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Zorluk: KolayRemote Access and Out-of-Band Management

A network administrator needs to select remote access mechanisms for data center infrastructure that provide secure, encrypted command-line management or function out-of-band during a primary production network outage. Which of the following options satisfy these requirements? (Select TWO)

  1. Connecting device serial console ports to a dedicated terminal server accessible via an external cellular modemCevap
  2. Establishing a Secure Shell (SSH) connection over a dedicated out-of-band management interfaceCevap
  3. C
    Establishing an unencrypted Telnet connection over port 23 across the primary production VLAN
  4. D
    Configuring unencrypted SNMPv2c read-write community strings over the primary production WAN connection

Cevap

Connecting device serial console ports to a dedicated terminal server with cellular backup, and establishing Secure Shell (SSH) connections over an isolated out-of-band management interface.
Out-of-band management relies on dedicated physical or secondary paths (such as serial console connections to a terminal server backed by cellular connectivity) to reach devices independently of production IP networks. For remote management, Secure Shell (SSH) ensures administrative commands and credentials are securely encrypted.

Adım Adım Çözüm

1
Identify methods that provide true out-of-band (OOB) connectivity during primary network failures.
Connecting physical console/serial ports to a terminal server paired with an independent transport channel (such as a cellular modem) allows network administrators to manage hardware even when primary and secondary WAN links are down.
Out-of-band management requires an alternate physical or logical pathway isolated from standard production data paths.
2
Identify secure, encrypted remote access protocols.
Secure Shell (SSH) encrypts all traffic (including passwords and commands) to prevent eavesdropping and unauthorized access, especially when paired with a dedicated out-of-band management network.
In-band unencrypted protocols such as Telnet or legacy SNMP transmit credentials in cleartext and present unacceptable security risks.

Anahtar Kavram

Out-of-Band Management & Secure Remote Access Protocols
Tahmini Süre:1m 0s
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Konular

Remote Access and Out-of-Band Management

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