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NEW QUESTION # 18
Exhibit
You are trying to configure an IPsec tunnel between SRX Series devices in the corporate office and branch1. You have committed the configuration shown in the exhibit, but the IPsec tunnel is not establishing.
In this scenario, what would solve this problem.
- A. Change the local identity to inet advpn on the branch1 device.
- B. Add multipoint to the st0.0 interface configuration on the branch1 device.
- C. Change the IKE mode to aggressive on the branch1 and corporate devices.
- D. Change the IKE proposal-set to compatible on the branch1 and corporate devices.
Answer: A
NEW QUESTION # 19
Exhibit:
The security trace options configuration shown in the exhibit is committed to your SRX series firewall.
Which two statements are correct in this Scenario? (Choose Two)
- A. The file debugger will be readable only by the user who committed this configuration
- B. Once the trace has generated 10 log files, the trace process will halt.
- C. The file debugger will be readable by all users.
- D. Once the trace has generated 10 log files, older logs will be overwritten.
Answer: B,D
Explanation:
Once the trace has generated 10 log files, older logs will be overwritten. - This is generally true if the configuration includes a file count limit and the 'world-readable' flag. Without the 'world-readable' flag, only the file's owner or superuser can read the file. If the 'no-world-readable' flag is set, only the user that created the file and root can read it.
Once the trace has generated 10 log files, the trace process will halt. - This would be true only if the 'files' statement is used without the 'world-readable' or 'no-world-readable' flag. If 'no-world-readable' is set, the trace files are not readable by all users.
NEW QUESTION # 20
You Implement persistent NAT to allow any device on the external side of the firewall to initiate traffic.
Referring to the exhibit, which statement is correct?
- A. The target-host parameter should be used instead of the any-remote-host parameter.
- B. The any-remote-host parameter does not support interface-based NAT and needs an IP pod to work.
- C. The target-host-port parameter should be used instead of the any-remote-host parameter
- D. The port-overloading parameter needs to be turned off in the NAT source interface configuration
Answer: B
NEW QUESTION # 21
Exhibit:
You are troubleshooting a new IPsec VPN that is configured between your corporate office and the RemoteSite1 SRX Series device. The VPN is not currently establishing. The RemoteSite1 device is being assigned an IP address on its gateway interface using DHCP.
Which action will solve this problem?
- A. On both devices, change the IKE policy proposal set to basic.
- B. On the RemoteSite1 device, change the IKE gateway external interface to st0.0.
- C. On both devices, change the IKE version to use version 2 only.
- D. On both devices, change the IKE policy mode to aggressive.
Answer: D
Explanation:
Aggressive mode is required when an IP address is dynamically assigned, such as through DHCP, as it allows for faster establishment with less identity verification. More details are available in Juniper IKE and IPsec Configuration Guide.
The configuration shown in the exhibit highlights that the RemoteSite1 SRX Series device is using DHCP to obtain an IP address for its external interface (ge-0/0/2). This introduces a challenge in IPsec VPN configurations when the public IP address of the remote site is not static, as is the case here.
Aggressive mode in IKE (Internet Key Exchange) is designed for situations where one or both peers have dynamically assigned IP addresses. In this scenario, aggressive mode allows the devices to exchange identifying information, such as hostnames, rather than relying on static IP addresses, which is necessary when the remote peer (RemoteSite1) has a dynamic IP from DHCP.
* Correct Action (D): Changing the IKE policy mode to aggressive will resolve the issue by allowing the two devices to establish the VPN even though one of them is using DHCP. In aggressive mode, the initiator can present its identity (hostname) during the initial handshake, enabling the VPN to be established successfully.
* Incorrect Options:
* Option A: Changing the external interface to st0.0 is incorrect because the st0 interface is used for the tunnel interface, not for the IKE negotiation.
* Option B: Changing to IKE version 2 would not resolve the dynamic IP issue directly, and IKEv1 works in this scenario.
* Option C: Changing the IKE proposal set to basic doesn't address the dynamic IP challenge in this scenario.
Juniper References:
* Juniper IKE and VPN Documentation: Provides details on when to use aggressive mode, especially when a dynamic IP address is involved.
NEW QUESTION # 22
You have deployed automated threat mitigation using Security Director with Policy Enforcer, Juniper ATP Cloud, SRX Series devices, Forescout, and third-party switches.
