Which three statements are true about the role of routers in the network? (Choose three.)

They propagate broadcasts.
They enlarge collision domains.
They segment broadcast domains.
They interconnect different network technologies.
Each router interface requires a separate network or subnet.
They maintain a common frame format between LAN and WAN interfaces.

ccna exploration 1 chapter 10 Exam Question And Answers 

Which three statements are true about the role of routers in the network? (Choose three.)