Social Networks | Week 2

Session: JULY-DEC 2023

Course Name: Social Networks

Course Link: Click Here

These are Nptel Social Networks Week 2 Assignment 2 Answers

Q1. Find the diameter for the given graph G in Figure 1
3
4
5
6

Answer: 4

Q2. Which of the following networks is a directed graph?
followers on instagram account
facebook friendship network
collaboration network
ingredients network

Answer: followers on instagram account

Q3. What will be the range of clustering coefficient for any vertex in undirected graph with no loop and multiple edges?
0 to 1
0 to infinity
-infinity to infinity
-1 to +1

Answer: 0 to 1

These are Nptel Social Networks Week 2 Assignment 2 Answers

Q4. Key tag in GraphML is used to assign
Node only
Edge only
Both node and edge
loop

Answer: Both node and edge

Q5. Expand GEXF.
Graphical Extension XML Format
Graphx Extension XML Format
Graph Exchange XML Format
Graph Extend Exchange Format

Answer: Graph Exchange XML Format

Q6. Compute density of the given graph.
0
1/2
1/3
1/4

Answer: 1/3

These are Nptel Social Networks Week 2 Assignment 2 Answers

Q7. For the given graph H in Question 6, If A=highestdegree∑ degree, what will be the value of A?
1
1/2
1/5
2/5

Answer: 1/2

Q8. Choose the data set format which starts with the keyword “graph”?
GML
Graph Exchange XML
txt
GEXF

Answer: GML

Q9. The degree distribution of most real-world networks follows which law?
Zipf’s Law
Benford’s Law
Power Law
Difficult to say; can follow any distribution

Answer: Power Law

These are Nptel Social Networks Week 2 Assignment 2 Answers

Q10. Pick out the clustering coefficient for Node A in the given graph K.
1/6
3/4
1/3
1/2

Q1. Consider the ingredient network where a node represents an ingredient and an edge exists between two nodes if there is a dish where both the ingredients are used. Which of the following statements is true for the nodes of the same community in such a network?
a. ingredients that are often used together
b. ingredients that are never used together
c. ingredients that are rarely used together
d. none of the above

Answer: a. ingredients that are often used together

Q2. For the Synonymy network, the path from Love to Hatred is because
a. Both are synonymous
b. both the words are connected by anonymous words
c. of degradation of synonymity along the path
d. mistake in edges connecting them

Answer: c. of degradation of synonymity along the path

Q3. Identify the network that is a Directed graph.
a. Friendship network
b. Email network
c. Road network
d. Co-authorship network

Answer: b. Email network

These are Nptel Social Networks Week 2 Assignment 2 Answers

Q4. Which of the following statements is True for GML format of networks?
Statement I: Labels and attributes can be added
Statement II: Weights cannot be added
a. Only I
b. Only II
c. Both I and II
d. Neither I nor II

Answer: a. Only I

Q5. The degree distribution of most real world datasets follows
a. Law of large numbers
b. Power law
c. Universal law of Approximation
d. Benford’s law

See also Social Networks | Week 4

Answer: b. Power law

Q6. Given a complete graph with 99 nodes, what is the average clustering coefficient?
a. 0
b. 1
c. 0.5
d. 0.25

Answer: b. 1

These are Nptel Social Networks Week 2 Assignment 2 Answers

Q7. What is the diameter of Graph G?