WBJECA 2025 — Computer PYQ

Q: How do I solve WBJECA 2025 Computer questions?

Practice WBJECA 2025 Computer previous year questions with step-by-step solutions on Mathem Solvex. Each question includes a detailed explanation and video solution to help you master the concept quickly.

Q: What is the difficulty level of WBJECA Computer questions?

WBJECA Computer questions range from moderate to advanced difficulty. Consistent practice with official previous year papers and topic-wise drills on Mathem Solvex is the most effective preparation strategy.

Q: Are WBJECA previous year papers available for free?

Yes. Mathem Solvex provides free access to WBJECA previous year question papers and topic-wise PDFs. You can download them or attempt them as timed live mock tests directly on the platform.

Question

WBJECA 2025 — Computer PYQ

WBJECA | Computer | 2025

In the TCP/IP model, _____ is responsible for determining the best path for data packets to travel across interconnected networks.

Choose the correct answer:

Explanation

In the TCP/IP networking model, the Internet Layer is the layer responsible for logical addressing, routing, and path determination. It ensures that packets are delivered across different networks by selecting the optimal route from the source to the destination.

The routing decision can be expressed as finding the path $P$ that minimizes the total cost $C$ across a sequence of hops $h$ :

$M in (C) = i = 1 \sum n cos t (h_{i})$

Where $cos t (h_{i})$ is the metric associated with a specific link or network segment. The Internet Layer utilizes protocols like IP (Internet Protocol) to handle this packet forwarding. If we denote the packet arrival time as $T_{a}$ and departure time as $T_{d}$ , the layer ensures the efficiency of travel:

$Δ T = T_{a} - T_{d}$

By minimizing $Δ T$ through efficient path selection, the Internet Layer maintains network stability and connectivity.

Application Layer: Provides network services directly to end-user applications (e.g., HTTP, FTP).
Transport Layer: Responsible for end-to-end communication, reliability, and flow control (e.g., TCP, UDP).
Network Access Layer: Handles the physical transmission of data and hardware addressing (MAC addresses) on the local link.