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N10-009 · Question #61

A network administrator for a small office is adding a passive IDS to its network switch for the purpose of inspecting network traffic. Which of the following should the administrator use?

The correct answer is B. Port mirroring. Port mirroring, also known as SPAN (Switched Port Analyzer), is used to send a copy of network packets seen on one switch port (or an entire VLAN) to another port where the IDS is connected. This allows the IDS to passively inspect network traffic without interfering with the…

Submitted by daniela_cl· Mar 6, 2026Network Implementation

Question

A network administrator for a small office is adding a passive IDS to its network switch for the purpose of inspecting network traffic. Which of the following should the administrator use?

Options

  • ASNMP trap
  • BPort mirroring
  • CSyslog collection
  • DAPI integration

How the community answered

(22 responses)
  • A
    5% (1)
  • B
    73% (16)
  • C
    18% (4)
  • D
    5% (1)

Explanation

Port mirroring, also known as SPAN (Switched Port Analyzer), is used to send a copy of network packets seen on one switch port (or an entire VLAN) to another port where the IDS is connected. This allows the IDS to passively inspect network traffic without interfering with the actual traffic flow. Port mirroring is an essential feature for implementing IDS in a network for traffic analysis and security monitoring.

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