Modifiers matching protocol:

• common,
• reliable,
• basic,
• useful,
• external,
• outdated,
• level,
• complex,
• major,
• simple,
• active,
• secondary,
• secure,
• old,
• open,
• streaming,
• standard,
• wan,
• complicated,
• available,
• popular,
• individual,
• modern,
• traditional,
• key,
• underlying,
• layer,
• electronic,
• current,
• medical,

Simple categories matching wan:

• device,
• system,
• hardware,
• network,
• equipment,
• protocol,
• product,
• connection,
• communication,