Answer Posted / rekha

Dynamic allocation is a pretty unique feature to C (amongst
high level languages). It enables us to create data types
and structures of any size and length to suit our programs
need within the program.

storage classes

auto
register
static
extern
typedef

What is the size of enum in bytes?

1036

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Can we access array using pointer in c language?

1041

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the real constant in c can be expressed in which of the following forms a) fractional form only b) exponential form only c) ascii form only d) both a and b

2614

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What are pointers? Why are they used?

1113

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What is use of integral promotions in c?

1074

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What is difference between Structure and Unions?

1185

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Describe the difference between = and == symbols in c programming?

1298

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What are the advantages of c preprocessor?

1210

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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.

1931

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Define Spanning-Tree Protocol (STP)

1071

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Are there namespaces in c?

1054

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Should a function contain a return statement if it does not return a value?

1017

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Can the size of an array be declared at runtime?

1025

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what is the syallabus of computer science students in group- 1?

2264

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Define VARIABLE?

1106

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