Secure Network Administrationintermediate
When configuring an Internet-facing data interface on a network firewall as a Layer 3 routed interface, which of the following is configured directly on that interface?
Answer
Static IPv4 address in CIDR notation
Explanation
### Why this is right
- **The comment `Internet` on ethernet1/1** is correct because the lab assigns that label to the first data interface.
- **Layer 3 interface type** is correct because the interface is configured to participate in routed IP networking.
- **Static IPv4 addressing** is correct because the lab asks students to enter a static address in CIDR notation.
### The concept
Interface labels help identify purpose, while the interface type and address determine how it participates in networking. These settings are distinct from management credentials, which are used to sign in to the firewall.
### The other options
- **The management adapter's web-browser password**: a password is not a setting for the Internet-facing data interface.
### Terms
- **IPv4**: Internet Protocol version 4, an addressing format for network interfaces.
- **CIDR**: Classless Inter-Domain Routing, notation that combines an IP address with a prefix length.
### Remember
The lab labels ethernet1/1 `Internet` and configures it as a static Layer 3 interface.
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