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Choose the best matching between $\text{Group 1}$ and $\text{Group 2}$

$$\begin{array}{|l|l|}\hline \textbf{Group-1} & \textbf{Group-2} \\\hline  \text{P. Data link layer} & \text{1. Ensures reliable transport of data over a physical point-}\\ & \text{to-point link} \\\hline   \text{Q. Network layer} & \text{2. Encodes/decodes data for physical transmission} \\\hline  \text{R. Transport layer} & \text{3. Allows end-to-end communication between two }\\ & \text{processes} \\\hline \text{} & \text{4. Routes data from one network node to the next} \\\hline \end{array}$$

  1. $\text{P-1, Q-4, R-3}$
  2. $\text{P-2, Q-4, R-1}$
  3. $\text{P-2, Q-3, R-1}$
  4. $\text{P-1, Q-3, R-2}$
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5 Answers

Best answer
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25 votes

Answer is A.

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Option A:

Explanation::

Data Link Layer :: Hop to Hop connection or point to point connection.

Transport Layer:: Service point addressing/Socket to socket connection or end to end connection with full reliability.

Network Layer:: Host to Host

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Encoding and Decoding means at which layer it's done

Presentation layer
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Answer: A. P-1, Q-4, R-3, Physical layer- encodes/decodes data for physical transmission using manchester and differential manchester encoding technique.
Answer:

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