Best to have as many as possible. However usually 3
Company ABC should use passwords but also have them use a code so that not just anyone can get in. Kinda like facebook.
Here are the main functions of an operating system:
1) Manage the resources of the device
The operating system controls how much of each resource is distributed, and it controls things like the processing unit and memory.
2) Establish a interface for the user of the device
The operating system must classify what the classes of the script/code have to do and what they implement.
3) Service application software
The operating system must service each application that is downloaded onto the device. It must balance it's use of storage between apps.
It is okay to modify photos digitally to improve their appearance as long as it doesn't show what they aren't producing.
<h3>What is Advertisement?</h3>
This is the act of persuading people to buy goods and services and is usually done with the aid of the media.
Pictures are usually taken which have to be in the best shape and quality in order to entice people to buy the goods thereby bringing about higher sales and profit for the company.
Read more about Advertisement here brainly.com/question/1020696
Please note that the Problem to be solved from Protocol 1 is not provided hence the general answers. To construct and send, open a network environment a single multi-packet message, simply click "Add Packet" and then click "Send at Once".
<h3>How will the receiver know the order of the packets or if any are missing?</h3>
If the text or message sent does not make any reading sense, or if certain words are jumbled and out of place, then it is clear that something is wrong.
If the messages arrive in a coherent fashion, then the packet was fully received.
<h3>How will the receiver request missed packets and what will the sender do in response?</h3>
Where the users are familiar with the Transmission Control Protocol, lost packets can be detected when there is a timeout. Lost packets are referred to as Dropped packets.
Learn more about Packets at:
brainly.com/question/17777733