X.25.
Asynchronous transfer mode (ATM).
VoIP.
Public Switched Telephone Network (PSTN).
第1题:
Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) .It is a ( ) information transfer mode.
A.connection oriented
B.connectionless
C.high bandwidth utilization
D.poor real-time
第2题:
第3题:
ATM称为异步转移模式,(Asynchronous Transfer Mode)是一种快速分组交换的传输方式。
第4题:
Which statements is true about Foreign Exchange Station (FXS) ports on a router?()
第5题:
An alternative to plain old telephone service (POTS) would be:()
第6题:
PSTN的中文全程是()最早的主要是提供电话业务。英文全程是Public Switch Telephone Network。
第7题:
Which statement is true about Foreign Exchange Station (FXS) ports on a router?()
第8题:
What best describes an FXO interface?()
第9题:
analog trunks that provide the Survivable Remote Site Telephony (SRST) feature
analog trunks that provide VoIP gateway functionality
analog trunks that connect a gateway to plain old telephone service (POTS) device such as analog phones, fax machines, and legacy voice-mail systems
analog trunks that connect a gateway to a central office (CO) or private branch exchange (PBX)
第10题:
话音交换技术
数据交换技术
集中交换技术
电路交换技术
第11题:
Cisco IOS gateways provide services such as address translation and network access control for the devices on the network
Cisco IOS gateways provide services such as bandwidth management and accounting
Cisco IOS gateways provide media termination and signal translation between the public switched telephone network (PSTN) and IP networks
Cisco IOS gateways provide zone management for all registered endpoints in the network
第12题:
X.25.
Asynchronous transfer mode (ATM).
VoIP.
Public Switched Telephone Network (PSTN).
第13题:
第14题:
异步转移模式,ATM(Asynchronous Transfer Mode)是一种快速分组交换的传输方式。
第15题:
What type of services are provided by the Cisco IOS gateways in a VoIP network with Cisco CallManager functionality? ()
第16题:
Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) . It is a ( ) information transfer mode.
第17题:
简述异步传输模式(asynchronous transfer mode,ATM)的特点。
第18题:
公众电话交换网(PSTN,PuBlic SwitcheD Telephone Network)是承载话音业务的基础网络,其采用的技术是()。
第19题:
In which three network technologies is traffic shaping used to prevent and manage congestion? ()
第20题:
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
第21题:
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22题:
第23题:
connection oriented
connectionless
high bandwidth utilization
poor real-time
第24题: