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某计算机系统各组成部件的可靠性模型由下图所示，若每个部件的千小时可靠度都为R，则该计算机系统的千小时可靠度为（）

信息系统的概念结构如下图所示，正确的名称顺序是（）

IT服务目录的设计一般按照“（）”的步骤进行。
①服务分类与编码    ②确定小组成员    ③服务详细描述     ④评审及发布服务目录  ⑤列举服务清单  ⑥完善服务目录。

随着IT服务运营过程中知识的不断沉淀和积累、客户期望值的不断提高，必然带来不间断的服务改进需求，所以需要对IT服务进行持续改进，持续改进方法的过程中包括下面7个阶段（①②③④⑤⑥⑦未按顺序排列）：
①分析信息和数据    ②实施改进    ③识别改进战略/策略     ④收集数据  ⑤识别需要测量什么  ⑥展示并使用信息  ⑦处理数据按照持续改进方法的正确过程顺序，下面（）选项是正确选项。

常见的运维质量实施和检查活动包括（）
①内审  ②管理评审   ③进行满意度调查   ④质量文化培训。

任何一个团队从开始组建到最终达到绩效要求，需要一个周期。依据塔克曼群体发展模型，结合IT服务管理工作特性，将团队建设周期分为四个阶段，他们分别是（未按正确次序排列） ①风暴期 ②表现期 ③组建期 ④规范期团队建设周期的正确排序为（）

IT服务团队建设周期中，组建期有四个关键步骤，其前后顺序不能改变。现将次序打乱为： ①确定目标 ②稳定核心成员 ③了解现状 ④建立团队价值观下面（）是其正确的排序方式。

ITSS（Information Technology Service Standards）是一套成体系和综合配套的信息技术服务标准库，全面规范了信息技术服务产品及其组成要素，用于指导实施标准化和可信赖的信息技术服务。该体系的组成要素包括（）

Typically，an IP address refers to an individual host on aparticular network.IP also accommodates addresses that refer to a group of hosts on one or more networks.Such addresses are referred to as multicast addresses，and the act of sending a packet from a source to the members of a（1）group is referred to as multicasting. Multicasting done（2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the（3）multicast group recognize the multicast addressand（4）the packet. In this case，only a single copy of the packet is ever transmitted. This technique works because of the（5）nature of a LAN：A transmission from any one station is received by all othe rstation on the LAN.

Typically，an IP address refers to an individual host on aparticular network.IP also accommodates addresses that refer to a group of hosts on one or more networks.Such addresses are referred to as multicast addresses，and the act of sending a packet from a source to the members of a（1）group is referred to as multicasting. Multicasting done（2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the（3）multicast group recognize the multicast addressand（4）the packet. In this case，only a single copy of the packet is ever transmitted. This technique works because of the（5）nature of a LAN：A transmission from any one station is received by all othe rstation on the LAN.

Typically，an IP address refers to an individual host on aparticular network.IP also accommodates addresses that refer to a group of hosts on one or more networks.Such addresses are referred to as multicast addresses，and the act of sending a packet from a source to the members of a（1）group is referred to as multicasting. Multicasting done（2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the（3）multicast group recognize the multicast addressand（4）the packet. In this case，only a single copy of the packet is ever transmitted. This technique works because of the（5）nature of a LAN：A transmission from any one station is received by all othe rstation on the LAN.

Typically，an IP address refers to an individual host on aparticular network.IP also accommodates addresses that refer to a group of hosts on one or more networks.Such addresses are referred to as multicast addresses，and the act of sending a packet from a source to the members of a（1）group is referred to as multicasting. Multicasting done（2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the（3）multicast group recognize the multicast addressand（4）the packet. In this case，only a single copy of the packet is ever transmitted. This technique works because of the（5）nature of a LAN：A transmission from any one station is received by all othe rstation on the LAN.

Typically，an IP address refers to an individual host on aparticular network.IP also accommodates addresses that refer to a group of hosts on one or more networks.Such addresses are referred to as multicast addresses，and the act of sending a packet from a source to the members of a（1）group is referred to as multicasting. Multicasting done（2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the（3）multicast group recognize the multicast addressand（4）the packet. In this case，only a single copy of the packet is ever transmitted. This technique works because of the（5）nature of a LAN：A transmission from any one station is received by all othe rstation on the LAN.