# Our Website got Attacked Today!

At about 13:00 UTC today all our web-servers crashed due to a Distributed Denial of Service (DDOS) attack on the website. This attack (by an unknown group of hackers) caused the maximum allowed users to spike beyond what the system could handle. All three servers crashed and the message "Service Unavailable" was displayed.

We contacted our hosting company via phone right away and worked with them to restore the service. Now it was determined that it wasn't just the webservers that went down but unfortunately, the crash snowballed and took down the database servers as well.

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# TOPIC: QuestionPM Formulas

## PM Formulas 1 year 10 months ago #7295

 Damien Topic Author Visitor Hi I purchased the 105 Formula Questions. I'm looking to clarify the answer to question No.73. The answer given is A) 486,300. When I calculate using the correct formulas I get an answer of CPI = 240,000 / 253,700 = 0.9459. Is this ratio that added to the nearest decimal point, i.e. 0.95 ?? Using the answers ratio of 0.946 EAC = 700,000 / 0.946 = 739,957.716 • ETC = EAC – AC = 739,958 – 253,700 = 486,258 If you round off 0.946 to 0.95 you get EAC = 700,000 / 0.95 = 736,842,10 • ETC = EAC – AC = 736,842 – 253,700 = 483,142 Regards Damien Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.

## PM Formulas 1 year 10 months ago #7297

 Yasir Mehmood Offline Junior Boarder Posts: 38 Karma: 2 Thank you received: 11 Hi Damien, I didn't have the question so I took the long route but basically if you use CPI with more decimal places the answer works out. As you noticed rounding the CPI up even one decimal place makes a fairly large difference in the final answer. You mentioned CPI = 240,000 / 253.700 so that tells me the question gives you the EV as 240,000 and AC as 253,700 You mentioned EAC = 700,000 / CPI which tells me that the question gives you BAC as 700,000 (I now know I didn't need to do that ) CPI = 240,000 / 253,700 = 0.945945945 EAC = BAC / CPI => 700,000 / 0.945945945 => 740,000.00074 ETC = EAC - AC => 740,000.00074 - 253,700 => 486,300.00074 => 486,300 Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable. Yasir Mehmood, MBA, PMP, PMI-ACP, CSM, CSP, CLP (LeSS), CSPO Community Moderator

## PM Formulas 1 year 10 months ago #7304

 Aishah Ismail Offline Fresh Boarder Posts: 1 Thank you received: 0 pls advice where you gotten the 105 formula qns? I would like to practice. kindly email me This email address is being protected from spambots. You need JavaScript enabled to view it. Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.

## PM Formulas 1 year 10 months ago #7307

 Yasir Mehmood Offline Junior Boarder Posts: 38 Karma: 2 Thank you received: 11 Hi Aishah, You can purchase the formulas and the 105 sample questions here. https://www.project-management-prepcast.com/pmp-exam/the-pm-formulas Your e-mail address will never be displayed on the site. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable. The following user(s) said Thank You: Cornelius Fichtner Yasir Mehmood, MBA, PMP, PMI-ACP, CSM, CSP, CLP (LeSS), CSPO Community Moderator
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