净资产收益率是用来反映企业盈利能力的比率，其计算式为（)。A．（净利润/注册资本)×100%B．（平均所

A. Three physical interfaces are redundant.

B. You must define an additional Redundancy Group.

C. node 0 will immediately become primary in the cluster.

D. You must issue an operational command and reboot the system for the above configuration to take effect.

A. Apply the method list to an interface

B. Specify the default method list and apply it to the interface

C. Enable AAA

D. Define a method list

A．cfgmgr -a

B．cfgmgr -v

C．cfgmgr -x

D．cfgmgr -o

A. Once saved, a rescue configuration is loaded using the rollback 0 command.

B. The rescue configuration must contain the minimal elements necessary to restore network connectivity.

C. A minimal rescue configuration is defined by default.

D. A rescue configuration must include a root password.

A. Additional DHCP options will be imported from another DHCP server.

B. The DHCP server pools need to be bound to an interface to operate.

C. This configuration will provide IP configuration information to two different su bnets.

D. Additional DCHP option information needs to be imported from another DHCP server.

E. If the router hands out all the addresses in pool 1, then it will supply addresses from pool 2.

A. set

B. copy candidate active

C. apply-config

D. commit

A. Logical network diagram

B. History logs

C. Baseline configurations

D. Wiring schematics

A. It must be issued before the network command to enable the OSPF pr ocess for IPv6.

B. It must be issued after the network command to enable the OSPF process for IPv6.

C. It must be issued in router global configuration mode to enable the OSPF process for IPv6.

D. It must be issued in interface configuration mode to ena ble the OSPF process for IPv6.

A. (config-if)# dialer-group 1

B. (config-if)# dialer-list 1

C. (config-if)# dialer map 1

D. (config-if)# dialer-route 1

A. It must include a root password.

B. It is rollback file number 50, and you can recover it by issuing rollback 50.

C. It is created by issuing request system configuration rescue save.

D. It is updated automatically when you commit.