Showing posts with label Computer Science. Show all posts
Showing posts with label Computer Science. Show all posts

Top C++ Interview Questions

Know here: Top C++ Interview Questions

As we know that C++ programming language plays very important role in the field of IT sector and software development. Here I am going to share top C++ interview questions for your job preparation. So let's begin.

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Most Asked: Top C++ Interview Questions

  1. are c++ strings null terminated?
  2. are c++ strings mutable?
  3. are c++ and java similar?
  4. are c++ programmers in demand?
  5. are c++ map ordered?
  6. are c++ vectors thread safe?
  7. are c++ exceptions slow?
  8. are c++ and c# the same?
  9. are c++ and c# similar?
  10. are c++ vectors contiguous?
  11. can c++ run on mac?
  12. can c++ run on linux?
  13. can c++ run on any machine?
  14. can c++ run c code?
  15. can c++ be used to make apps?
  16. can c++ be used to make games?
  17. can c++ be used for web development?
  18. can c++ be used to hack?
  19. can c++ struct have constructor?
  20. can c++ read excel file?
  21. c++ did you forget the &?
  22. c++ did not find a declaration?
  23. c++ ide linux?
  24. when did c++ come out?
  25. where did c++ come from?
  26. how did c++ get its name?
  27. when did c++ 11 come out?
  28. why did c++ add the class keyword?
  29. why did c++ was developed?
  30. how did c++ evolved?
  31. do c++ enums start at 0?
  32. do c++ online?
  33. do c++ loop?
  34. do c++ while?
  35. do c++ programming?
  36. c++ do while loop?
  37. c++ do until?
  38. c++ do nothing?
  39. c++ do while continue?
  40. c++ do while break?
  41. does c++ has garbage collection?
  42. does c++ support multiple inheritance?
  43. does c++ have interfaces?
  44. does c++ work on mac?
  45. does c++ have pointers?
  46. does c++ have strings?
  47. does c++ follow pemdas?
  48. does c++ have classes?
  49. does c++ have booleans?
  50. does c++ short circuit?
  51. had v c++?
  52. c++ have pointers?
  53. c++ have closures?
  54. must have c++ books?
  55. must have c++ libraries?
  56. does c++ have garbage collection?
  57. templates must have c++ linkage?
  58. do i have c++11?
  59. does codecademy have c++?
  60. how c++ works?
  61. how c++ compiler works?
  62. how c++ templates work?
  63. how c++ handles diamond problem?
  64. how c++ is compiled?
  65. how c++ vector is implemented?
  66. how c++ is used?
  67. how c++ exceptions are implemented?
  68. how c++ map is implemented?
  69. how c++ solve diamond problem?
  70. is c++ object oriented?
  71. is c++ hard?
  72. is c++ still used?
  73. is c++ free?
  74. is c++ worth learning?
  75. is c++ a high level language?
  76. is c++ open source?
  77. is c++ harder than java?
  78. is c++ compiled or interpreted?
  79. is c++ strongly typed?
  80. c++ should i use namespaces?
  81. c++ should i use exceptions?
  82. c++ should getters be const?
  83. c++ should i use smart pointers?
  84. c++ should i use auto?
  85. c++ should i use boost?
  86. c++ should i use inline?
  87. c++ should destructor always be virtual?
  88. c++ should i use this?
  89. c++ should all destructors be virtual?
  90. was c++ written in c?
  91. was c++ a joke?
  92. c++ was not declared in this scope?
  93. c++ was originally developed by?
  94. c++ was not declared in this scope error?
  95. c++ was not declared in this scope class?
  96. c++ was not declared in this scope header?
  97. c++ was hidden?
  98. c++ was originally developed by mcq?
  99. c++ was not declared?
  100. what c++ version am i using?
  101. what c++ used for?
  102. what c++ ide should i use?
  103. what c++ can do?
  104. what c++ compiler does xcode use?
  105. what c++ redistributable do i need?
  106. what c++ do i need?
  107. what c++ compiler to use?
  108. what c++ compiler should i use?
  109. what c++ operators cannot be overloaded?
  110. when c++ was developed?
  111. when c++ created?
  112. when c++ destructor is called?
  113. when c++ is your hammer?
  114. when c++ copy constructor is called?
  115. when c++ started?
  116. c++ when to use pointers?
  117. c++ when to use new?
  118. c++ when to use delete?
  119. c++ when to use const?
  120. where c++ is used?
  121. where c++ developed?
  122. where c++ language is used?
  123. where c++ came from?
  124. where c++ programming write?
  125. c++ where is null defined?
  126. c++ where keyword?
  127. c++ where to start?
  128. c++ where are static variables stored?
  129. c++ where to put includes?
  130. which c++ compiler should i use?
  131. which c++ version do i have?
  132. which c++ standard to use?
  133. which c++ operators cannot be overloaded?
  134. which c++ version?
  135. which c++ redistributable do i need?
  136. which c++ ide to use?
  137. which c++ version should i use?
  138. which c++ am i using?
  139. which c++ compiler?
  140. who c++ developer?
  141. c++ who wants to be a millionaire?
  142. c++ who invented?
  143. c++ who uses it?
  144. c++ who made?
  145. c++ who called the function?
  146. who owns c++?
  147. who wrote c++?
  148. who discovered c++ language?
  149. who found c++?
  150. why c++ is bad?
  151. why c++ is better than java?
  152. why c++ for games?
  153. why c++ is the best?
  154. why c++ is better than c#?
  155. why c++ is faster than python?
  156. why c++ over c?
  157. why c++ is good?
  158. why c++ is better than python?
  159. why c++ over java?
  160. will c++ be replaced?
  161. will c++ ever die?
  162. will c++ become obsolete?
  163. will c++ be used in the future?
  164. will c++ run on mac?
  165. will c++ work on a mac?
  166. when will c++?
  167. will c++ be faster than fortran?
  168. will c++ survive?
  169. will c++ run on android?
  170. c++ would you like to continue?
  171. c++ would lose const qualifier?

