职业技能实训一 计算机网络（网络管理）《网站美工设计基础》形成性考核答案 1 (多选题)对空调系统运行状况的检查项目有( )。
2 (多选题)在综合布线系统中，信息插座可采用( )。
3 (多选题)空调器压缩机运转时振动和噪声过大，可能的原因有( )。
4 (多选题)计算机网常用通信线缆包括：( )。
5 (多选题)快速以太网标准主要包括( )。
6 (多选题)lOBase-T以太网组网原则包括( )。
7 (多选题) lOBase-T以太网的硬件包括( )。
8 (多选题) 10 Mbps以太网主要包括( )标准。
9 (多选题) lOOBase-TX的组网原则包括( )。
10 (多选题) lOOBase-TX的硬件包括( )。
11 (多选题)设置服务器的硬盘时，需要考虑的因素有( )几个方面。
12 (多选题) ATM的虚连接有( )两种类型。
13 (多选题) PPP协议由( )三个部分组成。
14 (多选题) RS-232-C接口技术指标包括( )。
15 (多选题)目前数据网络服务主要有( )。
16 (多选题)交换机的交换模式有( )。
17 (多选题) ISDN基本速率接口BRI提供( )。
18 (多选题)数字数据网DDN由( )组成。
19 (多选题)交换机接口存在( )几种不同状态。
20 (多选题)数据传输加密可以在通信的( )三个不同层次来实现。
21 (多选题)交换机的性能指标有( )。
22 (多选题)局域网交换机最主要的指标是( )。
23 (多选题)从广义上分，交换机可以分成( )两种。
24 (多选题)交换机一般分为( )。
25 (单选题)( )为网络用户提供文件管理，它提供了操作系统中文件系统的各种功能，包括对目录和文件的操作以及对网络文件系统的控制与管理等。
26 (单选题)任何一个以数字127开头的IP地址都叫做( )。
27 (单选题)D类IP地址是( )。
28 (单选题) 32位全为1的IP地址(即255. 255. 255. 255)被称为( )。
29 (单选题)子网地址为162. 105. 130.O，子网掩码为255. 255. 255.0的网络上，该网络的广播地址为( )。
30 (单选题) IP地址中，所有主机号部分为“1”的地址是___。
31 (单选题)将B类IP地址168. 195.0.0划分成27个子网，则子网掩码为( )。
32 (单选题)一个主机号部分的所有位都为“0”的地址是代表该网络本身的，叫做( )。
网络地址 33 (单选题) IP地址为“192. 168.1.1”对应的子网掩码为( )。
34 (单选题) IP地址在192.0.0.0～223. 255. 255. 255范围内的是( )。C类 35 (单选题)IP地址中A、B、C三类地址统称为( )。
36 (单选题)综合布线系统是美国电报电话公司(AT＆T)在( )推出的。1985 37 (单选题)中国综合布线的行业标准在( )颁布。1997 38 (单选题)现阶段的计算机属于( )。
39 (单选题)世界上第一台电子计算机被命名为( )。
40 (单选题)世界上第一台电子计算机诞生于( )年。
1946 41 (单选题)普通计算机的连续工作时间应当限定在( )以内。
42 (单选题)计算机房内设置火灾自动灭火设施的区域，其隔墙和门的耐火极限不应低于( )。
43 (单选题)从事新闻、出版以及电子公告等服务项目的互联网信息服务提供者，应当记录信息提供的信息及其发布时间、互联网地址或者域名，并将备份保存( )日。
44 (单选题)( )是工作在网络层上、实现子网之间转发数据的设备。
45 (单选题)( )技术是在OSI参考模型第一层的基础上完成，具有灵活性和负载平衡能力等优点。
46 (单选题)( )又称为交换式集线器，工作在OSI参考模型的第二层数据链路层。
47 (单选题)( )是指连接的距离超过网络的常规范围时使用的网桥。
48 (单选题)( )是指在传输介质允许长度范围内互联网络的网桥。
49 (单选题)( )的特点是由网桥根据每个节点在互联网络中的特定地址来确定网络传输路径。
50 (单选题)( )是两个局域网间建立连接的桥梁。
51 (单选题)6个8口集线器级连在一起时，可以看作是一个( )口的集线器。
48 52 (单选题)在( )系统中，所有连接的节点共享一个最大的带宽。
53 (单选题)( )具有重新生成信号和过滤的功效，能分辨所需要的数据并发送到目的地。
54 (单选题)( )即通常所说的Hub，基于星状拓扑结构，一般位于网络传输介质的中央节点。
55 (单选题)采用CSMA／CD介质访问方式，当发生冲突时( ) 56 (单选题)联通CDMA就是( )的一种方式。
57 (单选题)( )线路上无信号表示0；
正或负脉冲表示1，前后脉冲必须在极性上交替。
58 (单选题)( )是指信道在单位时间内可以传输的最大信号量。
59 (单选题)( )是指可以不失真地传输信号的频率范围，通常被称为信道的通频带。
60 (单选题)( )方式中每个字符都独立传输，接收设备每收到一个字符的开始位后进行同步。
61 (单选题)( )指接收端按照发送端的每个码元的起止时间及重复频率来接收数据，并且要校准自己的时钟，以便与发送端的发送取得一致，实现数据接收。
62 (判断题) E-mail服务器是用来存放所发送和接收的电子邮件的。对 63 (判断题)WWW的应用是客户机／客户机模式。
错 64 (判断题) WWW中的信息资源主要由一个个的网页为基本元素构成。对 65 (判断题) UDP协议可以为网络协议上层应用提供低开销的、不可靠的、无连接的服务。对 66 (判断题) IPX/SPX协议是IBM公司开发的通信协议。
错 67 (判断题)市电直接供电方式易受电网波动的影响。
对 68 (判断题)市电直接供电送至机房配电柜后直接分送到各个计算机终端和网络的其他设备，这种方式实现较为复杂。
错 69 (判断题)帧中继是一种分组交换技术网络，它是将信息数据以帧的形式进行封装，并以帧为基础进行交换、传输、处理的数据业务。对 70 (判断题)无论交换机采用DB-9或DB-25串行接口还是采用RJ-4s接口，都需要通过专门的Console线连接至配置用计算机的串行口。
对 71 (判断题)磁盘一旦分区后，其分区格式便无法再更改。
错 72 (判断题)应用磁盘工具可将两个较小的磁盘分区合并为一个较大的分区。对 73 (判断题) IEEE1394主要应用于高速数据传输的外围设备同主机之间的连接。对 74 (判断题)串行传送在短距离内的传输速度要比并行传送快。
错 75 (判断题)串行传送适合于长距离数据传输。对 76 (判断题)磁盘阵列的热备用技术是在两块独立的磁盘上同时记录相同的数据。
77 (判断题)磁盘阵列的数据传输速率与磁盘的数量是成反比的。错 78 (判断题)磁盘阵列技术是将几个磁盘视为单一的磁盘，用户不必规划数据在各磁盘的分布。
对 79 (判断题)简单的说，磁盘阵列技术就是在一台计算机内安装多块硬盘的技术。
80 (判断题)硬盘的内部传输速率要高于外部传输速率。错 81 (判断题) SCSI接口主要应用于服务器和高端计算机领域中。对 82 (判断题)串行ATA -次可以传输多位二进制数据。
错 83 (判断题)硬盘的IDE接口使用DMA方式进行数据传输，必须依赖CPU的指令运行。
错 84 (判断题) CF卡、SM卡中的数据必须通过专门的读卡器才能与计算机进行数据通信。
对 85 (判断题)磁带采用顺序且连续的存储方式。
对 86 (判断题)导静电地面、活动地板、工作台面和坐椅垫套必须进行静电接地。
对 87 (判断题)由于主机房内采用的活动地板可由钢、铝或其他阻燃性材料制成，所以，允许金属部分暴露在地板表面。
