Week 4

Question 1

-is a cisco proprietary layer 2 protocol that is used to gather information about Cisco devices which share the same data link.
-is media and protocol independent and runs on all cisco devices, such as routers, switches, and access servers.

Answer 1

CDP

Question 2

-the deivce sends periodic - to connected devices. These share information about the type of deivce that is descovered, the name of the devices, and the number and type of the interfaces.

Answer 2

CDP advertisements

Question 3

-is a vendor-neutral neighbor discovery protocol similar to CDP.
-works with network devices, suc as routers, switches, and wireless LAN access points.
-This protocol advertises its identity and capabilities to other devices and receives the information from a physically-connected Layer 2 device.

Answer 3

Link Layer Discovery Protocol (LLDP)

Question 4

-it is the primary source of time for the system.
-it is important to synchronize the time across all devices on the network.
-When the time is not synchronized between devices,it will be impossible to determine the order of the events and the cause of an event.

Answer 4

software clock