ?' _' A  U

bobwang

应该是B和F

auby1982

B和F

winfgin

MLD使用ICMPv6的报文格式，F

rluo

B,F

black105133