正确答案: C

DNS和DHCP

题目：（ ）两个应用层协议采用的传输层协议都是UDP协议。[1分]

解析：C

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举一反三的答案和解析：

[单选题]能够综合评判电信服务质量的指标是（ ）。

用户满意度

[多选题]【An overall cellular network contains a number of different elements from the base transceiver station (BTS) itself with its antenna back through a base station controller (BSC), and a mobile switching centre (MSC) to the location registers (HLR and VLR) and the link to the public switched telephone network (PSTN). Of the units within the cellular network, the BTS provides the direct communication with the mobile phones. There may be a small number of base stations then linked to a base station controller. This unit acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call. The links between the BTS and the BSC may use either land lines of even microwave links. Often the BTS antenna towers also support a small microwave dish antenna used for the link to the BSC. The BSC is often co-located with a BTS. The BSC interfaces with the mobile switching centre. This makes more widespread choices about the routing of calls and interfaces to the land line based PSTN as well as the HLR and VLR.】 From the paragraph above, in a cellular network, the （98） can provide direct communication with a mobile phone, the （99） acts as a small centre to route calls to the required base station, and it also makes some decisions about which of the base station is best suited to a particular call.（100） can be used to link the BSC with related BTS。

BTS

MS

VLR

解析：B,C,D

[单选题]全球星系统中，每个业务区总有（ ）颗卫星加以覆盖。

2-4

[单选题]根据通信企业的市场目标和具体要求，将营销活动的若干环节视为一个整体和前后连贯的过程，这种营销策划方法是（ ）策划。

线式