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单选题Which statements is true about Foreign Exchange Station （FXS） ports on a router？（）A the FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central officeB the FXS interface connect directly to a s
题目
the FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office
the FXS interface connect directly to a standard telephone， fax machine， or sililar device and supplies ring， voltage， and dial tone
the FXS interface connect directly to an IP phone and supplies ring， voltage， and dial tone
the FXS interface connect directly to ISDN voice channels
相似问题和答案
第1题：
A、Disclosure of private feeling is distasteful.
B、People are suspicious of outsiders.
C、Uniformity is not highly thought of.
D、there is a positive attitude about words of disagreement.
第2题：
Which of following statements about testing software with data is (are) true?
Ⅰ.The primary purpose of such testing is to find errors.
Ⅱ.Such testing can demonstrate the existence of errors but can not demonstrate the absence of errors.
A．Neither
B．Ⅰ only
C．Ⅱ only
D．Ⅰ and Ⅱ
第3题：
Which of the following statements about Leopold and Rudolph Blaschka is TRUE?
A. They were brothers.
B. They were artists.
C. They were florists.
D. They were farmers.
32．答案为B。根据第一段最后一句，the work of two artists-naturalists，Leopold Blaschka and his son Rudolph作出该项选择。
第4题：
Which statement is true about Foreign Exchange Station （FXS） ports on a router？（）
- A、The FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office.
- B、The FXS interface connects directly to a standard telephone，fax machine，or similar device and supplies ring，voltage，and dial tone.
- C、The FXS interface connects directly to an IP phone and supplies ring，voltage，and dial tone.
- D、The FXS interface connects directly to ISDN voice channels.
正确答案:B
第5题：
Which statements is true about Foreign Exchange Station （FXS） ports on a router？（）
- A、the FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office
- B、the FXS interface connect directly to a standard telephone， fax machine， or sililar device and supplies ring， voltage， and dial tone
- C、the FXS interface connect directly to an IP phone and supplies ring， voltage， and dial tone
- D、the FXS interface connect directly to ISDN voice channels
正确答案:B
第6题：
A.It explores man's never-ending search for the satisfaction of materialistic desires.
B.It relates the conflicts between the society and the individual.
C.It is about the effect of sin on the people involved and the society as a whole.
D.It presents a p
第7题：
B.Language is symbol
C.Animals also have language
D.Language is arbitrary
本题要求选不正确的，C选项，动物也有语言，错误。语言是人类在交际中使用的一套任意的声音符号系统。动物没有语言，动物只是本能发出声音。综上，应选C。
A选项，系统的，故排除。
B选项，符号，故排除。
D选项，任意的，故排除。
故正确答案为C项。
第8题：
Which of the following statements is true?
A．The volume of deals for hedging purposes is much higher than that for arbitraging and speculative purposes.
B．The foreign exchange business for commerce and tourism must be done before 11a.m.on 2 January.
C．It is hedgers' money that drives much larger volume of other transactions.
D．None of the above.
解析：期货交易中，虽然投机目的和套利目的的交易量远远高于以保值为目的的交易量，但是保值交易的资金最终促成了其他交易。
第9题：
Which two statements are true about L2TP tunnels?（） (Choose two.)
- A、Traffic is clear text
- B、Traffic is encrypted
- C、They are initiated by the LNS
- D、They are initiated by the LAC
正确答案:A,D
第10题：
Which two statements about the Cisco Nexus 1000V VSM are true?（）
- A、It performs switching decisions and forwarding for the VEM
- B、It can be run on a virtual machine
- C、It can be used for remote VEM switching Iine cards
正确答案:B,C