BraindumpsIT Juniper JN0-106 PDF Questions and Practice Test Software

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Juniper JN0-106 Exam Syllabus Topics:

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

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Juniper Junos, Associate (JNCIA-Junos) Sample Questions (Q98-Q103):

NEW QUESTION # 98
You are creating a new user account on your Junos device. The user must be able to validate the routing table and interface statistics but should not be able to make any configuration changes. In this scenario, which permission flag would satisfy this requirement?

Answer: A

Explanation:
User access control in Junos OS is managed through the application of permission flags within login classes. When an architect needs to define a role that allows for robust monitoring and troubleshooting without granting authority to alter the device's operational state, the view permission flag is the appropriate selection. This flag grants the user the ability to execute the majority of show commands in operational mode, which includes viewing the routing table, inspecting interface statistics, and checking hardware status.
The view permission is specifically designed for "read-only" access. It ensures that the user can observe all necessary telemetry data to validate network health--satisfying the requirement to check routing and interface stats--while strictly prohibiting access to configuration mode or any set commands. This contrasts with the configure flag, which allows modification of the candidate configuration, or the network flag, which provides specific permissions related to network-level operational tasks. By assigning a user to a class restricted with the view flag, an administrator maintains a secure environment where support personnel can diagnose issues without the risk of accidental or unauthorized configuration changes. This principle of least privilege is a cornerstone of Junos security management.


NEW QUESTION # 99
What is the primary system log file that is present in the default configuration of a Junos device?

Answer: D

Explanation:
In the default configuration of a Junos device, the primary system log file is "messages" (B). This log file contains a wide range of system messages, including operational status changes, system errors, and other critical information, making it a key resource for troubleshooting and monitoring the system's health.


NEW QUESTION # 100
Which two statements apply to the Routing Engine functions? (Choose two.)

Answer: B,C

Explanation:
The Routing Engine (RE) in Juniper Networks devices plays a critical role in the control plane operations. One of its functions includes responding to network utility commands like ping and traceroute, which are essential for diagnosing network connectivity and path issues. Furthermore, the RE is responsible for maintaining the routing tables, which contain information about network paths and destinations. These tables are vital for making forwarding decisions but are distinct from the actual forwarding of packets, which is handled by the Packet Forwarding Engine (PFE).


NEW QUESTION # 101
You are asked to subnet the broadcast domains but need to support 50 hosts. In this scenario, which subnet mask would satisfy this requirement?

Answer: A

Explanation:
Determining the appropriate subnet mask for a specific host requirement is a core task in designing Junos- based network infrastructures. The number of usable hosts in an IPv4 subnet is calculated using the formula
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