JN0-101单项选择题每日一练(2019.01.16)

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
单项选择题
Which command do you use to display the messages seen during the last system boot?（）
A. show system boot-messages
B. show chassis messages
C. show file system boot-messages
D. show boot-log messages
单项选择题
Which protocol creates a complete database of the network topology/prior to calculating the optimal route?（）
A.BGP
B.PIM
C.OSPF
D.RIP
单项选择题
Which command displays the amount of space available on the storage media?（）
A. show chassis routing-engine
B. show system file-storage
C. file list
D. show system storage
单项选择题
What is a valid option when using the ping command?（）
A. packet loss
B. packet size
C. CRC
D. TCP port