Answer:
B. until another thread issues a notify on the semaphore.
Explanation:
A semaphore is a variable that is shared between threads and is not negative. It also acts as a calling mechanism that uses two atomic operations wait and signal for synchronization of processes.
A thread that is waiting for a process can be signaled by another thread.
A semaphore puts a thread to sleep until another thread issues a notify on the semaphore.
The wait operation will get a semaphore or otherwise wait if the busy S semaphore is available.
The signal operation will release a semaphore or wake a process if there is a thread waiting for S.
Answer:
The following are the code to this question:
code:
System.out.println(x); //use print method to print value.
Explanation:
In the given question, it simplifies or deletes code in the 11th line. This line has a large major statement.
In the case, the tests fail because only 1 line of output is required by the tester, but two lines are obtained instead.
It's to demonstrate that the input/output or testing requirements function throughout the model.
Answer:
operating systems
Explanation:
The operating systems is shortly known as OS. It is a system software which manages the software resources of the computer, computer hardware and also provides some common services for the various computer programs.
Most of the operating systems available in the market provides some common utility programs such as the search program, a backup program and a storage management program also.
Some common operating systems are : Linux, Microsoft Windows, Ubuntu, macOS, Unix, and many more.
Answer
Directory Services
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<u>Definition</u>
It is a type of software that is used to unify and customize the resources available at the network.
<u>Explanation</u>
This software is used to gather the information and addresses of all computers connected on the network.
It is a type of information store, where all the information related to resources (computer) and services of network has been stored. It also gives administrator rights to the single point to manage whole network resources.
This is the reason, Option "D" is the best choice for me as sole IT employ in a company. I will prefer directory services software to gather the information of all computers of organization and manage users in company.
