Since the hypervisor, a component of virtualization, is in charge of managing all physical memory, it can make any memory pages left over in each guest virtual machine available to other virtual machines or the host computer.
<h3>What Exactly Is A Hypervisor?</h3>
A hypervisor is a class of computer software, firmware, or hardware that builds and manages virtual machines (also known as a virtual machine monitor, VMM, or virtualizer). A host machine is a computer on which a hypervisor is running one or more virtual machines, and a guest machine is a specific virtual machine. The hypervisor controls how the guest operating systems are executed and provides them with a virtual operating environment. The visitor often uses the native hardware to carry out instructions, unlike an emulator. The virtualized hardware resources may be shared by several instances of various operating systems. For instance, Linux, Windows, and macOS instances can all operate on a single real x86 computer. Contrastingly, with operating-system-level virtualization, each instance (often referred to as a container) only needs to share a single kernel, while the guest operating systems—such as various Linux distributions using the same kernel—can differ in user space.
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A quick way to restore the arrow pointer after you have used it for drawing is to press the esc key. The esc key is <span>used for any of the different </span>functions<span>, as to interrupt or cancel the current process or running program, or to close a pop-up window.</span>
Answer:
There is an error in "String s=s1-s2 ";
Explanation:
In java programming, we can subtract subtract two strings variable with "-" operator.Java programming does not support an overload of the '-' operator.In java, we can use only "+" operator to append two strings variable.There is no such method to subtract strings in java.Therefore in the given code String s=s1-s2 will give an "bad operand type" error because we can not subtract one string variable from the second string variable.
Answer:
Option (d) is the correct answer.
Explanation:
An Array is used to store multiple variables in the memory in the continuous memory allocation on which starting index value is starting from 0 and the last index value location is size-1.
In java programming language the array.length is used to tells the size of the array so when the user wants to get the value of the last element, he needs to print the value of (array.length-1) location so the correct statement for the java programming language is to print the last element in the array named ar is--
System.out.println(ar[ar.length-1]);
No option provides the above statement, so option d (None of these) is correct while the reason behind the other option is not correct is as follows--
- Option a will prints the size of the array.
- Option b also gives the error because length is an undeclared variable.
- Option c will give the error of array bound of an exception because it begs the value of the size+1 element of the array.
