## NPTEL Social Networks Week 2 Assignment Answers 2024

1. Which of the following statements is/are True?

Statement I – Email network is a directed network.

Statement II – Co-authorship network is an undirected network.

- I only
- II only
- Both
- None

Answer :-For AnswerClick Here

2. What is the clustering coefficient of a node that has 4 neighbors and 3 connections between those neighbors?

- 0.25
- 0.5
- 0.75
- 1

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3. Calculate the density of the given graph.

- 10/21
- 9/42
- 9/21
- 10/42

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4. Find the clustering coefficient of node B in the given graph.

Answer :-

5. Which statement accurately reflects the characteristics of node degrees according to Power law?

- every individual in a social network has an equal number of connections
- exhibit a uniform distribution of connections among all users
- a small number of individuals have a substantially higher number of connections compared to the majority
- each node has an identical degree, promoting equality in connectivity

Answer :-

6. What is the diameter of the following graph?

- 1
- 2
- 3
- 4

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7. Which of the following formats was created as a part of Gephi project?

- GML
- GEXF
- GraphML
- Pajek

Answer :-

8. Given is a graph G with ∣V∣=n number of nodes and ∣E∣ number of edges. In which of the following cases, we can guarantee that G is connected?

- ∣E∣=n
- ∣E∣=n−1
- ∣E∣=n(n−1)/2
- ∣E∣=nlog2n

Answer :-

9. Which of the following statements is True for GML format of networks?

Statement I: Labels and attributes can be added

Statement II: Weights can be added

- I only
- II only
- Both
- None

Answer :-

10. In the mentioned synonymy network, why might there be a path between words like “love” and “hatred”?

- Due to faulty edges
- To enable users with contradictory paths to find antonyms
- Words can undergo semantic shifts, acquiring new meanings or evolving to represent opposite concepts
- The network algorithm identifies unrelated words as synonyms

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