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The JN0-335 certification exam covers a wide range of topics related to security, including security policies, security zones, NAT, IPsec VPNs, SSL VPNs, Unified Threat Management (UTM), and security management. JN0-335 exam is also designed to test the candidate’s knowledge of the Junos OS and the Juniper Networks SRX Series Services Gateways.
NEW QUESTION # 45
Click the Exhibit button.
You have implemented SSL proxy client protection. After implementing this feature, your users are complaining about the warning message shown in the exhibit.
Which action must you perform to eliminate the warning message?
- A. Import the SRX self-signed CA certificate into the client Web browsers.
- B. Configure the SRX Series device as a trusted site in the client Web browsers.
- C. Regenerate the SRX self-signed CA certificate and include the correct organization name.
- D. Import the SRX self-signed CA certificate into the SRX certificate public store.
Answer: A
NEW QUESTION # 46
You are deploying the Junos application firewall feature in your network.
In this scenario, which two elements are mapped to applications in the application system cache?
(Choose two.)
- A. source port
- B. source IP address
- C. destination port
- D. destination IP address
Answer: C,D
NEW QUESTION # 47
A client has attempted communication with a known command-and-control server and it has reached the configured threat level threshold.
Which feed will the clients IP address be automatically added to in this situation?
- A. the allowlist and blocklist feed
- B. the custom cloud feed
- C. the infected host cloud feed
- D. the command-and-control cloud feed
Answer: C
Explanation:
Infected hosts are internal hosts that have been compromised by malware and are communicating with external C&C servers. Juniper ATP Cloud provides infected host feeds that list internal IP addresses or subnets of infected hosts along with a threat level. Once the Juniper ATP Cloud global threshold for an infected host is met, that host is added to the infected host feed and assigned a threat level of 10 by the cloud. You can also configure your SRX Series device to block traffic from these IP addresses using security policies.
NEW QUESTION # 48
Which security log message format reduces the consumption of CPU and storage?
- A. WELF
- B. binary
- C. structured syslog
- D. BSD syslog
Answer: B
NEW QUESTION # 49
You administer a JSA host and want to include a rule that sets a threshold for excessive firewall denies and sends an SNMP trap after receiving related syslog messages from an SRX Series firewall.
Which JSA rule type satisfies this requirement?
- A. offense
- B. flow
- C. common
- D. event
Answer: D
NEW QUESTION # 50
Which statement regarding Juniper Identity Management Service (JIMS) domain PC probes is true?
- A. JIMS domain PC probes analyze domain controller security event logs at60-mmute intervals by default.
- B. JIMS domain PC probes are triggered to map usernames to group membership information.
- C. JIMS domain PC probes are initiated by an SRX Series device to verify authentication table information.
- D. JIMS domain PC probes are triggered if no username to IP address mapping is found in the domain security event log.
Answer: D
Explanation:
Explanation
JIMS domain PC probes are a mechanism to obtain username to IP address mapping information from devices in a customer's domain. JIMS initiates a domain PC probe when it receives a request from an SRX Series device for a username to IP address mapping that is not found in the domain security event log. JIMS uses the administrative credentials configured for PC probes to access the device and query the Windows Management Instrumentation (WMI) service for the username to IP address mapping12 References:
1: Juniper Identity Management Service Feature Guide - TechLibrary - Juniper Networks
2: Juniper Identity Management Service (JIMS) Documentation - Juniper Networks
NEW QUESTION # 51
Your JIMS server is unable to view event logs.
Which two actions would you take to solve this issue? (Choose two.)
- A. Enable remote event log management within Windows Firewall on the JIMS server.
- B. Enable remote event log management within Windows Firewall on the necessary domain controllers.
- C. Enable the correct host-inbound-traffic rules on the SRX Series devices.
- D. Enable remote event log management within Windows Firewall on the necessary Exchange servers.
Answer: A,B
Explanation:
Explanation
JIMS server is a Windows service application that collects and maintains user, device, and group information from Active Directory domains or syslog sources. JIMS server uses the Windows event logs to obtain user login and logout information from the domain controllers and Exchange servers. Therefore, to enable JIMS server to view the event logs, you need to perform the following actions:
Enable remote event log management within Windows Firewall on the necessary domain controllers and Exchange servers. This allows JIMS server to access the event logs on these servers remotely. You can do this by using the Windows Firewall with Advanced Security snap-in or by using the netsh command.
