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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security Policies | 20% | - Zone-based policies - Unified security policies - Policy rules and actions - Global policies |
| Topic 2: Monitoring, Reporting and Troubleshooting | 10% | - Security policy monitoring - Traffic flow verification - Troubleshooting common issues - Log and event management |
| Topic 3: Junos OS Security Objects | 20% | - Screens and security profiles - Application objects and ALGs - Security zones - Address objects and address sets |
| Topic 4: Network Address Translation | 15% | - Source NAT - NAT pools and rules - Static NAT - Destination NAT |
| Topic 5: SRX Series Service Gateways | 20% | - Interfaces - Traffic flow and security processing - Juniper vSRX Virtual Firewall - Initial configuration - J-Web management interface - Hardware components - General Junos architecture |
| Topic 6: Content Security | 15% | - Content filtering - Antivirus protection - Antispam filtering - Web filtering |
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NEW QUESTION # 63
You need to ensure that the security policy is configured correctly for a flow with both source NAT and destination NAT involved. In this scenario, which two match conditions are valid for source and destination addresses? (Choose two.)
Answer: B,D
Explanation:
When both source NAT and destination NAT are involved, the security policy must match addresses according to Junos NAT processing order. Juniper documents that static NAT and destination NAT are processed before route lookup and security policy lookup, while source NAT is processed after route and security policy lookup. This means that by the time policy evaluation occurs, the destination address has already been translated by destination NAT. However, the source address has not yet been translated by source NAT. Therefore, the correct policy match conditions are the post-NAT destination address and the pre-NAT source address. Matching on the pre-NAT destination or post-NAT source would not align with Junos SRX processing order.
NEW QUESTION # 64
Which two statements are correct about unified security policies? (Choose two.)
Answer: A,B
Explanation:
Unified security policies (USPs) provide integrated application-aware controls usingAppIDand extend traditional zone-based policy enforcement.
* Option A:Correct. If traffic matches a unified security policy, it is not re-evaluated by traditional security policies. Unified policies take precedence for matched flows.
* Option B:Incorrect. Traditional policies rely on Layer 3/4 attributes. Unified policies go deeper by leveraging AppID, which inspects traffic up to Layer 7.
* Option C:Incorrect. Traffic matching a traditional policy is unaffected by unified policy unless unified mode is explicitly configured for those flows.
* Option D:Correct. Dynamic application recognition in unified policies usesLayer 7 (application- layer) inspectionvia AppID.
Correct Statements:A and D
Reference:Juniper Networks -Unified Security Policies and AppSecure AppID, Junos OS Security Fundamentals.
NEW QUESTION # 65
Referring to the exhibit, which action would you take to permit the traffic shown in the exhibit?
Answer: D
Explanation:
The message Dropped by FLOW: First path ifp in Null Zone indicates that the incoming interface (ge-0/0/1.0) is not assigned to any security zone. In Junos SRX devices, traffic from interfaces not belonging to a zone is dropped by default. Assigning the ge-0/0/1.0 interface to a security zone will allow the SRX to apply appropriate security policies and permit the traffic.
NEW QUESTION # 66
Click the Exhibit button.
Which type of policy is shown in the exhibit?
Answer: C
Explanation:
From the exhibit configuration:
[edit security policies from-zone Trust to-zone Trust]
policy allow-all {
match {
source-address any;
destination-address any;
application any;
}
then {
permit;
}
}
The from-zone and to-zone are both set to Trust → Trust.
This means the policy is governing traffic within the same zone.
Policies within the same zone are called intra-zone policies.
Analysis of options:
Global policy (A): Applied universally across zones, not zone-specific. Not the case here.
Inter-zone policy (B): Applies between two different zones (e.g., Trust → Untrust). Not the case here since both zones are Trust.
Intra-zone policy (C): Correct. Applies to traffic within the same zone (Trust → Trust).
Default policy (D): The implicit deny-all policy that applies when no policy matches. Not shown in this exhibit.
Correct Policy Type: Intra-zone policy
NEW QUESTION # 67
Which two statements are correct about NAT and security policy processing? (Choose two.)
Answer: A,B
Explanation:
The packet processing order in SRX with NAT and policies is:
* Destination NAT(applies first, for inbound traffic).
* Security Policy Evaluation(after destination NAT, before source NAT).
* Source NAT(applies last, for outbound traffic).
* Option A:Incorrect. Policies are not evaluated before destination NAT.
* Option B:Correct. Security policies are evaluatedbefore source NATbut after destination NAT. So in terms of order, policies are processed prior to source NAT.
* Option C:Incorrect. Policies are not evaluated before source NAT - they are evaluatedbefore source NAT is applied.
* Option D:Correct. Policies are evaluatedafter destination NAT.
Correct Statements:B and D
Reference:Juniper Networks -Packet Flow Processing Order (NAT and Policies), Junos OS Security Fundamentals.
NEW QUESTION # 68
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