SCAS - BCA ANSWER SCHEMES

SAINTGITS COLLEGE OF APPLIED SCIENCES SECOND INTERNAL ASSESSMENT EXAMINATION ANSWER KEY, MARCH2019 Department ofBCA, Semester II COMPUTER ORGANIZATION Total     : 80 marks                                                                                           Time: 3Hours Section A Answer any 10 questions. Each question carries 2 marks. 1. Licensed from iStockPhoto. noun. The definition of  instruction  is the act of educating, giving the steps that must be followed or an order. 2.What is register? ...

1.        We can define class members static using static keyword. When we declare a member of a class as static it means no matter how many objects of the class are created, there is only one copy of the static member. A static member is shared by all objects of the class. All static data is initialized to zero when the first object is created, if no other initialization is present. We can't put it in the class definition but it can be initialized outside the class as done in the following example by redeclaring the static variable, using the scope resolution operator:: to identify which class it belongs to. 2.        A constructor is a special type of member function that initialises an object automatically when it is        created. Compiler identifies a given member function is a constructor by its name and the return type. Constructor has the same name as that of the class and it does n...

SAINTGITS COLLEGE OF APPLIED SCIENCES Second Internal Assessment Examination, March 2019 Department of BCA     , Semester II Database Management Systems (Core) ANSWER SHEME SECTION A 1.     Logical data independence:-capacity to change conceptual schema without changing external schema 2.     A  data dictionary  is a file or a set of files that contains a database's metadata. 3.     Any user operation performed on a db. Atomicity,Consistency ,Isolation and durability 4.     Entity is an object that has physical or logical existence Eg: a particular student, an entity type defines a collection of entities that have same attributes eg:Student 5.     Entity type donot have any key attributes of their own are called weak entity type Eg: Dependent Entity type that   has a key attributes of their own are called strong entity type Eg: Employee. 6.   ...