[2025年03月07日] 信頼され続けるPCNSE試験のコツがあるPDF試験材料 [Q405-Q429]

[2025年03月07日] 信頼され続けるPCNSE試験のコツがあるPDF試験材料

2025年最新のPCNSEテスト解説（更新されたのは840問があります)

パロアルトネットワークスのPCNSE認定は、ネットワークセキュリティ技術と最良のプラクティスにおける専門知識を証明したいセキュリティエンジニアにとって価値のある資格です。認定試験は幅広いトピックをカバーしており、試験に挑戦する前に、候補者はパロアルトネットワークスの製品や技術に対して実践的な経験を持っていることが推奨されています。PCNSE認定を取得することで、セキュリティエンジニアはキャリアの向上や、パロアルトネットワークスのソリューションを使用して組織をサイバー脅威から保護する能力を証明することができます。

質問 # 405
True or False: One of the advantages of Single Pass Parallel Processing (SP3) is that traffic can be scanned as it crosses the firewall with minimum amount of buffering, which in turn can allow advanced features like virus/malware scanning without effecting firewall performance

A. False
B. True

正解：B

質問 # 406
A network administrator is trying to prevent domain username and password submissions to phishing sites on some allowed URL categories Which set of steps does the administrator need to take in the URL Filtering profile to prevent credential phishing on the firewall?

A. Choose the URL categories in the User Credential Submission column and set action to block Select the User credential Detection tab and select Use Domain Credential Filter Commit
B. Choose the URL categories in the User Credential Submission column and set action to block Select the User credential Detection tab and select use IP User Mapping Commit
C. Choose the URL categories on Site Access column and set action to block Click the User credential Detection tab and select IP User Mapping Commit
D. Choose the URL categories in the User Credential Submission column and set action to block Select the URL filtering settings and enable Domain Credential Filter Commit

正解：A

解説：
Explanation
https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-admin/threat-prevention/prevent-credential-phishing/set-up
https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/url-filtering/prevent-credential-phishing/set-up-cre

質問 # 407
Which CLI command enables an administrator to check the CPU utilization of the dataplane?

A. debug running resources
B. show running resource-monitor
C. show system resources
D. debug data-plane dp-cpu

正解：B

解説：
https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClXwCAK

質問 # 408
An administrator receives the following error message:
"IKE phase-2 negotiation failed when processing Proxy ID. Received local id 192.168 33 33/24 type IPv4 address protocol 0 port 0, received remote id 172.16 33.33/24 type IPv4 address protocol 0 port 0." How should the administrator identify the root cause of this error message?

A. Verify that the IP addresses can be pinged and that routing issues are not causing the connection failure
B. In the IPSec Crypto profile configuration, verify that PFS is either enabled on both VPN peers or disabled on both VPN peers.
C. In the IKE Gateway configuration, verify that the IP address for each VPN peer is accurate
D. Check whether the VPN peer on one end is set up correctly using policy-based VPN

