Q. Which clustering algorithm is best for identifying spherical clusters?
A.
DBSCAN
B.
Agglomerative Clustering
C.
K-Means
D.
Gaussian Mixture Models
Show solution
Solution
K-Means is effective for identifying spherical clusters due to its centroid-based approach.
Correct Answer:
C
— K-Means
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Q. Which clustering algorithm is best suited for non-spherical clusters?
A.
K-Means
B.
DBSCAN
C.
Hierarchical Clustering
D.
Gaussian Mixture Models
Show solution
Solution
DBSCAN is effective for identifying clusters of varying shapes and densities, making it suitable for non-spherical clusters.
Correct Answer:
B
— DBSCAN
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Q. Which clustering algorithm is commonly used for grouping similar documents?
A.
K-means
B.
Linear Regression
C.
Decision Trees
D.
Support Vector Machines
Show solution
Solution
K-means is a popular clustering algorithm used to group similar documents based on their content.
Correct Answer:
A
— K-means
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Q. Which clustering algorithm is often used for customer segmentation?
A.
K-Means
B.
Linear Regression
C.
Decision Trees
D.
Support Vector Machines
Show solution
Solution
K-Means is a popular clustering algorithm used for customer segmentation due to its efficiency and simplicity.
Correct Answer:
A
— K-Means
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Q. Which clustering algorithm is particularly effective for identifying clusters of varying shapes and densities?
A.
K-means
B.
Hierarchical clustering
C.
DBSCAN
D.
Gaussian Mixture Models
Show solution
Solution
DBSCAN is effective for identifying clusters of varying shapes and densities, as it does not assume spherical clusters.
Correct Answer:
C
— DBSCAN
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Q. Which clustering algorithm is particularly effective for large datasets with noise?
A.
Hierarchical clustering
B.
DBSCAN
C.
K-Means
D.
Gaussian Mixture Models
Show solution
Solution
DBSCAN is effective for large datasets and can identify clusters of varying shapes while handling noise.
Correct Answer:
B
— DBSCAN
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Q. Which clustering method can automatically determine the number of clusters?
A.
K-means
B.
Hierarchical clustering
C.
DBSCAN
D.
Gaussian Mixture Models
Show solution
Solution
DBSCAN can automatically determine the number of clusters based on the density of data points.
Correct Answer:
C
— DBSCAN
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Q. Which clustering method is best for large datasets with noise?
A.
K-Means
B.
DBSCAN
C.
Agglomerative Clustering
D.
Gaussian Mixture Models
Show solution
Solution
DBSCAN is effective for large datasets with noise as it can identify clusters of varying shapes and sizes while ignoring outliers.
Correct Answer:
B
— DBSCAN
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Q. Which clustering method is more sensitive to outliers?
A.
K-means clustering
B.
Hierarchical clustering
C.
Both are equally sensitive
D.
Neither is sensitive to outliers
Show solution
Solution
K-means clustering is more sensitive to outliers because it uses mean values to determine cluster centroids, which can be skewed by extreme values.
Correct Answer:
A
— K-means clustering
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Q. Which clustering method is more suitable for discovering nested clusters?
A.
K-means clustering
B.
Hierarchical clustering
C.
DBSCAN
D.
Gaussian Mixture Models
Show solution
Solution
Hierarchical clustering is more suitable for discovering nested clusters, as it creates a tree structure that can reveal relationships at various levels of granularity.
Correct Answer:
B
— Hierarchical clustering
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Q. Which clustering method is more suitable for discovering non-globular shapes in data?
A.
K-means clustering
B.
Hierarchical clustering
C.
DBSCAN
D.
Gaussian Mixture Models
Show solution
Solution
DBSCAN is particularly effective for discovering clusters of varying shapes and sizes, making it suitable for non-globular data distributions.
Correct Answer:
C
— DBSCAN
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Q. Which clustering method is more suitable for discovering non-linear relationships in data?
A.
K-means clustering
B.
Hierarchical clustering
C.
DBSCAN
D.
Gaussian Mixture Models
Show solution
Solution
DBSCAN is more suitable for discovering non-linear relationships in data as it can identify clusters of varying shapes and sizes.
Correct Answer:
C
— DBSCAN
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Q. Which clustering method is more suitable for discovering non-spherical clusters?
A.
K-means
B.
Hierarchical clustering
C.
Both are equally suitable
D.
Neither is suitable
Show solution
Solution
Hierarchical clustering can be more suitable for discovering non-spherical clusters as it does not assume a specific shape for the clusters.
Correct Answer:
B
— Hierarchical clustering
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Q. Which clustering method is particularly effective for large datasets?
A.
Hierarchical clustering
B.
K-means clustering
C.
DBSCAN
D.
Gaussian Mixture Models
Show solution
Solution
K-means clustering is particularly effective for large datasets due to its efficiency and scalability.
Correct Answer:
B
— K-means clustering
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Q. Which clustering method is suitable for discovering natural groupings in data?
