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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Junos OS Security Objects | 20% | - Screens and security profiles - Application objects and ALGs - Address objects and address sets - Security zones |
| Topic 2: Monitoring, Reporting and Troubleshooting | 10% | - Log and event management - Troubleshooting common issues - Traffic flow verification - Security policy monitoring |
| Topic 3: Security Policies | 20% | - Unified security policies - Zone-based policies - Global policies - Policy rules and actions |
| Topic 4: Network Address Translation | 15% | - NAT pools and rules - Source NAT - Destination NAT - Static NAT |
| Topic 5: SRX Series Service Gateways | 20% | - Hardware components - Juniper vSRX Virtual Firewall - Interfaces - J-Web management interface - Initial configuration - General Junos architecture - Traffic flow and security processing |
| Topic 6: Content Security | 15% | - Antivirus protection - Antispam filtering - Web filtering - Content filtering |
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NEW QUESTION # 41
Which two statements are correct about security zones on an SRX Series device? (Choose two.)
Answer: B,C
Explanation:
Routing instances: Security zones are local to their routing instance. They cannot be shared between routing instances (Option B is correct). Each routing instance must define its own zones.
Intrazone and interzone traffic: Both types of traffic require policies in Junos OS. Intrazone traffic must have an explicit intra-zone policy to be controlled (Option C is correct).
Sharing zones: Option A is incorrect, as zones cannot span routing instances.
Multiple zones: SRX devices fully support multiple security zones (trust, untrust, DMZ, etc.). Option D is incorrect.
Correct Statements: B and C
NEW QUESTION # 42
What happens if no match is found in both zone-based and global security policies?
Answer: B
Explanation:
SRX devices operate on a default deny-all policy if no explicit match is found:
If a packet does not match any configured zone-based or global policy, it is implicitly denied.
The traffic is discarded silently by the default security policy (Option A).
Option B: No predefined "safe zone" exists.
Option C: Logging occurs only if explicitly configured; default deny does not automatically log traffic.
Option D: Incorrect, since the firewall defaults to deny, not permit.
Correct Behavior: Traffic is discarded by the default security policy.
NEW QUESTION # 43
Click the Exhibit button.
The exhibit shows a table representing security policies from the trust zone to the untrust zone.
In this scenario, which two statements are correct? (Choose two.)
Answer: A,C
Explanation:
Juniper SRX evaluates security policies sequentially from top to bottom. Once a policy match is found, no further policies are evaluated. In this exhibit:
First Policy (FTP, deny):
Source: 172.25.11.0/24
Destination: 10.1.0.0/16
Application: FTP
Action: deny
⇒ Any FTP traffic from 172.25.11.0/24 to 10.1.0.0/16 is denied.
Second Policy (SSH, permit):
Same source/destination but application = SSH
Action = permit
⇒ SSH traffic from 172.25.11.0/24 to 10.1.0.0/16 is permitted.
Third Policy (HTTPS, permit):
⇒ HTTPS from the same source/destination is permitted.
Fourth Policy (Ping, permit):
Source: 172.25.11.0/24 to any destination
Application: ping
Action: permit
⇒ ICMP echo requests (ping) from 172.25.11.0/24 to any destination are permitted.
Fifth Policy (any → any, deny):
⇒ Serves as a default deny all at the end.
Now checking each option:
Option A: SSH from 172.25.11.10 → 10.1.0.10 matches the SSH permit rule (second policy). ✅ Correct.
Option B: Ping from 172.25.11.100 → 10.1.0.10 matches the ping permit rule (fourth policy). This traffic is permitted, not denied. ❌ Incorrect.
Option C: FTP from 10.1.0.10 → 172.25.11.100 is reverse traffic (untrust to trust). The table applies only trust → untrust, so this policy does not apply. ❌ Incorrect.
Option D: FTP from 172.25.11.11 → 10.1.0.10 matches the first policy (FTP deny rule). ✅ Correct.
Correct Statements: A, D
NEW QUESTION # 44
Click the Exhibit button.
Referring to the exhibit, which two statements are correct about the traffic flow shown in the exhibit? (Choose two.)
Answer: A,C
Explanation:
Inbound Flow (before NAT):
Source = 10.20.30.40 (internal private IP)
Destination = 203.0.113.1 (public DNS server)
Outbound Flow (after NAT):
Source = 192.0.2.1 (translated IP)
Destination = 203.0.113.1 (unchanged)
Analysis:
The source IP (10.20.30.40) was translated to 192.0.2.1. This indicates Source NAT was applied → Option B is correct.
The destination IP changed between the inbound and outbound view. Inbound it was 203.0.113.1, and outbound it is still 203.0.113.1 in appearance, but notice the reversal: the session entry shows it as the outbound "source" side. This confirms Destination NAT translation has occurred for return flow consistency → Option D is correct.
Option A: Incorrect. The original source IP was indeed translated.
Option C: Incorrect. The destination IP did change in the flow processing.
Correct Statements:
The original source IP address was translated to a new source IP address.
The original destination IP address was translated to a new destination IP address.
NEW QUESTION # 45
You want to verify that your NextGen Web Filtering (NGWF) feature is connected to the Juniper cloud.
Which operational mode command would you use for this task?
Answer: D
Explanation:
The show security web filtering status command displays the connection status between the SRX device's NextGen Web Filtering (NGWF) feature and the Juniper Cloud. It verifies that the SRX is properly communicating with the cloud service for URL categorization and policy enforcement.
NEW QUESTION # 46
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