HR Interview Questions

Tell me about the most boring job you have ever had.

Job is never boring because if you think job is boring, then you have nothing to else to do. But it's true that I am little bit lazy that type of work which I don't like.

In my point of view, the most boring job you can ever do is sitting idle. Working in any company and in any position will definitely give me a chance to learn something and upgrade myself to be a better person for the organisation and to society.

Why did you resign from your previous job?

First of all, I very thankful to my current company for given an opportunity to work with them and I learned a lot like time management, work under pressure and to talk with officials.

The reason why I am changing is as per salary was not enough for me and also I need to support my father financially so I need to change to grow myself professionally and financially.

I hope this is the platform or job where I can enhance my skills and knowledge.

And I am sure that I will put my 100% knowledge and experience to benefit from this company.

Thank you.

First, I thankful for my previous organisation. Because I learnt a lot of things from there.

For example: time punctuality, to do a work on time, work under pressure, smart work.

According to me, changes are necessary for everyone.

Enhance my skills, knowledge, for personal growth and financial growth, I left my previous organisation.

This organisation is, an excellent platform to improve my skills, knowledge, personal and financial growth.

Thank you Sir/Mam.

Python Quiz

1.What is output for − 'search'. find('S') ?

s -1 ‘ ‘ None of the above

2.What is the output of following code −[ (a,b) for a in range(3) for b in range(a) ]

[ (1,0),(2,1),(3,2)] [ (0,0),(1,1),(2,2)] [(1,0),(2,1),(2,1)] [ (1,0),(2,0),(2,1)]

3.How can we generate random numbers in python using methods?

random.uniform () random.randint() random.random() All of the above

4.Suppose we have a set a = {10,9,8,7}, and we execute a.remove(14) what will happen ?

We cannot remove an element from set. Method is executed but no exception is raised. Key error is raised. There doesn’t exist such method as remove.

5.Which code is used to open a file for binary writing?

''w'' ''wb'' ''r+'' ''a''

Types of Type Casting in C: Upcasting and Downcasting

There are two type of casting available in C language, known as upcasting and downcasting. Upcast means converting lower (like int) to higher (float, long int) data type. The reverse is called downcast. 

Upcast results in no information loss. But downcast results in information loss as lower data type have lesser bits and can hold the lesser amount of information/data. One data type considers higherif maximum value allowed to store in it is greater than the other data type. For example, float is lower compared to double because double can store more precisions

Second program in this chapter is example of upcasting(int value is converted to float) and the third program is example of down casting(float is converted to int)

C Type Casting with examples for Float to Int/Int to Char

Variables

Void Type

Void type is defined using keyword 'void'. It's used to represent absence of data. For example, if a functions is declared with 'void' return type, it means that function doesn't return any values. But you cannot define a variable with 'void' type, program will not compile. You can declare void pointers though. 

Variables

In C programs, sometimes you may need to store some values so that you can later do some calculation or operation on the stored values. To hold these values we need variables. The variable can be considered as a type of identifiers that are used to represent some type of value or information in a designated portion of a program. A variable can be assigned different values in the course of its life span, i.e. the value stored in a variable may change. However, the type of data associated with a variable can never be changed.

Variable declaration

Declaration means associating a variable with some data type. Declaring variable will enforce that the variable can only represent values of already specified data types. A declaration has a specific format. Let’s consider following declaration as an example.

int number;

By this declaration, we are specifying that the number is a variable of data type integer. Until now, the variable number does not contain the value we want. The values can be assigned to the variable as follows

Enumeration Types

Enumeration types are used to hold a value that belongs to a particular set. Keyword 'enum' is used to define enumeration types. Each element in the enumeration type is assigned with a consecutive integer constant starting with 0 by default.

Syntax for declaring enum is given below

enum type_name{value_1, value_2, value_3,...}

Each of the values in the value set (ie; value_1, value_2 etc) are integer constants. By default, they start with 0 and increments by 1. You can override this values your self. Let's take a look at it with the help of an example.

