You have been asked to use a 23-bit network mask to segment the network block 209.18.12.0, How many usable host address will there e per subnet?（）

单项选择题Which statement is true about the routing table?（）

A. The routing table exists in the control plane only
B. The routing table exists in the control plane and the forwarding plane
C. The routing table contains both active and inactive routes
D. The routing table is stored on compact flash

单项选择题You want to log into the router and make a configuration change.After loggin in as the root user, what is the next command you must enter?（）

A. enable
B. configure
C. edit
D. cli

单项选择题What is the default export routing policy for EBGP?（）

A. Accept all active BGP routes
B. Accept all BGP routes
C. Accept no routes
D. Accept all active IGP routes

单项选择题Referring to the exhibit, which command would you use to add an additional address to the ge-0 0 9 unit 0 interface?（）

A. [edit interfaces ge-0/0/9 unit 0]   user@router# set family inet address 192.168.100.1/24
B. [edit interfaces ge-0/0/9 unit 0]   user@router# set family inet secondary-address 192.168.100.1/24 secondary
C. [edit interfaces ge-0/0/9 unit 0]   user@router# set family inet address 192.168.100.1/24 secondary
D. [edit interfaces ge-0/0/9 unit 0]   user@router# set family inet address-secondary 192.168.100.1/24

多项选择题What are two valid actions for routing policy?（）

A. discard
B. next policy
C. accept
D. ignore