What is the importance of a leaky abstraction?

Do Read Joel Spolsky wrote a blog post entitled <a href="https://www.joelonsoftware.com/2002/11/11/the-law-of-leaky-abstractions/" target="_blank" rel="noreferrer noopener">The Law of Leaky Abstractions</a>

Technical Interview Questions For Freshers

Q: What is Internet?

A collection of interconnected networks.

Q: Describe the OSI model?

Explain Physical Layer. Data Link Layer. Network Layer. Transport Layer. Session Layer. Presentation Layer. The presentation layer prepares data for the application layer. ... Application Layer. The application layer is used by end-user software such as web browsers and email clients.

Q: Given a node in a binary tree, please implement a function to retrieve its next node in the in-order traversal sequence. There is a pointer to the parent node in each tree node.

You will need to write a program to traverse the tree.

Q: Tell me about your most recent project?

Tell about you recent project e.g library management system . the challanges you faced. Is it cloud based ? etc.

Q: What are the blogs you follow to stay updated ?

Say you follow Twitter handle of top It companies and its blogs.

Q: What is the approach you would take to convert a project from C to Java?

first, we need to understand the purpose of the program, understand the control flow and data flow. Finally understand the code files logic. Then we can implement the same in Java.

Q: What do you understand by cloud computing?

A service offering where you do not own the infrastructure. <a href="https://wpsbutton.com/iaas-vs-paas-vs-saas/">Iaas paas and SaaS</a> services are offered over cloud.

Q: What are web services?

A software API which can be executed over web with web service calling tools.

56 Interview Questions

If you are in campus or planning to take some interviews in near future, you would be wondering what kind of technical interview questions for freshers are asked during the interview process.

As a general process for freshers there are campus interviews and if campus has not happened and if you have applied directly as a fresher, there can be telephonic interviews and a personal face-to-face interview. It depends upon company to company and they may have their own process.

We will touch across some technical questions as you have landed here looking for some Technical Interview Questions For Freshers. We will be using C. C++ , java , SQL for any coding examples.

Let’s get started.

Why they ask Technical Interview Questions For Freshers

They may be many other subject and skills you possess but a technical interview tests your analytical abilities, your problem-solving approach, your logical thinking which is very essential to frame solutions for problems in real-world scenarios. You may be exposed to brainteasers , reasoning or programming questions and quizzes as well.

You scored X marks in computer science. Any challenges you couldn’t score more?

You can say probably the topics you prepared better, not many questions came. or something which does not show any incompetence.

How do you check a number is a palindrome or not?

In C language Below code returns 1 when number is palindrome, otherwise returns 0. #define NUMBER_LENGTH 20 int IsPalindrome_solution1(unsigned int number) { char string[NUMBER_LENGTH]; sprintf(string, "%d", number); return IsPalindrome(string); } int IsPalindrome(const char* const string) { int palindrome = 1; if(string != NULL) { int length = strlen(string); int half = length >> 1; int i; for(i = 0; i < half; ++ i) { if(string[i] != string[length - 1 - i]) { palindrome = 0; break; } } } return palindrome; }

What is Internet?

A collection of interconnected networks.

Describe the OSI model?

Explain
Physical Layer.
Data Link Layer.
Network Layer.
Transport Layer.
Session Layer.
Presentation Layer. The presentation layer prepares data for the application layer. …
Application Layer. The application layer is used by end-user software such as web browsers and email clients.

Given a node in a binary tree, please implement a function to retrieve its next node in the in-order traversal sequence. There is a pointer to the parent node in each tree node.

You will need to write a program to traverse the tree.

Tell me about your most recent project?

Tell about you recent project e.g library management system . the challanges you faced. Is it cloud based ? etc.

What are the blogs you follow to stay updated ?

Say you follow Twitter handle of top It companies and its blogs.

What is the approach you would take to convert a project from C to Java?

first, we need to understand the purpose of the program, understand the control flow and data flow. Finally understand the code files logic. Then we can implement the same in Java.

What do you understand by cloud computing?

A service offering where you do not own the infrastructure. Iaas paas and SaaS services are offered over cloud.

What are web services?

A software API which can be executed over web with web service calling tools.

What is Phishing?

Phishing is a way to entice users to click on malicious links over internet and harm the network , machine or data.

What is the difference between rest and soap service?

Check out Rest vs soap

What is the real problem with global variables?

A global variable is a variable that is available throughout an entire application. It has be be handled carefully as can be changed by any piece of code of sub programs.

What is Ethical Hacking?

Ethical Hacking is when a hacker uses his hacking skill to find flaws in the system and report to the company to fix the issues. Ethical hackers are often part of a company’s security workforce.

You are given half a glass of Water. What would you say the glass is half-filled or half-empty?

You can say both.It depends upon the context the glass is given. Don’t start thinking.

How do you cope under pressure? our work has a busy schedule.

My strong technical expertise help me to do the job ahead of time and I can handle pressure with ease.

Why use source control while programming?

To allow multiple users to work on the project and have the history of changes.

What is your understanding of cargo-cult programming?

The phrase cargo-cult programming (or cargo-cult software engineering) is sometimes used to describe an undesirable approach to programming.
Describe what the term means and why this approach is undesirable

Describe some potential downsides of code comments?

Actually code comments are good to have and tell you experiecence with code comments like while reusing a code programmers do not focus on commetns and just modify the code. be ready with some more.

Tell us about a coding project of which you’re proud of?

This is a common question and the aim is to give you opportunity to display how passionate you are about programming.

What is the importance of a leaky abstraction?

Do Read Joel Spolsky wrote a blog post entitled The Law of Leaky Abstractions

More Interview Questions