Technical Interview Questions and Example Answers
By Indeed Editorial Team
Updated 11 October 2022
Published 6 June 2021
The Indeed Editorial Team comprises a diverse and talented team of writers, researchers and subject matter experts equipped with Indeed's data and insights to deliver useful tips to help guide your career journey.
Technical job interviews for positions in the tech industry are generally quite different from regular job interviews. During the job interview, you may be asked a range of questions related to educational aspects, behavioural aspects, situational aspects and technical experience aspects. Whether you are a fresher or someone who has been in the tech industry for a considerable amount of time, you will benefit from knowing what to expect.
In this article, we will review some of the most commonly asked technical interview questions, along with tips and example answers to help you practice and prepare for your technical job interview.
Purpose of technical interview questions
The purpose of technical interview questions is to assess if your level of technical knowledge is on par with what is required for the position you are interviewing for.
Depending on the company, technical interviews can take place over the phone, via video conferencing online and in person. The interviewing process may be an hour-long or consist of several interview rounds that can take up an entire day. During these time-frames, you can expect to face everything from regular technical proficiency questions to brainteasers and problem-solving questions.
In these interviews, you will have to prove that you have the necessary skills and abilities to handle the job responsibilities and meet the company's expectations.
General technical interview questions
The general technical interview questions that you encounter during the interview will be from different categories. These include technical education and training interview questions, behavioural interview questions, situational interview questions and technical knowledge and experience interview questions. Here we will find out why such questions are a mainstay of technical interviews and get an idea of what employers look for in prospective employees.
Related: How to Crack a Job Interview
Interview questions about your technical education and training
The interviewer will ask you to specify the technical education and training you have undergone and will attempt to assess how well-suited you are for the available position with their company. Your response should include your formal educational qualifications and any additional courses you have done and certifications and awards you have obtained. Here are some sample questions:
What are your technical certifications and how do they make you eligible for this job?
Where did you undergo your technical training?
What steps do you take to keep yourself updated on evolving trends in the technical field?
Interview questions about behavioural aspects
As with regular job interviews, you can expect to be asked various general behavioural questions during a technical interview. The purpose of these questions is to help the interviewer get to know you and assess if your personality and behavioural traits will be a good fit in the long term for their company. To do well with these types of behavioural interview questions, you can consider using the Situation, Task, Action and Result (STAR) method. With this technique, you will be able to customise your relevant work experience to the interview questions.
You will be able to clearly describe how you reacted in a specific situation to complete a required task and the action you took and its subsequent result. Here are a few example questions:
How successful are you at managing your work and life balance?
What experience do you have in working with a team? Or do you prefer to work by yourself?
What has been the project you are most proud of so far? What was your specific contribution to it?
Interview questions about situational aspects
The purpose of interview questions about situational aspects is to assess your problem-solving skills. The interviewer may describe a hypothetical workplace event and ask how you would resolve the challenges it presents. These types of situations can arise in real life and the interviewer wants to find out if you can quickly and effectively deal with them.
The STAR technique can work with situational interview questions too, so consider using it. And when you provide relevant examples, make sure you also describe the technical skills and knowledge you used to resolve the various issues. Here are some example interview questions:
Did you ever have to collaborate with a difficult colleague on a work project? How did you manage to get along?
During a project, was there ever a time when you did not know how to proceed? What did you do then?
How do you make sure that you have the correct estimates for a project?
Interview questions about technical knowledge and experience
You can expect to encounter a range of coding and non-coding technical interview questions to evaluate your technical expertise. The interviewer will want to make sure that your technical knowledge and skills match the requirements of the job. It will be to your advantage if you can explain your work process and describe the technical concepts you use in clear, understandable terms. Here are a few examples of technical questions that you can expect in a job interview:
What are some of the programming languages that you regularly use in your work?
What is your experience in using Visual Studio?
What do you know about in-tier architecture? Describe its elements and their use.
Have you ever designed a database? Please explain how you did it.
In-depth technical interview questions and example answers
Here are some in-depth technical interview questions and samples answers that you can refer to for your technical job interview preparation:
1. Explain the benefits of working in an Agile environment and the drawbacks as well.
Interviewers often ask this question during technical interviews to test your understanding of the Agile environment and understand your attitude towards the collaborative and customer-centric methodology.
Example: "Agile is a popular SDLC methodology widely adapted for project management purposes in the IT industry. An Agile environment promotes flexibility, autonomy, collaboration and openness to change within the company. There are many benefits of working in an Agile environment. Given its flexibility and adaptability, you can continue to refine the project design and requirements as the project work progresses. You can emphasise creativity and innovation in an Agile environment, prioritise your requirements and significantly reduce your overhead expenses. You can also focus on development and improve the project quality.
Additionally, you can get customer feedback and inputs and ensure better customer satisfaction. With employee autonomy and team collaboration, you can expect higher employee satisfaction too."
2. Explain the differences between REST and SOAP web services.
The purpose of this technical interview question is to assess your understanding of communicating over a network, using the REST model for public APIs and SOAP for working in distributed enterprise environments.
Example: "REST stands for Representational State Transfer and SOAP stands for Simple Object Access Protocol. They are used for accessing web services and the principal difference between them is that REST is an architectural pattern for data transmission and SOAP is a communications protocol. This means that REST can use SOAP as an underlying protocol, but SOAP, being a protocol, cannot use REST.
REST can work with HTML, XML, JSON and plain text, while SOAP can only work with XML formats. REST uses Uniform Service locators to access a hardware device's components, while SOAP uses service interfaces to provide information about its functionality to client applications. REST requires less bandwidth than SOAP."
3. In network architecture, explain the role of DMZ.
By asking this technical interview question, the interviewer wants to test your knowledge of improving network security.
Example: "A home or business computer network consists of computers and mobile devices that you set up to use with a local area network that uses a broadband router to connect to the internet. As the broadband router filters external traffic, allowing only legitimate messages to pass through, it acts as a protective firewall. A DMZ Network, which is also known as a demilitarised zone network or a perimeter network in the computer security industry, is a separate sub-network that connects the company's external-facing services to the internet. The firewall isolates it and it creates a security layer between the local area network and the internet. So, even if your computer gets compromised at some point, the network will remain safe."
Tips for technical interviews
The following tips may help you make a good impression at technical job interviews:
Your response should explain your logical reasoning and problem-solving process.
If you do not understand the question or need more information to respond to it, do not hesitate to ask the interviewer.
If you do not know the answer to a question, tell the interviewer you do not know or, better yet, ask them probing questions to get more information. That could help you find the right answer.
Practice answering brain teasers and whiteboard coding assignments.
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