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N10-009 · Question #107

N10-009 Question #107: Real Exam Question with Answer & Explanation

The correct answer is D: Subinterfaces. Subinterfaces: Subinterfaces are virtual interfaces created on a physical router interface, each associated with a specific VLAN or subnet. By configuring subinterfaces, the router can effectively handle traffic from multiple subnets, allowing traffic separation while still enabl

Submitted by chen.hong· Mar 6, 2026Network Implementation

Question

A network administration team for a medium-sized business has decided to segment the network, logically separating the finance and marketing teams in order to improve performance for both teams. The finance and marketing teams still need to access resources across the subnets, and the router has a single interface. Which of the following should the administrator configure in order to allow the traffic?

Options

  • APort address translation
  • BClassless masking
  • CIPv6 tunneling
  • DSubinterfaces

Explanation

Subinterfaces: Subinterfaces are virtual interfaces created on a physical router interface, each associated with a specific VLAN or subnet. By configuring subinterfaces, the router can effectively handle traffic from multiple subnets, allowing traffic separation while still enabling communication between the finance and marketing teams. Each subinterface is associated with a different VLAN or subnet and can have its own IP address, allowing traffic to be routed between subnets while keeping them logically separated.

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