In this scenario, which device is responsible for communicating directly to the third-party switches when infected hosts need to be blocked?
- A. Policy Enforcer
- B. Forescout
- C. Juniper ATP Cloud
- D. SRX Series device
Answer: B
Explanation:
In the described scenario, Forescout is responsible for communicating with the third-party switches to enforce mitigation actions when infected hosts are detected. Forescout integrates with Policy Enforcer and other network security products to provide dynamic network access control. When an infected host is detected by Juniper ATP Cloud or SRX devices, Forescout interacts with the switches to enforce the quarantine or block policy, ensuring that the compromised device is isolated from the network.
Forescout manages the access control lists (ACLs) or other blocking mechanisms on the third-party switches, while Policy Enforcer coordinates with different systems like SRX devices and ATP Cloud for real-time threat mitigation.
NEW QUESTION # 23
Click the Exhibit button.
When attempting to enroll an SRX Series device to JATP, you receive the error shown in the exhibit.
What is the cause of the error?
- A. A firewall is blocking HTTPS on fxp0
- B. The SRX Series device certificate does not match the JATP certificate
- C. The fxp0 IP address is not routable
- D. The SRX Series device does not have an IP address assigned to the interface that accesses JATP
Answer: D
Explanation:
Reference:
https://kb.juniper.net/InfoCenter/index?page=content&id=KB33979&cat=JATP_SERIES&actp=LIST
NEW QUESTION # 24
your company wants to take your juniper ATP appliance into private mode. You must give them a list of impacted features for this request.
Which two features are impacted in this scenario? (Choose two)
- A. False Positive Reporting
- B. Threat Progression Monitoring
- C. Cyber Kill Chain mapping
- D. GSS Telemetry
Answer: A,D
Explanation:
Your company wants to take your Juniper ATP Appliance into private mode. You must give them a list of impacted features for this request.
The two features that are impacted in this scenario are:
A) False Positive Reporting. False Positive Reporting is a feature that allows you to report false positive detections to Juniper Networks for analysis and improvement. False Positive Reporting requires an Internet connection to send the reports to Juniper Networks. If you take your Juniper ATP Appliance into private mode, False Positive Reporting will be disabled and you will not be able to report false positives1.
C) GSS Telemetry. GSS Telemetry is a feature that allows you to send anonymized threat data to Juniper Networks for analysis and improvement. GSS Telemetry requires an Internet connection to send the data to Juniper Networks. If you take your Juniper ATP Appliance into private mode, GSS Telemetry will be disabled and you will not be able to contribute to the threat intelligence community2.
The other options are incorrect because:
B) Threat Progression Monitoring. Threat Progression Monitoring is a feature that allows you to monitor the threat activity and progression across your network. Threat Progression Monitoring does not require an Internet connection and can be performed locally by the Juniper ATP Appliance. If you take your Juniper ATP Appliance into private mode, Threat Progression Monitoring will not be impacted and you will still be able to monitor the threat activity and progression3.
D) Cyber Kill Chain mapping. Cyber Kill Chain mapping is a feature that allows you to map the threat activity and progression to the stages of the Cyber Kill Chain framework. Cyber Kill Chain mapping does not require an Internet connection and can be performed locally by the Juniper ATP Appliance. If you take your Juniper ATP Appliance into private mode, Cyber Kill Chain mapping will not be impacted and you will still be able to map the threat activity and progression4.
Reference: False Positive Reporting GSS Telemetry
Threat Progression Monitoring Cyber Kill Chain Mapping
NEW QUESTION # 25
Exhibit
Your company recently acquired a competitor. You want to use using the same IPv4 address space as your company.
Referring to the exhibit, which two actions solve this problem? (Choose two)
- A. Configure static NAT on the SRX Series devices.
- B. Configure IPsec Transport mode.
- C. Connect the competitor network using IPsec policy-based VPNs.
- D. Identify two neutral IPv4 address spaces for address translation.
Answer: A,C
NEW QUESTION # 26
You are asked to share threat intelligence from your environment with third party tools so that those tools can be identify and block lateral threat propagation from compromised hosts.
Which two steps accomplish this goal? (Choose Two)
- A. Configure application tokens in the SRX Series firewalls to limit who has access
- B. Enable SRX Series firewalls to share Threat intelligence with third party tool.
