Operating System

The purpose paging in the page table is too:

• Store pages of memory

• Manage Input and Output operation

• Translate Virtual address to physical address

• store program instruction

In which of the following address translation is performed through the hardware

• static linking

• dynamic linking

• dynamic loading

• stattic loading

Consider a system that has 4K pagesof 512 bytes in size in the logical address space. The number of bits of logical address is

• 21

• 20

• 19

• 18

Which of the paging memory Management technique has internal fragmentation?

• first page

• last page

• middle page

• first & last page

The primary object of time sharing OS is to

• Avoid Thrashing

• Provide fast response to the user of the computer

• Provide fast execution of process

• optimize computer memory usage

In the context Operating system which of the following statement is/are correct with respect to paging?

• paging inhurs memory overhead

• paging helps solve the issues of external fragmentation

• page size has no impact on internal fragmentation

• multi level paging is necessary to support pages of different size

Contiguous memory allocation having variable partition suffers from

• External fragmentaton

• Internal fragmentation

• Both Internal & External fragmentation

• None of the above

The ______________ is a memory management scheme that permits the physical address space of a process to a non contiguous

• Swapping

• Fragmentation

• Segmentation

• Paging

CPU fetches the instruction from memory according to the value of ____________

• program counter

• Status register

• Intstruction register

• program status word

A memory buffer used to accommodate a speed differential is called ____________