200-301 · Question #936
Which two cable types must be used to connect an access point to the WLC when 2.5-Gbps and 5-Gbps upload speeds are required? (Choose two.)
The correct answer is A. 10GBASE-T C. Cat 5e. To support 2.5-Gbps and 5-Gbps upload speeds for connecting an access point to a WLC, both Cat 5e cabling and cabling meeting 10GBASE-T specifications can be used.
Question
Options
- A10GBASE-T
- B1000BASE-LX/LH
- CCat 5e
- DCat 5
- ECat 3
How the community answered
(31 responses)- A81% (25)
- B3% (1)
- D13% (4)
- E3% (1)
Why each option
To support 2.5-Gbps and 5-Gbps upload speeds for connecting an access point to a WLC, both Cat 5e cabling and cabling meeting 10GBASE-T specifications can be used.
While 10GBASE-T refers to an Ethernet standard for 10 Gbps, the higher-category cabling it requires (e.g., Cat6a, Cat7) inherently supports the intermediate 2.5GBASE-T and 5GBASE-T (NBASE-T) speeds due to backward compatibility and superior performance characteristics. This cabling provides ample bandwidth for the specified requirements. C: Cat 5e cable is officially supported by the 2.5GBASE-T (NBASE-T) standard for distances up to 100 meters and can often support 5GBASE-T over shorter distances, making it a suitable and cost-effective option for these multi-gigabit speeds.
1000BASE-LX/LH is a Gigabit Ethernet standard for fiber optic cables, not copper twisted-pair, and is typically used for longer distances rather than direct AP-to-WLC connections needing multi-gigabit copper.
Cat 5 cable is generally limited to 100 Mbps (100BASE-TX) for reliable operation and is insufficient for 2.5-Gbps or 5-Gbps speeds.
Cat 3 cable is only suitable for 10 Mbps (10BASE-T) and does not meet the requirements for 2.5-Gbps or 5-Gbps speeds.
Concept tested: Ethernet cabling for multi-gigabit speeds (NBASE-T)
Source: https://www.cisco.com/c/en/us/products/collateral/wireless/catalyst-9130ax-series-access-points/white-paper-c11-744023.html
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