On which operating system is the Junos OS based?（）

A. OSPF SPF daemon (ospfd)
B. SNMP daemon (snmpd)
C. BGP daemon (bgpd)
D. Routing protocols daemon (rpd)

A. All platforms running the Junos OS have identical factory-default configurations.
B. All platforms running the Junos OS use the IP2 processor for longest-match lookup.
C. All platforms running the Junos OS use the same source code base.
D. All platforms running the Junos OS use FXP1 for communication between control and forwarding planes.

A. All platforms running the Junos OS use the same source code base
B. All platforms running the Junos OS use the same PFE
C. All platforms running the Junos OS use a hard drive to optimize syslog data storage
D. All platforms running the Junos OS use a separate process with protected memory space for each routing protocol