以下哪些情况适合用调查分析法进行预测() 顾客数量有限。 调查费用不高。 顾客意向明确。 顾客意向不轻易改变。
行李运价率为硬座客票票价率的()%。 10。 5。 2。 1。
Select the statement that best describes The cure for Amplification Principle in the Internetdomain, as explained in RFC 3429 (Internet Architectural Guidelines )()? Amplification is prevented if global changes have only a local effect as opposed to systems in which global changes have a local effect。 Amplification is prevented if local changes have only a local effect as opposed to system inwhich localchange have a global effect。 Internet domain does not suffer from“The Amplification Principle”as BGP takes care of misbehaving advertisers。 None of the above。
Which statement is true about IP telephony calls?() A Voice over IP (VoIP) packet consists of the voice payload, IP header, TCP header, RTP header, and Layer 2 link header.。 The voice carrier stream uses H323 to set up, maintain, and tear down call endpoints.。 Call control signaling uses Real-Time Transport Protocol (RTP) packets that contain actual voice samples.。 The sum of bandwidth necessary for each major application, including voice, video, and data, should not exceed 75 percent of the total available bandwidth for each link.。
企业组织外部虚拟化的具体形式有() 外包。 战略联盟。 特许经营。 合资企业。 虚拟销售网络。
以下属于传统教学观点的是()。