All single switches in the stack system are called member switches and can be divided into different roles according to their functions. Please match the roles of the following member switches with…

Question

Options

• AMain switch maps to 'Responsible for managing the entire stack. There is only one'; Backup switch maps to 'When the main switch fails, it will take over all services of the original main switch.'; 'From the switch' maps to 'Used for service forwarding, multiple units can exist in a stacking system.'
• BNot provided in the source.
• CNot provided in the source.
• DNot provided in the source.

• A
  74% (37)
• B
  16% (8)
• C
  4% (2)
• D
  6% (3)

Explanation

Option A is correct because it accurately maps each stack role to its defined function: the main switch acts as the single control plane manager for the entire stack, the backup switch exists solely to assume the main switch's responsibilities if it fails, and slave (or "from") switches handle the actual data forwarding workload and can number more than one.

Options B, C, and D are not provided in the source material, which typically means they contain incorrect or shuffled role-to-function mappings - common distractors might swap the backup and slave switch definitions, or incorrectly suggest multiple main switches can exist.

The key distinction to remember is the hierarchy: one main switch controls, one backup switch waits, and many slave switches forward. Think of it like a company org chart - one CEO (main), one VP ready to step in (backup), and many workers doing the actual tasks (slave/from switches).

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