软考上午题练习笔记（一）

ゝ一纸荒年。 2024-04-21 19:28 118阅读 0赞

总线：（数地控）

数据总线 地址总线 控制总线

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0的补码标识唯一你

指令流水线的计算

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先计算一条指令耗费时间，再将后边剩下的n-1条指令的最长时间加上就是执行n条指令所需的时间

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osi模型，下层为上层服务

主要考这几层

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采用单钥密码的加密方法，同一个密钥可以同时用来加密和解密，这种加密方法称为对称加密，也称为单密钥加密。

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[7219c60df946488dbb989ec5d4807f57.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/21/14ca7b3871a34635bba122e25131c6c0.png
[b556b82bee2940fa82a35049be7e5a1a.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/21/7a2c46d34aa443c8b9cb8726a937120e.png
[310f02d505354f4aa885599f71d44535.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/21/3503aa613c7b4265b797c5ea4e6778bd.png
[03d75b17f8b84e57943893f0ee73886f.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/21/04136dafb83b4191bc5695dfff190693.png
[d5fbda33eb73481083fab2dae32c5206.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/21/d5c04a48e4ed4a85acae277e10fb5f88.png
[93c2e8c6d3f24512b78702a6a5e460d9.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/21/a492ceb3f11a4c3f8ca6b09e2348c82d.png
[5cffd2545bcc4e20bf1e088cdf41acd0.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/21/0b60998b43e3428589400490e144a1b8.png
[0469e9b5f79642bf9170b49b5564ab36.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/21/670fd94ae939435f8cc58c0905cfea48.png
[e8015f6ea8e74316af492b6c96bb5764.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/21/e5decc50ea8445b78254fdd9d172e291.png