You've configured an interface with an IP address and commited the change. You then commited 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?（）

单项选择题When attepting to view the OSPF routes in the routing table, you issue the command show route table inet but no OSPF routes are displayed. What is the problem?（）

A. The OSPF routes are located in the inet 4 routing table
B. THe OSPF routes are located in the inet 0 routing table
C. The OSPF routes are located in the inet 2 routing table
D. The OSPF routes are located in the inet 4.3 routing table

多项选择题Which two external authentication methods are supported by the Junos OS for user authentication?（）

A. RADIUS
B. KERBEROS
C. LDAP
D. TACACS+

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

A. Accept all local routes
B. Accept all RIP routes
C. Accept no routes
D. Accept all direct routes

单项选择题What is the role of route preference?（）

A. It is used as a tie breaker when the same prefix is available through multiple sources
B. It is used to determine which routes to accept into the routing table
C. It is used to select the best route between multiple equal-cost paths
D. It is used to select which routing table to use for forwarding

单项选择题What is a valdi multicast MAC address?（）

A. 00:90:69:9F:EA:46
B. FF:FF:FF:FF:FF:FF
C. 01:00:5E:28:12:95
D. 99:99:99:99:99:99