更多"Which commands is necessary to perm"的相关试题:
[单项选择]Which commands is necessary to permit SSH or Telnet access to a cisco switch that is otherwise configured for these vty line protocols?（）
A. transport type all
B. transport output all
C. transport preferred all
D. transport input all
[单项选择]Which commands is necessary to permit SSH or Telnet access to a cisco switch that is otherwiseconfigured for these vty line protocols？（）
A. transport type all
B. transport output all
C. transport preferred all
D. transport input all
[多项选择]Which three advanced permit actions within security policies are valid?（） (Choose three.)
A. Mark permitted traffic for firewall user authentication.
B. Mark permitted traffic for SCREEN options.
C. Associate permitted traffic with an IPsec tunnel.
D. Associate permitted traffic with a NAT rule.
E. Mark permitted traffic for IDP processing.
[单项选择]Which of the following will permit an operator to retrieve console log output from the command line?（）
A. lscons -l
B. cat /var/conslog
C. alog -t console -o
D. lslog /var/adm/conslog
[多项选择]Which two login-class permissions could permit a user to view the system hierarchy of the active configuration? （）
A. system permision
B. view-configuration permission
C. network permission
D. super-user permission
[单项选择]What must an administrator do to prevent new telnet users from connecting to the system?（）
A. rmdev -l /dev/pts
B. touch /etc/nologin
C. chdev -l sys0 -a nologin
D. chuser -a login=false ALL
[多项选择]Which three advanced permit actions within security policies are valid？（）
A. Mark permitted traffic for firewall user authentication.
B. Mark permitted traffic for SCREEN options.
C. Associate permitted traffic with an IPsec tunnel.
D. Associate permitted traffic with a NAT rule.
E. Mark permitted traffic for IDP processing.
[单项选择]When configuring SSH， which is the Cisco minimum recommended modulus value？（）
A. 2048 bits
B. 1024 bits
C. 256 bits
D. 512 bits
[多项选择]SSH协议作为一种安全的远程登录协议，被广泛应用，关于SSH正确的是（）。
A. SSH采用额外的加密技术确保登录安全性
B. SSH采用TCP端口22传输数据，端口23建立连接
C. SSH还可以为FTP提供安全的传输通道
D. SSH及Secure Shell，可以采用DES认证方式保证数据的安全性
[多项选择]SSH协议作为一种安全的远程登录协议，被广泛应用，关于SSH的描述正确的是（）。
A. SSH采用额外的加密技术确保登录安全性
B. SSH采用TCP端口22传输数据，端口23建立连接
C. SSH还可以为FTP提供安全的传输通道
D. SSH即Secure Shell，可以采用DES认证方式保证数据的安全
[单项选择]如何启动ssh服务（）。
A. service sshd status
B. /etc/init.d/ssh status
C. service ssh statrt
D. service sshd start
[单项选择]SSH默认使用TCP端口号（）
A. 20
B. 21
C. 22
D. 23
[单项选择]SSH协议可以用来代替（）。
A. SSL
B. TELNET
C. DES
D. AES
