DsmbISP Chapter 3 – CCNA Discovery: Working at a Small-to-Medium Business or ISP (Version 4.1)
1. Which type of cable has a solid copper core with several protective layers including PVC, braided wire shielding, and a plastic covering?
2. What is the benefit for a company to use an ISR router?
An ISR provides the functionality of a switch, router, and firewall in one device.
ISRs use a PC operating system for routing traffic, thus simplifying configuration and management.
An ISR is immune to security attacks by hackers and so replaces all other network security measures.
ISRs make routing decisions at OSI Layer 7, thus providing more intelligence to the network than do other routers.