- C. Configure application tokens in the Juniper ATP Cloud to limit who has access
- D. Enable Juniper ATP Cloud to share threat intelligence
Answer: C,D
Explanation:
To share threat intelligence from your environment with third party tools, you need to enable Juniper ATP Cloud to share threat intelligence and configure application tokens in the Juniper ATP Cloud to limit who has access. The other options are incorrect because:
A) Configuring application tokens in the SRX Series firewalls is not necessary or sufficient to share threat intelligence with third party tools. Application tokens are used to authenticate and authorize requests to the Juniper ATP Cloud API, which can be used to perform various operations such as submitting files, querying C&C feeds, and managing allowlists and blocklists1. However, to share threat intelligence with third party tools, you need to enable the TAXII service in the Juniper ATP Cloud, which is a different protocol for exchanging threat information2.
D) Enabling SRX Series firewalls to share threat intelligence with third party tools is not possible or supported. SRX Series firewalls can send potentially malicious objects and files to the Juniper ATP Cloud for analysis and receive threat intelligence from the Juniper ATP Cloud to block malicious traffic3.
However, SRX Series firewalls cannot directly share threat intelligence with third party tools. You need to use the Juniper ATP Cloud as the intermediary for threat intelligence sharing. Therefore, the correct answer is B and C. You need to enable Juniper ATP Cloud to share threat intelligence and configure application tokens in the Juniper ATP Cloud to limit who has access.
To do so, you need to perform the following steps:
Enable and configure the TAXII service in the Juniper ATP Cloud. TAXII (Trusted Automated eXchange of Indicator Information) is a protocol for communication over HTTPS of threat information between parties.
STIX (Structured Threat Information eXpression) is a language used for reporting and sharing threat information using TAXII. Juniper ATP Cloud can contribute to STIX reports by sharing the threat intelligence it gathers from file scanning. Juniper ATP Cloud also uses threat information from STIX reports as well as other sources for threat prevention2. To enable and configure the TAXII service, you need to select Configure > Threat Intelligence Sharing in the Juniper ATP Cloud WebUI, move the knob to the right to Enable TAXII, and move the slidebar to designate a file sharing threshold2. Configure application tokens in the Juniper ATP Cloud. Application tokens are used to authenticate and authorize requests to the Juniper ATP Cloud API and the TAXII service. You can create and manage application tokens in the Juniper ATP Cloud WebUI by selecting Configure > Application Tokens. You can specify the name, description, expiration date, and permissions of each token. You can also revoke or delete tokens as needed. You can use the application tokens to limit who has access to your shared threat intelligence by granting or denying permissions to the TAXII service1.
Reference: Threat Intelligence Open API Setup Guide
Configure Threat Intelligence Sharing
About Juniper Advanced Threat Prevention Cloud
NEW QUESTION # 27
You want to bypass IDP for traffic destined to social media sites using APBR, but it is not working and IDP is dropping the session.
What are two reasons for this problem? (Choose two.)
- A. The APBR rule does a match on the first packet.
- B. The session did not properly reclassify midstream to the correct APBR rule.
- C. The application services bypass is not configured on the APBR rule.
- D. IDP disable is not configured on the APBR rule.
Answer: B,C
Explanation:
* Explanation of Answer A (Session Reclassification):
* APBR (Advanced Policy-Based Routing) requires the session to be classified based on the specified rule, which can change midstream as additional packets are processed. If the session was already established before the APBR rule took effect, the traffic may not be correctly reclassified to match the new APBR rule, leading to IDP (Intrusion Detection and Prevention) processing instead of being bypassed. This can occur especially when the session was already established before the rule change.
* Explanation of Answer C (Application Services Bypass):
* For APBR to work and bypass the IDP service, the application services bypass must be explicitly configured. Without this configuration, the APBR rule may redirect the traffic, but the IDP service will still inspect and potentially drop the traffic. This is especially important for traffic destined for specific sites like social media platforms where bypassing IDP is desired.
Example configuration for bypassing IDP services:
bash
set security forwarding-options advanced-policy-based-routing profile <profile-name> application-services- bypass Step-by-Step Resolution:
* Reclassify the Session Midstream:
* If the traffic was already being processed before the APBR rule was applied, ensure that the session is reclassified by terminating the current session or ensuring the APBR rule is applied from the start.