C++ Question Answers Doubt:

If you have any doubt about C++ programming language. Then you can comment below and ask that question about C++.

Elements of Database

Three important elements of database

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Data, database engine and database schema. Data processing, modification, locked operations, such as data operations, can be performed with the help of database engine. The database schema defines the logical structure of the database. These three fundamental elements of DBMS provide concurrence, security, data integrity and uniform administration procedures. On top of these, the Database Administration Tasks, which supports DBMS, is - Change Management, Performance Monitoring, Toning, Backup and Recovery. Real Life Examples of databases - library systems, banking database, flight and railway reservation systems, inventory systems etc.

Important functions of DBMS:

  1. Concurrency control system: If too many users access a database in the same time then this data is accessible.
  2. Data Storage Management: It provides mechanism for data storage.
  3. Authorization and Security: Defining Security Rules for Users Access.
  4. Backup and Recovery: Regular backup of the data is available and data recovery is required if required.
  5. Data Definition Services: DBMS accepts data definition such as external schema, internal schema, etc.

Definition of DBMS - Database Management System

What is the definition of DBMS? 

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DBMS is the full form of database management system. The most important part of the database is DATA, which has always been an importer, whether it is to maintain the records of students in the school, employees in the office or some other side. Before the computer came in, it stored the data manually in papers, but as the computerization took place and the computer facility got the DBMS system software used to store the data.

DBMS Factors

As DBMS is the full form of the database management system, the system that manages the database. Here the database is called a collection of data which is stored in ek organized way. Database Management System is a system software that has a lot of collection of programs. With the help of DBMS, users and programmers can systematically create, modify, update or retrieve data. There is a lot of benefits to using DBMS compared to traditional computer file-based processing approaches, which are explained further.

DBMS is explained in another way, there is an interface between DBMS-users and databases, which ensures access to data in an organized manner with data consistency. There are many different types of database management systems available in today's date, which is made up of small systems which are called personal computers, from large systems to supercomputers.

A very functional database of the database manages the database engine (which can access the data) as well as the database schema (the logical structure of the database). Since the DBMS has been launched since then, it has made many updations as per today's requirement. Example of DBMS software - Microsoft SQL Server, MS Access, MYSQL, IBM Informix, Oracle Database, PostgreSQL, SQLite, dBase, FoxPro, Firebird etc.

What is Public and Private IP Addresses?

Difference between Public and Private IP Addresses

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Private IP Addresses:

When many computers or devices connect either to the cable or to the wireless, they create a private network. Within this network, a unique IP address is assigned to share files and resets to each device. The IP address of all the devices in this network is called private address.

Public IP addresses:

The public IP address is the ISP (Internet Service Provider). This gives your home network an identity in the outside world. This IP address is unique across the Internet.

Public IP address can be static or dynamic. Static public IP address does not change and it is mainly used for accessing a service (such as an IP camera, FTP server, email server or remote access to the computer) or web hosting on the Internet. It has to be bought from ISP.

Dynamic IP address,
on the other hand, receives the IP address available and changes every time it is connected to the Internet. The maximum Internet user has a dynamic IP address for his computer, which is disconnected when disconnected from the Internet and gets a new IP address when reconnected.

What is IP Address?

IP Address definition

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IP Address means Internet Protocol. This is a Numerical label that is used to identify all the devices (i.e. computers, printers etc) of the network. Any IP address mainly works in two form, one for hosting and network interface identification and second one to identify the location of another device.

When the desingers designed the IP address, the IP address was a 32 bit number and this system was called IPv4. But now with the growth of the Internet, the 32 bit number system which got the IP Addresses started falling short, the designers launched a new IP address system called IPv6. Although IPV4 is still very popular and it is in use, it will convert to IPV6. The new IP system is the IPv6 128 bit address and it was developed in 1995. IPv6 was standardized in 1998 while deployment started from mid 2000. 

The IP address always contains 4 blocks of numbers, which are separated by period. Each block has potential ranges from 0 to 255, which means that each block has 256 potential values. For example, IP address looks like

3 ranges from these addresses have been reserved for special purpose. The first address is related to the default network and are called Broadcast Addresses. The third address is the loopback address, and it shows your own machine or computer.

