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Zorluk: KolayRemote Access and Out-of-Band Management

A network technician needs to configure out-of-band (OOB) management access for a core router to ensure administrative connectivity remains available even during a total failure of the primary local network interfaces. Which connection method should be configured?

  1. Connecting a dedicated modem to the router's auxiliary or serial console portCevap
  2. B
    Establishing an SSH management session over the primary Ethernet LAN interface
  3. C
    Configuring an unencrypted Telnet connection through the main WAN interface
  4. D
    Enabling SNMP polling over the device's primary management VLAN interface

Cevap

Connecting a dedicated modem to the router's auxiliary or serial console port provides valid out-of-band management.
Out-of-band (OOB) management provides a dedicated, dedicated channel for device administration that operates independently of production network interfaces. Connecting a modem or terminal server to a device's dedicated serial console or auxiliary port ensures administrators retain command-line access even when primary network interfaces fail.

Adım Adım Çözüm

1
Identify the primary requirement for out-of-band (OOB) management access.
OOB management requires an independent, alternative communication path separate from primary data production paths.
In-band channels become unusable whenever primary network interfaces or links experience outages.
2
Evaluate the given connectivity methods against OOB requirements.
A serial console or auxiliary port connected to a modem provides a dedicated path that bypasses network interfaces entirely.
This guarantees command-line interface access for remote technicians during emergency troubleshooting.

Anahtar Kavram

Out-of-Band Management Channel Isolation
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Konular

Remote Access and Out-of-Band Management

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