Juniper Authorized JN0-106 Pdf: Junos, Associate (JNCIA-Junos) - Itcertmaster Instant Download

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Juniper JN0-106 Exam Syllabus Topics:

SectionObjectives
Topic 1: Routing Fundamentals- Routing Concepts and Configuration
  • 1. Routing instances
  • 2. Routing and forwarding tables
  • 3. Traffic forwarding concepts
  • 4. Static routing
  • 5. Route preference
  • 6. Dynamic routing protocol concepts
Topic 2: Networking Fundamentals- Core Networking Concepts
  • 1. Layer 2 addressing and ARP
  • 2. IPv4 and IPv6 addressing
  • 3. Class of Service (CoS)
  • 4. Collision domains and broadcast domains
  • 5. Ethernet networks
  • 6. Function of routers and switches
  • 7. Longest match routing
  • 8. Subnetting and supernetting
Topic 3: User Interfaces and Configuration Basics- CLI and Basic Configuration
  • 1. System configuration basics
  • 2. Interface configuration
  • 3. CLI navigation and help features
  • 4. Configuration hierarchy
  • 5. Commit and rollback operations
Topic 4: Junos OS Fundamentals- Junos Architecture and Operations
  • 1. Transit traffic processing
  • 2. Control plane and forwarding plane
  • 3. CLI operational and configuration modes
  • 4. Software architecture
  • 5. Routing Engine and Packet Forwarding Engine
Topic 5: Routing Policy and Firewall Filters- Policy Control and Packet Filtering
  • 1. Unicast reverse-path-forwarding (RPF)
  • 2. Firewall filter concepts
  • 3. Policy structure and terms
  • 4. Routing policy flow
  • 5. Filter match criteria and actions
  • 6. Import and export policies
Topic 6: Operational Monitoring and Maintenance- Monitoring and Troubleshooting
  • 1. Root password recovery
  • 2. Junos OS installation and upgrades
  • 3. Show and monitor commands
  • 4. Ping and traceroute utilities
  • 5. Interface statistics and errors

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Juniper Junos, Associate (JNCIA-Junos) Sample Questions (Q14-Q19):

NEW QUESTION # 14
Click the Exhibit button.

Referring to the exhibit, what is the next hop for IP address 10.0.0.9?

Answer: D

Explanation:
Routers use longest prefix match to select the next hop. The address 10.0.0.9 matches the most specific route shown, which is 10.0.0.8/27, so traffic is forwarded to 192.168.2.1.


NEW QUESTION # 15
Which two statements are true about the Junos OS? (Choose two.)

Answer: A,B


NEW QUESTION # 16
Which prompt indicates that you are using configuration mode?

Answer: B

Explanation:
In Junos OS, the # prompt indicates that you are in configuration mode. This mode is used for making changes to the configuration of the device.


NEW QUESTION # 17
Which two addresses are included in an Ethernet frame header? (Choose two.)

Answer: A,D

Explanation:
An Ethernet frame header includes the source MAC address (B) and the destination MAC address (D). These addresses are used to deliver the frame from one Ethernet device to another directly connected Ethernet device on the same network segment. Ethernet frames do not include IP addresses, as those are part of the IP packet encapsulated within the Ethernet frame.


NEW QUESTION # 18
Which command would you use to gracefully power off a Junos device?

Answer: A

Explanation:
Maintaining the integrity of the Junos OS file system is a critical operational requirement, especially during maintenance that involves removing power from the hardware. To achieve a graceful power- down, the request system halt command must be used. This command initiates a systematic shutdown of all running software processes and daemons, flushes any pending data from the system's volatile memory (RAM) to the solid-state storage or hard disk, and unmounts the file systems correctly. Once the software has safely shut down, the console will typically display a message indicating that it is safe to turn off the physical power switch or remove the power cables.
Using request system halt prevents potential file system corruption that can occur if power is abruptly cut while the OS is actively writing logs or configuration data. This is distinct from request system reboot, which restarts the OS, or request system logout, which merely terminates the current CLI session. As a Senior Architect, it is essential to follow this procedure to ensure that the device remains in a reliable state for its next power-on cycle. For devices equipped with dual Routing Engines, the command can often be directed to a specific member or both simultaneously to ensure a synchronized and safe shutdown of the entire chassis.


NEW QUESTION # 19
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