Which term describes grouping multiple physical Ethernet links into a single logical link for faster, fault-tolerant connections?

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Study for the Network Security Instructional Terminology Test. Enhance your knowledge with multiple choice questions, each accompanied by hints and explanations. Ensure readiness for your exam!

Multiple Choice

Which term describes grouping multiple physical Ethernet links into a single logical link for faster, fault-tolerant connections?

Explanation:
Grouping multiple physical Ethernet links into one logical link is EtherChannel, a form of link aggregation. By combining several cables, you get more overall bandwidth and built-in fault tolerance: traffic is distributed across the member links, so if one link fails, the others keep the connection active. In practice, devices negotiate and manage the group (often with LACP, per IEEE 802.1AX), and the hashing algorithm decides which link carries each packet. For reliability, all member links should share the same speed, duplex, and MTU, and both ends must be configured to participate. The total effective bandwidth equals the sum of the linked ports, while VLANs, bridges, and routing protocols describe other network functions and do not perform this kind of link consolidation.

Grouping multiple physical Ethernet links into one logical link is EtherChannel, a form of link aggregation. By combining several cables, you get more overall bandwidth and built-in fault tolerance: traffic is distributed across the member links, so if one link fails, the others keep the connection active. In practice, devices negotiate and manage the group (often with LACP, per IEEE 802.1AX), and the hashing algorithm decides which link carries each packet. For reliability, all member links should share the same speed, duplex, and MTU, and both ends must be configured to participate. The total effective bandwidth equals the sum of the linked ports, while VLANs, bridges, and routing protocols describe other network functions and do not perform this kind of link consolidation.

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