正解：B

解説：
According to the Palo Alto Networks documentation1, the error message "IKE phase-2 negotiation failed when processing Proxy ID" indicates that there is a mismatch between the Proxy ID settings on the two VPN peers. Proxy ID is used to identify the traffic that needs to be encrypted and tunneled. It consists of the local and remote IP addresses, protocols, and ports. If the Proxy ID settings do not match on both VPN peers, the phase-2 negotiation will fail. Therefore, the administrator should check whether the VPN peer on one end is set up correctly using policy-based VPN, which allows specifying the Proxy ID settings manually2. Therefore, the correct answer is C.
The other options are not relevant or helpful for identifying the root cause of this error message:
In the IKE Gateway configuration, verify that the IP address for each VPN peer is accurate: This option would help to identify the root cause of a phase-1 negotiation failure, not a phase-2 negotiation failure. The IP address for each VPN peer is used to establish the IKE gateway, which is part of the phase-1 negotiation. If the IP address is inaccurate, the phase-1 negotiation will fail and the error message will be different.
Verify that the IP addresses can be pinged and that routing issues are not causing the connection failure: This option would also help to identify the root cause of a phase-1 negotiation failure, not a phase-2 negotiation failure. The ability to ping and route between the IP addresses of the VPN peers is a prerequisite for establishing the IKE gateway, which is part of the phase-1 negotiation. If there are routing issues or connectivity problems, the phase-1 negotiation will fail and the error message will be different.
In the IPSec Crypto profile configuration, verify that PFS is either enabled on both VPN peers or disabled on both VPN peers: This option would help to identify the root cause of a different phase-2 negotiation failure, not the one related to Proxy ID mismatch. PFS stands for Perfect Forward Secrecy, which is an option to generate a new encryption key for each IPSec session. If PFS is enabled on one VPN peer but disabled on another, the phase-2 negotiation will fail and the error message will be "IKEv2 IPSec SA negotiation failed. Invalid syntax."3.

質問 # 409
Which three firewall states are valid? (Choose three.)

A. Suspended
B. Active
C. Functional
D. Passive
E. Pending

正解：A、B、D

解説：
Explanation/Reference:
Reference: https://www.paloaltonetworks.com/documentation/71/pan-os/pan-os/high-availability/ha- firewall-states

質問 # 410
Refer to the image.

An administrator is tasked with correcting an NTP service configuration for firewalls that cannot use the Global template NTP servers. The administrator needs to change the IP address to a preferable server for this template stack but cannot impact other template stacks.
How can the issue be corrected?

A. Enable "objects defined in ancestors will take higher precedence" under Panorama settings.
B. Override a template value using a template stack variable.
C. Override the value on the NYCFW template.
D. Override the value on the Global template.

正解：B

解説：
Explanation
Both templates and template stacks support variables. Variables allow you to create placeholder objects with their value specified in the template or template stack based on your configuration needs. Create a template or template stack variable to replace IP addresses, Group IDs, and interfaces in your configurations.https://docs.paloaltonetworks.com/panorama/10-0/panorama-admin/manage-firewalls/manage-tem

質問 # 411
An engineer must configure a new SSL decryption deployment.
Which profile or certificate is required before any traffic that matches an SSL decryption rule is decrypted?

A. There must be a certificate with both the Forward Trust option and Forward Untrust option selected.
B. There must be a certificate with only the Forward Trust option selected.
C. A Decryption profile must be attached to the Decryption policy that the traffic matches.
D. A Decryption profile must be attached to the Security policy that the traffic matches.

正解：B

解説：
Explanation
A certificate with only the Forward Trust option selected is required for SSL Forward Proxy decryption, which is the most common type of SSL decryption deployment1. A certificate with both the Forward Trust and Forward Untrust options selected is required for SSL Inbound Inspection decryption, which is less common2
. A Decryption profile is not required before any traffic that matches an SSL decryption rule is decrypted, but it is recommended to apply one to control how the firewall handles traffic that cannot be decrypted3.
References: 1:
https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admin/threat-prevention/decryption/decryption-concepts/s
2:
https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admin/threat-prevention/decryption/decryption-concepts/s
3
:https://docs.paloaltonetworks.com/best-practices/10-1/decryption-best-practices/decryption-best-practices/deplo

質問 # 412
Which User-ID method maps IP addresses to usernames for users connecting through an 802.1x-enabled wireless network device that has no native integration with PAN-OS software?

A. XML API
B. Port Mapping
C. Client Probing
D. Server Monitoring

正解：A

解説：
Explanation
https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admin/user-id/user-id-concepts/user-mapping/xml-api.htm

質問 # 413
Which URL Filtering Security Profile action logs the URL Filtering category to the URL Filtering log?

