Answer Posted / rohit shori

data abstraction
3 types:-

Physical level describes how a record (e.g., customer) is
stored.
Logical level: describes data stored in database, and the
relationships among the data.
type customer = record
name : string; street :
string; city : integer; end;
View level: application programs hide details of data
types. Views can also hide information (e.g., salary) for
security purposes.

What does the nocreate and noreplace flag ensure when they are used for opening a file?

673

---

What is the difference between an external iterator and an internal iterator? Describe an advantage of the external iterator.

556

---

Is string an object in c++?

652

---

How can you tell what shell you are running on unix system?

633

---

Mention the ways in which parameterized can be invoked.

532

---

---

What is the use of turbo c++?

551

---

What will strcmp("Astring", "Astring"); return a) A positive value b) A negative value c) Zero

637

---

Is there any function that can skip certain number of characters present in the input stream?

582

---

Why Pointers are not used in C++?

621

---

Can c++ do everything c can?

592

---

What is static class data?

573

---

What is the this pointer?

630

---

What is c++ in english?

573

---

Is it possible to provide default values while overloading a binary operator?

761

---

What are the effects after calling the delete this operator ?

553

---