The tier of the three-tier architecture consists of computers, phones, and other mobile devices that have browsers that request and process web pages.

User tier

Explanation:

In accordance with three-tier architecture of client and server architecture, user tier is the level where the end users are present to interact with the devices such as computer, laptops, phones or mobiles. Users are able to access these devices through interface.

the save and close button

some have built technology like spoofed call blockers into their networks, so there's nothing you would even have to install.

this happens because the number is known for scamming, they don't want it to me known as "scam likely." perhaps it's just a telemarketer. maybe it's an identity thief. it might even be a scam artist.  

either way, "scam likely" is probably not an old friend whose number you forgot that you saved. it's your wireless carrier's way of letting you know: answer at your own risk.

explanation:

to combat the seemingly rising epidemic of spam callers in the u.s., the nation's four major wireless carriers have been trying out new methods to reduce the number of unsolicited calls americans receive each day.

some have built technology like spoofed call blockers into their networks, so there's nothing you would even have to install.

hope this . mark me brainliest.