JN0-100章节练习(2018.10.22)

单项选择题
Which logical unit number must be configured on an interface using PPP encapsulation?（）
A.unit 0
B.unit 1
C.unit 100
D.unit 255
单项选择题
Which application would be suited for UDP traffic?（）
A.Web browsing
B.downloading a program
C.streaming television shows
D.on-line shopping
多项选择题
What are two valid initial configuration methods supported on Juniper routers?（）
A.CLI
B.J-Web
C.JUNOScope
D.PCMCIA flash card
单项选择题
The interface ge-0/2/3 is located in which flexible PIC concentrator slot?（）
A.0
B.2
C.3
D.4
多项选择题
Which three statements are true regarding the Network Time Protocol (NTP) in JUNOS platforms?（）
A.MD5 authentication is supported.
B.A client always synchronizes to a server even when the difference between the server clock and the local clock differs by a large amount.
C.JUNOS software can provide a primary time reference.
D.The boot-server configuration allows a router to synchronize its clock when it boots up, regardless of the offset between the NTP clock source and its internal clock.
E.It is useful to correlate timestamps on log files and other events for troubleshooting and forensics.
单项选择题
Which command sequence shows traffic per queue for an interface?（）
A.show interfaces queue ge-0/0/0
B.show statistics queue detail
C.show interfaces ge-0/0/0 statistics extensive
D.monitor interface ge-0/0/0 queue
单项选择题
On a Juniper router，what is the default file used for syslog messages？（）
A.system
B.errors
C.security
D.messages
多项选择题
Which two statements are true regarding an Ethernet collision domain?（）
A.If a switch is used, the collision domain includes all devices connected to the switch.
B.If a hub is used, the collision domain includes all devices connected to the hub.
C.If a hub is used, the collision domain is limited to each device and the hub.
D.If a switch is used, the collision domain is limited to each device and the switch.
单项选择题
After issuing the show interfaces terse command, you notice that the status of one interface is "up down". What does this indicate?"（）
A.Layer 1 on the interface is up but Layer 2 is down.
B.Layer 2 on the interface is up but Layer 3 has not been configured.
C.The interface is administratively up but the link status is down.
D.The interface is up but has been administratively turned off.
单项选择题
You are the top of the hierarchy in configuration mode. How would you save your configuration to a file on the router?（）
A.save configuration <filename>
B.save config <filename>
C.save <filename>
D.save run <filename>