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32 cards. Read the term and the definition here. The deck at the top of this page is optional.

Single-pass parallel processing
PAN-OS architecture that performs networking, security policy, threat inspection, and management in parallel on separate hardware resources, scanning each packet once instead of in multiple sequential passes.
App-ID
Identification technology that determines which application generated traffic by examining signatures, protocol decoding, and context, independent of the TCP or UDP port number in use.
User-ID
Identification technology that maps source IP addresses to users and groups by reading directory logs, Captive Portal, GlobalProtect, or server monitoring, enabling policy based on user identity.
Content-ID
Set of inspection technologies that scans permitted traffic for threats and data patterns, including antivirus, anti-spyware, vulnerability protection, file blocking, WildFire, and data filtering.
Panorama
Centralized management appliance or virtual machine that administers multiple firewalls using device groups for policy and templates for network settings, and also aggregates their logs.
WildFire
Cloud-delivered service that runs suspicious files and links in sandboxes, produces signatures for detected malware, and returns verdicts to subscribing firewalls for enforcement.
Candidate configuration
Working copy of the firewall configuration that holds uncommitted edits; changes exist only there until a commit makes them active in the running configuration.
Commit
Operation that validates the candidate configuration and pushes it into the running configuration on the firewall, activating all pending changes at once.
Dynamic content updates
Subscription-delivered updates such as Applications and Threats, Antivirus, WildFire, and URL database content that refresh signatures without requiring a PAN-OS upgrade or reboot.
Admin role profile
Object that defines what an administrator can view or change and is assigned to administrator accounts to grant granular permissions per area such as policies, objects, or network.
Policy Optimizer
Built-in tool that reports rule usage, shows the applications each rule actually matches, and helps convert port-based rules to App-ID while identifying unused or redundant rules.
Log forwarding profile
Object attached to security policy rules or system settings that sends selected log types to external destinations such as Panorama, syslog, SNMP, email, or HTTP.
Config audit
Feature that compares configuration versions to show what changed between commits, including which administrator made each modification and when it occurred.
Interzone-default rule
Implicit bottom rule that denies traffic between different zones when no explicit security rule matches, and by default writes a log entry at session end.
Intrazone-default rule
Implicit bottom rule that allows traffic between interfaces within the same zone when no explicit security rule matches, with logging disabled by default.
Reset-client rule action
Security policy action that sends a TCP reset to the client and drops the session, making the connection fail immediately instead of timing out silently.
Source NAT
Translation that changes the source IP address, and optionally the source port, of packets leaving a zone, commonly used to let internal hosts reach the internet.
Zone protection profile
Profile applied to a Layer 3 zone that defends against flood, reconnaissance, packet-based attacks, and malformed packets before sessions are created.
application-default service
Service setting in a security rule that permits only the ports an application uses by default, rather than a manually specified port or range.
Security profile group
Container that bundles antivirus, anti-spyware, vulnerability protection, URL filtering, file blocking, WildFire analysis, and data filtering profiles so one group attaches to a rule.
Application filter
Dynamic object that automatically includes applications matching criteria such as category, subcategory, technology, risk, or characteristics, updating as new applications are added.
Application override
Custom App-ID policy that forces traffic on specified ports to be identified as a user-defined application instead of the signature-based application, useful for custom or nonstandard apps.
Implied application
Underlying application that must be allowed for a dependent application to work, such as web-browsing and ssl being required before file-sharing applications can function.
insufficient-data
Application label assigned by App-ID when a session ends before enough packets are exchanged to classify it, often seen with very short or reset connections.
SSL decryption policy
Rule set that determines which traffic is decrypted for inspection, which is bypassed, and which decryption profile applies, enabling App-ID and threat scanning of encrypted sessions.
Application group
Static object containing a list of applications or application filters, used in security policy rules to apply one action to many applications at once.
URL Filtering profile
Object that assigns an action to each URL category and controls settings such as safe search, credential enforcement, and HTTP header logging for matching web traffic.
PAN-DB
Palo Alto Networks cloud-hosted URL database that categorizes websites and is queried by the firewall when a valid URL Filtering license is installed.
Custom URL category
User-defined list of URLs or IP addresses, or a category-match list, created on the firewall or Panorama to control sites not covered by predefined categories.
Override action
URL Filtering action that blocks the site but presents a response page where a user with the override password can continue, generating a log entry.
Safe search enforcement
URL Filtering setting that rewrites search engine results to enforce strict safe search and YouTube restricted mode for users covered by the profile.
External dynamic list
Importable list of IP addresses, URLs, or domains hosted on an external server that the firewall refreshes periodically and uses in policy rules.