<u>Software modelling:</u>
Software modelling can be defined as the ways of expressing the design of the software.
Software modelling tools have great significance in developing and representing the design of the software.
The software modelling tools can be used to estimate the work needed to done per task by determining the work to be done on each task that constitutes the build of the software and then the individual amount of work done per task can be added for all the tasks and the total amount of work to be done is obtained as a result.
ANSWER . D watch for bicyclists
Answer:
I had long thought about it, but I could never justify investing in a desktop PC. I feared it would mostly end up sitting idle at my desk, as its value and performance continue to depreciate. “I’m better off buying a beefy laptop,” I kept telling myself. But I was wrong all along.

It’s been a little over a month since I gathered the courage to put together a rig, and I couldn’t be happier about my choice. It’s not only been a pleasure to use it for work, but it’s also rekindled my love for gaming, which has been a refreshing addition to my daily routine.
As fun as it was to assemble my very first PC, there were quite a few things that went wrong in the process. In this piece, I wanted to share some of those hiccups, and also offer some tips on how to avoid them.
To be clear, this isn’t an all-encompassing instructable on how to build a PC — it’s merely a few tips on how to approach the process. You’ll still have to do most of the legwork yourself.
He should not pick up. so 4th is the best answer
Answer:
10,000 packets
Explanation:
Wi-Fi Protected Access (APA) is a data encryption protocol for WLANs which represents an improvement over WEP(Wired Equivalent Privacy). Temporal Key Integrity Protocol (TKIP) enhances WEP by adding a security mechanisms on top of WEP to increases its resilience. It includes a rekeying mechanism to provide fresh keys which are updated every 10,000 packets.