(a) Differentiate between DNS server and caches. (b) Draw three tier architecture of web technology. (c) What is loopback address of a computer?

(a) Differentiate between DNS server and caches.

(b) Draw three tier architecture of web technology.

(c) What is loopback address of a computer?

From the BPSC Assistant Programmer (ICT) 2019 – Written exam, question 6 of 9.

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