试题详情
- 单项选择题Which benefit does digital subscriber line (DSL) systems for broadband access provide to the user?（）
A、Secure access to company extranet
B、Dedicated lines for high security data transfer
C、Simple solution for high-quality digital video using coaxial cable
D、Data and audio signals that share the same communications infrastructure
- D
关注下方微信公众号，在线模考后查看
热门试题