Quick Answer
The correct choice for a 10G uplink between wiring closets on different floors of the same building is fiber optic cable. This is because fiber optic cabling supports significantly higher bandwidth and longer distances than twisted-pair copper, easily handling 10 Gigabit Ethernet over the hundreds of meters often required between floors, while copper’s effective range for 10GBASE-T is limited to roughly 100 meters. On the CCNA 200-301 v2 exam, this concept tests your understanding of physical media selection for campus network design, often appearing in questions about uplink types or cabling standards like 10GBASE-SR or 10GBASE-LR. A common trap is assuming Cat6a or Cat7 copper can always replace fiber for inter-floor links, but remember that building riser distances typically exceed copper’s reach. For a quick memory tip, think “Fiber for Floors” — when you need to go up or down between wiring closets, fiber is the medium that carries the load.
This 200-301 practice question tests your understanding of network infrastructure and connectivity. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: fiber optic cables use light signals to transmit data, enabling high bandwidth and long-distance connections ideal for 10G Ethernet uplinks between building floors.. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which medium is the most common choice for a 10G uplink between wiring closets on different floors of the same building?
Rollover cable
Why wrong: A rollover cable is for console access, not uplinks.
Fiber optic cable
Correct. Fiber is the standard uplink choice here.
Coaxial cable
Why wrong: Coax is not the normal modern enterprise uplink medium in this scenario.
Console cable
Why wrong: A console cable is for management access, not switching uplinks.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Fiber optic cable
Fiber is commonly used for building uplinks because it supports higher bandwidth and longer distances than typical copper for this use case.
Key principle: Fiber optic cables use light signals to transmit data, enabling high bandwidth and long-distance connections ideal for 10G Ethernet uplinks between building floors.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Rollover cable
Why it's wrong here
A rollover cable is for console access, not uplinks.
When this WOULD be correct
If the exam question asked about connecting a terminal to a network device for configuration purposes, a rollover cable would be the correct choice. In such a scenario, the focus would be on management access rather than high-speed data transfer.
Fiber optic cable
Why this is correct
Correct. Fiber is the standard uplink choice here.
Related concept
Fiber optic cables use light signals to transmit data, enabling high bandwidth and long-distance connections ideal for 10G Ethernet uplinks between building floors.
Coaxial cable
Why it's wrong here
Coax is not the normal modern enterprise uplink medium in this scenario.
When this WOULD be correct
If the exam question asked for the most common medium for a 10G uplink in a legacy network setup or a specific scenario where coaxial infrastructure is already in place and being upgraded, coaxial cable could be considered a viable option.
Console cable
Why it's wrong here
A console cable is for management access, not switching uplinks.
When this WOULD be correct
If the exam question asked about connecting a network device directly to a computer for configuration purposes, a console cable would be the correct answer. This scenario would focus on device management rather than data uplinking.
Option-by-option analysis
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 200-301 exam frequently reuses these exact scenarios with slightly different constraints.
Why this is correct
Correct. Fiber is the standard uplink choice here.
Why this is wrong here
A rollover cable is a specialized Cisco console cable used for out-of-band management access to a device's console port, not for network data traffic. It cannot carry 10G Ethernet signals and is physically incompatible with Ethernet interfaces.
★ When this WOULD be the correct answer
If the exam question asked about connecting a terminal to a network device for configuration purposes, a rollover cable would be the correct choice. In such a scenario, the focus would be on management access rather than high-speed data transfer.
Why candidates choose this
Students may confuse rollover cables with other copper Ethernet cables (e.g., Cat6a) because both have RJ45 connectors, but rollover cables have a unique pinout (rolled) and are only used for console connections.
Why this is wrong here
Coaxial cable (e.g., RG-6) is primarily used for cable TV, broadband internet (DOCSIS), or legacy Ethernet (10BASE2/10BASE5), but it does not support 10G Ethernet speeds over the distances required between floors in a modern enterprise network. Fiber or twisted-pair copper (Cat6a/Cat7) are the standard 10G media.
★ When this WOULD be the correct answer
If the exam question asked for the most common medium for a 10G uplink in a legacy network setup or a specific scenario where coaxial infrastructure is already in place and being upgraded, coaxial cable could be considered a viable option.
Why candidates choose this
Coaxial cable is still used in some broadband and video applications, and its thick shielding might suggest it can handle high speeds, but it is not a standard for 10G Ethernet uplinks in structured cabling.
Why this is wrong here
A console cable (typically a rollover or USB-to-serial cable) is used for initial device configuration and management access, not for carrying network traffic. It cannot support 10G data rates and is not designed for switch-to-switch uplinks.
★ When this WOULD be the correct answer
If the exam question asked about connecting a network device directly to a computer for configuration purposes, a console cable would be the correct answer. This scenario would focus on device management rather than data uplinking.
Why candidates choose this
The term 'console cable' might be confused with 'crossover cable' or other Ethernet cables, but console cables are specifically for management and have different connectors and pinouts.
Analysis generated from the official 200-301blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Don't confuse the capabilities of multimode fiber with single-mode fiber for long-distance, high-speed connections.
Trap categories for this question
Scenario analysis trap
Coax is not the normal modern enterprise uplink medium in this scenario.
Detailed technical explanation
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
Key takeaway
Fiber optic cables use light signals to transmit data, enabling high bandwidth and long-distance connections ideal for 10G Ethernet uplinks between building floors.
Real-world example
A practitioner preparing for the 200-301 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Fiber optic cables use light signals to transmit data, enabling high bandwidth and long-distance connections ideal for 10G Ethernet uplinks between building floors. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Review fiber optic cables use light signals to transmit data, enabling high bandwidth and long-distance connections ideal for 10G Ethernet uplinks between building floors., then practise related 200-301 questions on the same topic to reinforce the concept.
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FAQ
Network Infrastructure and Connectivity — This question tests Network Infrastructure and Connectivity — Fiber optic cables use light signals to transmit data, enabling high bandwidth and long-distance connections ideal for 10G Ethernet uplinks between building floors..
The correct answer is: Fiber optic cable — Fiber is commonly used for building uplinks because it supports higher bandwidth and longer distances than typical copper for this use case.
Review fiber optic cables use light signals to transmit data, enabling high bandwidth and long-distance connections ideal for 10G Ethernet uplinks between building floors., then practise related 200-301 questions on the same topic to reinforce the concept.
Fiber optic cables use light signals to transmit data, enabling high bandwidth and long-distance connections ideal for 10G Ethernet uplinks between building floors.
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Last reviewed: May 17, 2026
This 200-301 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 200-301 exam.
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