Command to clear the session:
bash
clear security flow session destination-prefix <ip-address>
* Configure Application Services Bypass:
* Ensure that the APBR rule includes the application services bypass configuration to properly bypass IDP or any other security services for traffic that should not be inspected.
Example configuration:
bash
set security forwarding-options advanced-policy-based-routing profile <profile-name> application-services- bypass Juniper Security Reference:
* Session Reclassification in APBR: APBR requires reclassification of sessions in real-time to ensure midstream packets are processed by the correct rule. This is crucial when policies change dynamically or new rules are added.
* Application Services Bypass in APBR: This feature ensures that security services such as IDP are bypassed for traffic that matches specific APBR rules. This is essential for applications where performance is a priority and security inspection is not necessary.
NEW QUESTION # 28
You are asked to establish a hub-and-spoke IPsec VPN using an SRX Series device as the hub. All of the spoke devices are third-party devices.
Which statement is correct in this scenario?
- A. You must statically configure the next-hop tunnel binding table entries for each of the third-party spoke devices.
- B. You must create a policy-based VPN on the hub device when peering with third-party devices.
- C. You must ensure that you are using aggressive mode when incorporating third-party devices as your spokes.
- D. You must always peer using loopback addresses when using non-Junos devices as your spokes.
Answer: A
Explanation:
To ensure compatibility with third-party devices, next-hop tunnel binding must be manually configured, as dynamic protocols may not be universally supported. This ensures proper routing and secure connections. See Juniper IPsec VPN Configuration Guide.
In a hub-and-spoke IPsec VPN configuration where an SRX device serves as the hub and the spokes are third- party devices, special considerations must be taken into account due to the variability in VPN implementations across different vendors.
* Next-Hop Tunnel Binding (Correct: Option B):With third-party devices as spokes, dynamic routing protocols (like NHRP) may not be supported for dynamically learning spoke routes. In such cases, the next-hop tunnel binding tablemust be statically configured for each spoke on the SRX hub to ensure proper routing and VPN communication. This ensures that traffic between the spokes is routed correctly through the hub.
* Incorrect Options:
* Option Ais incorrect because aggressive mode is typically less secure and not recommended for hub-and-spoke topologies, especially with third-party devices.
* Option Cis incorrect because a route-based VPN is usually preferred when peering with third- party devices for flexibility and scalability.
* Option Dis incorrect because using loopback addresses is not a requirement when peering with third-party devices. It is a common practice in certain designs, but it is not mandatory.
Juniper References:
* Juniper IPsec VPN Configuration Guide: Provides insights on hub-and-spoke VPN configurations, including next-hop tunnel binding and considerations when working with third-party devices.
NEW QUESTION # 29
You are required to secure a network against malware. You must ensure that in the event that a compromised host is identified within the network.
In this scenario after a threat has been identified, which two components are responsible for enforcing MAC-level infected host?
- A. Juniper ATP Appliance
- B. SRX Series device
- C. Policy Enforcer
- D. EX Series device
Answer: C,D
Explanation:
You are required to secure a network against malware. You must ensure that in the event that a compromised host is identified within the network, the host is isolated from the rest of the network.
In this scenario, after a threat has been identified, the two components that are responsible for enforcing MAC-level infected host are:
C) Policy Enforcer. Policy Enforcer is a software solution that integrates with Juniper ATP Cloud and Juniper ATP Appliance to provide automated threat remediation across the network. Policy Enforcer can receive threat intelligence feeds from Juniper ATP Cloud or Juniper ATP Appliance and apply them to the security policies on the SRX Series devices and the EX Series devices. Policy Enforcer can also enforce MAC-level infected host, which is a feature that allows you to quarantine a compromised host by blocking its MAC address on the switch port. Policy Enforcer can communicate with the EX Series devices and instruct them to apply the MAC-level infected host policy to the infected host1.
D) EX Series device. EX Series devices are Ethernet switches that can provide Layer 2 and Layer 3 switching capabilities and security features. EX Series devices can integrate with Policy Enforcer and Juniper ATP Cloud or Juniper ATP Appliance to provide automated threat remediation across the network. EX Series devices can support MAC-level infected host, which is a feature that allows them to quarantine a compromised host by blocking its MAC address on the switch port. EX Series devices can receive instructions from Policy Enforcer and apply the MAC-level infected host policy to the infected host2.
