CBSE 2025, Compartment, Set 4

Question

'CKNG Auto' is a big car-selling agency having its Head Office in Delhi. It is planning to set up a new branch in Patiala. The Patiala branch will have four blocks - ADMIN, SALES, SERVICE and INSURANCE. You, as a network expert, need to suggest the best network-related solutions for them to resolve the issues/problems mentioned in points (I) to (V), keeping the following parameters in mind.

![Image Patiala Branch Layout](https://www.edvaya.com/images/cbse/computer-science/2025/set4/q37-patiala-branch.webp)

![Table Distances](https://www.edvaya.com/images/cbse/computer-science/2025/set4/q37-distances.webp)

Distance of Delhi Head Office from Patiala branch = 250 km

Number of computers in each block is as follows:

![Table Computers](https://www.edvaya.com/images/cbse/computer-science/2025/set4/q37-computers.webp)

(I) Suggest the most appropriate location of the server inside the Patiala branch. Justify your choice.

(II) What kind of network (PAN/LAN/MAN/WAN) will be formed by interconnecting all the computers inside a block ?

(III) Draw the most effective cable layout to connect all four blocks of Patiala branch.

(IV) Which device should be used to provide Internet connection to all the computers in the Patiala branch ?

(V) (a) Which is the best wired medium to connect server of Patiala office to the head office at Delhi ?

OR

(b) Is there a need for repeater(s) in Patiala branch ? Why, or why not?

Edvaya · Accepted Answer

The correct answer is Subjective. **(I) Most appropriate location for the server:** The server should be located in the **SALES block**. *Justification:* Based on the 80-20 rule, the server should be placed in the block containing the maximum number of computers. The SALES block has the highest concentration (30 computers), minimizing overall network traffic and improving resource access speed. **(II) Kind of network formed inside a block:** **LAN (Local Area Network)** will be formed by interconnecting all computers inside a specific block. **(III) Most effective cable layout:** A **Star Topology** with the core at the SALES block is highly effective, connecting the other blocks directly to the server hub. *Layout:* * SALES to ADMIN (70 m) * SALES to SERVICE (80 m) * SALES to INSURANCE (100 m) *(Alternatively, a Bus layout like ADMIN - SERVICE - INSURANCE - SALES is also acceptable based on minimum cable length rules).* **(IV) Device for Internet Connection:** A **Router** (or a Modem connected to a Router) should be used to provide and distribute the internet connection to all the computers in the Patiala branch. **(V)** *(a)* **Best wired medium to connect to the Delhi head office:** **Optical Fiber Cable**. It is the most reliable wired medium for long-distance, high-speed communication over 250 km, as it minimizes signal degradation. **OR** *(b)* **Need for repeater(s) in Patiala branch:** **Yes**, repeaters might be necessary depending on the cables used. Twisted pair (Ethernet) cables generally suffer signal attenuation after **100 meters**. Since the distance between the SALES block and the INSURANCE block is exactly 100 meters, installing a repeater would ensure optimal signal strength.

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Computer Science > Computer Networks > Network Fundamentals And Topologies

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