职业技能实训一 计算机网络技术（网络管理）《计算机网络》练习题答案 注意：
选项出题顺序是不一样的 所以要按清楚答案 下载文档之后 使用Ctrl+F 把需要搜的问题输入到里面搜索就可以了 复制部分问题文字上去就可以，不需要都复制 搜索功能更快找到答案（给予不会操作的提醒） 不保证你所以的问题这里都有答案 可以保证90%在这里面 第1题: Windows网络监视器可以捕获和显示运行Windows Server 2000 (2003)的计算机的一切操作。

第2题: 网络监视器复制帧的过程称为捕获。

第3题: 计算机病毒不会导致计算机的硬件烧毁。

第4题: 安装在计算机上的防病毒软件不具备在线升级功能。

第5题: 防病毒软件的特征扫描就是将病毒信息都保存在病毒库中，当发现带有病毒特征的文件时，便对其进行清除，或删除或隔离染毒文件。

第6题: 计算机病毒不可以大量地自我“繁殖”。

第7题: 安装了杀毒软件就不用安装实时监控软件或网络防火墙，也可有效防范病毒入侵计算机。

第8题: 不论哪一种病毒在侵入计算机后，都会对系统及程序造成不同程度的影响。

第9题: 不论哪一种病毒在侵入计算机后，都会对系统及程序造成不可挽回的后果。

第10题: 计算机病毒就是一种附加到计算机内部的重要区域中的恶意代码。

第11题: 计算机病毒可以大量地自我“繁殖”。

第12题: 病毒在取得系统控制权后，不会马上进行破坏，而是大量繁殖自己。

第13题: 引导型病毒是将其指令插入到磁盘的引导扇区内的病毒。

第14题: 程序型病毒是将病毒代码附加到可执行文件中，主要有扩展名为．COM、．EXE、．DLL等的文件。

第15题: 宏病毒是破坏计算机宏观控制的病毒，如CPU的运算和处理速度。

第16题: 宏病毒并不会感染程序文件，它的目标是文档文件。

第17题: 计算机病毒不可以大量地自我“繁殖”。

第18题: 安装了杀毒软件就不用安装实时监控软件或网络防火墙，也可有效防范病毒入侵计算机。

第19题: 不论哪一种病毒在侵入计算机后，都会对系统及程序造成不可挽回的后果。

第20题: 使用回送地址可以实现对本机网络协议的测试或实现本地进程间的通信。

第21题: 如果配线架上面所有的线缆都没有做标识，会给测试带来很大的不便。

第22题: 集线器从一个端口接收到数据信号后将其转发到其他所有处于工作状态的端口，每台计算机都可收到这些数据。

第23题: 与集线器某个端口相连的计算机，可以随时发送信息给另一个与集线器端口相连的计算机。

第24题: 基于端口划分VLAN的优点是定义VLAN成员时只要将所有的端口都定义一下就可以了。

第25题: 基于MAC地址划分VLAN的方法的最大优点就是当用户物理位置移动时，VLAN不用重新配置。

第26题: 基于网络层划分VLAN的方法的缺点是效率低。

第27题: 路由器的工作就是接收信息分组，根据当前网络的情况将其导向最有效的路径。

第28题: 路由器的路由选择表是固定不变的。

第29题: 路由器互连的是多个不同的逻辑网络，每个逻辑子网具有不同的网络地址。

第30题: 路由器连接的物理网络只能是异类网络。

第31题: 路由器接收信息分组并读取信息分组中的目的网络地址，若路由器没有直接连接到目的网络上，则停止数据发送。

第32题: 为了确保路由选择的正确无误，路由选择表必须及时更新，并准确地反映互联网中的当前情况。

第33题: 静态路由器需要手工将路由选择信息输入到路由选择表中，故很难维护。

第34题: 动态路由器需要手工将路由选择信息输入到路由选择表中，故很难维护。

第35题: 动态路由器能够在网络上自动配置，在没有管理员干预的情况下可创建并维护路由选择表。

第36题: 路由器比网桥和其他网络互连设备有更强大的异种网络互连能力和更好的安全性。

第37题: 两台连在不同子网上的计算机需要通信时，不一定必须经过路由器转发。

第38题: 路由器接收信息分组并读取信息分组中的目的网络地址，如果它不知道下一跳路由器的地址，则将包丢弃。

第39题: 当数据包通过网络传送时，它的物理地址是变化的，但它的网络地址是不变的。

第40题: 路由器只能连接相同网络拓扑结构的子网。

第41题: 由于路由器不在子网之间转发广播信息，具有很强的隔离广播信息的能力。

第42题: 路由器可以在广域网中使用，还可以在大型复杂的互联网中使用，但不能在局域网中使用。

