Examkin

Soru

Zorluk: OrtaCommon Ports and Protocols

A network technician is implementing an automated configuration archiving system for network switches. The system relies on Trivial File Transfer Protocol (TFTP) to push configuration files to a centralized storage server without requiring user authentication or maintaining complex connection sessions. Which of the following port and transport protocol combinations must be permitted on the network firewall to allow this traffic?

  1. UDP port 69Cevap
  2. B
    TCP port 21
  3. C
    TCP port 22
  4. D
    UDP port 67

Cevap

UDP port 69 is required for Trivial File Transfer Protocol (TFTP) traffic.
Trivial File Transfer Protocol (TFTP) is designed as a minimal, lightweight file transfer protocol that operates over User Datagram Protocol (UDP) on well-known port 69. Because it lacks authentication and session overhead, it is commonly used for bootstrapping network devices and backing up router/switch configuration files.

Adım Adım Çözüm

1
Identify the protocol described in the scenario
The requirement specifies Trivial File Transfer Protocol (TFTP) for lightweight, unauthenticated file pushes.
Determining the exact service protocol dictates the transport layer protocol and default port assignment.
2
Determine the transport layer protocol and default port for TFTP
TFTP uses UDP on port 69.
TFTP relies on UDP for low-overhead, connectionless transfer rather than TCP.
3
Match the requirement with the correct firewall port configuration
Permitting UDP port 69 on the firewall allows TFTP configuration traffic to pass.
Firewall rules must match both the specific transport protocol (UDP) and destination port (69).

Anahtar Kavram

Common Network Ports and Protocols (TFTP UDP 69)
Bu soruyu puanla

Konular

Common Ports and Protocols

Bu konudan daha fazla soru