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Ensono
Practice questions for the skills this job lists, plus common questions for any interview. These are for practice: we don’t know the employer’s actual questions.
What is the difference between a list and a tuple, and when would you use each?
Python
How do generators work, and why would you use one over a list?
Python
How do equals() and hashCode() work together in a HashMap?
Java
Explain the difference between checked and unchecked exceptions.
Java
Write a query for the second-highest salary in each department.
SQL
Explain the difference between INNER, LEFT and FULL joins with an example.
SQL
A server is slow. Which commands do you run first, and what do you look for?
Linux
What happens, step by step, when you type a URL into a browser?
Networking
Explain the difference between TCP and UDP and where each is used.
Networking
Explain the CAP theorem with a real example.
Distributed systems
How would you make a payment API idempotent?
Distributed systems
What do you know about Ensono's products and customers?
Ensono
Tell me about yourself in two minutes, focused on this role.
About you
Why this company, and why this role?
About you
Tell me about a time you disagreed with a teammate. What happened?
About you
Describe a time you failed or missed a deadline, and what you changed afterwards.
About you