Write a program that subsets the loads and subsets the stock market data in target. csv. Load the the data from target. csv as target. Create a new data frame, tgt_march, by subsetting the last 19 days of the target data frame. Create a new data frame, tgt_vol, by subsetting the Date and Volume columns. Create a new data frame, tgt_close, by subsetting the Date and Close columns. Using the template from this link, create separate line charts for Volume and Close and upload the resulting output.

1. you have a small business that is divided into 3 departments: accounting, sales, and administration. these departments have the following number of devices (computers, printers, etc.): accounting-31, sales-28, and administration-13. using a class c private network, subnet the network so that each department will have their own subnet. you must show/explain how you arrived at your conclusion and also show the following: all available device addresses for each department, the broadcast address for each department, and the network address for each department. also, determine how many "wasted" (not usable) addresses resulted from your subnetting (enumerate them).

You have been supporting csm tech publishing's windows server 2016 server network for over a year. the office has two windows server 2016 servers running active directory and a number of other roles. management has informed you that a small sales office is opening in the same building three floors up. the sales manager wants to install a sales application on a server located in the sales office. this server will have limited physical security because there's no special room dedicated for it, which means it will be accessible to non-it personnel and visitors. you're considering installing windows server 2016 server core on the new server because accessing its console regularly probably won't be necessary, and this server will be managed from one of the other csm tech publishing servers. what are the benefits and drawbacks of using server core for this branch office? what are some things you should do to set up this server management environment?

Explain how email technologies enable the exchange of messages between users. find out the typical parts of an email address and explain each part.