第43题: 千兆以太网一般只用在主干网上。

第44题: UPS安装质量的好坏直接影响UPS系统的正常运行。

第45题: UPS必须良好接地。接地电阻小于lOQ，且交流串扰小于12V。

第46题: 同轴电缆是目前的计算机网络电缆中最常用的一种缆线。

第47题: STP是非屏蔽双绞线电缆的英文缩写。

第48题: 屏蔽双绞线电缆带有附加的屏蔽层，它起到保护信号的作用。

第49题: 屏蔽双绞线电缆只能用于令牌环网络，不能用于其他网络中。

第50题: 3类非屏蔽双绞线电缆适用于lOOBase-T4以太网。

第51题: 5类非屏蔽双绞线电缆的传输信道带宽达到1000 MHz。

第52题: 由于6类双绞线电缆适用于千兆以太网，所以连接器已不再是RJ-45了。

第53题: 总线的一端必须要有终止器，以消除反射信号。

第54题: 细缆传输距离最大只有185 m。

第55题: 光纤可以接受小于20。的弯曲。

第56题: 多模光纤比单模光纤性能更好。

第57题: 如果把“最好”的网络产品组合起来进行布线，就一定会使网络信号衰减幅度达到最小，达到最佳通信效果。

第58题: 从双绞线中分出一对线来连接电话，或同时把两对线连接到两个网络接口模块中，这样做就能提高线缆的利用率。

第59题: 在某计算机下放一台集线器，然后布线，直到达到5类线的最大传输距离，再加第二台集线器，一直串接下去，这样做节省了网线，布线也方便，而且不会影响通信效果。

第60题: 调制解调器，它的英文为：Modem。

第61题: 网桥工作在网络层。

第62题: 路由器工作在数据链路层。

第63题: 中继器工作在物理层。

第64题: 集线器是一个共享设备，网络中所有用户共享一个带宽。

第65题: 连接在交换机上的网络设备独自享有全部的带宽。

第66题: 如果网络的利用率超过了40%，并且碰撞率大于10%，网络就可以选用集线器。

第67题: 路由器的主要工作就是为经过路由器的每个数据包寻找一条最佳传输路径,并将该数据包有效地传送到目的站点 第68题: 服务终端主要是指在网络上取得服务的终端设备。

第69题: 客户终端指在网络上提供服务的终端，这主要是指网络服务器。

第70题: 集线器属于传输终端。

第71题: 路由器的第一次设置必须通过Console端口使用配置专用连线直接连接至计算机的串口，利用终端仿真程序进行路由器本地设置。

第72题: Windows Server 2000 (2003)网络监视器的安装应该在“控制面板”窗口的何处进行：( )。

第73题: 按实现原理的不同将防火墙分为( )三类。

第74题: 设计建筑群子系统时主要考虑的问题可能是( )。

第75题: 组建局域网可以用集线器，也可以用交换机。用交换机连接的一组工作站( )。

第76题: 使用Traceroute命令测试网络时，可以( )。

第77题: 常用来测试网络是否连通的命令是( )。

第78题: 在( )输入“ping”命令，可进行网络连通测试。

第79题: 病毒是一种( )。

第80题: 网络监视器中的筛选程序的筛选方式主要有( )。

第81题: 对网络信息安全构成安全威胁的主要有( )等方面。

第82题: 网络管理员对公司内的员工进行网络知识及使用方法的培训，以减少由于人为的误操作而导致的网络故障，培训的项目主要包括( )等方面。

第83题: 下列属于驱动程序作用的有( )。

第84题: 下列属于防病毒软件的有( )。

第85题: 防病毒软件查找病毒的基本方法有( )。

第86题: 配置管理包括( )三个方面内容。

第87题: 安全管理包括( )。

第88题: 网络性能优化的目标有( )。

第89题: 路由器最基本的功能是( )。

第90题: 路由器必须具备的两个基本功能是( )。

第91题: 计算机病毒具有( )。

第92题: 当计算机被感染病毒后，一般可能会出现的症状有( )。

第93题: 按照病毒感染的内容和逃避检测的方式，它们可分为( )。

第94题: 病毒侵入计算机的途径主要有( )。

第95题: 有效防止病毒入侵计算机的方法有( )。

第96题: 常用的网络测试工具有( )。

第97题: 下列属于网络系统软件功能的有( )。

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.