A. show ip route ospfB. show ospf routesC. show route p……

多项选择题What are two purposes of a forwarding class?（）

A. to rewrite the ToS bits in the IP header
B. to classify traffic
C. to identify traffic that should receive commom treatment
D. to assign traffic to output queues

单项选择题Random early detection (RED) is associated with which class of service component?（）

A. classification
B. policing
C. queueing
D. scheduling

单项选择题Which configuration causes RIP-learned routes to be advertised to other RIP neighbors?（）

A. set protocol rip no-passive
B. top edit policy-options policy-statement demo   set term 1 from protocol rip   set term 1 then accept   top set protocols rip group internal export demo
C. set protocols rip advertise m-out
D. top edit policy-options policy-statement demo   set term 1 from active routes   set term 1 then accept   top set protocols rip group internal export demo

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

A. show interfaces alarms
B. show interfaces terse
C. show alarms extensive
D. show interfaces extensive

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