<Li> To scale vertically ( or scale up / down ) means to add resources to ( or remove resources from ) a single node in a system , typically involving the addition of CPUs or memory to a single computer . Such vertical scaling of existing systems also enables them to use virtualization technology more effectively , as it provides more resources for the hosted set of operating system and application modules to share . Taking advantage of such resources can also be called `` scaling up '' , such as expanding the number of Apache daemon processes currently running . Application scalability is the improved performance of running applications on a scaled - up version of the system . </Li>
<Li> To scale vertically ( or scale up / down ) means to add resources to ( or remove resources from ) a single node in a system , typically involving the addition of CPUs or memory to a single computer . Such vertical scaling of existing systems also enables them to use virtualization technology more effectively , as it provides more resources for the hosted set of operating system and application modules to share . Taking advantage of such resources can also be called `` scaling up '' , such as expanding the number of Apache daemon processes currently running . Application scalability is the improved performance of running applications on a scaled - up version of the system . </Li>
adding a cpu to a single node is which type of scalability
adding a cpu to a single node is which type of scalability
vertical up
vertical up