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N10-005 · Question #743

N10-005 Question #743: Real Exam Question with Answer & Explanation

The correct answer is D: Verify the network cards can support 1Gbps. Before making any infrastructure changes, the technician must verify that the end devices can support the desired speed. If the NICs are only 100 Mbps cards, replacing cables and switches will not help. Importantly, CAT5e cable already supports Gigabit Ethernet (1000BASE-T) up to

Question

A technician is tasked with rewiring a CAT5e SOHO network with 10 existing computers. The users are currently running at 100 Mbps and would like to be upgraded to 1000 Mbps. Which of the following should the technician do FIRST?

Options

  • AUpgrade the existing computers
  • BPurchase a new 802.11ac access point and install.
  • CInstall CAT6 wiring for the SOHO network
  • DVerify the network cards can support 1Gbps

Explanation

Before making any infrastructure changes, the technician must verify that the end devices can support the desired speed. If the NICs are only 100 Mbps cards, replacing cables and switches will not help. Importantly, CAT5e cable already supports Gigabit Ethernet (1000BASE-T) up to 100 meters, so rewiring to CAT6 (option C) may not even be necessary. Upgrading computers (option A) is a larger, more expensive step that should only happen if needed. Installing a wireless access point (option B) is irrelevant for a wired network upgrade. Checking NIC capability first ensures the right next steps are taken without wasted effort or cost.

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