1. Fill in the blanks with appropriate words according to the text. (12)Computer network is a complex unit, it consists of two or more connected computing units (13)Design of a network and its logical structure should comply with a set of design princip (14)Two important network architectures are: the OsI reference model and the TCP/P reference model model was created by the ISo (16) Note that the OSI model itself is not a network architecture (17)TCP/IP is a communication protocol, it provides many different networking (18)The TCP/IP Internet protocol suite is formed from two standards: the TCP and the Ip ( 19) TCP/P is the foundation of the Internet as we know it today (20)TCP means it is on the transport layer and IP means it is on the network 2. Decide whether the following statements are True or False (21)Design of a network and its logical structure should comply with a set of design (22) The OSI model was not created by the Iso ×) (23) The network architecture is a layer-based (24)The OSI model is a foundation for all comparing protocols (×) (25) The OSI model is a network architecture (26)The TCP/IP Internet protocol suite is formed from three standards (27)TCP means it is on the network layer and IP means it is on the transport layer 3. Translate and analyze the following sente (28)It is used for the purpose of data communication and resource sharing 句子组成:[代指计算机网络,for引导的短语结构修饰used 翻译:它用于数据通信和资源共享。 (29)They include: the organization of functions, the description of data formats and procedure 句子组成: include引导三个并列结构 翻译:其中包括;功能的组织以及数据格式和过程的说明。 (30)However, ISO has also produced standards for all the lay 句子组成:ho 语气的转折, for all the lavers作目的状语 翻译:然而,ISO还是对各层制定了标准 (31) These protocols are continually changing and evolving to support the needs of the 句子组成: change与 evolve为两个并列动词, of the user community作后置定语修饰ned 翻译:这些协议在用户们的支持下不断地改变和进化着。 (32)TCP/IP is a communication protocol, it provides many different networking services1. Fill in the blanks with appropriate words according to the text. (12) Computer network is a complex unit, it consists of two or more connected computing units. (13) Design of a network and its logical structure should comply with a set of design principles. (14) Two important network architectures are: the OSI reference model and the TCP/IP reference model. (15) The _OSI__ model was created by the ISO. (16) Note that the OSI model itself is not a network architecture__. (17) TCP/IP is a communication protocol, it provides many different networking services. (18) The TCP/IP Internet protocol suite is formed from two standards :_the TCP__ and the IP__. (19) __TCP/IP__ is the foundation of the Internet as we know it today. (20) TCP means it is on the __transport__ layer and IP means it is on the __network__ layer separately. 2. Decide whether the following statements are True or False. (21) Design of a network and its logical structure should comply with a set of design principles. ( √ ) (22) The OSI model was not created by the ISO. ( × ) (23) The network architecture is a layer-based. ( √ ) (24) The OSI model is a foundation for all comparing protocols. ( × ) (25) The OSI model is a network architecture. ( × ) (26) The TCP/IP Internet protocol suite is formed from three standards. ( × ) (27) TCP means it is on the network layer and IP means it is on the transport layer separately. ( × ) 3. Translate and analyze the following sentences. (28) It is used for the purpose of data communication and resource sharing. 句子组成：it 代指计算机网络，for 引导的短语结构修饰 used 翻译：_它用于数据通信和资源共享。__________________ (29) They include: the organization of functions, the description of data formats and procedure. 句子组成：include 引导三个并列结构 翻译：其中包括：功能的组织以及数据格式和过程的说明。 (30) However, ISO has also produced standards for all the layers. 句子组成：_however 表语气的转折，for all the layers 作目的状语_ 翻译：_然而，ISO 还是对各层制定了标准__ (31) These protocols are continually changing and evolving to support the needs of the user community. 句子组成：change 与 evolve 为两个并列动词，of the user community 作后置定语修饰 need 翻译：__这些协议在用户们的支持下不断地改变和进化着。 (32) TCP/IP is a communication protocol, it provides many different networking services