A network administrator wants to verify the active alarms on interface so-0/0/0. Which command displays this information?（）

多项选择题Which two characteristitcs describe the UDP protocol?（）

A. limited error checking
B. defined timers
C. no recovery mechanisms
D. three-way handshake

单项选择题Which command will delete the current rescue configuration?（）

A. user@router# system delete configuration rescue
B. user@router> request system configuration rescue delete
C. user@router# delete rescue configuration
D. user@router> file delete rescue-configuration

单项选择题Using the routing table shown in the exhibit, what will be the next-hop IP address used for destination IP address 192.168.1.1? （）

A. 10.20.14.130
B. 10.18.1.1
C. 10.20.14.131
D. 10.20.106.10

单项选择题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?（）

A. 510
B. 1022
C. 2046
D. 8190

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