You configured an interface with an IP address and committed the change. You then committed a change that added an exception in a firewall filter to allow this network through the filter. You realize that this work was done on the wrong router. How do you undo all these changes?（）

多项选择题Which two statements are true when using the configure exclusive CLI command?（）

A. Multiple users can enter configuration mode and have their own private configuration.
B. When a user commits, only the user's changes are committed.
C. A message indicates which other users are in configuration mode and what portion of the configuration they are editing.
D. Only a single user can edit the configuration.

多项选择题Which two statements apply when a user has entered private configuration mode by typing configure private?（）

A. All users have their own active configuration.
B. All users have their own private candidate configuration.
C. When a user commits, all nonconflicting changes made by all users are committed.
D. When a user commits, only the user's own changes are committed.

单项选择题Which CLI keyboard sequence allows you to move the cursor to the beginning of the line?（）

A. Ctrl+e
B. Ctrl+p
C. Ctrl+w
D. Ctrl+a

多项选择题You are at the top of the hierarchy and must configure OSPF on interface so-0 0 0 unit 100. Which two achieve this result?（）

A. set protocols   setospf area 0   set interface so-0/0/0.100
B. set protocols ospf area 0 interface so-0/0/0.100
C. edit protocols ospf interface so-0/0/0.100
D. edit protocols ospf area 0   set interface so-0/0/0.100

单项选择题You are configuring a new BGP neighbor and want to view the configuration of interface ge- 0 0 0.42.Which command do you use to achieve this result?（）

A. [edit protocols bgp group external]   user@router# set interfaces ge-0/0/0.42
B. [edit protocols bgp group external]   user@router# edit show interfaces ge-0/0/0.42
C. [edit protocols bgp group external]   user@router# top show interfaces ge-0/0/0.42
D. [edit protocols bgp group external]   user@router# show interfaces ge-0/0/0.42