Which backup WAN link type does the engineer recommend?

A customer has several remote sites connected with the HQ via microwave links.

An engineer has been asked to propose a backup WAN connectivity for these sites with these requirements:

Physical WAN connectivity is not available for most of these sites. A low-cost and fast-to-

implement backup solution must be deployed.

Bandwidth needs for the backup link are low.

Users can tolerate a WAN outage of up to 2 hours.

Which backup WAN link type does the engineer recommend?
A . LTE
B . 802.16 WiMAX
C . laser link
D . 802.15.1 Bluetooth

View Answer

Answer: A