错 88 (判断题)设备或驱动程序没有WHQL认证就不能在Windows系统下正常运行。
错 89 (判断题)机房内的各类熔丝可以使用铜、铁、铝线代替。错 90 (判断题)电子计算机中心应设置在常年下风方向的地方。
错 91 (判断题)火灾自动报警装置是将燃烧产生的烟雾、热量和光辐射等物理量，通过感温、感烟和感光等火灾探测器变成电信号，发出警报的。
对 92 (判断题)在使用灭火器之前，要先去除铅封和保险销。对 93 (判断题)在使用泡沫式灭火器时，需要将灭火器倒置过来喷射。
对 94 (判断题)灭火的原理就是破坏燃烧的条件，使燃烧反应终止的过程。其基本原理可归纳为冷却、窒息、隔离和化学抑制等。对 95 (判断题)电器超长时间运行，导致发热或产生故障不会引起火灾。
错 请您删除一下内容，O(∩_∩)O谢谢！！！2015年中央电大期末复习考试小抄大全，电大期末考试必备小抄，电大考试必过小抄Many people have the same mixed feelings when planning a trip during Golden Week. With heaps of time, the seven-day Chinese请您删除一下内容，O(∩_∩)O谢谢！！！National Day holiday could be the best occasion to enjoy a destination. However, it can also be the easiest way to ruin how you feel about a place and you may become more fatigued after the holiday, due to battling the large crowds. During peak season, a dream about a place can turn to nightmare without careful planning, especially if you travel with children and older people. As most Chinese people will take the holiday to visit domestic tourist destinations, crowds and busy traffic are inevitable at most places. Also to be expected are increasing transport and accommodation prices, with the possibility that there will be no rooms available. It is also common that you＇ ll wait in the line for one hour to get a ticket, and another two hours at the site, to only see a tiny bit of the place due to the crowds. Last year, 428 million tourists traveled in China over the week-long holiday in October. Traveling during this period is a matter that needs thorough preparation. If you are short on time to plan the upcoming “Golden Week“ it may not be a bad idea to avoid some of the most crowded places for now. There is always a place so fascinating that everyone yearns for. Arxan is a place like this. The beauty of Arxan is everlasting regardless of the changing of four seasons. Bestowed by nature, its spectacular seasonal landscape and mountains are just beyond word. Arxan is a crucial destination for the recommended travelling route, “China Inner Mongolia Arxan — Hailar — Manzhouli“. It is also the joint of the four prairies across the Sino-Mongolian border, where people gravitate towards the exotic atmosphere mixed with Chinese, Russian, and Mongolia elements. As a historic site for the Yitian Battle, Arxan still embodies the spirit of Genghis Khan. Walking into Arxan, you will be amazed by a kaleidoscope of gorgeous colors all the year round -- the Spring azaleas blooming red in the snow, the Summer sea wavering blue in the breeze, the Autumn leaves painted in yellow covering volcanic traces, and the Winter woods shining white on the vast alpine snowscape. Hinggan League Arxan city is situated in the far eastern area of Inner Mongolia Autonomous Region. Its full name “Haren Arxan“ means “hot holy water“ in the Mongolian language. Arxan is a tourism city in the northern frontier with a blend of large forest, grand prairies, vast snowfield, heaven lake cluster, thermium, as well as volcanic cluster. It is a rare and unique ecotourism base filled with healthy sunshine, clean air and unspoiled green. Nestled close to the country＇s largest virgin forest, and known for its spring and ecological environment, Arxan is marveled at by many tourists as the purest land on earth. You cannot miss out the Autumn of Arxan. It is definitely the best