What certification might be required of a computer repair person?

Users on the network can no longer access a custom application that uses TCP 8090 hosted on the DMZ. A technician has verified that the firewall is permitting the TCP port. Which of the following commands would verify the server is still accepting connections on TCP 8090?

A. netstat B. ipconfig C. telnet D. nslookup

You are working on a report for a data storage firm.  The report details the sales performance of the firm for the past 3 years. You decide to create a table to display the information. Describe how to delete a row or column in your table.

What will be an ideal response?