Official JN0-106 Study Guide - JN0-106 Valid Test Cost

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Juniper JN0-106 Exam Overview:

Certification Vendor:Juniper Networks
Exam Name:Junos, Associate (JNCIA-Junos)
Exam Number:JN0-106
Certificate Validity Period:3 years
Available Languages:English
Exam Duration:90 minutes
Related Certifications:JNCIP-SP
JNCIS-ENT
JNCIS-SP
JNCIP-ENT
JNCIE-ENT
JNCIE-SP
Exam Price:$200 USD
Exam Format:Multiple choice
Real Exam Qty:65
Passing Score:60% - 70% (scaled scoring, exact value not published)
Recommended Training:Introduction to Junos OS
Getting Started with Networking
Exam Registration:Pearson VUE Registration
Sample Questions:Juniper JN0-106 Sample Questions
Exam Way:Online (OnVUE) or onsite at Pearson VUE test centers
Pre Condition:No prerequisites required
Official Syllabus URL:https://www.juniper.net/us/en/training/certification/tracks/junos/jncia-junos.html

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Juniper JN0-106 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Junos OS Fundamentals: Covers the architecture of Junos OS, focusing on the separation of control and forwarding planes and how traffic is processed by the routing and packet-forwarding engines.
Topic 2
  • Configuration Basics: Covers the essential steps for configuring a Junos device from factory default, including user accounts, interfaces, authentication, system services like NTP and SNMP, and configuration archival.
Topic 3
  • Operational Monitoring and Maintenance: Covers the tools and procedures used to monitor, maintain, and troubleshoot Junos devices, including show
  • monitor commands, network utilities, OS upgrades, and password recovery.
Topic 4
  • User Interfaces: Covers how to navigate and use the Junos CLI and J-Web interface, including configuration management, output filtering, and working with active versus candidate configurations.

Juniper Junos, Associate (JNCIA-Junos) Sample Questions (Q88-Q93):

NEW QUESTION # 88
What is a benefit of using J-Web?

Answer: D

Explanation:
If you've committed a configuration and then need to revert to the previous configuration, the rollback command is used. Since the incorrect IP address has not been committed, as indicated by the commit check command being successful, issuing rollback 1 will undo the changes made in the current session, which includes the accidental entry of the IP address.


NEW QUESTION # 89
Which statement is correct about the default security policy behavior on an SRX device?

Answer: A

Explanation:
By default, SRX devices deny all inter-zone traffic unless a security policy explicitly permits it, following a default-deny security posture.


NEW QUESTION # 90
Which two tasks are performed by the Routing Engine in a Junos device? (Choose two.)

Answer: C,D

Explanation:
The Routing Engine (RE) functions as the centralized processor and administrative core of any Junos OS-based platform. Its primary responsibility involves the execution and maintenance of the control plane, which includes running all active routing protocols such as OSPF, BGP, and IS- IS. Through these protocols, the RE exchanges topology information with neighboring routers, builds the Routing Information Base (RIB), and calculates the optimal paths for traffic. Once these paths are determined, the RE distributes the resulting Forwarding Information Base (FIB) to the Packet Forwarding Engine (PFE) for hardware-level execution.
In addition to its protocol duties, the Routing Engine manages the device configuration and the overall system environment. This includes providing the user interface (CLI or J-Web), managing the candidate and active configuration databases, and handling the commit process. While the PFE is specifically designed to forward transit traffic and evaluate that traffic against firewall filters at line rate, the RE focuses on the higher-level logic and management tasks. This architectural separation ensures that management functions--such as a complex configuration commit or a protocol re-convergence event--do not degrade the performance of the data plane, allowing the device to continue forwarding user traffic without interruption.


NEW QUESTION # 91
Exhibit:

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

Answer: B

Explanation:
In Junos OS, the Packet Forwarding Engine (PFE) determines the next hop for a packet by performing a lookup in the forwarding table and identifying all valid matches for the destination IP address. When multiple routes encompass the same destination, the router strictly follows the Longest Prefix Match (LPM) rule to select the most specific entry.
For the destination address 10.0.0.9 , the following evaluation occurs based on the exhibit:
* 10.0.0.0/24 : This route matches, as the address falls within the 10.0.0.0-10.0.0.255 range.
* 10.0.0.0/26 : This route matches, as the address falls within the 10.0.0.0-10.0.0.63 range.
* 10.0.0.8/27 : This route matches, as the address falls within the 10.0.0.8-10.0.0.39 range.
* 10.0.0.4/30 : This route does not match, as its range ends at 10.0.0.7.
Among the matching entries, the prefix lengths are /24, /26, and /27. The longest prefix match is /27 , as it specifies the most granular network segment. Because 10.0.0.8/27 is the most specific match for the destination 10.0.0.9 , the router selects its associated next hop, which is 192.168.2.1 . This deterministic behavior ensures that traffic follows the most precise path calculated by the routing protocols or defined by the administrator, overriding broader routes like the default or summary advertisements.
Reference: Routing Fundamentals, Longest Prefix Match, Forwarding Table Selection.


NEW QUESTION # 92
Click the Exhibit button.

Which statement is correct when Router R1 receives a packet from User A destined for User B as shown in the exhibit?

Answer: C

Explanation:
When R1 forwards the packet to the next hop, it keeps the destination IP address unchanged but rewrites the Layer 2 header for the next link. That means the destination MAC address becomes the MAC address of Router R2.


NEW QUESTION # 93
......

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