Welcome to ExamTopics
ExamTopics Logo
- Expert Verified, Online, Free.
Mail Us [email protected]
Menu

Unlimited Access

Get Unlimited Contributor Access to the all ExamTopics Exams!
Take advantage of PDF Files for 1000+ Exams along with community discussions and pass IT Certification Exams Easily.
Google Discussions

Exam Professional Cloud DevOps Engineer topic 1 question 15 discussion

Actual exam question from Google's Professional Cloud DevOps Engineer
Question #: 15
Topic #: 1
[All Professional Cloud DevOps Engineer Questions]

Your product is currently deployed in three Google Cloud Platform (GCP) zones with your users divided between the zones. You can fail over from one zone to another, but it causes a 10-minute service disruption for the affected users. You typically experience a database failure once per quarter and can detect it within five minutes. You are cataloging the reliability risks of a new real-time chat feature for your product. You catalog the following information for each risk:
* Mean Time to Detect (MTTD) in minutes
* Mean Time to Repair (MTTR) in minutes
* Mean Time Between Failure (MTBF) in days
* User Impact Percentage
The chat feature requires a new database system that takes twice as long to successfully fail over between zones. You want to account for the risk of the new database failing in one zone. What would be the values for the risk of database failover with the new system?

  • A. MTTD: 5 MTTR: 10 MTBF: 90 Impact: 33%
  • B. MTTD: 5 MTTR: 20 MTBF: 90 Impact: 33%
  • C. MTTD: 5 MTTR: 10 MTBF: 90 Impact: 50%
  • D. MTTD: 5 MTTR: 20 MTBF: 90 Impact: 50%
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by devopsbatch at June 2, 2021, 5:26 p.m.

Comments

Chosen Answer:
This is a voting comment (?) , you can switch to a simple comment.
Switch to a voting comment New
Submit Cancel
Charun
Highly Voted 2 years, 10 months ago
B 100%
upvoted 18 times
...
rinkeshgala1
Highly Voted 2 years, 11 months ago
B MTR will increase to 20
upvoted 11 times
...
alpha_canary
Most Recent 3 months, 2 weeks ago
Selected Answer: B
Pretty simple maths: MTTD stays 5 as no change in it MTTR doubles to 20 minutes because question says "a new database system that takes twice as long to successfully fail over between zones." MTBF stays the same i.e., once per quarter (90 days) Impact: 33% because if one zone fails, only users in that zone is affeted and we have users spread over 3 zones.
upvoted 3 times
...
jomonkp
5 months, 2 weeks ago
option B
upvoted 2 times
...
Cassim
11 months, 1 week ago
Selected Answer: B
Impact would be 33% since failure is one zone out of three zones (1/3)
upvoted 2 times
...
jaykumarjkd99
1 year, 3 months ago
B 100%
upvoted 1 times
...
JonathanSJ
1 year, 4 months ago
Selected Answer: B
The correct answer would be B. MTTD: 5 MTTR: 20 MTBF: 90 Impact: 33%.
upvoted 1 times
...
taqihurr
1 year, 4 months ago
Selected Answer: B
B 100%
upvoted 1 times
...
Greg123123
1 year, 4 months ago
I was struggling between B and D as I couldn't find any information that indicate the impact of users. After checking out the discussion here most of people say it's B because there are 3 zones. If this is the case, there is a typo in the question: "Your product is currently deployed in three Google Cloud Platform (GCP) zones with your users divided between "the"(three) zones". So it should be B.
upvoted 3 times
run4fun
11 months, 1 week ago
You are right. There is a typo in the question. Nowhere does it say three zones.
upvoted 1 times
...
...
floppino
1 year, 4 months ago
Selected Answer: B
Ans: B Exam passed and taken on 19/12/2022, 50/50 from this dump without buying the full access and looking for 'devops' word here: https://www.examtopics.com/discussions/google/1/
upvoted 1 times
...
DoodleDo
1 year, 5 months ago
Can someone give a explanation on why MTTR will be 20 mins?
upvoted 1 times
chelbsik
1 year, 5 months ago
Because "The chat feature requires a new database system that takes twice as long to successfully fail over between zones." which is 2x10min
upvoted 6 times
...
...
zellck
1 year, 6 months ago
Selected Answer: B
B is the answer.
upvoted 1 times
...
[Removed]
1 year, 9 months ago
Why there are so many questions using a wrong item as "correct answer" ? Where the value came from, so confuse :(
upvoted 4 times
leandrojpg
1 year, 5 months ago
You complained about the wrong item, but there was no response. This does not really help anyone who wants to learn, what is your response?
upvoted 1 times
...
...
GCP72
1 year, 9 months ago
Selected Answer: B
B is correct
upvoted 2 times
...
Bill831231
1 year, 10 months ago
not sure should be "B" or "D", since description like "between Zones" and "fail from one to another" indicate that there are only 2 zones
upvoted 1 times
...
Ananda
2 years ago
Selected Answer: B
Submit B in exam
upvoted 1 times
...
PhilipKoku
2 years, 3 months ago
Selected Answer: B
B is the answer: MTTD: 5 minutes MTTR: 20 minutes (twice the time) Impact: 33% (1 of 3 zones impacted)
upvoted 8 times
AzureDP900
1 year, 6 months ago
B is right
upvoted 1 times
...
...
Load full discussion...

Get IT Certification

Unlock free, top-quality video courses on ExamTopics with a simple registration. Elevate your learning journey with our expertly curated content. Register now to access a diverse range of educational resources designed for your success. Start learning today with ExamTopics!

Start Learning for free
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.

Upvoting a comment with a selected answer will also increase the vote count towards that answer by one. So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.

SaveCancel