(a) Describe the TCP/IP model. (b) Given IP address: 172.16.128.120/25, what is the subnet mask, network address, broadcast address and total…
(a) Describe the TCP/IP model.
(b) Given IP address: 172.16.128.120/25, what is the subnet mask, network address, broadcast address and total useable hosts in this network?
(c) Differentiate between Switch and Router. If you need to block a particular site in your network, which device can be used for this purpose?
(d) What is SDLC? List the stages involved in the SDLC process. Which stage ensures the user acceptance of the system?
From the BCS Technical Cadre (CSE) October 2025 – 49th BCS Written (Special) (BPSC) exam, question 103 of 123.
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