IBM
V5 Global Services Interview Questions and Answers
Q1. How can you can analyse ur responsibilities as a Business Analyst.
As a Business Analyst, I can analyze my responsibilities by identifying key stakeholders, gathering requirements, and creating solutions.
Identify key stakeholders and their needs
Gather and document requirements
Analyze data and create solutions
Collaborate with cross-functional teams
Ensure project goals are met
Continuously improve processes
Communicate effectively with stakeholders
Q2. How can you handle Client Requirements and What is SRS?
Handling client requirements involves understanding their needs and translating them into a Software Requirements Specification (SRS).
Listen actively to the client's needs and ask clarifying questions
Document the requirements in a clear and concise manner
Ensure that the requirements are feasible and align with the project goals
Collaborate with the development team to ensure that the requirements are implemented correctly
Regularly communicate with the client to ensure that the...read more
Q3. Write a query to find the nth highest salary for every department
Query to find the nth highest salary for every department
Use the RANK() function to rank salaries within each department
Filter the results to only include the nth highest salary for each department
Use a subquery to join the results with the department table to get department names
Example: SELECT department_name, salary FROM (SELECT department_id, salary, RANK() OVER (PARTITION BY department_id ORDER BY salary DESC) AS rank FROM employees) WHERE rank = n
Replace 'n' with the de...read more
Q4. How do you unlock a datastage job if it's locked.
To unlock a locked DataStage job, you need to find the user who has locked it and ask them to release the lock.
Check the job status to confirm if it's locked
Identify the user who has locked the job
Contact the user and request them to release the lock
If the user is not available, escalate the issue to the DataStage administrator
Q5. Write a query to remove duplicates , true duplicates.
Query to remove true duplicates
Identify the columns that define a unique record
Use GROUP BY to group the records by those columns
Use HAVING to filter out groups with more than one record
Use DELETE to remove the duplicate records
Q6. Steps you'll take to optimize a datastage job.
To optimize a DataStage job, follow these steps:
Identify and eliminate unnecessary stages or transformations
Reduce the amount of data being processed by filtering or aggregating
Use parallel processing to improve performance
Optimize the use of system resources such as memory and disk space
Tune database connections and queries for better performance
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