An administrator is unable to ping any address on the 10.0.19.0/24 subnet. To identify the problem, the administrator uses the command shown in the exhibit.
Which step should be taken to solve the problem?（）

单项选择题When configuring more than one archival site, which statement is true?（）

A. The system will first attempt the transfer using the URL configured last
B. The system will transfer the configuration to each archival site
C. The system will not transfer to a secondary site unless the previous site fails
D. The system will transfer using secure copy protocl (SCP) before attempting FTP

单项选择题You have a network containing 120 routers. You must establish and maintain connectivity between the loopback interfaces of all routers. Because of the critical services using the network, you need redundancy and fast failover. Which routing protocol should you use in this scenario?（）

A. OSPF
B. RIP
C. BGP
D. static

多项选择题What are two Junos processes?（）

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

单项选择题Your network administrator has asked you to view the real-time interface usage on ge-0 0 0.Which command whould be used?（）

A. monitor interface ge0/0/0
B. traceoptions interface ge-0/0/0
C. debug interface ge0/0/0
D. monitor usage ge-0/0/0

单项选择题What does the command show | compare rollback 1 display?（）

A. the difference between the current candidate configuration and the candidate configuration from one commit ago
B. the difference etween the current active configuration and the active configuration from the one commit ago
C. the difference between the current active configuration and the active configuration from one commit ago
D. the difference between the current candidate configuration and the archived configuration from one commit ago