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

• A. Program counter
• B. Status register
• C. Instruction register
• D. Program status word

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

• A. Stack pointer
• B. Cache
• C. Accumulator
• D. Disk buffer

Run time mapping from virtual to physical address is done by ____________

• A. Memory management unit
• B. Cpu
• C. Pci
• D. None of the mentioned

Memory management technique in which system stores and retrieves data from secondary storage for use in main memory is called?

• A. Fragmentation
• B. Paging
• C. Mapping
• D. None of the mentioned

The address of a page table in memory is pointed by ____________

• A. Stack pointer
• B. Page table base register
• C. Page register
• D. Program counter

Program always deals with ____________

• A. Logical address
• B. Absolute address
• C. Physical address
• D. Relative address

The page table contains ____________

• A. Base address of each page in physical memory
• B. Page offset
• C. Page size
• D. None of the mentioned

What is compaction?

• A. A technique for overcoming internal fragmentation
• B. A paging technique
• C. A technique for overcoming external fragmentation
• D. A technique for overcoming fatal error

Operating System maintains the page table for ____________

• A. Each process
• B. Each thread
• C. Each instruction
• D. Each address

In internal fragmentation, memory is internal to a partition and ____________

• A. Is being used
• B. Is not being used
• C. Is always used
• D. None of the mentioned