Password is a(n)(71)series of characters that enables a user(72)a file, computer or program. On multi - user systems,(73)user must enter his or her password(74)the computer will respond to commands. The password helps ensure that unauthorized users do not

题目

Password is a(n)(71)series of characters that enables a user(72)a file, computer or program. On multi - user systems,(73)user must enter his or her password(74)the computer will respond to commands. The password helps ensure that unauthorized users do not access the computer. In addition, data files and programs may require a password.

Ideally, the password should be something(75)could guess. In practice, most people choose a password that is easy to remember, such as their name or their initials. This is one reason it is relatively easy to break into most computer system.

A.obvious

B.secret

C.important

D.easy


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  • 第1题:

    2、已知某系统登录的用户名和密码分别为"python"和"123456",则依次执行语句user=input("请输入用户名:")和password=input("请输入密码:")后,可通过以下哪个表达式对用户是否能成功登录进行判断:

    A.user=="python" && password=="123456"

    B.user=="python" and password=="123456"

    C.user=="python" or password=="123456"

    D.user=="python" || password=="123456"


    C

  • 第2题:

    4、系统中有用户 user1 和 user2,同属于 users 组。在 user1 用户目录下有一文件 file1,其本身权限为 644,如果要允许 user2 用户修改 user1 用户目录下的 file1 文件,则应修改 file1 的权限为什么?()

    A.744

    B.664

    C.646

    D.746


    664

  • 第3题:

    以下那一个选项是查询数据方法:

    A.User.objects.filter(username='wangwu').get(pk=1)

    B.User.objects.filter(id=user_id).update(password='9999')

    C.User.objects.all().delete()

    D.User.objects.get(pk=user_id).delete()


    query()

  • 第4题:

    系统中有用户 user1 和 user2,同属于 users 组。在 user1 用户目录下有一文件 file1,其本身权限为 644,如果要允许 user2 用户修改 user1 用户目录下的 file1 文件,则应修改 file1 的权限为什么?()

    A.744

    B.664

    C.646

    D.746


    664

  • 第5题:

    已知某系统登录的用户名和密码分别为"python"和"123456",则依次执行语句user=input("请输入用户名:")和password=input("请输入密码:")后,可通过以下哪个表达式对用户是否能成功登录进行判断:

    A.user=="python" && password=="123456"

    B.user=="python" and password=="123456"

    C.user=="python" or password=="123456"

    D.user=="python" || password=="123456"


    139

  • 第6题:

    下面选项中, user表的用户列包括

    A.Host列

    B.User列

    C.Password列

    D.email列


    Host列;User列;Password列