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Assuming ballooning That is possible, under Which Circumstances three

Posted by Xaus Xavier Nadal 24th on April 2013

Assuming ballooning That is possible, under three Circumstances Which Might the VMkernel use a swap file for a virtual machine running? (Choose 3)
A 50 percent of the configured memory has Already Been balooned
B. The Mem CtlMaxPercent value is between 10 and 25 percent
C. Memory can not be reclaimed Quickly enough.
D. VMware Tools is not installed
E. The virtual machine is starting up

Good.

Este próximo viernes tengo el examen VCP51 y me gustaría que me dijerais cuales son las 3 posibles respuestas ya que yo creo que son la CDE, pero no lo tengo del todo claro.

I think that A está clara que es trampa ya que el valor del 50 por ciento se refiere a la compresión no al ballooning: http://www.vmware.com/files/pdf/mem_mgmt_perf_vsphere5.pdf 11 page

ESXi Determines if a page can be compressed by checking the compression ratio for the page. Memory
Occurs When the page compression compression ratio's greater than 50% is. Otherwise, the page is swapped out.
Only Pages that would be swapped out to Otherwise disk are Chosen as candidates for memory compression.
This Means ESXi will not proactively compress guest pages When host swapping is NOT necessary. In other words,
memory does not Affect workload compression performance is undercommitted When host memory.

En la pregunta indica claramente que asume que el ballooning es posible por lo tanto la respuesta E no debería tener sentido no creéis? además lo vuelve a remarcar en la pregunta, for a running virtual machine.

The answer D It could strain response that clearly seeks to know that the driver is installed with ballooning VMwareTools, but neither makes clear with the "Assuming That Balooning is possible".

The answer C es correcta ya que como se puede leer en el blog de Jose María González y su gente (Miguel Ángel Alonso and company) lo siguiente confirma que la respuesta C es correcta http://www.josemariagonzalez.es/2010/06/14/ballooning-vmkernel-swapping.html:

Una de la mejores configuraciones de este setting (Ballooning) es no configurar las reservas de memoria demasiado bajas, ya que de ser así, el VMkernel, y durante periodos de alta activada, podría forzar a hacer swapping a disco lo cual ralentizaria enormemente el rendimiento de tu servidor VMware ESX / ESXi.

Por lo tanto la respuesta que voy a poner si me aparece esta pregunta en el examen van a ser las siguientes respuestas aunque supongo que en el examen no aparecerá esta pregunta o al menos estas respuestas ya que son incongruentes.

C, and D are my answers and if there are more not listed as the above put that answer.

Please if anyone knows the answer to the comment in the post or send me an email to [Email protected]

Best regards.

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Posted by Certifications, VMware | 1 Comment »

The new Microsoft certifications - MCSE MCSA and returns

Posted by acts268 on September 3 2012rd

mcse

Microsoft is changing the format of the certificates once more. Changes announced yesterday entitled to Keynote, international conference and champagne!

The truth is that I do not like change, especially where it specifies that certifications expire 3 years.

Become famous acronyms MCSA and MCSE, but not with the original meaning, Microsoft Certified Systems Administrator and Microsoft Certified Systems Enginner. New acronyms are:

MCSA - Microsoft Certified Solution Associate MCSE - Microsoft Certified Solution Expert

The Microsoft Certified Master certification is also affected and becomes MCSM - Microsoft Certified Solutions Master.

Besides certifications are added for Developers on the same structure MCPD - Microsoft Certified Professional Developer. Megacrack read »

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Posted by Certifications, microsoft | No Comments »

Second Shot! for Microsoft Certifications

Posted by acts268 on August 31 2012st

second shot

Now has a second chance to become certified. What does this mean? Which until May 31 2013, it has an extra and free opportunity to take the exams in which you enroll. Designed to help train and get official certifications in Microsoft technologies that potentiate their development and professional prestige, Second Shot It is available for IT professionals, developers and students who may take the opportunity to pass exams directly related to the most important job positions in the industry. Whether as Manager databases, servers or technical support, a Microsoft certification is a guarantee for their professional development, which will help greatly both in performance and in the labor market.

To learn more about the different job roles and find specific guidance on the path that will help you get the skills needed for each job, visit the Career Portal for Students , or the Portal for professionals. To sign up for free on the Second Shot follow this link:

http://bsf01.com/Microsoft_Vouchers/SecondShot.aspx

More information: Megacrack read »

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Posted by Certifications, microsoft | No Comments »

Certifications Windows Server 2008

Posted by Xaus Xavier Nadal 9th on March 2008

How to get a certification in Windows Server 2008:

The MCSA and MCSE certificates disappear and are now called MCTS (Microsoft Certified Technology Specialist) and MCITP (Microsoft Certified IT Professional).

Actualmente existen 5 certificaciones para Windows Server 2008 enfocados a roles específicos de trabajo. Megacrack read »

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Posted by Certifications, Windows server 2008 | 4 Comments »

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