CompTIA
220-801 · Question #47
220-801 Question #47: Real Exam Question with Answer & Explanation
The correct answer is A: Express card 54. ExpressCard 54 is the laptop expansion slot technology most likely used to add a gigabit Ethernet NIC to a laptop, as it provides sufficient bandwidth and physical compatibility.
Question
A technician is going to install a gigabit Ethernet adapter into a laptop for a customer. Which of the following technologies is MOST likely being used in this installation?
Options
- AExpress card 54
- BUSB 2.0
- CPCIe
- DPort replicator
Explanation
ExpressCard 54 is the laptop expansion slot technology most likely used to add a gigabit Ethernet NIC to a laptop, as it provides sufficient bandwidth and physical compatibility.
Common mistakes.
- B. USB 2.0 has a theoretical max of 480 Mbps, which is insufficient to deliver true gigabit (1000 Mbps) throughput for a dedicated NIC.
- C. PCIe slots are found on desktop motherboards, not laptops, making this an incorrect choice for a laptop installation.
- D. A port replicator extends existing ports but does not add new internal hardware adapters like a dedicated gigabit NIC.
Concept tested. Laptop expansion technologies for adding NICs
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