A. By default cloned routes are turned on.  To turn cloned routes off issue the command：      #no -o tcp_pmtu_discover=0       #no -o udp_pmtu_discover=0       and add to the rc.net or rc.bsdnet file for next reboot
B. By default cloned routes are turned on.  To turn cloned routes off issue the command：        # no -o tcp_pmtu_discover=1        #no -o udp_pmtu_discover=1         and add to the rc.net or rc.bsdnet file for next reboot
C. By default cloned routes are turned on.  To turn cloned routes off issue the command：         #no -o ipforwarding=0         and add to the rc.net or rc.bsdnet file for next reboot
D. By default cloned routes are turned on.  To turn cloned routes off issue the command：         #no -o ipforwarding=1         and add to the rc.net or rc.bsdnet file for next reboot

A. The snmpd process is running at a fixed priority of 60
B. If both the syncd process and the portmap process become available to be run at the same time， then the syncd process would get scheduled first
C. If both the userprog process and the qdaemon process become available to be run at the same time， then the qdaemon process would get scheduled first
D. If both the syslogd process and the llbd process become available to be run at the same time， then the llbd process would get scheduled first

A. schedtune -t
B. vmtune -R
C. schedtune -r
D. schedtune -D

A. renice -n -20 {PID}
B. renice -n 20 {PID}
C. renice -n -40 {PID}
D. renice -n 40 {PID}

A. Too many nfsd’s running
B. Client and server with different buffer sizes
C. Bridges， routers or gateways are receiving too many fragmentated packets
D. Too few nfsd’s running