100-150: Cisco Certified Support Technician (CCST) NetworkingDemo

By Cisco · Question Mode

QuestionQ75

IP Connectivity

A help desk technician receives a report that a user is having network-connectivity problems. The help desk supervisor instructs the technician to use a bottom-up troubleshooting approach to identify the cause of the issue.

Which two possible issues would the technician investigate first with the bottom-up method?

Choose two
  • A Incorrect network password
  • B Wrong IP address configuration
  • C Network interface card failure
  • D Incorrect or damaged cables
  • E Wrong DNS server address
Explanation

A bottom-up troubleshooting approach begins with the lowest OSI layers, checking physical connectivity and network hardware before addressing higher-layer configuration or service settings. Damaged or incorrect cabling and a failed network interface card are therefore checked before IP addressing, DNS, or authentication settings.

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