正确答案:

题目：TMN 为电信网和业务提供管理功能并能提供与电信网和业务进行通信的能力。 ( )

解析：√

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学习资料的答案和解析：

[单选题]电信网的拓扑结构有多种形式，一般在相同的网络规模条件下，采用（）拓扑结构的网络具有较高的可靠性，但线路投入较大、经济性较差。

网状

[多选题]【Recently， telecommunication carriers has been building All-IP core networks in order to effectively support various kinds of fixed and mobile broadband services，such as up-and down-loading You tube and SNS（Social Networking Services）with rich video file，as well as broadband mobile Internet services. Such All-IP network is called NGN（Next Generation Network），which guarantees secure authentication and QoS such as the bandwidth and the delay. From the service point of view，convergence of fixed and mobile communications，known as FMC（Fixed Mobile Convergence）is becoming a key increasing new services and expanding the market.】 Form the paragraph above，we can see that（）can be defined as a network that can effectively support various kinds of fixed and mobile broadband services，with guaranteed QoS in terms of（）and etc. And the key to develop new services and gain larger market share should be（）

NGN

social network A．data rate

availability

band width， delay A．mobile communications

All-IP core network

解析：C,D,D