IP version 4 (IPv4):

Internet Protocol version 4 (IPv4) This is the fourth version of Internet Protocol (IP), which is used to identify network devices. IPv4 addresses are 32 bits tall and support 4,294,967,296 addresses (although many of them are reserved for specific purposes, such as and This is a common example of an IPv4 address. The most easily identifiable IP ranges are -, because these addresses we use at home or office.

IP version 6 (IPv6):

A new version of Internet Protocol version 6 (IPv6) was developed due to the worsening IPv4 addressing potential future due to the popular Internet growth. This is new and unchanged version of IPv4. It is also known as IPng.

Internet Protocol version 6 (IPv6) is 128 bits long. Therefore, it supports 2 ^ 128 internet addresses, which are equivalent to 340.282.366.920.938. addresses. These are many addresses and they are more than enough to continue internet operations for a very long time.

Define Structure of a Program

Structure of a Program

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Probably the best way to start learning a programming language is by writing a program. Therefore, here is our first program:

Best C++ Books

// my first program in C++
#include <iostream>
using namespace std;
int main ()
cout << "Hello World!";
return 0;
 Hello World!
The first panel shows the source code for our first program. The second one shows the result of the program once compiled and executed. The way to edit and compile a program depends on the compiler you are using. Depending on whether it has a Development Interface or not and on its version. Consult the compilers section and the manual or help included with your compiler if you have doubts on how to compile a C++ console program.
// my first program in C++
This is a comment line. All lines beginning with two slash signs (//) are considered comments and do not have any effect on the behavior of the program. The programmer can use them to include short explanations or observations within the source code itself. In this case, the line is a brief description of what our program is.
using namespace std;
All the elements of the standard C++ library are declared within what is called a namespace, the namespace with the name std. So in order to access its functionality, we declare with this expression that we will be using these entities. This line is very frequent in C++ programs that use the standard library, and in fact, it will be included in most of the source codes included in these tutorials.
int main ()
This line corresponds to the beginning of the definition of the main function. The main function is the point by where all C++ programs start their execution, independently of its location within the source code. It does not matter whether there are other functions with other names defined before or after it - the instructions contained within this function's definition will always be the first ones to be executed in any C++ program. For that same reason, it is essential that all C++ programs have a main function.

The word main is followed in the code by a pair of parentheses (()). That is because it is a function declaration: In C++, what differentiates a function declaration from other types of expressions are these parentheses that follow its name. Optionally, these parentheses may enclose a list of parameters within them.

Right after these parentheses, we can find the body of the main function enclosed in braces ({}). What is contained within these braces is what the function does when it is executed.

cout << "Hello World!";
This line is a C++ statement. A statement is a simple or compound expression that can actually produce some effect. In fact, this statement performs the only action that generates a visible effect in our first program. out represents the standard output stream in C++, and the meaning of the entire statement is to insert a sequence of characters (in this case the Hello World sequence of characters) into the standard output stream (which usually is the screen). the cout is declared in the stream standard file within the std namespace, so that's why we needed to include that specific file and to declare that we were going to use this specific namespace earlier in our code.

Notice that the statement ends with a semicolon character (;). This character is used to mark the end of the statement and in fact, it must be included at the end of all expression statements in all C++ programs (one of the most common syntax errors is indeed to forget to include some semicolon after a statement).

return 0;
The return statement causes the main function to finish. the return may be followed by a return code (in our example is followed by the return code 0). A return code of 0 for the main function is generally interpreted as the program worked as expected without any errors during its execution. This is the most usual way to end a C++ console program.

Best PHP and MySQL Books on Amazon

How to learn PHP and MySQL programming for web development?

Know here about top books for learning PHP and MySQL programmin languages for web development. As we know that both are very in the field of web technology. PHP is a server-side programming language mainly used for web development and is also used as a general purpose programming language. It has become a rage in the Internet world. PHP: The Complete Reference, as the name suggests is a complete reference guide to the widely popular PHP.

This book deals with explaining how to personalize the PHP work space, define operators and variables, manipulate strings and arrays and the way in which one can use HTML. It also covers details on how to access database information, track client-side preferences using cookies, execute FTP and e-mail transactions and publish your applications to the Web. Additionally, this book deals in PHP's next generation Web 2.0 design features including AJAX, XML and RSS.

Computer Science (1st, 2nd, 3rd and 4th year) Syllabus (AKTU/UPTU)

AKTU/UPTU Computer Science (Branch Code: 10) (First, Second, Third and Fourth Year) 2016 Syllabus

Download syllabus for Computer Science branch of 1st, 2nd, 3rd and 4th year of UPTU now AKTU, Uttar Pradesh.

  1. Computer Science (B.Tech) AKTU (UPTU) First Year Syllabus
  2. Computer Science (B.Tech) AKTU (UPTU) Second Year Syllabus
  3. Computer Science (B.Tech) AKTU (UPTU) Third Year Syllabus
  4. Computer Science (B.Tech) AKTU (UPTU) Fourth Year Syllabus