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Top 10 Technical Interview Questions

Submitted By: B Brake in Interview Tips category

Interview process brings you face to face with your prospective employer. Interview questions and answers allow both of you to know each other better. It is very important that you are prepared for interview questions asked during an interview. When you want to work in a technical field, you should prepare for technical interviews. Here are top 10 technical interview questions that you can use.

Facing a technical interview is difficult as you should be able to demonstrate your soft skills as well as hard skills. Soft skills include communication, interpersonal skills, your presentation, etc. Hard skills include technical problem solving, programming skills, and any other skills that are purely technical and are involved in your job profile. Your employer may look out for a competent technical employee with a combination of skills.

Fundamental knowledge of programming

How will you use computer technology to an elevator?

You should consider storing data, catalogue management, query processing, updating data while answering this question.

Analytical questions:

Here the interviewer will try to check your creativity and analytical skills. So it will help you to be more inventive when you answer analytical questions.

Why is a manhole always round?

You can use your creativity while you answer this question. This question may have a lot of possible answers.

The cover is round because the first person who invented it liked round things. Others followed.
A square lid may fall in the hole when held diagonally. A round one will fall only when it breaks.
Round manhole will expand evenly and not crack the surrounding.
Circles do not have edges. This will prevent any stress that may come at the edge.
Round hole is interesting and easy to bore.

Puzzles:

If 1 and a ½ hen can lay 1 and a ½ egg in a day, how many hens does it take to lay six eggs?

1 hen.

Tell the no of black spots in the illusion?

None

Algorithms and coding:

If you have a history of URL’s how will you determine if a given link already exists?

You can use a hash table to check the link. You can use the checksum of the link as a key for hashing. When the page loads, phrase all URL’s from the page, take their checksum, and compare them with the hash table. The links that match are displayed in different colors.

Computer languages (C /C++ and Java):

Describe mechanism of virtual functions and virtual tables?

A virtual table contains all the class member functions that are declared as virtual. This will help to find out the desired function at that time. Virtual tables have additional pointers in the vtable. Invoke the function pointers indirectly through the vtable pointer.

Databas:

Give difference between a ‘where’ clause and a ‘having’ clause?

You use where clause when you want to restrict data being accessed from database. It is used before you retrieve your result.

Having clause is used after you retrieve your data. It is a kind of filtering command.

What is normalization and renormalization?

Normalization of data means eliminating redundant information from a table. Here you organize the data so that you can make future changes easier.

Renormalization means you allow redundancy in the data. Here the performance is improved with simplified data retrieval and manipulation.

Internet technology:

What is ping?

Ping is short form for Packet Internet Groper. It sends datagram’s or packets to the IP address of target host.

How does Ethernet work?

It is normally a shared media LAN. All stations on the segment share the total band width.

This article is of great help if you are going to face a technical interview. If you follow these top 10 technical interview questions you will definitely shine in your job interview.

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