The FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office.
The FXS interface connects directly to a standard telephone，fax machine，or similar device and supplies ring，voltage，and dial tone.
The FXS interface connects directly to an IP phone and supplies ring，voltage，and dial tone.
The FXS interface connects directly to ISDN voice channels.
第1题：
A. They must be fully meshed
B. They can be in a different AS
C . They do not need to be directly connected
D. They must be directly connected
第2题：
Which statements is true about Foreign Exchange Station （FXS） ports on a router？（）
第3题：
The term foreign exchange is best defined by the following statement: it is ______.
A．the rate of exchange between two currencies
B．synonymous with currency exchange
C．the place in which foreign currencies are exchanged
D．an instrument such as paper currency, note, and check used to make payments between countries
第4题：
Which statement is true about IBGP routers? （）
第5题：
Which statement is true about terms in a policy?（）
第6题：
Which statement about RIPng is true?（）
第7题：
Which statement is true about terms in a policy?（）
第8题：
A.A
B.B
C.C
D.D
第9题：
Which three statements are true about terms in a policy?（）
第10题：
Which two statements are true about terms in a routing policy?（）