Answer:
Explanation:
DBA's main responsibility is making sure that there is enough CPU, disk, memory, and network bandwidth available, as well as making backups every so often. Meanwhile, the database designers/developers are responsible for investigating and implementing what the end-user needs and making sure that the database holds all of the information that the end-user will be using.
Depends on how you wanna do it, through iTunes or whatever other you are syncing from
Contrast is important when designing a web page for many reasons. One of the most important reasons is because if you don't have contrast, you won't be able to read what is written on the page. Your eyes will have to strain really hard or it just simply won't be possible to read at all. Another really important reason is that contrast makes the web page look visually appealing. Whereas, if you don't have contrast it is all kind of jumbled together. As you can see there is a plethora of reasons contrast is important.
I hope that helps u!!
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Answer: Switch, router, firewall
Explanation:
The function of the switch is to distribute the network to different networks similar in functioning to that of the hub but it performs filtering of the traffic present in the network using various traffic filtering algorithms.
The router whose main function is to route packets across the network is also used to connect between LANs and between LAN and a WAN.
The firewall is typically installed on systems or in servers or in routers with it most important function to filtering the traffic and minimize the packet delivery delay in LANs.
I believe it is C, I'm so sorry if im incorrect.