A.
Hierarchical Clustering
B.
Linear Regression
C.
Random Forest
D.
Naive Bayes
Show solution
Solution
Hierarchical clustering is suitable for discovering natural groupings in data by creating a tree of clusters.
Correct Answer:
A
— Hierarchical Clustering
Learn More →
Q. Which clustering technique can automatically determine the number of clusters?
A.
K-Means
B.
Agglomerative Clustering
C.
DBSCAN
D.
Mean Shift
Show solution
Solution
DBSCAN can automatically determine the number of clusters based on the density of data points.
Correct Answer:
C
— DBSCAN
Learn More →
Q. Which clustering technique is best for large datasets with noise?
A.
K-Means
B.
DBSCAN
C.
Agglomerative Clustering
D.
Gaussian Mixture Models
Show solution
Solution
DBSCAN is effective for large datasets with noise as it can identify clusters of varying shapes and sizes while ignoring outliers.
Correct Answer:
B
— DBSCAN
Learn More →
Q. Which clustering technique is suitable for discovering natural groupings in data?
A.
Hierarchical Clustering
B.
Linear Regression
C.
Random Forest
D.
Naive Bayes
Show solution
Solution
Hierarchical clustering is suitable for discovering natural groupings in data by creating a tree-like structure of clusters.
Correct Answer:
A
— Hierarchical Clustering
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Q. Which data structure allows for both LIFO and FIFO operations?
A.
Stack
B.
Queue
C.
Deque
D.
Array
Show solution
Solution
A Deque (double-ended queue) allows for both LIFO (Last In First Out) and FIFO (First In First Out) operations.
Correct Answer:
C
— Deque
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Q. Which data structure allows for efficient last-in, first-out (LIFO) operations?
A.
Queue
B.
Array
C.
Stack
D.
Linked List
Show solution
Solution
A stack is designed for LIFO operations, allowing the last element added to be the first one removed.
Correct Answer:
C
— Stack
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Q. Which data structure allows for FIFO (First In First Out) access?
A.
Stack
B.
Queue
C.
Array
D.
Linked List
Show solution
Solution
A queue is designed to allow FIFO access, where the first element added is the first one to be removed.
Correct Answer:
B
— Queue
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Q. Which data structure allows for Last In First Out (LIFO) access?
A.
Queue
B.
Array
C.
Stack
D.
Linked List
Show solution
Solution
A stack is a data structure that follows the Last In First Out (LIFO) principle, where the last element added is the first to be removed.
Correct Answer:
C
— Stack
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Q. Which data structure allows for LIFO (Last In First Out) access?
A.
Queue
B.
Array
C.
Stack
D.
Linked List
Show solution
Solution
A stack is a data structure that follows the LIFO principle, where the last element added is the first to be removed.
Correct Answer:
C
— Stack
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Q. Which data structure allows insertion and deletion from both ends?
A.
Stack
B.
Queue
C.
Deque
D.
Array
Show solution
Solution
A Deque (Double-ended queue) allows insertion and deletion from both the front and the back.
Correct Answer:
C
— Deque
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Q. Which data structure can be used to implement a priority queue?
A.
Array
B.
Linked List
C.
Heap
D.
Stack
Show solution
Solution
A heap is commonly used to implement a priority queue because it allows efficient retrieval of the highest (or lowest) priority element.
Correct Answer:
C
— Heap
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Q. Which data structure can be used to represent a graph for Dijkstra's algorithm?
A.
Array
B.
Linked List
C.
Adjacency Matrix
D.
All of the above
Show solution
Solution
Dijkstra's algorithm can be implemented using various data structures to represent a graph, including arrays, linked lists, and adjacency matrices.
Correct Answer:
D
— All of the above
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Q. Which data structure is best suited for implementing a function that reverses a string?
A.
Queue
B.
Stack
C.
Linked List
D.
Array
Show solution
Solution
A stack is best suited for reversing a string because it follows the Last In First Out (LIFO) principle, allowing the last character pushed to be the first one popped.
Correct Answer:
B
— Stack
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Q. Which data structure is best suited for implementing a LIFO (Last In First Out) mechanism?
A.
Queue
B.
Array
C.
Stack
D.
Linked List
Show solution
Solution
A stack is designed to operate in a LIFO manner, where the last element added is the first one to be removed.
Correct Answer:
C
— Stack
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Q. Which data structure is best suited for implementing a LIFO (Last In First Out) system?
A.
Queue
B.
Stack
C.
Array
D.
Linked List
Show solution
Solution
A stack is the best data structure for implementing a LIFO system.
Correct Answer:
B
— Stack
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Q. Which data structure is best suited for implementing a music playlist that allows for easy addition and removal of songs?
A.
Array
B.
Stack
C.
Queue
D.
Linked List
Show solution
Solution
A linked list is best suited for a music playlist as it allows for easy addition and removal of songs without the need for shifting elements.
Correct Answer:
D
— Linked List
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