Free JNCIA Junos OS Fundamentals Questions and Answers — Questions and Answers
Question 1: What is the primary function of the Junos OS?
- Provide a GUI for network management
- Serve as a modular and scalable network operating system (Correct answer)
- Encrypt network traffic
- Optimize wireless connections
Correct answer: Serve as a modular and scalable network operating system
Junos OS is designed for high-performance routing, switching, and security in network devices.
Question 2: Which component is responsible for controlling and managing the Junos OS?
- Packet Forwarding Engine (PFE)
- Routing Engine (RE) (Correct answer)
- Firewall Filter
- Control Plane
Correct answer: Routing Engine (RE)
The Routing Engine handles control plane functions, such as routing protocols and system management.
Question 3: How is the Junos OS configuration organized?
- Flat text files
- A hierarchical structure (Correct answer)
- JSON objects
- XML-based templates
Correct answer: A hierarchical structure
Junos OS uses a hierarchical configuration structure that allows for intuitive navigation and management.
Question 4: What command is used to enter configuration mode in Junos OS?
- enable
- edit
- configure (Correct answer)
- set
Correct answer: configure
The configure command switches the user from operational mode to configuration mode.
Question 5: In Junos OS, what is the purpose of the commit command?
- Save the current configuration to an external file
- Apply the candidate configuration to the active configuration (Correct answer)
- View pending changes
- Revert to the default configuration
Correct answer: Apply the candidate configuration to the active configuration
The commit command applies the candidate configuration to the active system configuration.
Free JNCIA Junos OS Fundamentals Questions and Answers
What is the primary function of the Junos OS?