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NEW QUESTION # 57
The PAN-OS User-ID integrated agent is included with PAN-OS software and comes in which two forms?
(Choose two.)
Answer: A,C
Explanation:
User-ID is a feature in PAN-OS that maps IP addresses to usernames by integrating with various directory services (e.g., Active Directory). User-ID can be implemented through agents provided by Palo Alto Networks. Here's how each option applies:
* Option A: Integrated agent
* The integrated User-ID agent is built into PAN-OS and does not require an external agent installation. It is configured directly on the firewall and integrates with directory services to retrieve user information.
* This is correct.
* Option B: GlobalProtect agent
* GlobalProtect is Palo Alto Networks' VPN solution and does not function as a User-ID agent.
While it can be used to authenticate users and provide visibility, it is not categorized as a User-ID agent.
* This is incorrect.
* Option C: Windows-based agent
* The Windows-based User-ID agent is a standalone agent installed on a Windows server. It collects user mapping information from directory services and sends it to the firewall.
* This is correct.
* Option D: Cloud Identity Engine (CIE)
* The Cloud Identity Engine provides identity services in a cloud-native manner but isnot a User- ID agent. It synchronizes with identity providers like Azure AD and Okta.
* This is incorrect.
References:
* Palo Alto Networks documentation on User-ID
* Knowledge Base article on User-ID Agent Options
NEW QUESTION # 58
Which initial action can a network security engineer take to prevent a malicious actor from using a file- sharing application for data exfiltration without impacting users who still need to use file-sharing applications?
Answer: D
Explanation:
To prevent malicious actors from abusing file-sharing applications for data exfiltration,App-IDprovides a granular approach to managing application traffic. Palo Alto Networks'App-IDis a technology that identifies applications traversing the network, regardless of port, protocol, encryption (SSL), or evasive tactics. By leveraging App-ID, security engineers can implement policies that restrict the use of specific applications or functionalities based on job functions, ensuring that only authorized users or groups can use file-sharing applications while blocking unauthorized or malicious usage.
Here's why the options are evaluated this way:
* Option A:DNS Security focuses on identifying and blocking malicious domains. While it plays a critical role in preventing certain attacks (like command-and-control traffic), it is not effective for managing application usage. Hence, this is not the best approach.
* Option B (Correct):App-ID provides the ability to identify file-sharing applications (such as Dropbox, Google Drive, or OneDrive) and enforce policies to restrict their use. For example, you can create a security rule allowing file-sharing apps only for specific job functions, such as HR or marketing, while denying them for other users. This targeted approach ensures legitimate business needs are not disrupted, which aligns with the requirement of not impacting valid users.
* Option C:Blocking all file-sharing applications outright using DNS Security is a broad measure that will indiscriminately impact legitimate users. This does not meet the requirement of allowing specific users to continue using file-sharing applications.
* Option D:While App-ID can block file-sharing applications outright, doing so will prevent legitimate usage and is not aligned with the requirement to allow usage based on job functions.
How to Implement the Solution (Using App-ID):
* Identify the relevant file-sharing applications using App-ID in Palo Alto Networks' predefined application database.
* Create security policies that allow these applications only for users or groups defined in your directory (e.g., Active Directory).
* Use custom App-ID filters or explicit rules to control specific functionalities of file-sharing applications, such as uploads or downloads.
* Monitor traffic to ensure that only authorized users are accessing the applications and that no malicious activity is occurring.
References:
* Palo Alto Networks Admin Guide: Application Identification and Usage Policies.
* Best Practices for App-ID Configuration: https://docs.paloaltonetworks.com
NEW QUESTION # 59
A prospective customer wants to validate an NGFW solution and seeks the advice of a systemsengineer (SE) regarding a design to meet the following stated requirements:
"We need an NGFW that can handle 72 Gbps inside of our core network. Our core switches only have up to
40 Gbps links available to which new devices can connect. We cannot change the IP address structure of the environment, and we need protection for threat prevention, DNS, and perhaps sandboxing." Which hardware and architecture/design recommendations should the SE make?
Answer: A
Explanation:
The problem provides several constraints and design requirements that must be carefully considered:
* Bandwidth Requirement:
* The customer needs an NGFW capable of handling a total throughput of 72 Gbps.
* The PA-5445 is specifically designed for high-throughput environments and supports up to81.3 Gbps Threat Prevention throughput(as per the latest hardware performance specifications).
This ensures the throughput needs are fully met with some room for growth.
* Interface Compatibility:
* The customer mentions that their core switches support up to40 Gbps interfaces. The design must include aggregate links to meet the overall bandwidth while aligning with the 40 Gbps interface limitations.
* The PA-5445 supports40Gbps QSFP+ interfaces, making it a suitable option for the hardware requirement.
* No Change to IP Address Structure:
* Since the customer cannot modify their IP address structure, deploying the NGFW inLayer-2 or Virtual Wire modeis ideal.
* Virtual Wire modeallows the firewall to inspect traffic transparently between two Layer-2 devices without modifying the existing IP structure. Similarly, Layer-2 mode allows the firewall to behave like a switch at Layer-2 while still applying security policies.
* Threat Prevention, DNS, and Sandboxing Requirements:
* The customer requires advanced security features likeThreat Preventionand potentially sandboxing(WildFire). The PA-5445 is equipped to handle these functionalities with its dedicated hardware-based architecture for content inspection and processing.
* Aggregate Interface Groups:
* The architecture should includeaggregate interface groupsto distribute traffic across multiple physical interfaces to support the high throughput requirement.