The other options are incorrect because:
A) SRX Series device. SRX Series devices are high-performance firewalls that can provide Layer 3 and Layer 4 security features and integrate with Juniper ATP Cloud or Juniper ATP Appliance to provide advanced threat prevention. SRX Series devices can receive threat intelligence feeds from Juniper ATP Cloud or Juniper ATP Appliance and apply them to the security policies. However, SRX Series devices cannot enforce MAC-level infected host, which is a feature that requires Layer 2 switching capabilities and is supported by EX Series devices3.
B) Juniper ATP Appliance. Juniper ATP Appliance is a hardware solution that provides advanced threat prevention by detecting and blocking malware, ransomware, and other cyberattacks. Juniper ATP Appliance can analyze the network traffic and identify the compromised hosts based on their behavior and communication patterns. Juniper ATP Appliance can also send threat intelligence feeds to Policy Enforcer and SRX Series devices to enable automated threat remediation across the network. However, Juniper ATP Appliance cannot enforce MAC-level infected host, which is a feature that requires Layer 2 switching capabilities and is supported by EX Series devices.
Reference: Policy Enforcer Overview EX Series Switches Overview
SRX Series Services Gateways Overview [Juniper ATP Appliance Overview]
NEW QUESTION # 30
Which two statements about transparent mode and Ethernet switching mode on an SRX series device are correct.
- A. In Ethernet switching mode, IRB interfaces must be placed in a security zone.
- B. In transparent mode, Layer 2 interfaces must be placed in a security zone.
- C. In transparent mode, IRB interfaces must be placed in a security zone.
- D. In Ethernet switching mode, Layer 2 interfaces must be placed in a security zone.
Answer: A,B
NEW QUESTION # 31
Exhibit
You configure Source NAT using a pool of addresses that are in the same subnet range as the external ge-0/0/0 interface on your vSRX device. Traffic that is exiting the internal network can reach external destinations, but the return traffic is being dropped by the service provider router.
Referring to the exhibit, what must be enabled on the vSRX device to solve this problem?
- A. DNS Doctoring
- B. Proxy ARP
- C. STUN
- D. Persistent NAT
Answer: A
NEW QUESTION # 32
Exhibit:
Referring to the exhibit, which two statements are true? (Choose two.)
- A. Hosts in the Local zone can communicate with hosts in the Trust zone with a security policy.
- B. An IRB interface is required to enable communication between the Trust and the Untrust zones.
- C. You can configure security policies for traffic flows between hosts in the Local zone.
- D. Hosts in the Local zone can be enabled for control plane access to the SRX.
Answer: A,B
Explanation:
The Local zone represents a Layer 2 segment, which allows for traffic flows within the same zone and across other zones with proper security policies. Additionally, hosts in different zones (such as Local and Trust) can communicate when policies are defined to allow such interactions. Refer to Juniper Security Policy Documentation for detailed guidance.
From the exhibit:
* IRB Interface Requirement (Answer B): To allow communication between the Trust and Untrust zones (Layer 2 and Layer 3 environments), anIRB (Integrated Routing and Bridging)interface is required. The IRB interface acts as a gateway between Layer 2 and Layer 3 domains.
Command Example:
bash
Copy code
set interfaces irb unit 0 family inet address 10.1.1.1/24
set security zones security-zone untrust interfaces irb.0
* Communication Between Local and Trust (Answer D): Hosts in the Local zone (Layer 2) can communicate with hosts in the Trust zone (Layer 3) if appropriate security policies are in place. A security policy is needed to define how traffic can flow between these zones.
Command Example:
bash
Copy code
set security policies from-zone local to-zone trust policy allow-local-trust match source-address any destination-address any application any set security policies from-zone local to-zone trust policy allow-local-trust then permit These configurations ensure proper communication between zones in a mixed Layer 2 and Layer
3environment.
NEW QUESTION # 33
Your company wants to use the Juniper Seclntel feeds to block access to known command and control servers, but they do not want to use Security Director to manage the feeds.
