Lollipopola, an organization that manufactures lollipops and other candies, uses many local area networks in its corporate office. Lollipopola naturally used earlier forms of Ethernet based on hubs when LANs were first becoming popular. The LAN speeds in the corporate office have been upgraded across the organization several times over the years, with most groups now using $100$ Mbps $($some groups are still using $10$ Mbps$).$ Those using $100$ Mbps are using switches, while the rest are still using $10$ Mbps hubs. The cables for the subnets run to utility closets, and each closet contains the subnet$$s switch or hub. Lollipopola has wireless access only for the offices of the board of directors.

The CTO, recognizing the current trends, has asked Delaney, the network manager, to upgrade the speed of the network, to use more modern technology, and to add additional wireless capabilities. Delaney submitted the following proposal.

Part $1$: LANs

$1.$ Delaney$$s proposal eliminates hubs in favor of switches. Compare and contrast the characteristics of each type of device with regards to the following aspects:

$$ Throughput

$$ Frame Collisions

$$ Frame Loss

$$ Security

$$ Future Growth and Speed Upgrades