Examkin

Soru

Zorluk: OrtaUtilizing Hardware Testers and Packet Analyzers

A network technician is troubleshooting an enterprise building interconnect where a newly provisioned multi-mode fiber link experiences high frame loss, while workstation clients on the attached Ethernet segment fail to receive automatic IP configurations. Which of the following diagnostic tools or analyzer filters should the technician utilize to isolate these physical and application layer issues? (Select TWO.)

  1. An Optical Time-Domain Reflectometer (OTDR) to identify attenuation, macrobends, and distance to optical breaks along the fiber cable run.Cevap
  2. A packet analyzer filter configured for UDP ports 67 and 68 to inspect DHCP request and acknowledgment frames.Cevap
  3. C
    A copper Time-Domain Reflectometer (TDR) to evaluate optical insertion loss and light signal polarization across the strand.
  4. D
    A packet analyzer filter configured for TCP port 67 to capture connection-oriented DHCP handshake traffic.

Cevap

The technician should use an Optical Time-Domain Reflectometer (OTDR) to diagnose the fiber link and apply a packet analyzer filter for UDP ports 67 and 68 to capture DHCP traffic.
An OTDR is specifically designed to locate physical anomalies and measure signal attenuation in optical fiber links. Furthermore, DHCP relies on UDP (ports 67 and 68), so filtering for these UDP ports allows the technician to capture and analyze automatic IP address assignment traffic.

Adım Adım Çözüm

1
Analyze the physical layer diagnostic requirement for the multi-mode fiber connection.
Identify that testing optical fiber cabling for breaks, loss, or bends requires an Optical Time-Domain Reflectometer (OTDR), as copper TDR tools cannot test optical media.
OTDRs measure light backscatter to pinpoint distance-to-fault on fiber strands.
2
Analyze the protocol analyzer requirement for client IP address configuration failures.
Identify DHCP as the underlying protocol for automatic IP configuration and recall that DHCP uses UDP ports 67 and 68.
Setting the packet capture filter to UDP ports 67 and 68 isolates DHCP Discover/Offer/Request/ACK traffic.

Anahtar Kavram

Selecting appropriate hardware testers (OTDR vs. TDR) for fiber cabling and filtering protocol traffic (DHCP over UDP 67/68) using packet analyzers.
Bu soruyu puanla

Konular

Utilizing Hardware Testers and Packet Analyzers

Bu konudan daha fazla soru