#include <stdio.h>
enum day_of_week{ sunday, monday, tuesday, wednesday, thursday, friday, saturday};
int main(){
    enum day_of_week today;
 //Assigns enum value sunday to the variable today.
    today = sunday;
    printf("%d", today);
    return 0;
}
 
Output:
0

In the above program enum type "day_of_week" consists of 7 values; Sunday to Saturday. Each of them is internally assigned with an integer constant starting with 0 by default. 'Sunday' gets 0, 'Monday' gets 1 and so on. Here the 'printf' statement will output the value 0, because we've assigned enum value 'Sunday' to the variable 'today' of type 'day_of_week'.

Other Basic Type Specifiers

• Signed : 'signed' specifier helps us to declare signed integer or character type variable, which can hold positive as well as negative values. By default integer and character type variables are signed.
• Unsigned : On the other hand, 'unsigned' qualifier helps us to declare variables which can hold only positive values starting from 0. If you are working with values that can’t be less than 0 like the number of cars or visitor count, you should use 'unsigned' as it gives one extra benefit. Declaring an int as unsigned can it able to hold up to double the maximum value supported by int.
• Long and Short :'Long' and 'short' specifier enables us to declare integers and double (only long specifier supported with double, short is not supported) with different lengths. Short integers are 16 bit long and have -32768 to 32767 range. Long integers have greater range -2147483647 to +2147483647.

C Programming Tutorial

To learn any new programming language, for example C, C++, Java, etc., most commonly used approach is to write a basic HelloWorld program first and then learn the concepts from that. Let's follow the same approach here and first write a C program and learn about basic syntax of C programming.

HelloWorld in C:

#include<stdio.h>
int main()
{
    printf("Hello world!");
    return 0;
}

How to Run the HelloWorld C Program:

To compile and run the above C program,

• Or you can make use of online services like IdeOne. For learning purposes, this is the better option.

Hadoop Pig

Pig is developed on top of Hadoop. It provides the data flowing environment for processing large sets of data. The pig provides a high-level language. It is an alternative abstraction on top of Map Reduce (MR). Pig program supports parallelization mechanism. For scripting of the Pig, it provides Pig Latin language.

Pig takes Pig Latin scripts and turns into a series of MR jobs. Pig scripting having its own advantages of running the applications on Hadoop from the client side. The nature of programming is easy, compared to low level languages such as Java. It provides simple parallel execution, the user can write and use its own custom defined functions to perform unique processing.

Pig Latin provides several operators like LOAD, FILTER, SORT, JOIN, GROUP, FOREACH and STORE for performing relational data operations. The operators implement data transformation tasks with simple lines of codes. Compared to MR code, the Pig Latin codes are very less in lines and gives better flexibility in some IT industrial use cases.

Big Data Analytics

Big Data Analytics (BDA) comes into the picture when we are dealing with the enormous amount of data that is being generated from the past 10 years with the advancement of the science and technology in different fields. To process this large amount of data and getting valuable meaning from it in a short span of time is a really challenging Task. Especially when four V’s that comes into the picture, when we discussing about BDA i.e. Volume, Velocity, Variety and Veracity of data.

Why and When to go for Big Data Analytics

Big data is a Revolutionary term that describes the Very large amount (Volume) of unstructured (text, images, videos), structured (tabular data) and semi-structured (json, xml) data that have the potential to be mined for information.

Volume (data at scale)

Volume is about large amount of data that is being generated daily from different type of sources, i.e. Namely, we can say like Social media data (Facebook, Twitter, Google), Satellite images, mining and sensor data, Different Type of Network logs generated from servers.

Integrating and processing these huge volumes of data, stored across a scalable and distributed environment poses a business huge challenge to analysts. Big IT Giants like Yahoo, Google generates Peta Bytes of data in less span of time. IT industry, the increase in data volume is in exponential terms compared to the past.