What are the advantages of the mutual authentication procedure A: The secret keys are transmitted over the airwaves B: Encrypted random numbers are transmitted instead of secret keys C: The token can be encrypted using any algorithm D: A random key (session key) can be calculated from the random numbers generated for the security of the subsequent data transmission

以下哪个命令用来创建加密密码以限制对 Cisco 路由器特权执行模式的访问（） A: RouterA（config）# encrypted password cisco B: RouterA（config）# password encrypted cisco C: RouterA（config）# enable password cisco D: RouterA（config）# enable secret cisco E: RouterA（config）# service-password encryption cisco

You need to include a disclaimer to all sent messages in your organization. Some of the users require message encryption.How do you make sure that disclaimer can be included in encrypted messages？（） A: Instruct the users to use IRM encryption method only B: Instruct the users to use S/MIME encryption method only C: Using command New-ExchangeCertificate cmdlet D: Using the Set-ExchangeServer cmdlet

Which of the following security policies is BEST to use when trying to mitigate the risks involved with allowing a user to access company email via their cell phone？（） A: The cell phone should require a password after a set period of inactivity. B: The cell phone should only be used for company related emails. C: The cell phone data should be encrypted according to NIST standards. D: The cell phone should have data connection abilities disabled.

为了防止信息被别人轻易窃取，需要把电码明文通过加密的方式变换成密文。变换规则如下：小写字母z变成a，其他字母变换成该字母ASCII码顺序后一位字母，比如o变换成p.要求：补充encrypt()函数 #include #include #define MAXLINE 100 void encrypt(char *); /*密码变换问题*/ int main() { char line[MAXLINE]; printf("Input the string:"); gets(line); encrypt(line); printf("After being encrypted: "); puts(line); return 0; } void encrypt(char*s) { }