JNCIA-JUNOS EXAM Q&A

What is an internal interface in Junos OS? - Answer- Used to connect the control and forwarding planes. The actual designation for this interface is platform-specific; examples include fxp1 and em0. What is a service interface in Junos OS? - Answer- These are used to provide one or more user-configurable services such as encryption, tunneling, and link services. Services interfaces can be provided through a physical services interface card or through software. Ref. chp 3-9 What does service interface es stand for? - Answer- Encryption interface What does service interface gr stand for? - Answer- Generic route encapsulation tunnel interface What does service interface ip stand for? - Answer- Ip-over-IP encapsulation tunnel interface What does service interface ls stand for? - Answer- Link services interface What does service interface ml stand for? - Answer- Multilink interface What does service interface mo stand for? - Answer- Passive monitoring interface What does the service interface mt stand for? - Answer- Multicast tunnel interface What does the service interface sp stand for? - Answer- Adaptive services interface What does the service interface vt stand for? - Answer- Virtual loopback tunnel interface How do you save a rescue configuration? What mode? - Answer- request system configuration rescue save; operational mode How do you delete a rescue configuration? What mode? - Answer- request system configuration rescue delete; operational mode How do you recover to a rescue configuration? What mode? - Answer- rollback rescue; configuration mode What sort of code base does Junos use? - Answer- All platforms running the Junos OS use the same software source code base. A single software code base. Wh