Question

Please I need answer for all four questions please. ONLY ANSWER IF YOU CAN BE ABLE TO ANSWER TO 4 QUESTIONS. I DONT REALLY NEED LONG ANSWERS.

1.Describe why your nested Virtual Machine has a different DHCP server from your HOST Virtual Machine.

2. Describe why you would set your VM up using the host-mode network.

3. What is the difference between physical core and logical processors

4. What is memory ballooning and how should it be used in virtualization?

THANKS

Answer 1

1)Actually, In a complex network, all of your network clients using only one DHCP server.

Multiple DHCP servers decrease the probability of having a DHCP related network access failure, but it does not guarantee against it. and If a DHCP server for a particular subnet fails, the other DHCP server might not be able to service all the requests from new clients.
Multiple Dynamic Host Configuration Protocol servers cannot share any of the same addresses. If you use more than one DHCP server in your network, each server must be configured with its own unique IP address ranges.

2)A host-only network is set up automatically if you select Use Host-only Networking in the New Virtual Machine Wizard. In Linux hosts, this selection is available only if you enabled the host-only networking option when you installed a Virtual machine software Workstation. when using host-only networking, Then virtual machine and the host virtual adapter are connected to a private Ethernet. Addresses on this Ethernet network are provided by the Virtual machine software DHCP server.

3)Processor consisting of all the cores. Cores are like 2 or 4 parts of the processor that does parallel processing which helps in multitasking without causing much strain on the processor. Each core itself is a processor technically. A single physical core may similar to one or more logical cores.

Modern-day processors have multi-thread in addition to multi-core. The threads are also like cores in functioning but they are not physically different from other threads of the same core. Threads are more of a structural entity rather than physical. Logical cores mean the number of Physical cores times the number of threads that can run on each core, This is known as HyperThreading.

4)Memory ballooning is memory management used in most virtualization techniques, which allows a host system to artificially enlarge its pool of memory by taking advantage or reclaiming unused memory previously allocated to various virtual machines.

The balloon driver in each guest operating system keeps track of the excess memory of each VM and when the hypervisor calls for a memory reclamation through ballooning, the balloon driver in the VM pins down some amount of memory therefore VM cannot consume it, and then the hypervisor reclaims that pinned memory for reallocation.

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