单项选择题MIMD systems can be classified into
16
-oriented systems, high-availability systems and response-oriented systems.
The goal of 16 -oriented multiprocessing is to obtain high 16 19 minimal computing cost. The techniques employed by multiprocessor operating systems to achieve this goal take advantage of an inherent processing versus input/output balance in the workload to produce 20 and 21 . loading of system 22
The goal of 16 -oriented multiprocessing is to obtain high 16 19 minimal computing cost. The techniques employed by multiprocessor operating systems to achieve this goal take advantage of an inherent processing versus input/output balance in the workload to produce 20 and 21 . loading of system 22
A.resource
B.resources
C.source
D.sources
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A.DES的算法是公开的
B.DES使用的密钥较短
C.DES中除了S盒是非线性变换外,其余变换均为线性变换
D.DES的算法简单
3.单项选择题如果主存容量为16MB,且按字节编址,表示该主存地址至少应需要______位。
A.16
B.20
C.24
D.32
5.单项选择题MIMD systems can be classified into
16
-oriented systems, high-availability systems and response-oriented systems.
The goal of 16 -oriented multiprocessing is to obtain high 16 19 minimal computing cost. The techniques employed by multiprocessor operating systems to achieve this goal take advantage of an inherent processing versus input/output balance in the workload to produce 20 and 21 . loading of system 22
The goal of 16 -oriented multiprocessing is to obtain high 16 19 minimal computing cost. The techniques employed by multiprocessor operating systems to achieve this goal take advantage of an inherent processing versus input/output balance in the workload to produce 20 and 21 . loading of system 22
A.balance
B.balanced
C.balances
D.balancing
6.单项选择题DBMS是位于
11
之间的一层数据管理软件。关系数据库的概念模式是
12
的集合,外模式是 (3) 的集合。用符号
表示的关系操作称为 13 操作。
表示的关系操作称为 13 操作。
A.左外连接
B.右外连接
C.自然连接
D.完全外连接
7.单项选择题下述任务中,不属于软件工程需求分析阶段的是______。
A.分析软件系统的数据要求
B.确定软件系统的功能需求
C.确定软件系统的性能要求
D.确定软件系统的运行平台
10.单项选择题DBMS是位于
11
之间的一层数据管理软件。关系数据库的概念模式是
12
的集合,外模式是 (3) 的集合。用符号
表示的关系操作称为 13 操作。
表示的关系操作称为 13 操作。
A.二维表
B.基本表
C.视图
D.文件
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