正确答案: B

第一类增值电信业务

题目：互联网数据中心业务属于（ ）。

解析：B

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举一反三的答案和解析：

[单选题]3G业务发展滞后手机上网用户数快速增加，这主要是因为3G业务提供了（ ）。

比2G业务更快的移动上网速率

[单选题]【In the forthcoming years,Beyond-3G(B3G) environments will undoubtedly be deployed in most parts around the globe, permitting a world class solution for network interconnection, A B3G context enables the efficient cooperation of existing wireless technologies, including cellular-based(e.g. 2G/3G), broadcast-oriented(e.g. DVB)-in specific DVB-H, and Internet-based(WLAN/WMAN)networks, all relying on enhanced IP as the unifying layer. Hence, in this particular and yet to be deployed environment, mobile, systems and platforms will permit to provide enhanced services to all applications across heterogeneous access networks. This will effectively enlarge the scope of service deployment, availability and accessibility to the users】 Based on the paragraph above, it is shown that (98) will be used as the higher layer protocol to unify cellular networks ,broadcast networks and (99) networks, which is enabled by the context of (100).

enhanced IP

[单选题]如果怀疑GPS跑偏，哪些说法是不对的?()

当故障GPS前偏时，周围基站与故障站主频点相同频点的UpPTS时隙都受到比较大的干扰