TCP/UDP

Can someone help me with these questions? Thanks

When navigating through the packet capture, why are there many other TCP/UDP connections beyond the requested www.snhu.edu, when doing a DNS query?

Secondly, from the packet capture, why are there packets from other areas of www.snhu.edu like alumni.snhu.edu?

I would appreciate any kind of help. Thanks Rest of the information is on UFV -Engineering 125

 
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