Hi,
JVM - Java Virtual Machine
Hope this helps.
r3t40
Answer:
b) Bounded Waiting
Explanation:
int currentThread = 1;
bool thread1Access = true;
bool thread2Access = true;
thread1 { thread2 {
While (true) {
While (true)
{
while(thread2Access == true)
{
while(thread1Access == true)
{
If (currentThread == 2) {
If (currentThread == 1)
{
thread1Access = false; thread2Access = false;
While (currentThread == 2);
While (currentThread == 1);
thread1Access = true; thread2Access = true;
} }
/* start of critical section */ /* start of critical section */
currentThread = 2 currentThread = 1
… ...
/* end of critical section */ /* end of critical section */
thread1Access = false; thread2Access = false;
… ...
} }
} }
} }
It can be seen that in all the instances, both threads are programmed to share same resource at the same time, and hence this is the bounded waiting. For Mutual exclusion, two threads cannot share one resource at one time. They must share simultaneously. Also there should be no deadlock. For Progress each thread should have exclusive access to all the resources. Thus its definitely the not the Progress. And hence its Bounded waiting.
Answer:
Authorization
Explanation:
Authorization is a security process to determine access levels related to system resources such as files, services, computer programs, data and application features. This is the method of allowing or denying access to a resource which enables the user to get access to various services and resources depending on the user's identity.
Authorization is the process that checks if a user has the permission to get access to a particular file or perform a particular action, ensuring that user has successfully authenticated himself. It refers to defining access policy.
For example a system administrator determines for the system device, in multi-user computer systems, which users are granted access to system and its resources and privileges are granted.
MS Excel is a spreadsheet programme developed by Microsoft in 1985, with the sole purpose of helping businesses compile all their financial data, yearly credit, and yearly debit sheets. Fast forward to the future after 31 years, it is now the most commonly used program for creating graphs and pivot tables.
