Question Discussion & Solution

The correct answer is 2 * 1024 * 1024 Bytes.

• One thousand and twenty-four kilobytes (1024 KB) is equal to one megabyte (1 MB), where 1 MB is 10242 bytes.
  • ​So 2 Mb equals to 2 * 1024 * 1024 Bytes.

Key Points

• The cache memory
  • The cache memory is located very close to the CPU, either on the CPU chip itself.
  • It can be located on the motherboard in the immediate vicinity of the CPU.
  • So data can be read from it (and written to it)more quickly than with normal RAM. 

Additional Information

• Cache
  • A cache is a special storage space for temporary files that makes a device, browser, or app run faster and more efficiently. 
• There are three general cache levels:
  • L1 cache, or primary cache:
    • It is extremely fast but relatively small and is usually embedded in the processor chip as CPU cache.
  • L2 cache, or secondary cache:
    • It ​is often more capacious than L1.
  • Level 3 (L3) cache 
    • It is a specialized memory developed to improve the performance of L1 and L2.

Inheritance

The capability of a class to derive properties from another class is called Inheritance

• The class that inherits properties from another class is called Subclass or Derived Class.
• The class whose properties are inherited by a subclass is called Base Class or Superclass.

Syntax for Inheritance

class derived_name : access_mode base_class

{

//body of derived class

};

Additional Information 

Polymorphism

Polymorphism is mainly divided into two types:

• Compile-time Polymorphism
• Runtime Polymorphism

Compile-time polymorphism

This is achieved by function overloading or operator overloading.

• Function Overloading - When there are multiple functions with the same name but different parameters then these functions are said to be overloaded
• Operator overloading - When there are multiple operations can be performed by using single operator is called operator overloading for example operator ‘+’ when placed between integer operands, adds them and when placed between string operands, concatenates them

Run Time Polymorphism

It is achieved by Function Overriding.

Conclusion

Feature of Reusability is followed by inheritance so the correct answer is the inheritance.

Given,

Given Expression: 70S7P21R2Q15

According to question :

=70 ÷ 7 + 21 × 2 – 15

Using BODMAS rule,

=10 + 21 × 2 – 15

= 10 + 42 – 15

= 52 – 15

= 37

Hence, value of the given expression is ‘37’.

After reading statements and conclusion we decide that -

i) Some basketball players are not women. → False (We do not have any information about the other basketball player they can be women or men)

ii) Not all basketball players are women.→ False (This is a possibility but we cannot say definitely)

Hence, option 4 is the correct answer.

All terms are arranged in increasing order:

Pebble < Rock < Mountain

Similarly,

Lake < River < Sea