De mot Spoke tiep quan thanh Hub, co can biet dong lenh khong? Khong. Cung mot nang luc duoc chia thanh ba tang truy cap: ky su dung tang sau nhat de kiem soat chi tiet, dieu duong chi can nhan mot nut vao dung thoi diem. Boc nang luc cua quan tri he thong thanh giao dien ma bat ky ai cung co the van hanh.