A. Alert
B. Default
C. Allow
D. Log

正解：A

解説：
Explanation
https://www.paloaltonetworks.com/documentation/70/pan-os/pan-os/url-filtering/url-filtering-profile-actions

質問 # 414
Why would a traffic log list an application as "not-applicable"?

A. The TCP connection terminated without identifying any application data
B. There was not enough application data after the TCP connection was established
C. The application is not a known Palo Alto Networks App-ID.
D. The firewall denied the traffic before the application match could be performed.

正解：D

解説：
Explanation
According to the documentation, not-applicable means that the Palo Alto device has received data that will be discarded because the port or service that the traffic is coming in on is not allowed, or there is no rule or policy allowing that port or service. This occurs because the traffic was dropped or denied before the application match could be performed. References: Not-applicable in Traffic Logs - Palo Alto Networks 2 Not-Applicable, Incomplete, Insufficient Data in the Application Field - Palo Alto Networks
https://knowledgebase.paloaltonetworks.com/KCSArticleDetail?id=kA10g000000ClspCAC

質問 # 415
Which CLI command is used to determine how much disk space is allocated to logs?

A. debug log-receiver show
B. show system logdb-quota
C. show system info
D. show logging-status

正解：B

解説：
show system logdb-quota
Quotas:
system: 4.00%, 0.609 GB Expiration-period: 0 days
config: 4.00%, 0.609 GB Expiration-period: 0 days
alarm: 3.00%, 0.457 GB Expiration-period: 0 days

質問 # 416
Which tool provides an administrator the ability to see trends in traffic over periods of time, such as threats detected in the last 30 days?

A. Session Browser
B. Packet Capture
C. Application Command Center
D. TCP Dump

正解：C

解説：
Reference:
https://live.paloaltonetworks.com/t5/Management-Articles/Tips-amp-Tricks-How-to-Use-the-Application-Comm ACC/ta-p/67342 The Application Command Center (ACC) page visually depicts trends and a historic view of traffic on your network. It displays the overall risk level for all network traffic, the risk levels and number of threats detected for the most active and highest-risk applications on your network, and the number of threats detected from the busiest application categories and from all applications at each risk level. The ACC can be viewed for the past hour, day, week, month, or any custom-defined time frame.

質問 # 417
Which configuration is backed up using the Scheduled Config Export feature in Panorama?

A. Panorama candidate configuration
B. Panorama running configuration and running configuration of all managed devices
C. Panorama running configuration
D. Panorama candidate configuration and candidate configuration of all managed devices

正解：B

解説：
To schedule an export of all the running configurations on Panorama and firewalls, Add an export task and configure the settings as described in the following table.
https://docs.paloaltonetworks.com/panorama/10-2/panorama-admin/administer- panorama/manage-panorama-and-firewall-configuration-backups

質問 # 418
In a security-first network what is the recommended threshold value for content updates to be dynamically updated?

A. 36 hours
B. 24 hours
C. 6 to 12 hours
D. 1 to 4 hours

正解：C

解説：
Schedule content updates so that they download-and-install automatically. Then, set a Threshold that determines the amount of time the firewall waits before installing the latest content. In a security-first network, schedule a six to twelve hour threshold.
https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-upgrade/software-and-content- updates/best-practices-for-app-and-threat-content-updates/best-practices-security-first

質問 # 419
An existing NGFW customer requires direct interne! access offload locally at each site and iPSec connectivity to all branches over public internet. One requirement is mat no new SD-WAN hardware be introduced to the environment.
What is the best solution for the customer?

A. Configure a remote network on PAN-OS
B. Upgrade to a PAN-OS SD-WAN subscription
C. Deploy Prisma SD-WAN with Prisma Access
D. Configure policy-based forwarding

正解：B

解説：
According to the Palo Alto Networks documentation, "The PAN-OS software now includes a native SD-WAN subscription to provide intelligent and dynamic path selection on top of the industry-leading security that PAN-OS software already delivers. Key features of the SD-WAN implementation include centralized configuration management, automatic VPN topology creation, traffic distribution, monitoring, and troubleshooting."