Which two Juniper devices work in this situation? (Choose two)
- A. EX Series devices
- B. QFX Series devices
- C. SRX Series devices
- D. MX Series devices
Answer: C,D
NEW QUESTION # 34
A user reports that a specific application is not working properly. This application makes multiple connection to the server and must have the same address every time from a pool and this behavior needs to be changed.
What would solve this problem?
- A. Use DNS doctoring.
- B. Use the address-persistent parameter.
- C. Use STUN.
- D. Use the persistent-nat parameter.
Answer: D
NEW QUESTION # 35
Exhibit
Referring to the exhibit, which two statements are true? (Choose two.)
- A. The data that traverses the ge-0/070 interface is secured by a secure association key.
- B. The data that traverses the ge-070/0 interface cannot be intercepted and read by anyone.
- C. The data that traverses the ge-O/0/0 interface is secured by a connectivity association key.
- D. The data that traverses the ge-070/0 interface can be intercepted and read by anyone.
Answer: B,D
NEW QUESTION # 36
Exhibit:
Referring to the exhibit, a default static route on SRX-1 sends all traffic to ISP-A. You have configured APBR to send all requests for streaming video traffic to ISP-B. However, the return traffic from the streaming video server is coming through ISP-A, and the traffic is being dropped by SRX-1. You can only make changes on SRX-1.
How do you solve this problem?
- A. Configure BGP to control the return path of the streaming video traffic.
- B. Place both ISP-facing interfaces in the same zone.
- C. Enable AppTrack to keep track of the sessions and zones for the streaming video traffic.
- D. Change the APBR routing instance from a forwarding instance to a virtual router instance.
Answer: D
Explanation:
A virtual router instance allows for independent routing tables, which helps manage asymmetric routing issues in APBR configurations. This ensures both initial and return traffic follow the same path, resolving session issues. Further details: Juniper APBR Configuration.
The issue in the scenario stems from asymmetric routing. The SRX-1 device sends streaming traffic to ISP-B (as intended) using APBR, but the return traffic is coming back through ISP-A due to the default route.
Because APBR uses forwarding instances, the traffic is dropped when it returns through a different zone.
To solve this:
* Change APBR routing instance to a virtual router (Answer B): By changing the APBR routing instance to a virtual router, the SRX will maintain separate routing tables for each ISP, ensuring proper bidirectional traffic flow. Virtual routers provide independent routing tables and are ideal for ensuring traffic symmetry in multi-homed environments.
Example Command:
bash
Copy code
set routing-instances ISP-B instance-type virtual-router
set routing-instances ISP-B routing-options static route 0.0.0.0/0 next-hop 192.0.2.1 By implementing virtual routing instances, you can resolve the asymmetry and ensure that both outbound and return traffic use the same ISP.
NEW QUESTION # 37
You are asked to connect two hosts that are directly connected to an SRX Series device. The traffic should flow unchanged as it passes through the SRX, and routing or switch lookups should not be performed.
However, the traffic should still be subjected to security policy checks.
What will provide this functionality?
- A. Secure wire
- B. Mixed mode
- C. Transparent mode
- D. MACsec
Answer: A
Explanation:
Secure wire mode on SRX devices allows traffic to flow transparently through the firewall without being routed or switched, while still applying security policies. This is ideal for scenarios wheretraffic inspection is required without altering the traffic path or performing additional routing decisions. For further details on Secure Wire, refer to Juniper Secure Wire Documentation.
In this scenario, you want traffic to pass through the SRX unchanged (without routing or switching lookups) but still be subject to security policy checks. The best solution for this requirement isSecure Wire.
* Explanation of Answer C (Secure Wire):
* Secure Wireallows traffic to flow through the SRX without any Layer 3 routing or Layer 2 switching decisions. It effectively bridges two interfaces at Layer 2 while still applying security policies. This ensures that traffic remains unchanged, while security policies (such as firewall rules) can still be enforced.
* This is an ideal solution when you need the SRX to act as a "bump in the wire" for security enforcement without changing the traffic or performing complex network lookups.
Juniper Security Reference:
* Secure Wire Functionality: Provides transparent Layer 2 forwarding with security policy enforcement, making it perfect for scenarios where traffic needs to pass through unchanged. Reference: Juniper Secure Wire Documentation.
NEW QUESTION # 38
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