Questions

LDI is the capacity to change the conceptual schema without having to change external schemas or application programs.

Lithium is the lightest of all the metals due to its low atomic number among meetals

1.Hardware abstraction layer

2.Kernel

3.Subsystems

4.System Services.

In a cached system, the base addresses of the last few referenced pages is maintained in registers called the TLB that aids in faster lookup. TLB contains those page-table entries that have been most recently used. Normally, each virtual memory reference causes 2 physical memory accesses- one to fetch appropriate page-table entry, and one to fetch the desired data. Using TLB in-between, this is reduced to just one physical memory access in cases of TLB-hit.

All the above will stay where they are when they goes off. Basically anything that can swithch on or off will come under this.