For example, to enable remote event log management on a domain controller, you can use the following command:
netsh advfirewall firewall set rule group="Remote Event Log Management" new enable=yes Enable remote event log management within Windows Firewall on the JIMS server. This allows JIMS server to receive the event logs from the domain controllers and Exchange servers. You can do this by using the same method as above. For example, to enable remote event log management on the JIMS server, you can use the following command:
netsh advfirewall firewall set rule group="Remote Event Log Management" new enable=yes Option C and Option D show the correct actions for solving this issue. Option A and Option B are incorrect because they are not related to the JIMS server's ability to view the event logs. Host-inbound-traffic rules are used to control the traffic that is allowed to reach the SRX Series devices, not the JIMS server. Enabling remote event log management on the Exchange servers is not necessary if JIMS server does not need to collect user information from them.
References: Juniper Security, Specialist (JNCIS-SEC) Reference Materials and Juniper Security, Professional (JNCIP-SEC) Reference Materials
NEW QUESTION # 52
Click the Exhibit button.
Which two statements describe the output shown in the exhibit? (Choose two.)
- A. Redundancy group 1 was administratively failed over.
- B. Redundancy group 1 experienced an operational failure.
- C. Node 0 is controlling traffic for redundancy group 1.
- D. Node 1 is controlling traffic for redundancy group 1.
Answer: B,D
Explanation:
Explanation
Encrypted Traffic Insights is a feature of Juniper ATP Cloud and SRX Series firewalls that can detect malicious threats that are hidden in encrypted traffic without intercepting and decrypting the traffic. It permits organizations greater visibility and policy control over encrypted traffic, without requiring resource-intensive SSL Decryption1.
Encrypted Traffic Insights assesses the threat of the traffic by using two methods:
It validates the certificates used by the external servers that the internal hosts are trying to connect to. It compares the certificate signatures with a blocklist of known malicious certificates and also checks the certificate validity, issuer, and subject. If the certificate is invalid or matches a malicious signature, the connection is blocked or alerted2.
It reviews the timing and frequency of the connections to the external servers. It uses behavior analysis and machine learning to identify patterns and anomalies that indicate malicious activity, such as command and control (C&C) communications, botnet traffic, or data exfiltration. It also uses threat intelligence feeds to enrich the analysis and provide additional context2.
Encrypted Traffic Insights does not decrypt the file or the data in a sandbox or to validate the hash, as these methods would require breaking the encryption of the traffic, which would violate data privacy laws and introduce latency and performance issues21. References:
3: SRX5400, SRX5600, SRX5800 Firewalls Datasheet - Juniper Networks
2: Encrypted Traffic Insights Overview and Benefits | ATP Cloud | Juniper ...
1: Juniper Networks Expands Connected Security Portfolio with Encrypted ...
NEW QUESTION # 53
Regarding static attack object groups, which two statements are true? (Choose two.)
- A. Matching attack objects are automatically added to a custom group.
- B. You must manually add matching attack objects to a custom group.
- C. Group membership does not automatically change when Juniper updates the IPS signature database.
- D. Group membership automatically changes when Juniper updates the IPS signature database.
Answer: B,C
Explanation:
Explanation
Static attack object groups are predefined groups of attack objects that are included in Juniper's IPS signature database. These groups do not change automatically when Juniper updates the database. You must manually add matching attack objects to a custom group34 References:
Attack Objects and Object Groups for IDP Policies | Junos OS
Attack Objects and Object Groups for IDP Policies on NFX Devices
NEW QUESTION # 54
You have deployed JSA and you need to view events and network activity that match rule criteria.
You must view this data using a single interface.
Which JSA feature should you use in this scenario?
- A. Log Collector
- B. Offense Manager
- C. Network Activity
- D. Assets
Answer: C
NEW QUESTION # 55
Exhibit
Which two statements are correct about the configuration shown in the exhibit? (Choose two.)
- A. Every session that enters the SRX Series device will generate an event
- B. The session-class parameter in only used when troubleshooting.
- C. Replacing the session-init parameter with session-lose will log unidentified flows.
- D. The others 300 parameter means unidentified traffic flows will be dropped in 300 milliseconds.
Answer: A,D
Explanation:
The configuration shown in the exhibit is for a Juniper SRX Series firewall. The session-init parameter is used to control how the firewall processes unknown traffic flows. With the session-init parameter set to 300, any traffic flows that the firewall does not recognize will be dropped after 300 milliseconds. Additionally, every session that enters the device, whether it is known or unknown, will generate an event, which can be used for logging and troubleshooting purposes. The session-lose parameter is used to control how the firewall handles established sessions that are terminated.
