JN0-335 Exam Dumps : Security, Specialist (JNCIS-SEC)

= The vSRX is a virtual firewall that offers the same features as the physical SRX Series firewalls, but in a virtualized form factor for delivering security services that scale to match network demand. The vSRX supports Juniper Contrail Networking and third-party software-defined networking (SDN) solutions, which enable dynamic and automated network provisioning and management. The vSRX also integrates with cloud orchestration tools such as OpenStack, which allow for flexible deployment and configuration of virtual machines and networks. The vSRX provides granular security for the workloads that run within the virtual network on the public or private cloud. It supports next-generation firewall capabilities, such as application security, intrusion prevention, user identity, and role-based access control. It also supports advanced threat prevention features, such as malware sandboxing, threat intelligence feeds, and encrypted traffic inspection. The vSRX can protect the network from both internal and external threats, and enforce consistent security policies across the entire network. References:

• vSRX Virtual Firewall | Juniper Networks US
• vSRX Documentation | Juniper Networks
• Understand vSRX Virtual Firewall with Microsoft Azure Cloud

JIMS server is a Windows service application that collects and maintains user, device, and group information from Active Directory domains or syslog sources. JIMS server uses the Windows event logs to obtain user login and logout information from the domain controllers and Exchange servers. Therefore, to enable JIMS server to view the event logs, you need to perform the following actions:

• Enable remote event log management within Windows Firewall on the necessary domain controllers and Exchange servers. This allows JIMS server to access the event logs on these servers remotely. You can do this by using the Windows Firewall with Advanced Security snap-in or by using the netsh command. For example, to enable remote event log management on a domain controller, you can use the following command:

netsh advfirewall firewall set rule group="Remote Event Log Management" new enable=yes

• Enable remote event log management within Windows Firewall on the JIMS server. This allows JIMS server to receive the event logs from the domain controllers and Exchange servers. You can do this by using the same method as above. For example, to enable remote event log management on the JIMS server, you can use the following command:

netsh advfirewall firewall set rule group="Remote Event Log Management" new enable=yes

Option C and Option D show the correct actions for solving this issue. Option A and Option B are incorrect because they are not related to the JIMS server’s ability to view the event logs. Host-inbound-traffic rules are used to control the traffic that is allowed to reach the SRX Series devices, not the JIMS server. Enabling remote event log management on the Exchange servers is not necessary if JIMS server does not need to collect user information from them.

References: Juniper Security, Specialist (JNCIS-SEC) Reference Materials and Juniper Security, Professional (JNCIP-SEC) Reference Materials

• Cluster failovers occur when one node in a chassis cluster becomes inactive or unreachable, and the other node takes over the processing of traffic and services. To control when cluster failovers occur, you can configure two specific parameters on an SRX Series device: heartbeat-interval and heartbeat-threshold12.
• Heartbeat-interval is the time interval, in milliseconds, between heartbeat messages sent by each node to the other node. The default value is 1000 ms. You can configure the heartbeat-interval value from 100 through 3000 ms1.
• Heartbeat-threshold is the number of consecutive heartbeat messages that can be missed before a node is considered to be down. The default value is 3. You can configure the heartbeat-threshold value from 2 through 2551.
• The combination of heartbeat-interval and heartbeat-threshold determines the failover time, which is the maximum time it takes for a node to detect the failure of the other node and initiate a failover. The failover time is calculated as follows: failover time = heartbeat-interval x heartbeat-threshold1.
• For example, if the heartbeat-interval is 1000 ms and the heartbeat-threshold is 3, the failover time is 3000 ms. This means that if a node does not receive three consecutive heartbeat messages from the other node within 3000 ms, it will assume that the other node is down and initiate a failover1.
• You can configure the heartbeat-interval and heartbeat-threshold parameters using the set chassis cluster redundancy-group group-id node node-id priority priority heartbeat-interval interval heartbeat-threshold threshold command1.

References:

• 1: Configuring Chassis Cluster Redundancy Group Properties | Junos OS | Juniper Networks
• 2: Example: Configuring an Active/Passive Cluster Deployment | Junos OS | Juniper Networks