[单选题]The TCP protocolis a （）layer protocol.

正确答案 ：C

transport

[单选题]An example of scope verification is （）.

正确答案 ：A

review the performance ofan installed software module

[单选题]Many of the activities performed during the preliminary investigation are still being conducted in(1),but in much greater depth than before. During this phase, the analyst must become fully aware of the (2) and must develop enough knowledge about the (3)and the existing systems to enable an effective solution to be proposed and implemented. Besides the(4)for process and data of current system, the deliverable from this phase also includes the(5)for the proposed system.

正确答案 ：

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