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# Hierarchical Clustering Interview Questions & Answers

• September 07, 2022
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• ### Group of alike data points is known as

• a) Clusters
• b) Simple points
• c) Group points
• d) None

• ### From the below find the data types on which we can perform clustering

• a) Graphs
• b) Time-series data
• c) Multimedia data
• d) All the above

Answer - d) All the above

• ### Agglomerative clustering is an example of____________ .

• a) Hierarchical
• b) Distance-based clustering
• c) Both a and b
• d) K means

Answer - c) Both a and b

• ### Clustering analysis is unsupervised learning since it does not require ______ training data.

• a) Unlabeled
• b) Labeled
• c) Both
• d) None of the above

• ### A tree diagram used to show the arrangement of clusters in hierarchical clustering is known as_______.

• a) Bar plot diagram
• b) Histogram
• c) Dendrogram
• d) None

• ### From the below, select the types of hierarchical clustering

• a) Divisive
• b) Agglomerative
• c) K means
• d) Both a and b

Answer - d) Both a and b

• a) True
• b) False

• a) True
• b) False

• ### ________ is used most frequently to measure similarity

• a) Manhattan Distance
• b) Euclidean distance
• c) Far by distance
• d) None of the above

• ### _______stores the distances between each point.

• a) Proximity matrix
• b) Primary matrix
• c) Minor data matrix
• d) Proximity sensor

• ### Agglomerative Clustering is the ____________.

• a) Top-down approach
• b) Bottom-up approach
• c) Side to side approach
• d) Center to end approach

Answer - b) Bottom up approach

• ### Divisive Clustering is the ____________

• a) Top-down approach
• b) Bottom-up approach
• c) Side to side approach
• d) Center to end approach

• ### From the below find the methods used to measure the similarity

• d) All the above

Answer - d) All the above

• ### Hierarchical clustering is also used for __________.

• a) Finding na
• b) Outlier detection
• c) Fake value detection
• d) All the above