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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Address Translation | 15% | - Destination NAT - Source NAT - Static NAT - NAT pools and rules |
| Topic 2: SRX Series Service Gateways | 20% | - J-Web management interface - Initial configuration - General Junos architecture - Hardware components - Interfaces - Traffic flow and security processing - Juniper vSRX Virtual Firewall |
| Topic 3: Security Policies | 20% | - Zone-based policies - Policy rules and actions - Unified security policies - Global policies |
| Topic 4: Content Security | 15% | - Antispam filtering - Content filtering - Web filtering - Antivirus protection |
| Topic 5: Junos OS Security Objects | 20% | - Screens and security profiles - Address objects and address sets - Application objects and ALGs - Security zones |
| Topic 6: Monitoring, Reporting and Troubleshooting | 10% | - Security policy monitoring - Log and event management - Traffic flow verification - Troubleshooting common issues |
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66. Frage
Click the Exhibit button.
Referring to the exhibit, which two statements are correct? (Choose two.)
Antwort: A,B
Begründung:
From the exhibit output:
Policy Information:
Policy: https-access, action-type: permit
From zone: Trust, To zone: Untrust
Application: junos-https
IP protocol: tcp, Destination port: 443
Inactivity timeout: 1800
Sequence number: 1
Analysis:
Option A: Correct. The default inactivity timeout for flow sessions is 60 seconds for TCP without activity. This policy shows an inactivity timeout of 1800 seconds, which is non-default.
Option B: Incorrect. The policy shows Sequence number: 1, which means it is the first policy, not the second.
Option C: Correct. The policy explicitly matches application junos-https (TCP port 443) and has an action of permit. Therefore, it allows HTTPS traffic.
Option D: Incorrect. This is clearly a zone-based policy, but the question asks for two correct statements. Between the four options, the explicitly correct ones are A and C.
Correct Statements: This security policy uses a non-default inactivity timeout, and this security policy permits HTTPS traffic.
67. Frage
Which two statements describe what Port Address Translation (PAT) does? (Choose two.)
Antwort: A,D
Begründung:
PAT (Port Address Translation), also called NAT overload, allows many devices to share a single public IP:
Option C: Correct. Multiple internal hosts share a single external IP.
Option D: Correct. Each internal host is mapped to the same public IP but differentiated by unique port numbers.
Option A: This describes basic static NAT (1-to-1 mapping).
Option B: Incorrect, this describes general NAT behavior but not specific to PAT.
Correct Statements: PAT enables multiple internal devices to share one external IP, and it maps internal IPs to external IP + port.
68. Frage
Which two security features are applied in a security policy? (Choose two.)
Antwort: A,B
Begründung:
Security policies can reference additional services and authentication behavior after traffic matches the policy criteria. SSL proxy is applied through a security policy by matching the traffic that should be decrypted and inspected, then referencing the SSL proxy profile as an application service. Firewall authentication is also policy-based; Juniper describes it as requiring users to authenticate to the SRX Series Firewall before access between zones and devices is permitted. Captive portal authentication is a web redirection mechanism and is not the direct security policy feature identified in this question. MAC bypass is not a standard SRX security policy service. Therefore, SSL proxy and firewall authentication are the two features applied through security policy processing.
69. Frage
You want to use Avira Antivirus.
Which two actions should you perform to satisfy this requirement? (Choose two.)
Antwort: A,B
Begründung:
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.
70. Frage
Which two statements about management functional zones are correct? (Choose two.)
Antwort: B,D
Begründung:
Themanagement functional zoneon SRX devices is a special predefined zone with unique characteristics:
* It isautomatically created(Option C) and cannot be deleted.
* It is used specifically formanagement-related traffic(Option A), such as SSH, Telnet, web management (J-Web), SNMP, and other control-plane services.
* It does not contain revenue (data) interfaces (Option B is incorrect). Interfaces must be explicitly configured into user-defined zones.
* The management zone can be referenced in policies if inter-zone communication involving management traffic is needed (Option D is incorrect).
Correct Statements:A and C
Reference:Juniper Networks -Security Zones and Management Functional Zone, Junos OS Security Fundamentals.
71. Frage
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