200-301 Question #1158: Real Exam Question with Answer & Explanation

Question

How do UTP and STP cables compare?

Options

• AUTP cables provide faster and more reliable data transfer rates and STP cables are slower and
• BSTP cables are shielded and protect against electromagnetic interference and UTP lacks the
• CSTP cables are cheaper to procure and easier to install and UTP cables are more expensive and
• DUTP cables are less prone to crosstalk and interference and STP cables are more prone to

Explanation

STP cables include shielding to mitigate electromagnetic interference (EMI), a feature lacking in UTP cables.

Common mistakes.

• A. STP cables, due to better interference protection, can often provide more reliable data transfer in noisy environments, whereas UTP is generally more susceptible to interference.
• C. STP cables are typically more expensive and more difficult to install than UTP cables due to the added shielding and grounding requirements.
• D. UTP cables are more prone to external crosstalk and interference because they lack the protective metallic shield found in STP cables.

Concept tested. UTP vs. STP cable characteristics

Reference. https://www.cisco.com/c/en/us/products/collateral/interfaces-modules/gigabit-ethernet-modules/solution_overview_c22-506922.html

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