Choose the best answer from the options below to complete the following sentence. Law firms and accounting firms can provide ________.

A . Following the traffic path B . Top-down C . Comparing configurations D . Bottom-up E . Divide and conquer F . Examine SLA

A . Problem report B . Problem collaboration C . Problem diagnosis D . Problem resolution E . Problem documentation F . Probiem authenticatio

A . Only when there is a duplicate IP address caused by a combination of static and dynamic IPaddress allocations B . On each router that exists between the client and the server C . Only when a router separates the client from the server D . Only if the DHCP sever issues a DHCPNAK to the initial request E . Only when the client is on the same subnet as the server F . Only when the DHCP pool is out of IP addresse

A、Because the roads were damaged. B、Because the bridges were damaged. C、Because the communication systems were damaged. D、Because the villagers were in a rural mountainous area.

(66) is a protocol that a host uses to inform. a router when it joins or leaves an Internet multicast group． (67) is an error detection code that most data communication networks use． (68) is an interior gateway protocol that uses a distance vector algorithm to propagate routing information． (69) is a transfer mode in which all types of information are organized into fixed form. cells on an asynchronous or non -periodic basis over a range of media. (70) is an identifier of a web page. A．SMTP B．ICMP C．RARP D．IGMP

Microwave communication uses high-frequency(71)waves that travel in straightlines through the air. Because the waves cannot(72)with the curvature of the earth, they can be(73)only over short distance. Thus, microwave is a good(74)for sending data between buildings in a city or on a large college campus. For longer distances, the waves must be relayed by means of "dishes" or(75). These can be installed on towers, highbuildings, and mountain tops. A．optical B．radio C．electrical D．magnetic

(66) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication. (67) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols. (68) functions with two layers of protocols. It Can connect networks of different speeds and can be adapted to an environment as it expands. (69) is the popular LAN developed under the direction of the IEEE 802.5. (70) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI. A．The MAC address B．The IP address C．The subnet address D．The virtual address

A．special B．strange C．important D．wrong

A．She’s very intelligent B．She’s very attractive C．She’s very easygoing D．She’s very special

TEXT A Let me speak first to parents. You are the ones who plant, or fail to plant, the seeds of character in your children. Try from the beginning to put into your children's minds the capacity to feel shame by letting them know that, just as there are actions for which they can win praise, so there are others ________ lying, cheating, stealing________ that are unacceptable and for which they will be punished. As parents, you are not alone in your efforts to form. character. Organizations such as the Boy Scouts and Girl Scouts teach accountability and strengthen it with pressure of equals. Churches are also strong helpers. I remember clearly an event from my childhood. In our church's Sunday school playroom was a set of little lead cowboys and Indians. One day, I took one of them home, and that night my brother saw me playing with it. "I know where you got that," he said. "You stole it from the church. ,, Stole it! From the church! Those words hit me like a thunderbolt. The anger of God, my mother's anger, the scorn of the world rose up like a terrifying wave in my mind. I ran a mile and a half to return the figure and all the way back home, where my mother put me to bed with a couple of beats for "cattin around " (到处乱跑). I never told her why I had left the house; I was too ashamed. Shame led straight to accountability, and I never again took anything that wasn't mine. What about teachers？ To them I'd say: your classroom is a small society. Don't excuse bad behavior. Get students to impose standards upon one another, and work to persuade the school administration to become firmer about discipline. I've heard of high schools where the first time a student is caught with drugs, he's warned; the second time, he may be kept from school temporarily; the third, possibly driven away. To the principals of such schools I would say, "Why not suspend students the first time？" And I would quote a religious leader's words: "Punish severely the first offender, for in him lies the greatest hope of reform. " Finally, a wise teacher might tell a high-school class: "If you choose to play with drugs, the police may never catch you. But your body is responsible to the laws of chemistry and biology. " What about law enforcement？ If I could say just one thing to the designers of that system, it would be: restore fair, swift, sure punishment as one of the key supporters of accountability. There is nothing unreasonable about just punishment, but you'd never know it from watching our law carried out today. Criminals don't fear the law, because in most cases its punishment is so slow and weakened that any preventing effect is lost. Which of the following is NOT true according to the author？ [A] Parents are very important in helping form. the children's character. [B] One can have more than one way to shape character. [C] Punishment should be carried out quickly. [D] The author ran a mile and a half to avoid the shower of scolding.

A．He has his own idea about his future jo B．He is interested in his parents’ careers． C．He thinks Peter is not old enough to make his own decisions． D．He is interested in the work itself rather than the money he will earn．

（）is a six bytes OSI layer 2 address which is burned into every networking device that provides its A、 The hub B、 The bridge C、 The router D、 The proxy