At what layer of the osi model do the ip, icmp, and arp protocols operate? a. network b. session c. application d. transport

Idon understand these and need some ! ?

It is vital to research each of the services you plan to disable before implementing any change, especially on critical machines such as the: a. servers in the test environment. b. domain controller and other infrastructure servers. c. desktops that have previously been attacked. d. desktops used by upper-level management.

When building customer relationships through email what should you not do? question 2 options: utilize proper grammar, spelling, and punctuation type in all capital letters use hyperlinks rather than attachments respond to all emails within 24 hours