220-801 · Question #842
Which of the following is the MAXIMUM cable length for 802.3 Ethernet?
The correct answer is C. 328 Feet (100 meters). The IEEE 802.3 Ethernet standard specifies a maximum cable segment length of 100 meters (328 feet) for twisted pair cabling to ensure signal integrity.
Question
Which of the following is the MAXIMUM cable length for 802.3 Ethernet?
Options
- A33 Feet (10 meters)
- B100 Feet (30 meters)
- C328 Feet (100 meters)
- D1200 Feet (366 meters)
How the community answered
(36 responses)- A3% (1)
- B3% (1)
- C89% (32)
- D6% (2)
Why each option
The IEEE 802.3 Ethernet standard specifies a maximum cable segment length of 100 meters (328 feet) for twisted pair cabling to ensure signal integrity.
10 meters is far below the actual IEEE 802.3 standard maximum and represents no recognized Ethernet cable length specification.
30 meters is not the defined standard limit for Ethernet twisted pair cabling and would unnecessarily restrict network installations.
IEEE 802.3 Ethernet standards including 10BASE-T, 100BASE-TX, and 1000BASE-T define a maximum horizontal cable run of 100 meters (328 feet) between a network device and a switch or hub. This limit exists to prevent signal attenuation and ensure that collision detection timing requirements are met.
366 meters greatly exceeds the signal propagation and attenuation limits of twisted pair Ethernet cabling, causing severe data errors and network failures.
Concept tested: IEEE 802.3 Ethernet maximum twisted pair cable length
Source: https://standards.ieee.org/ieee/802.3/7071/
Topics
Community Discussion
No community discussion yet for this question.