• B: Chassis cluster member devices synchronize configuration using the control link. The control link is used to exchange control messages and configuration information between the two nodes of a chassis cluster1. The primary node pushes the configuration to the secondary node and ensures that both nodes have the same configuration2.
• C: A control link failure causes the secondary cluster node to be disabled. If the control link fails, the primary node cannot communicate with the secondary node and assumes that the secondary node is down1. The primary node then disables the secondary node and takes over all the traffic processing2.
• E: Heartbeat messages verify that the chassis cluster control link is working. The control link also carries heartbeat messages that are exchanged between the two nodes every 500 milliseconds by default1. The heartbeat messages indicate the status and health of the nodes and the control link2.
• A: Chassis cluster control links must be configured using RFC 1918 IP addresses. This is a false statement. The control link can use any IP address range as long as it is not in conflict with other interfaces or routes on the cluster nodes1. RFC 1918 IP addresses are private addresses that are not routable on the Internet4.
• D: Recovery from a control link failure requires that the secondary member device be rebooted. This is also a false statement. Recovery from a control link failure does not require rebooting the secondary node1. The secondary node can rejoin the cluster when the control link is restored and the configuration is synchronized2.

References:

• 1: Configuring Chassis Clustering on SRX Series Devices
• 2: Chassis Cluster User Guide for SRX Series Devices
• 3: Connecting SRX Series Firewalls to Create a Chassis Cluster
• 4: RFC 1918 - Address Allocation for Private Internets

https://supportportal.juniper.net/s/article/SRX-Secondary-node-of-a-Chassis-Cluster-is-in-Disabled-state-how-do-you-find-the-cause

References: IDP Policy Rules and IDP Rule Bases, rulebase-ips, Exam Name: Security, Specialist (JNCIS-SEC) Version: DEMO - Lead2Pass

The vSRX is a virtual firewall that offers the same features as the physical SRX Series firewalls, but in a virtualized form factor. It supports next-generation firewall (NGFW) capabilities, networking, and automated lifecycle management. It also integrates with cloud orchestration tools and software-defined networking (SDN) solutions1

The vSRX supports VMXNET3 vNICs, which are optimized for performance in virtualized environments. VMXNET3 vNICs offer enhanced networking features such as jumbo frames, hardware offloads, and multicast filtering2

The vSRX runs on Linux as the base OS, which provides a stable and secure platform for the Junos OS and the firewall functionality. Linux also enables the vSRX to leverage the native hypervisor drivers and APIs for better performance and compatibility3

References: 1: vSRX Virtual Firewall | Juniper Networks US 2: vSRX Virtual Firewall for VMware - TechLibrary - Juniper Networks 3: vSRX Overview - TechLibrary - Juniper Networks