Answer Posted / s.s.venkatesh

Entry control is otherwise called as WHILE loop,because the
while loop checks the condition at first,and then only
execute the following instructions.

Exit control is also called as DO WHILE loop,because the do
while loop checks the condition at last

What is the difference between malloc() and calloc()?

1850

---

What is an expression?

1053

---

Explain what will the preprocessor do for a program?

1063

---

What do you mean by recursion in c?

1104

---

What is the use of clrscr?

1103

---

What is the difference between declaring a variable by constant keyword and #define ing that variable?

3366

---

Write a program to maintain student’s record. Record should not be available to any unauthorized user. There are three (3) categories of users. Each user has its own type. It depends upon user’s type that which kind of operations user can perform. Their types and options are mentioned below: 1. Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record) 2. Super Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record, Delete Single Record) 3. Guest (Search Record [by Reg. No or Name], View All Records) When first time program runs, it asks to create accounts. Each user type has only 1 account (which means that there can be maximum 3 accounts). In account creation, following options are required: Login Name: <6-10 alphabets long, should be unique> Password: <6-10 alphabets long, should not display characters when user type> Confirm Password: Account Type: Login Name, Password and Account Type should be stored in a separate file in encrypted form. (Encryption means that actual information should be changed and Decryption means that Encrypted information is changed back to the actual information) If any of the above mentioned requirement(s) does not meet then point out mistake and ask user to specify information again. When Program is launched with already created accounts, it will ask for user name and password to authenticate. On successful authentication, give options according to the user’s type.

1983

---

what do you mean by inline function in C?

1053

---

What are the advantages of external class?

1063

---

What are the difference between a free-standing and a hosted environment?

1286

---

Can include files be nested?

1106

---

What is the difference between functions abs() and fabs()?

1153

---

Explain what are binary trees?

1075

---

What are linker error?

1088

---

Can you write a programmer for FACTORIAL using recursion?

1041

---