with brightly-colored scenery full of emotions. Autumn in the northern part of the country comes earlier than the South. A September rain followed by the footprints of Autumn brings more colors to the once emerald green mountain and blooming grassland. Shutterbugs flock to see for themselves the marvel of splendid colors around the mountains and waters, many of whom have travel a long distance and even camp here only to capture a moment of the nature wonder. The silver birch turns golden, while the larch is still proudly green. You will find yourself drowned in the intoxicating red of the wild fruits as well as the glamour of flowers in full blown. And your heart will be lingering on the woods as it＇s time for the wild fruits to ripe. The picturesque Arxan in Autumn is indeed a fairyland only exists in a dream that satisfies all your fantasies. If it rains heavily on Saturday night, some elderly Chinese will say it is because Zhinu, or the Weaving Maid, is crying on the day she met her husband Niulang, or the Cowherd, on the Milky Way. Most Chinese remember being told this romantic tragedy when they were children on Qixi, or the Seventh Night Festival, which falls on the seventh day of the seventh lunar month, which is usually in early August. This year it falls on Saturday, August 2. Folklore Story As the story goes, once there was a cowherd, Niulang, who lived with his elder brother and sister-in-law. But she disliked and abused him, and the boy was forced to leave home with only an old cow for company. The cow, however, was a former god who had violated imperial rules and was sent to earth in bovine form. One day the cow led Niulang to a lake where fairies took a bath on earth. Among them was Zhinu, the most beautiful fairy and a skilled seamstress. The two fell in love at first sight and were soon married. They had a son and daughter and their happy life was held up as an example for hundreds of years in China. Yet in the eyes of the Jade Emperor, the Supreme Deity in Taoism, marriage between a mortal and fairy was strictly forbidden. He ordered the heaven troop to catch Zhinu back. Niulang grew desperate when he discovered Zhinu had been taken back to heaven. Driven by Niulang＇s misery, the cow told him to turn its hide into a pair of shoes after it died. The magic shoes whisked Niulang, who carried his two children in baskets strung from a shoulder pole, off on a chase after the empress. The pursuit enraged the empress, who took her hairpin and slashed it across the sky creating the Milky Way which separated husband from wife. But all was not lost as magpies, moved by their love and devotion, formed a bridge across the Milky Way to reunite the family. Even the Jade Emperor was touched, and allowed Niulang and Zhinu to meet once a year on the seventh night of the seventh month. This is how Qixi came to be. The festival can be traced back to the Han Dynasty (206 BC-AD 220). Traditionally, people would look up at the sky and find a bright star in the constellation Aquila as well as the star Vega, which are identified as Niulang and Zhinu. The two stars shine on opposite sides of the Milky Way. Customs In bygone days, Qixi was not only a special day for lovers, but also for girls. It is also known as the “Begging for Skills Festival“ or “Daughters＇ Festival.