* By aggregating2 x 40Gbps interfaces on both sides of the pathin Virtual Wire or Layer-2 mode, the design ensures sufficient bandwidth (up to 80 Gbps per side).
Why PA-5445 in Layer-2 or Virtual Wire mode is the Best Option:
* Option Asatisfies all the customer's requirements:
* The PA-5445 meets the 72 Gbps throughput requirement.
* 2 x 40 Gbps interfaces can be aggregated to handle traffic flow between the core switches and the NGFW.
* Virtual Wire or Layer-2 mode preserves the IP address structure, while still allowing full threat prevention and DNS inspection capabilities.
* The PA-5445 also supports sandboxing (WildFire) for advanced file-based threat detection.
Why Not Other Options:
Option B:
* The PA-5430 is insufficient for the throughput requirement (72 Gbps). Itsmaximum Threat Prevention throughput is 60.3 Gbps, which does not provide the necessary capacity.
Option C:
* While the PA-5445 is appropriate, deploying it inLayer-3 modewould require changes to the IP address structure, which the customer explicitly stated is not an option.
Option D:
* The PA-5430 does not meet the throughput requirement. Although Layer-2 or Virtual Wire mode preserves the IP structure, the throughput capacity of the PA-5430 is a limiting factor.
References from Palo Alto Networks Documentation:
* Palo Alto Networks PA-5400 Series Datasheet (latest version)
* Specifies the performance capabilities of the PA-5445 and PA-5430 models.
* Palo Alto Networks Virtual Wire Deployment Guide
* Explains how Virtual Wire mode can be used to transparently inspect traffic without changing the existing IP structure.
* Aggregated Ethernet Interface Documentation
* Details the configuration and use of aggregate interface groups for high throughput.
NEW QUESTION # 60
Which two statements correctly describe best practices for sizing a firewall deployment with decryption enabled? (Choose two.)
Answer: A,B
Explanation:
When planning a firewall deployment with SSL/TLS decryption enabled, it is crucial to consider the additional processing overhead introduced by decrypting and inspecting encrypted traffic. Here are the details for each statement:
* Why "SSL decryption traffic amounts vary from network to network" (Correct Answer A)?SSL decryption traffic varies depending on the organization's specific network environment, user behavior, and applications. For example, networks with heavy web traffic, cloud applications, or encrypted VoIP traffic will have more SSL/TLS decryption processing requirements. This variability means each deployment must be properly assessed and sized accordingly.
* Why "Perfect Forward Secrecy (PFS) ephemeral key exchange algorithms such as Diffie-Hellman Ephemeral (DHE) and Elliptic-Curve Diffie-Hellman Exchange (ECDHE) consume more processing resources than Rivest-Shamir-Adleman (RSA) algorithms" (Correct Answer C)?PFS algorithms like DHE and ECDHE generate unique session keys for each connection, ensuring better security but requiring significantly more processing power compared to RSA key exchange. When decryption is enabled, firewalls must handle these computationally expensive operations for every encrypted session, impacting performance and sizing requirements.
* Why not "Large average transaction sizes consume more processing power to decrypt" (Option B)?While large transaction sizes can consume additional resources, SSL/TLS decryption is more dependent on the number of sessions and the complexity of the encryption algorithms used, rather than the size of the transactions. Hence, this is not a primary best practice consideration.
* Why not "Rivest-Shamir-Adleman (RSA) certificate authentication method consumes more resources than Elliptic Curve Digital Signature Algorithm (ECDSA), but ECDSA is more secure" (Option D)?This statement discusses certificate authentication methods, not SSL/TLS decryption performance. While ECDSA is more efficient and secure than RSA, it is not directlyrelevant to sizing considerations for firewall deployments with decryption enabled.
NEW QUESTION # 61
Regarding APIs, a customer RFP states: "The vendor's firewall solution must provide an API with an enforcement mechanism to deactivate API keys after two hours." How should the response address this clause?
Answer: A
Explanation:
Palo Alto Networks' PAN-OS supports API keys for authentication when interacting with the firewall's RESTful and XML-based APIs. By default, API keys do not have an expiration time set, but the expiration time for API keys can be configured by an administrator to meet specific requirements, such as a time-based deactivation after two hours. This is particularly useful for compliance and security purposes, where API keys should not remain active indefinitely.
Here's an evaluation of the options:
* Option A:This is incorrect because the default setting for API keys does not include an expiration time.
By default, API keys are valid indefinitely unless explicitly configured otherwise.
* Option B:This is incorrect because PAN-OS fully supports API keys. The API keys are integral to managing access to the firewall's APIs and provide a secure method for authentication.
* Option C:This is incorrect because PAN-OS does support API key expiration when explicitly configured. While the default is "no expiration," the feature to configure an expiration time (e.g., 2 hours) is available.
* Option D (Correct):The correct response to the RFP clause is that the default API key settings need to be modified to set the expiration time to 120 minutes (2 hours). This aligns with the customer requirement to enforce API key deactivation based on time. Administrators can configure this using the PAN-OS management interface or the CLI.
How to Configure API Key Expiration (Steps):
* Access theWeb InterfaceorCLIon the firewall.
* Navigate toDevice > Management > API Key Lifetime Settings(on the GUI).
* Set the desired expiration time (e.g., 120 minutes).
* Alternatively, use the CLI to configure the API key expiration:
set deviceconfig system api-key-expiry <time-in-minutes>
commit
* Verify the configuration using the show command or by testing API calls to ensure the key expires after the set duration.
References:
* Palo Alto Networks API Documentation: https://docs.paloaltonetworks.com/apis
* Configuration Guide: Managing API Key Expiration
NEW QUESTION # 62
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