質問 # 420
An administrator needs to optimize traffic to prefer business-critical applications over non-critical applications.
QoS natively integrates with which feature to provide service quality?

A. Certificate revocation
B. App-ID
C. Content-ID
D. Port Inspection

正解：B

解説：
Explanation/Reference:
Reference: https://www.paloaltonetworks.com/documentation/71/pan-os/pan-os/quality-of-service/qos-for- applications-and-users

質問 # 421
A network security engineer has a requirement to allow an external server to access an internal web server.
The internal web server must also initiate connections with the external server.
What can be done to simplify the NAT policy?

A. Create a new Destination NAT Policy rule that matches the existing traffic and enable the Bi- directional option
B. Configure ECMP to handle matching NAT traffic
C. Create a new Source NAT Policy rule that matches the existing traffic and enable the Bi-directional option
D. Configure a NAT Policy rule with Dynamic IP and Port

正解：C

解説：
https://www.paloaltonetworks.com/documentation/70/pan-os/pan-os/networking/nat-configuration-examples

質問 # 422
The automated Correlation Engine uses correlation objects to analyze the logs for patterns. When a match occurs:

A. The Correlation Engine generates a correlation event
B. The Correlation Engine displays a warning message to the end user
C. The Correlation Engine blocks the connection
D. The Correlation Engine dumps the alarm log

正解：A

質問 # 423
Which CLI command can be used to export the tcpdump capture?

A. scp extract mgmt-pcap from mgmt.pcap to <username@host:path>
B. scp export tcpdump from mgmt.pcap to <username@host:path>
C. scp export mgmt-pcap from mgmt.pcap to <username@host:path>
D. download mgmt.-pcap

正解：C

解説：
Reference:
https://live.paloaltonetworks.com/t5/Management-Articles/How-To-Packet-Capture-tcpdump-On-Management-Interface/ta- p/55415

質問 # 424
What is the best description of the HA4 Keep-Alive Threshold (ms)?

A. the maximum interval between hello packets that are sent to verify that the HA functionality on the other firewall is operational.
B. The timeframe that the local firewall wait before going to Active state when another cluster member is preventing the cluster from fully synchronizing.
C. the timeframe within which the firewall must receive keepalives from a cluster member to know that the cluster member is functional.
D. The time that a passive or active-secondary firewall will wait before taking over as the active or active-primary firewall

正解：C

解説：
https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/high-availability/configure-ha-clustering

質問 # 425
Refer to the exhibit.

Which will be the egress interface if the traffic's ingress interface is ethernet1/7 sourcing from
192.168.111.3 and to the destination 10.46.41.113?

A. ethernet1/6
B. ethernet1/5
C. ethernet1/3
D. ethernet1/7

正解：B

質問 # 426
If the firewall is configured for credential phishing prevention using the "Domain Credential Filter" method, which login will be detected as credential theft?

A. First four letters of the username matching any valid corporate username.
B. Using the same user's corporate username and password.
C. Marching any valid corporate username.
D. Mapping to the IP address of the logged-in user.

正解：D

解説：
Explanation
Explanation
Reference:
https://www.paloaltonetworks.com/documentation/80/pan-os/newfeaturesguide/content-inspection-features/crede phishing-prevention

質問 # 427
An administrator just submitted a newly found piece of spyware for WildFire analysis.
The spyware monitors behavior without the user's knowledge.
What is the expected verdict from WildFire?

A. Spyware
B. Phishing
C. Grayware
D. Malware

正解：C

質問 # 428
Refer to the exhibit.

An administrator is using DNAT to map two servers to a single public IP address. Traffic will be steered to
the specific server based on the application, where Host A (10.1.1.100) receives HTTP traffic and HOST B
(10.1.1.101) receives SSH traffic.
Which two security policy rules will accomplish this configuration? (Choose two.)