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14 Unix interview Q&As

Q1 How do you remove the Control-M characters from a file?
A1 Using the sed command that replaces Control-M with nothing

Note: The ^M is typed on the command line with ctrl+v and ctrl+M

Q2 How will you search for a property named “inbox”

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14+ SQL beginner interview Q&As

SQL interview Questions & Answers is a must for any developer as all non-trivial applications need to talk to a database with CRUD operations. Q3 – Q15 are very popular with the interviewers. If you want to quickly practice your SQL skills try DB Fiddle or install MySQL locally as...



15 Banking & finance domain knowledge interview Q&As

The investment banks and financial organizations do pay a very competitive remunerations and many of you aspire to work for such organizations. Here are a  few questions and answers on different securities, derivatives, and FIX engine/trading system basics to familiarize yourself  with some of the terminologies. Q1. What are the different asset...



15 Database design interview Q&As

Q1. What is normalization? When to denormalize? A1. Normalization is a design technique that is widely used as a guide in designing relational databases. Normalization is essentially a two step process that puts data into tabular form by removing repeating groups and then removes duplicated data from the relational tables....



15+ SQL scenarios based interview questions answered

Q1 How will you go about identifying duplicate records in a table?
A1 The following SQL query will do the trick.

Note: Interviewer is testing if you understand that the aggregate queries need to have a “GROUP BY

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17 XML basics interview Q&As

Q1. What is an XML? A1. XML stands for eXtensible Markup Language. XML is a grammatical system for constructing custom markup languages for describing business data, mathematical data, chemical data etc. XML loosely couples disparate applications or systems utilizing JMS, … Read more ›...



20 Groovy closure interview Q&As with examples

Method Vs. Closure Q1. What are the differences between a method and a closure? A1. Both methods and closures add behavior, and they basically have a block of code containing expressions and statements within two curly brackets i.e. {…} . … Read more ›...



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Java Interview FAQs

800+ Java Interview Q&As

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