You purchased a Multistation Access Unit (MAU) for your network. Which type of network interface card (NIC) should the workstations use to connect to this MAU?

Introduction / Context:
Different LAN technologies use different concentrators and cabling conventions. In classic IBM-style networks, a Multistation Access Unit (MAU) serves as the hub for Token-Ring stations. Identifying the appropriate NIC type prevents mismatches between endpoint interfaces and wiring centers.

Given Data / Assumptions:

• A MAU has been purchased to interconnect client machines.
• We must choose the correct NIC type for workstations.
• Options include storage buses, backup software, and other unrelated items intended as distractors.

Concept / Approach:
MAUs are specific to Token-Ring networks (IEEE 802.5). They create a logical ring by internally wiring stations in sequence while providing bypass/relay mechanisms to keep the ring intact if a station disconnects. Therefore, the NICs must speak Token-Ring, not Ethernet or storage interfaces.

Step-by-Step Solution:
Identify what a MAU is used for: Token-Ring wiring center.Match workstation NICs to the MAU’s technology.Select Token-Ring NICs as the appropriate choice.

Verification / Alternative check:
IBM 8228 and similar MAUs historically connected Token-Ring stations at 4 or 16 Mbps; Ethernet uses hubs/switches rather than MAUs, and storage (SCSI) or backup software (ArcServe) are unrelated to NIC selection.

Why Other Options Are Wrong:
Fast SCSI Wide: Storage interconnect, not a LAN NIC.

ArcServe: Backup software, not a NIC.

Ethernet: Uses hubs/switches; not compatible with Token-Ring MAUs.

None of the above: Incorrect because Token-Ring is correct.

Common Pitfalls:
Assuming “hub-like device” implies Ethernet; MAUs are specifically for Token-Ring.

Final Answer:
Token-Ring