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质量管理常见的方法有：PDCA循环、（）等。
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服务测量用于获得与服务交付过程相关的各种数据，进而获得服务改进活动所需的各种原始资料，其测量指标可分为三种类型，下面（）选项包括了正确的三种类型。
案例分析题（1）is the science of hiding information. Whereas the goal of cryptography is to make data unreadable by athird party.the goal of steganography（[ˌstegə’nɒgrəf ]隐写术）is to hide the data from a third party. In thisarticle，I will discuss what steganography is，what purposes it serves，and will provide an example using available software.There are a large number of steganographic（2）that most of us are familiar with（especially if you watch a lotof spy movies），ranging from invisible ink and microdots to secreting a hidden message in the second letter of each word of a large body of text and spread spectrum radio communication. With computers and networks，there are many other ways of hiding informations，such as：Covert channels（c，g，Loki and some distributed denial-of-service tools use the Internet Control（3）Protocol，or ICMP，as the communication channel between the “badguy”and a compromicyed system）Hidden text with in WebpagesHiding files in “plainsight”（c，g.what better place to “hide” a file than with an important sounding name in the c：\winnt system32 directory）Null ciphers（c，g，using the first letter of each word to form a hidden message in an otherwise innocuous text）steganography today，however，is significantly more（4）than the example about suggest，allowing a user tohide large a mounts of information within image and audio.These forms of steganography often are used in conjunction with cryptography so the information is double protected；first it is encrypted and then hidden so that an advertisement first.find the information（an often difficult task in and of itself）and the decrypted it.The simplest approach to hiding data within ani mage file is called（5）signature insertion.In this method，we can take the binary representation of the hidden data and the bit of each byte within the covert image.If we areusing 24-bit color the amount and will be minimum and indiscriminate to the human eye. （2）处选择（）
我国提出的两化融合是指（）融合。
案例分析题陈俊是信管网公司运维部门经理，由于最近反馈到运维部门的事件数量下降，陈经理自认为客户的抱怨比前期少了。周三陈经理按照惯例去和客户开碰头会。“早啊，何总。”陈经理一进会议室就与客户主管何总打了招呼。“嗯”何总阴沉着脸应了一句，陈经理一看觉得气氛不对，再一看周边几个区域管理员都没了以往的兴致勃勃的劲，老老实实坐在那里，便意识到出了问题，立刻打起十二分精神。“开会了！”何总看到陈经理进来之后立刻宣布会议开始，并说“今天的会议就一个主题：维护，上周公司领导去基层检查工作发现计算机设备维护存在不少问题。“陈总一听便知何总下面的话是说给自己听的。“最近系统运行不稳定，我们要求提供服务的时候，系统却停止服务进行维修，不能提供充分的服务时间。”何总说到这里有点激动，接着说“希望你们你们尽快解决这个问题，确保提供正常的系统服务。特别是公司要在“十一”黄金周进行促销活动，你们必须为黄金周业务的正常运营提供保障”。陈经理返回办公室后仔细查阅了相关《运维服务合同》，但从该合同中无法得知“十一”期间是否一定要提供服务，并且“十一”期间维护部门已经安排了系统检修工作。 在该案例中系统维护要求与客户服务要求存在哪些问题？
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