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Zorluk: KolayRemote Access Technologies and Tools

A help desk technician needs to establish a basic, unencrypted text-based terminal session to configure a legacy network device on an isolated lab network. Which protocol and default port should the technician select?

  1. Telnet on TCP port 23Cevap
  2. B
    Secure Shell (SSH) on TCP port 22
  3. C
    Remote Desktop Protocol (RDP) on TCP port 3389
  4. D
    Virtual Network Computing (VNC) on TCP port 5900

Cevap

Telnet on TCP port 23 provides an unencrypted text-based terminal session.
Telnet is designed for text-based remote administration and transmits data in plain text without encryption. It operates over TCP port 23 by default, matching the requirement for an unencrypted terminal session to a legacy device.

Adım Adım Çözüm

1
Identify the requested interface type and security level
The scenario requires an unencrypted, text-based command-line terminal session.
Legacy devices often rely on plain-text command-line protocols for basic access.
2
Match the requirement to the appropriate protocol and default port
Telnet delivers cleartext command-line management over TCP port 23.
Telnet transmits all traffic without encryption over TCP port 23.

Anahtar Kavram

Telnet Protocol and Port Identification
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Konular

Remote Access Technologies and Tools

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