如果发生了介质损坏并且已经丢失了PIG数据库的所有控制文件,在以下有关PIG数据库的陈述中,正确的是()
A.数据库可以加载.但不能开启
B.在开启这个数据库之前必须对该数据库进行恢复
C.必须开始这个数据库并使用CREATECONTROLFILE语句创建一个新的控制文件
D.无法恢复这个数据库
- · 有4位网友选择 B,占比40%
- · 有3位网友选择 A,占比30%
- · 有3位网友选择 C,占比30%
A.数据库可以加载.但不能开启
B.在开启这个数据库之前必须对该数据库进行恢复
C.必须开始这个数据库并使用CREATECONTROLFILE语句创建一个新的控制文件
D.无法恢复这个数据库
A.a,d,f
B.c,e,f
C.a,b,e,f
D.a,e,f
A.Little Pig will get a payoff of 1 and Big Pig will get a payoff of 6.
B.Little Pig will get a payoff of 3 and Big Pig will get a payoff of 7.
C.Both pigs will wait at the trough.
D.The pigs must be using mixed strategies.
Big Pig and Little Pig have two possible strategies, Press the Button, and Wait at the trough. If both pigs choose Wait, both get 2. If both pigs press the button then Big Pig gets 7 and Little Pig gets 3. If Little Pig presses the button and Big Pig waits at the trough, then Big Pig gets 10 and Little Pig gets 0. Finally, if Big Pig presses the button and Little Pig waits, then Big Pig gets 6 and Little Pig gets 1. In Nash equilibrium,
A、Little Pig will get a payoff of 1 and Big Pig will get a payoff of 6.
B、Little Pig will get a payoff of 3 and Big Pig will get a payoff of 7.
C、Both pigs will wait at the trough.
D、The pigs must be using mixed strategies.
为了保护您的账号安全,请在“简答题”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!