In Aruba CX 8325 switches, what is true about port-groups?

Question

Options

• ACan have transceivers that operate at 100 Gbps
• BEach port-group can have different speed transceivers
• CAll port-groups transceivers need to be of the same speed
• DMust have the same speed transceivers within a port-group

• A
  4% (2)
• B
  2% (1)
• D
  94% (46)

Explanation

On Aruba CX 8325 switches, port-groups share underlying SERDES (serializer/deserializer) hardware resources, which means all transceivers within a single port-group must operate at the same speed - you cannot mix, say, a 10G and a 25G transceiver in the same group. This is option D, and it reflects a physical hardware constraint, not a configuration policy.

Why the distractors are wrong:

• A is misleading - while the CX 8325 platform may support high-speed ports, "can have 100 Gbps transceivers" is not a defining rule about port-group behavior and doesn't describe the speed constraint that governs them.
• B is the opposite of the rule - you cannot mix different speed transceivers within the same port-group; that's exactly what's prohibited.
• C goes too far in the other direction - different port-groups can have different speeds from one another; the restriction is only within a single group, not across all groups.

Memory tip: Think of a port-group like a lane on a highway - all cars (transceivers) in the same lane must travel at the same speed, but different lanes can go at different speeds. "Same lane = same speed" = D.

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