Question

4. What Citrix Xen Server feature permits the memory utilization of existing VMs to be compressed so that additional VMs can boot on the host?

a. Readyboost

b. Virtual memory

c. Memory ballooning

d. Dynamic Memory allocation

5. What virtual disk type is used to store changes made to an image when you decide to keep a copy of a previous version of the image?

a. differencing disk

b. disk version

c. versioning disk

d. disk snap

6. Which virtual disk type uses only as much datastore space as the disk initially needs?

a. thick provision eager zeroed

b. thin provision

c. thick provision lazy zeroed

d. thick provision

7. With which virtual disk type is space fully allocated at creation time?

a. thick provisioning

b. thin provisioning

c. fat provisioning

d. NTFS provisioning

Answer 1

4) d) Dynamic Memory allocation

Dynamic memory control (DMC) is used to improve the memory utilization of physical memory in Citrix Xenserver environment. DMC is a memory management feature that enables dynamic reallocation of memory between Virtual memories.

5) a) Differencing disk

It is a special disk image that is only used to hold the differences to another image. The differencing image is referred to as child , which holds differences to its parent.

6) b) Thin provision

Thin provisioned disk only uses as much datastore space as the disk initially needs. If it need more space later, it can grow to maximum capacity allocated to it.

7) a) Thick provisioning

In thick provisioning, the complete amount of Virtual disk storage capacity is pre-allocated on the physical storage at the time of its creation. It consumes all the space allocated to it in the datastore from the beginning and so the space cannot be used by any other Virtual memories .

Hope this will be helpful for you. Please rate this answer if you like it. Thanks for reading.