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An administrator wants to set up a remote user authentication service for the many users that access a Juniper security device. In this scenario, what are two supported authentication protocols? (Choose two.)
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A, B
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Explanation
For managing high volumes of administrative users, Junos OS supports externalizing the authentication, authorization, and accounting (AAA) process. The two primary industry-standard protocols supported for this purpose are RADIUS (Remote Authentication Dial-In User Service) and TACACS+ (Terminal Access Controller Access-Control System Plus). Using these protocols allows an architect to maintain a centralized user database on an external server (like Cisco ACS, FreeRADIUS, or Microsoft NPS) rather than configuring every individual user account locally on every Junos device. When a user attempts to log in via SSH or the console, the Junos device acts as a client, forwarding the credentials to the remote server. RADIUS is often preferred for its broad compatibility and efficiency, while TACACS+ is frequently chosen for its ability to separate authentication from authorization and its support for granular command-level accounting. SHA (Secure Hash Algorithm) is a cryptographic hash function used within these processes but is not an authentication protocol itself. Similarly, IPsec is a suite for securing IP communications (VPNs) and is unrelated to the administrative login AAA sequence. |
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?
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C
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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. Reference: User Interfaces, User Management and Access Control. ========== |
Which two statements are correct about Junos OS? (Choose two.)
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B, D
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Explanation
Junos OS is built upon a highly stable and secure architecture that distinguishes it from many legacy network operating systems. Two of its most defining characteristics are software modularization and the separation of the control and forwarding planes . Modularization means that Junos OS runs each major function—such as the routing protocol process (rpd), the management process (mgd), and the interface process (dcd)—as an independent software daemon in its own protected memory space. This ensures that if a single process crashes or needs to be restarted, it does not bring down the entire system or interrupt traffic forwarding. Furthermore, the physical and logical separation of the Control Plane (Routing Engine) and the Forwarding Plane (Packet Forwarding Engine) is a cornerstone of Junos design. The Routing Engine handles complex intelligence, protocol calculations, and management, while the Packet Forwarding Engine performs high-speed packet switching in hardware. This ensures that a heavy management load or a complex routing recalculation won ' t cause " jitter " or packet loss for transit traffic. Conversely, Junos strictly prohibits unsigned third-party binaries to maintain system integrity, and it maintains a clear functional distinction between routing policies (path selection) and security policies (traffic permit/deny). |
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The Juniper JN0-106 certification is a globally-acknowledged credential that is awarded to candidates who pass this certification exam by obtaining the required passing score. This credential attests and validates the candidates' knowledge and hands-on skills in domains covered in the Juniper JN0-106 certification syllabus. The Juniper JN0-106 certified professionals with their verified proficiency and expertise are trusted and welcomed by hiring managers all over the world to perform leading roles in organizations. The success in Juniper JN0-106 certification exam can be ensured only with a combination of clear knowledge on all exam domains and securing the required practical training. Like any other credential, Juniper JN0-106 certification may require periodic renewal to stay current with new innovations in the concerned domains.