Virtual machine

What is a virtual machine?

• A physical machine used for hosting software

• A software emulation of another system or program

• A method for duplicating hardware

• A tool for data encryption

What is the role of virtualisation software?

• To translate guest instructions into host-readable instructions

• To manage multiple hardware systems

• To prevent the host computer from accessing the virtual machine

• To enhance the hardware capabilities of the host

What does a system virtual machine emulate?

• A single program

• Both hardware and software of a guest system

• Only the guest system’s network functionalities

• The graphical user interface of the guest system

What is a process virtual machine primarily used for?

• Emulating an entire operating system

• Emulating a single program or process

• Managing physical hardware resources

• Running multiple virtual machines on a single host

What does the Java Virtual Machine (JVM) translate?

• Source code into machine code

• Machine code into source code

• Byte code into machine code

• Source code into byte code

Which of these is a key benefit of virtual machines?

• They consume minimal processing power and memory.

• They emulate hardware perfectly without limitations.

• They eliminate the need for physical servers entirely.

• They allow programs from obsolete platforms to run on modern systems.

What is a limitation of virtual machines?

• They cannot emulate software from outdated platforms.

• They require substantial processing power and memory.

• They only support Linux-based guest systems.

• They cannot be backed up or restored.

Which scenario is NOT ideal for using a virtual machine?

• Running an older operating system for compatibility.

• Hosting multiple servers on a single physical machine.

• Running a Linux environment on a Windows host.

• Running a high-performance video game requiring specialized hardware.

What is the advantage of running multiple virtual machines on one host?

• It allows a single computer to perform as multiple independent servers.

• It requires no additional processing power or memory.

• It eliminates the need for virtualisation software.

• It restricts the user to running only one operating system at a time.

What happens if the host system lacks sufficient resources?

• The virtual machine adapts and operates at full efficiency.

• The host system automatically shuts down the virtual machine.

• The virtual machine’s performance degrades significantly.

• The virtual machine bypasses the host's resource limitations.