Juniper : JN0-202 Questions & Answers

Updated: Sep 12, 2026

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Juniper JN0-202 Exam Syllabus Topics:

SectionObjectives
Topic 1: Routing Fundamentals- Dynamic routing concepts
  • 1. Basic OSPF concepts
    • 2. Distance vector vs link-state protocols
      - Static routing
      • 1. Route selection and preference
        Topic 2: Networking Fundamentals- Ethernet and LAN concepts
        • 1. MAC addressing and switching behavior
          • 2. ARP operation
            - OSI model and TCP/IP model concepts
            • 1. IP addressing and subnetting basics
              • 2. Layer functions and encapsulation
                Topic 3: Routing Protocol Basics- BGP fundamentals
                • 1. eBGP vs iBGP basics
                  • 2. Path selection overview
                    - OSPF fundamentals
                    • 1. Neighbor discovery and adjacency
                      • 2. Areas and LSDB concepts
                        Topic 4: Network Operations and Troubleshooting- Monitoring tools
                        • 1. log file interpretation
                          • 2. show commands in Junos
                            - Troubleshooting methodology
                            • 1. Layered troubleshooting approach
                              Topic 5: Juniper Junos OS Fundamentals- Basic configuration and navigation
                              • 1. Configuration hierarchy
                                • 2. CLI operational and configuration modes
                                  - Junos OS architecture
                                  • 1. Commit model
                                    • 2. Control plane vs forwarding plane

                                      Juniper M-series, Associate (JNCIA-M) Sample Questions:

                                      Question #1

                                      Which three are valid options for the next hop of a static route? (Choose three.)

                                      • A. reject
                                      • B. accept
                                      • C. next-hop 192.168.1.1
                                      • D. next-hop self
                                      • E. discard
                                      Answer: A,C,E
                                      Question #2

                                      During OSPF adjacency formation, in whch state is a router when it is negotiating to be in charge of the database synchronization process?

                                      • A. Exchange
                                      • B. 2Way
                                      • C. Init
                                      • D. ExStart
                                      Answer: D
                                      Question #3

                                      Which optional BGP attribute can only be used when multiple connections exist between neighboring autonomous systems?

                                      • A. MED
                                      • B. AS_PATH
                                      • C. ORIGIN
                                      • D. LOCAL_PREF
                                      Answer: A
                                      Question #4

                                      How often are IS-IS Hello packets transmitted?

                                      • A. 10 seconds for all routers
                                      • B. 10 seconds for DIS; 3 seconds for non-DIS
                                      • C. 3 seconds for DIS; 9 seconds for non-DIS
                                      • D. 9 seconds for DIS; 3 seconds for non-DIS
                                      Answer: C
                                      Question #5

                                      In multicast, what is the process that helps guarantee that the distribution tree will be loop free?

                                      • A. source specific multicast
                                      • B. reverse routing
                                      • C. reverse path forwarding check
                                      • D. unicast routing check
                                      Answer: C

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