What is transit traffic in the Junos OS?
Correct Answer:A
You are troubleshooting traffic traversing the SRX Series Firewall and require detailed information showing how the flow module is handling the traffic.
How would you accomplish this task?
Correct Answer:C
When troubleshooting packet handling on an SRX Series device, administrators need to understand exactly how theflow moduleis processing traffic. The most effective tool for this is theflow traceoptions feature.
Flow traceoptions:Provides detailed per-packet trace information showing each processing step within the flow module. It reveals how traffic is evaluated against session tables, NAT rules, and security policies. This is the recommended method for in-depth troubleshooting.
Why not the others?
Theflow session table(Option A) shows only active sessions and counters, not detailed step-by-step handling.
Theforwarding table(Option B) relates to routing and forwarding decisions, not flow security processing.
Firewall filters(Option D) can match and log traffic but do not display detailed flow processing steps.
Therefore, the correct method to get detailed information about flow handling is toenable flow traceoptions.
[Reference:Juniper Networks –Monitoring and Troubleshooting with Flow Traceoptions, Junos OS Security Fundamentals, Official Course Guide., , ]
You want to enable NextGen Web Filtering in SRX Series devices.
In this scenario, which two actions will accomplish this task? (Choose two.)
Correct Answer:BD
You want to use Avira Antivirus.
Which two actions should you perform to satisfy this requirement? (Choose two.)
Correct Answer:CD
The SRX Series devices support third-party antivirus scanning engines such asAvira. To use the Avira antivirus engine, administrators must explicitly enable the engine and ensure that the required components are properly loaded.
Enable in configuration mode:
The Avira antivirus engine must be enabled under UTM configuration mode. This step ensures the SRX device uses the Avira scanning engine for antivirus inspection.
Example:
set security utm feature-profile anti-virus avira-engine enable
Reboot the SRX device:
A system reboot is required after enabling the Avira engine to load the Avira antivirus components into memory.
Without a reboot, the Avira engine will not become active.
Why not the others?
Restarting themgdprocess (Option A) only reloads the management daemon and does not load antivirus engines.
Enabling inoperational mode(Option B) is not supported; the configuration must be applied in configuration mode.
Therefore, the correct actions to use Avira Antivirus are:Enable the Avira engine in configuration mode (Option D) and reboot the SRX device (Option C).
[Reference:Juniper Networks –Junos OS UTM and Antivirus Configuration, Junos OS Security Fundamentals, Official Course Guide., ]
You need to capture control plane traffic on a high-end SRX Series device. How would you accomplish this task?
Correct Answer:B