# Screened-subnet firewall

> type of network firewall

**Wikidata**: [Q7439049](https://www.wikidata.org/wiki/Q7439049)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Screened_subnet)  
**Source**: https://4ort.xyz/entity/screened-subnet-firewall

## Summary
A **Screened-subnet firewall** is a **type of network firewall**. It is classified as a **firewall**, meaning it is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

## Key Facts
- **Screened-subnet firewall** is a **type of network firewall**.
- It is an **instance of: firewall**.
- A **firewall** is a **network security system that monitors and controls incoming and outgoing network traffic** based on **predetermined security rules**.
- The associated Wikipedia title for this topic is **“Screened subnet”**.
- The available Wikipedia language listed for this topic is **English (en)**.
- The Wikidata description for Screened-subnet firewall is **“type of network firewall.”**
- The related class **firewall** has a recorded **sitelink_count of 80** (as provided in the source material).
- Screened-subnet firewall has a recorded **sitelink_count of 1** (as provided in the source material).

## FAQs
### Q: What is a Screened-subnet firewall?
A: A Screened-subnet firewall is a type of network firewall. As a firewall, it is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

### Q: Is a Screened-subnet firewall the same thing as a firewall?
A: It is a kind of firewall. In the provided classification, Screened-subnet firewall is an instance of the broader class “firewall.”

### Q: What does a firewall do in general?
A: A firewall monitors and controls incoming and outgoing network traffic. It does this based on predetermined security rules.

### Q: Where is this topic documented?
A: The provided source material links the topic to the Wikipedia title **“Screened subnet”** and indicates English as the available Wikipedia language.

## Why It Matters
Screened-subnet firewall matters because it belongs to the broader category of **firewalls**, which are foundational tools in network security. A firewall’s role is to **monitor and control network traffic**—both inbound and outbound—according to **predetermined security rules**. That function is central to how organizations and individuals manage exposure to unwanted or unauthorized network communication.

By being explicitly identified as a **type of network firewall**, Screened-subnet firewall is relevant to anyone studying or implementing network security controls and architectures. Even at a high level, the classification signals that it is part of the family of systems used to enforce traffic-handling rules at network boundaries or control points. In practice, the importance of any firewall type is tied to its ability to support rule-based decisions about what traffic is allowed or blocked, helping reduce risk and maintain controlled connectivity.

## Notable For
- Being explicitly described as a **type of network firewall**.
- Being classified as an **instance of the firewall class**.
- Being tied (in the provided data) to the Wikipedia topic titled **“Screened subnet.”**
- Being associated with the general firewall function of **monitoring and controlling incoming and outgoing network traffic** based on **predetermined security rules**.

## Body
### Classification and Identity
- **Entity:** Screened-subnet firewall  
- **Description (Wikidata):** type of network firewall  
- **Instance of:** firewall

### Relationship to “Firewall” (Related Class)
- Screened-subnet firewall is categorized under **firewall**.
- A **firewall** is defined (in the provided material) as:
  - A **network security system**
  - That **monitors and controls incoming and outgoing network traffic**
  - Based on **predetermined security rules**

### Documentation References in the Provided Data
- **Wikipedia title:** Screened subnet  
- **Wikipedia languages:** en  
- **Sitelink counts (as provided):**
  - Screened-subnet firewall: **1**
  - Firewall (related class): **80**