“ In this day, girls will throw a sewing needle into a bowl full of water on the night of Qixi as a test of embroidery skills. If the needle floats on top of the water instead of sinking, it proves the girl is a skilled embroiders. Single women also pray for finding a good husband in the future. And the newly married women pray to become pregnant quickly. Tradition transformed The love story of Niulang and Zhinu, and the Qixi Festival have been handed down for generations. Yet these ancient traditions and customs are slowly dying out. Many modern Chinese, particularly youngsters, seem to know more about St Valentine＇s Day on February 14, characterized by bouquets of roses, chocolates and romantic candlelight dinners, than they do about their home-grown day for lovers. Even Qixi is nowadays referred to as the “Chinese Valentine＇s Day.“ More and more young Chinese people begin to celebrate this day in a very similar way as that in western countries. Fewer people than ever will gaze at the heavens on Saturday to pick out the two stars shining bright on either side of the Milky Way, that is, if people even know on which day Qixi falls. There are ready reminders dotted about, in the form of big ads saying “Sales on Chinese Valentine＇s Day!“ in shops, hotels and restaurants. But few young women will mark the festival with their boyfriends, or take part in traditional activities to pray for cleverness. A large-scale of exhibition on the Silk Road opened to the public in the National Museum on Thursday. The exhibition displays more than 400 treasures from Shaanxi province, Gansu province and 14 other regions. It is largest scale exhibition that shows the history of the Silk Road in recent years. As APEC is going on in Beijing, the exhibit aims to show the world this brilliant section of history. The Silk Road is a series of trade and cultural transmission routes that were central to cultural interaction through regions of the Asian continent. It connected the West and East by linking traders, merchants, pilgrims, monks, soldiers, nomads, and urban dwellers from China and India to the Mediterranean Sea during various periods of time. I met my dear hubby in 2009 the second year I was in my school and it was the first year when he came here. We became colleagues. And there was nothing special happening during that year. He was just a kind and humble brother graduated from the same college as me. But we did not know each other till he became my colleague and his office desk was just in front of me. There was only a glass between us. So actually we could see each other when we both look up. But it is not the main reason that really draws us close. How we become close to each other was something seems quite natural. We went out to play badminton with other colleagues and we sometimes chatted for a while. He is a man of few words but somehow sometimes will say something really humorous. Then one day, to my great surprise, I found a pot of beautiful flower on my desk. It was just the flower I had talked about with my colleague the other day, and I thought it was her who put the flower there. But the truth is not. It was the humble guy sitting in front of me. He just simply said ,”well, I caught sight of this flower and thought that it’s