Interview Questions and Answers

Clustering is grouping similar data points together. Adding partial repository Qm to full repository Qm requires merging the two clusters.

• Clustering is used in data mining and machine learning to group similar data points together.

• Partial repository Qm can be added to full repository Qm by merging the two clusters.

• Examples of clustering algorithms include k-means, hierarchical clustering, and DBSCAN.

Triggering is a mechanism to initiate a process or action based on a specific event or condition.

• Triggering is commonly used in software development to automate tasks or processes.

• Channel triggering is a type of triggering where a specific channel or communication medium is used to initiate an action.

• For example, a chatbot can be triggered to respond to a user's message in a specific channel like Slack or Facebook Messenger.

• Channel triggering can also be used in IoT devices w...read more

C code for printing Fibonacci Series upto n elements

• Declare three variables to store the current, previous and next numbers in the series

• Initialize the previous and current variables to 0 and 1 respectively

• Use a loop to print the next number in the series by adding the previous two numbers

• Loop should run n times to print n elements in the series

Equal and hashcode are related as hashcode is used to determine equality of objects in hash-based collections.

• The hashcode method returns an integer value that represents the object's unique identifier in a hash-based collection.

• The equals method compares two objects for equality based on their content.

• If two objects are equal, their hashcodes must be equal as well.

• If two objects have the same hashcode, it does not necessarily mean they are equal.

• Example: If we have a HashSet...read more

To start a broker, first install the broker software and configure it with necessary settings.

• Install the broker software on the server or machine where it will run

• Configure the broker with necessary settings such as port number, authentication, and authorization

• Start the broker by running the appropriate command or service

• Test the broker to ensure it is functioning properly