I applied online. The process took 4 weeks. I interviewed at Digitaltest (Cairo, Cairo Governorate) in Jul 2025
Interview
The interview contains different types of questions:
- IQ problems
- Problem Solving and DSA
- C++
- C#
- OS
The interview takes about 2 hours. The interviewers are very collaborative.
Interview questions [1]
Question 1
There is a closed room with three light bulbs inside.
- You have a closed room containing three light bulbs.
- Outside the room, there are three switches, each connected to exactly one bulb (but you don’t know the mapping).
- You can toggle the switches (on/off) in any way before entering the room.
- You may open the door and enter the room only once.
- Once inside, you cannot touch the switches again — you can only observe the bulbs.
How can you determine which switch controls which bulb in a single visit?
First HR Interview about self Second on-screen test ( like online test ) Contains more than 100 questions Some iq question and other technical question All of questions Average to advance and litel basics question
I applied through an employee referral. The process took 4 weeks. I interviewed at Digitaltest (Cairo, Cairo Governorate) in Jun 2022
Interview
It was a fair interview.
They covered everything about the basics and Programming concepts.
The Interviewer was professional and very friendly. They even guided me through the interview process.
They are brilliant people and the place is so clean
Interview questions [1]
Question 1
You have a 3 and a 5 litre water container, each container has no markings except for that which gives you it's total volume. You also have a running tap. You must use the containers and the tap in such away as to exactly measure out 4 litres of water. How is this done?
Can you generalise the form of your answer?
