白发齐眉

Which of the following devices extends the network and has the capacity to store frames and act as a storage and forward device?

A.Router
B.Bridge
C.Repeater
D.Gateway

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A bridge connects two separate networks to form a logical network (e.g., joining an Ethernet and token network) and has the storage capacity to store frames and act as a storage and forwarding device. Bridges operate at the OSI data link layer by examining the media access control header of a data packet. Routers are switching devices that operate at the OSI network layer by examining network addresses (i.e., routing information encoded in an IP packet). The router, by examining the IP address, can make intelligent decisions in directing the packet to its destination. Repeaters amplify transmission signals to reach remote devices by taking a signal from a LAN, reconditioning and retiming it, and sending it to another. This functionality is hardware-encoded and occurs at the OSI physical layer. Gateways provide access paths to foreign networks.
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今天玩得开心

翡翠园还不错，原来在石化有这样一个公园

碰碰车和亲亲开的“你死我活”哈哈

晚上和亲亲逛超市，好多东西啊

今天晚上大雾，以至于回来都看不见路了

今天玩得很开心啊：）

顺便测试下魔法表情~~

自上次电脑崩溃到现在，好像没过多久。。。但是我已经把学工办的登录密码给忘了，以前几乎每天都要输，但是今天怎么输都不对了，汗～～
上个礼拜看了记忆的橡皮擦，之后，我的记性好像也变差了；
前两天看了《情书》，之后我就开始感冒了，到现在也没有好；
有点妖，我中妖了。。。

看了教务处网上，放假从2月8号开始到3月12号开始上课。
那么不正常的放假时间也只有上海大学了。
到下学期上课都过了三八妇女节了的说。。。
不过，回过来说，对我反正也没有什么影响。
在家过得已经忘了今天是星期几
经常有邻居问我：放假了啊？什么时候开学啊？
回答：一直在放假，啥时候开学不知道。。。
以后知道了，3月12日开学。。。

还是呛，很不好的，lg的感冒开始加重了，病毒开始转移了～
要过年了，大家还是要多注意身体
生病玩起来多不爽。。。
小高生日那天，用完了自己先前准备的餐巾纸之后，我几乎把在座所有人的餐巾纸都用完了
最后还好猩猩大发慈悲，去KTV的时候另外帮我买了2包，谢谢猩猩的要～
争取赶快恢复，我可不想16号同学聚会的时候，再把那一拨人的餐巾纸都用完。。。

今天的QQ可能有问题，登录了半个小时还在登。。
不管了，吃中饭去了，虽然，刚刚吃了早饭的一个包子～

The advantage of a bottom-up approach to the development of organizational policies is that the policies:

A. are developed for the organization as a whole.
B. are more likely to be derived as a result of a risk assessment.
C. will not conflict with overall corporate policy.
D. ensure consistency across the organization.

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A bottom-up approach begins by defining operational-level requirements and policies, which are derived and implemented as the result of risk assessments. Enterprise-level policies are subsequently developed based on a synthesis of existing operational policies. Choices A, C and D are advantages of a top-down approach for developing organizational policies. This approach ensures that the policies will not be in conflict with overall corporate policy and ensure consistency across the organization.

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