What are two properties negotiated during IKE Phase 2? (Choose two.)
Correct Answer: B,D
The correct answers are B and D. IKE Phase 2 negotiates the IPsec security associations used to protect actual user data through the VPN tunnel. Juniper explains that after Phase 1 establishes a secure authenticated channel, Phase 2 negotiates SAs for the data transmitted through the IPsec tunnel. A Phase 2 proposal includes the IPsec security protocol, which is either ESP or AH, along with selected encryption and authentication algorithms. In the wording of this question, that maps to the tunnel/security protocol property. Option D, Perfect Forward Secrecy, is also correct because Phase 2 proposals can specify a Diffie-Hellman group when PFS is desired. PFS forces a new DH key exchange for Phase 2 keys so that compromise of earlier keying material does not expose later IPsec encryption keys. Option A is wrong because routing protocols are not negotiated by IKE Phase 2; routing is handled separately over or toward the tunnel interface. Option C is wrong because aggressive mode is an IKEv1 Phase 1 exchange mode, not a Phase 2 property. Juniper specifically states that Phase 2 always uses quick mode in IKEv1. Reference topics: IKE Phase 2, IPsec SA negotiation, ESP/AH, Perfect Forward Secrecy, quick mode.
Question 7
On an SRX Series firewall, what are two ways that Encrypted Traffic Insights assess the threat of the traffic? (Choose two.)
Correct Answer: B,D
Encrypted Traffic Insights is a feature that enables the SRX Series firewall and the ATP Cloud to detect malicious threats that are hidden in encrypted traffic without decrypting the traffic. It does so by analyzing the metadata and connection patterns of the encrypted sessions. Two ways that Encrypted Traffic Insights assess the threat of the traffic are: It validates the certificates used: The SRX Series firewall extracts the server certificate from the encrypted session and compares its signature with a blocklist of known malicious certificates provided by ATP Cloud. If there is a match, the session is blocked and reported as a threat. It reviews the timing and frequency of the connections: The SRX Series firewall sends the connection details, such as source and destination IP addresses, ports, protocols, and timestamps, to ATP Cloud. ATP Cloud applies behavior analysis and machine learning algorithms to detect anomalous or suspicious patterns of connections, such as high frequency, low duration, or unusual timing. Reference: = Juniper Networks Expands Connected Security Portfolio with Encrypted Traffic Analysis for Juniper Advanced Threat Prevention and SecIntel for Mist Wireless, Encrypted Traffic Insights Overview, Configure Encrypted Traffic Insights
Question 8
Click the Exhibit button. Which two statements describe the output shown in the exhibit? (Choose two.)
Correct Answer: C,D
The output indicates that node1 has a priority of 200 and is marked as "Primary," which means it is currently the active node controlling traffic for redundancy group 1. The "Primary" status designates that this node is handling the traffic for the specified redundancy group. According to the exhibit, node0 is listed with a priority of 0 and is marked as "Secondary." This status indicates that node0 is currently not controlling traffic for redundancy group 1, serving instead in a standby role ready to take over should node1 fail or become unavailable.
Question 9
You are asked to ensure that if the session table on your SRX Series device gets close to exhausting its resources, that you enforce a more aggress.ve age-out of existing flows. In this scenario, which two statements are correct? (Choose two.)
Correct Answer: B,D
The early-ageout configuration specifies the timeout value, in seconds, that will be applied once the high- watermark value is met. The high-watermark configuration specifies the percentage of how much of the session table can be allocated before applying a more aggressive age-out timer. This ensures that the session table does not become full and cause traffic issues, and also ensures that existing flows are aged out quickly when the table begins to get close to being full.
Question 10
Which two functions does Juniper ATP Cloud perform to reduce delays in the inspection of files? (Choose two.)
Correct Answer: A,D
Juniper ATP Cloud is a cloud-based service that provides advanced threat prevention and detection for your network. It integrates with SRX Series firewalls and MX Series routers to analyze files and network traffic for signs of malicious activity. Two functions that Juniper ATP Cloud performs to reduce delays in the inspection of files are: Juniper ATP Cloud allows the creation of allowlists: Allowlists are lists of trusted files or file hashes that are excluded from scanning by Juniper ATP Cloud. You can create allowlists based on file name, file type, file size, file hash, or sender domain. By using allowlists, you can reduce the number of files that need to be uploaded to Juniper ATP Cloud for analysis and improve the performance and efficiency of your network. Juniper ATP Cloud performs a cache lookup on files: Cache lookup is a process that checks if a file has been previously scanned by Juniper ATP Cloud and if there is a cached verdict for it. If there is a cached verdict, Juniper ATP Cloud returns it immediately without scanning the file again. If there is no cached verdict, Juniper ATP Cloud uploads the file for analysis. By using cache lookup, you can reduce the time and bandwidth required for scanning files by Juniper ATP Cloud. Reference: = [Juniper Advanced Threat Prevention Cloud (ATP Cloud)], [Configuring Allowlists], [Understanding Cache Lookup]