beautiful and you may like it”. I wonder why I was moved because of these simple words and present. Maybe it is the sincerity and the true self that impress me. I thanked him and some colleagues walked past my desk would appreciate the beautiful flower and they noticed that something romance happened there. Then later on, there were some little surprises once in a while. Once, there was something wrong with my drawer and I had complained about it unconsciously. And he fixed it for me. Then the other day, he placed several pink diamond roses beside the flower with a piece of paper saying” I love you more than I can say! Diamond stands for marriage, rose stand for love. I hope you are mine, become my wife. You are the only girl who I really want to spend the rest of my life to stand by.” Although there were some grammar errors but I got what he meant. He meant so clear and so direct. And actually, I accepted him some days earlier. I was just waiting for him to break the ice. So finally, the common interests and the common understanding brought us together. Some people say the relationship and the feeling will change after getting hitched. You will find that love is no longer strong and there is always lack of passion and what’s worse you may find out many bad habits of your partner, which never appear when you are first in love before the marriage. It seems that many faults turn up after you truly living together and see each other’s face the moment you open your eyes in the early morning. But after almost 4 years from now, I do not feel any negative change in our relationship. During all these years, we know each other better and we become more tolerant about each other and I realize that if you really love a person you will accept his imperfect. And what is the qualification of a good husband? Once I was chatting with my colleague about this issue. And one of the qualifications I thought was that he must be a good cook. But to my surprise, my colleague said that a good husband must be someone who makes big money. What made her think so was quite beyond me. Maybe I am not sophisticated enough and what I want is just simple life style. The most enjoyable thing is that we go to the market to buy vegetables and other daily stuffs if we both have time. Maybe he is a housebound husband and I love housebound man. And there is another reason why We love going to the market. That is because we sometimes will get some surprises. The surprise is saving little fish which are disserted by the fish mongers. Because these fish are swellfish. Then we will collect them and set them free into the river. Swellfish are lovely creature. When they look like a little submarine when they are swimming in the water and look like a meat ball when you hold them in your hand. And if they are scared, they will swell and look like a little ball. Every time we see them swim away and we feel their happiness of returning home and this also make us cherish life. Maybe some will consider these behavior as something childish. Well, that is fine with us. We love doing these together and feel happy that is what it is all about. My dear hubby is a kind hearted man and he love animals just as I do. I am lucky to have someone who can be both my intimated soul mate and my forever friend.
