A social network analyst is comparing two nodes in a network. Node A has a high degree centrality but low betweenness centrality. Node B has a low degree centrality but high betweenness centrality. Which node is more likely to act as a broker between different groups?

Node A, because it has many connections.

Neither node is likely to be a broker.

Both nodes are equally likely to be brokers.

Node B, because high betweenness indicates it lies on many shortest paths.

What is the main purpose of network visualization in social network analysis?

To store the network data in a compact format for analysis.

To automatically remove noisy edges from the network.

To provide an intuitive, visual representation of the network structure that helps reveal patterns such as clusters, hubs, and bridges.

To compute the exact numerical values of centrality measures for each node.

What does closeness centrality measure for a node?

The influence of the node's neighbors on its own importance.

The number of shortest paths that pass through the node.

The number of direct connections the node has.

The average shortest path distance from the node to all other reachable nodes.

A network has 8 nodes and 10 edges. The network is connected. What is the minimum number of edges that must be removed to disconnect the network?

Cannot be determined from the given information.

Dell Data Science Optimize

Domain 4Objective 1

SNA and Graph Theory DATA-SCIENCE-OPTIMIZE Practice Questions (Page 1)

Part of the Social Network Analysis (SNA) domain, which accounts for 23% of the DATA-SCIENCE-OPTIMIZE exam.

20questions here

4free pages

6concepts

23%of the exam

Questions 1–5

1expert · hard
A data scientist is analyzing a network where community detection is needed, but the network is very large (millions of nodes). They need an algorithm that is scalable and efficient. Which algorithm is most appropriate?
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2expert · medium
A social network analyst is comparing two nodes in a network. Node A has a high degree centrality but low betweenness centrality. Node B has a low degree centrality but high betweenness centrality. Which node is more likely to act as a broker between different groups?
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3foundation · easy
What is the main purpose of network visualization in social network analysis?
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4foundation · easy
What does closeness centrality measure for a node?
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5expert · hard
A network has 8 nodes and 10 edges. The network is connected. What is the minimum number of edges that must be removed to disconnect the network?
Select an answer first

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