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Select differences between reference type and value type: i. Memory allocated to ‘Value type’ is from heap and reference type is from ‘System. ValueType’ ii. Memory allocated to ‘Value type’ is from ‘System. ValueType’ and reference type is from ‘Heap’ iii. Structures, enumerated types derived from ‘System. ValueType’ are created on stack, hence known as ValueType and all ‘classes’ are reference type because values are stored on heap
The correct statement for a function that takes pointer to a float, a pointer to a pointer to a char and returns a pointer to a pointer to a integer is ____________
The correct statement for a function that takes pointer to a float, a pointer to a pointer to a char and returns a pointer to a pointer to a integer is
With regard to computer memory, which of the following statement(s) is/are TRUE?  (A) Cache memory is 'volatile' memory. (B) Magnetic memory is 'volatile' memory.  (C) Flash memory is 'volatile' memory. (D) RAM is 'volatile' memory. Choose the correct answer from the option given below:
Which of the following statements are true?
Statement I Big data refers to no precise quantity, but generally refers to data in the range of Petabytes and Exabyte, i.e. billions to trillions of records, all from various sources. Big data is generated much faster. than traditional data in much larger quantities.
Statement II Big data interests industries because they are able to learn more patterns and curious variances than smaller data sets, with the capability to provide valuable insights into consumer behaviour, weather systems, financial market activity, or other phenomena.
Statement III Various departments and product lines use various applications within most organisations and store data in separate datasets. These separate databases may contain similar data, but data from one data base to another is not always consistent. This is called data silo.
Which of the following operations on pointers would never work out? (i) Pointer variables can be compared provided both variables point to objects of the same data type (ii) Addition of two pointers (iii) Division of a pointer with a constant (iv) Multiplication of a pointer with a constant 
The order of a leaf node in a B+ tree is the maximum number of (value, data record pointer) pairs it can hold. Given that the block size is 1K bytes, data record pointer is 7 bytes long, the value field is 9 bytes long and a block pointer is 6 bytes long, what is the order of the leaf node?
Consider the following union variable declaration in 'C' language: union data {     int a;     float b;     char string[20]; } data1; If 1, 2, and 4 bytes of memory space are allocated to char, int and float variables respectively, then what will be the memory size of the variable data1?
Which of the following statements is/are FALSE? (i) The size of an integer pointer is always less than the size of a float pointer. (ii) A pointer variable cannot be assigned NULL. (iii) A single pipe (|) symbol is used to represent logical OR operator in 'C'.
In an adjacency list representation of an undirected simple graph G = (V, E), each edge (u, v) has two adjacency list entries: [v] in the adjacency list of u, and [u] in the adjacency list of v. These are called twins of each other. A twin pointer is a pointer from an adjacency list entry to its twin. If |E| = m and |V| = n, and the memory size is not a constraint, what is the time complexity of the most efficient algorithm to set the twin pointer in each entry in each adjacency list?