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Applications put computers to practical business(67), but below the(68)it's the heart of an operating system-the kernel-that provides the technical wizardry to juggle multiple program, connect to networks and store(69).A traditional kernel provides all th

题目

Applications put computers to practical business(67), but below the(68)it's the heart of an operating system-the kernel-that provides the technical wizardry to juggle multiple program, connect to networks and store(69).

A traditional kernel provides all the functions for applications. The kernel(70)memory, I/0 devices and parcels out processor time.

The kernel also supports security and fault(71), which is the ability to recover automatically when parts of the system fail.

A．used

B．use

C．apply

D．applied

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更多“Applications put computers to practical business(67), but below the(68)it's the heart of a ”相关问题

  • 第1题：

    The kernel is the(66)of an operating system such as Windows98, Windows NT, Mac OS or Unix. The kernel provides basic services for the other parts of the operating system,(67)it possible for it to run several programs at once(multitasking), read and write files and connect to networks and peripherals. Applications and utility programs use the services provided by the kernel to provide practical business functionality.

    In operating systems such as Windows or most versions of Unix, the kernel(68)everything except application and utility programs.

    In microkernel operating systems such as Digital Unix and Apples forthcoming Mac OS Server, the kernel(69)supports only multitasking and memory management. Other services such as applications, utilities and the user interface support device drivers, API and graphics which all(70)outside the microkernel.

    A．nucleus

    B．center

    C．core

    D．heart


    正确答案：C

  • 第2题：

    Fast(66)is also referred to as 100BASE-T or 802.3u and is a communications(67)that enables computers on a local-area network to share information with one another at(68)of 100 million bits per second instead of the standard 10 million BIT/S。

    A．Ethernet

    B．Inernet

    C．network

    D．net


    正确答案：A

  • 第3题：

    S盒是DES中唯一的非线性部分，DES的安全强度主要取决于S盒的安全强度。DES中有（67）个S盒，其中（68）。

    A.2
    B.4
    C.6
    D.8

    答案：D
    解析：
    S盒变换是一种压缩替换，通过S盒将48位输入变为32位输出。共有8个S盒，并行作用。每个S盒有6个输入，4个输出，是非线性压缩变换。

  • 第4题：

    67-68

    第67题：


    正确答案：A

  • 第5题：

    67～68

    第 67 题 乳香具有的功效是


    正确答案：C

  • 第6题：

    定义数组char s[10]={65,66,67,68,69};，则执行输出语句cout＜＜s＜＜endl;会显示：ABCDE。


    D

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