NEW QUESTION # 56
Referring to the configuration shown in the exhibit, which two statements are true? (Choose two.)
- A. The syslog is configured for a user facility.
- B. The syslog is configured for an info facility.
- C. The log is being stored on the local Routing Engine.
- D. The log is being sent to a remote server.
Answer: A,D
NEW QUESTION # 57
Which two statements are true about the fab interface in a chassis cluster? (Choose two.)
- A. The fab link supports traditional interface features.
- B. The fab link does not support fragmentation.
- C. The Junos OS supports only one fab link.
- D. The physical interface for the fab link must be specified in the configuration.
Answer: C,D
Explanation:
Explanation
The fab interface is a physical connection between two nodes of a chassis cluster that is used to forward traffic and synchronize session state between the nodes. The fab interface can be any pair of Ethernet interfaces on the same LAN, but they must be the same media type. You need to specify the physical interfaces to be used for the fab link in the configuration, as the system does not determine them automatically. The Junos OS supports only one fab link per node, and it does not support traditional interface features such as IP addressing, routing protocols, or firewall filters. The fab interface is assigned an internally derived IP address by the system for packet transmission. Thefab link also does not support fragmentation, so the MTU size of the fab interface must be equal to or greater than the MTU size of the largest interface in the cluster. References:
Chassis Cluster Fabric Interfaces
HA Chassis cluster, difference between Swfab and Fab
NEW QUESTION # 58
Referring to the exhibit, which two statements are true? (Choose two.)
- A. The IP address of the authenticating domain controller is 172.25.11.140.
- B. Nancy is a member of the Active Directory sales group.
- C. Nancy logged in to the juniper.net Active Directory domain.
- D. The IP address of Nancy's client PC is 172.25.11.
Answer: A
NEW QUESTION # 59
What are two benefits of using a vSRX in a software-defined network? (Choose two.)
- A. no required software license
- B. scalability
- C. granular security
- D. infinite number of interfaces
Answer: B,C
Explanation:
Scalability: vSRX instances can be easily added or removed as the needs of the network change, making it a flexible option for scaling in a software-defined network. Granular Security: vSRX allows for granular security policies to be enforced at the virtual interface level, making it an effective solution for securing traffic in a software-defined network.
The two benefits of using a vSRX in a software-defined network are scalability and granular security. Scalability allows you to increase the number of resources available to meet the demands of network traffic, while granular security provides a level of control and flexibility to your network security that is not possible with a traditional firewall. With a vSRX, you can create multiple levels of security policies, rules, and access control lists to ensure that only authorized traffic can enter and exit your network. Additionally, you would not require a software license to use the vSRX, making it an economical solution for those looking for increased security and flexibility.
NEW QUESTION # 60
What is the default timeout for a TCP session on an SRX Series device?
- A. 30 minutes
- B. 1 hour
- C. 30 seconds
- D. 1 minute
Answer: A
NEW QUESTION # 61
Which two statements are correct about the fab interface in a chassis cluster? (Choose two.)
- A. Heartbeat signals sent on the fab interface monitor the health of the control plane link.
- B. The fab interface enables configuration synchronization.
- C. Real-time objects (RTOs) are exchanged on the fab interface to maintain session synchronization.
- D. In an active/active configuration, inter-chassis transit traffic is sent over the fab interface.
Answer: C,D
NEW QUESTION # 62
When trying to set up a server protection SSL proxy, you receive the error shown. What are two reasons for this error? (Choose two.)
- A. The SSL proxy certificate ID does not have the correct renegotiation option set.
- B. The SSL proxy certificate ID does not exist.
- C. The SSL proxy certificate ID is for a forwarding proxy.
- D. The SSL proxy certificate ID is part of a blocklist.
Answer: B,C
NEW QUESTION # 63
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The JN0-335 exam is a specialist-level exam, which means that it is designed for individuals with a solid understanding of networking basics and security concepts. Candidates who successfully pass the exam will earn the Juniper Networks Certified Specialist Security (JNCIS-SEC) certification, which is recognized worldwide as a symbol of excellence in network security.
The JNCIS-SEC certification is an industry-recognized credential that validates the skills and knowledge of professionals in the field of network security. Security, Specialist (JNCIS-SEC) certification is highly regarded by employers and can lead to better job opportunities and higher salaries. It is also a valuable asset for those who want to advance their careers in the field of network security.
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