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You have a replicated cluster with 1 primary, 3 secondary, 1 arbiter. One of the secondary is hidden. What is the replication factor of this replicated cluster?
Suggested Answer: C
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36 comments · newest first
MA
Magda
10 months ago
Wait, how is it 4? I thought it was 3.
TE
Terrilyn
10 months ago
Totally agree, it's 4!
ST
Stephaine
10 months ago
Don't forget the arbiter counts too!
CL
Claudio
10 months ago
Yep, 4 makes sense with 1 primary and 3 secondaries.
ME
Meaghan
11 months ago
The replication factor is 4.
KA
Kandis
11 months ago
If I remember correctly, the replication factor should be the number of primaries plus secondaries, but I’m confused about the arbiter's role here.
KA
Kallie
11 months ago
I feel like the hidden secondary might not count towards the replication factor, but I can't recall exactly how that works.
SH
Sheridan
11 months ago
I remember a practice question where we calculated the replication factor, and I think it was something like the total number of nodes minus the arbiter.
LI
Ligia
12 months ago
I think the replication factor is related to the number of nodes, but I'm not sure how the hidden secondary affects it.
BR
Brianne
12 months ago
Wait, I think the hidden secondary does count. So the total number of copies is 1 primary, 4 secondaries, and 1 arbiter, which makes the replication factor 6.
TA
Tamra
12 months ago
Okay, I got this. The replication factor is the total number of copies of the data, including the primary and all secondaries. So with 1 primary, 3 secondaries, and 1 arbiter, the replication factor is 5.
AN
Anissa
1 year ago
Hmm, I'm not sure about that. Doesn't the hidden secondary still count towards the replication factor? Let me think this through again.
KY
Kyoko
1 year ago
I think the replication factor is 6, since there's 1 primary, 3 secondaries, and 1 arbiter. The hidden secondary doesn't count, right?
SH
Shaquana
1 year ago
Wait, why is there an arbiter if there are only 3 secondaries? Must be a trick question. I'll go with D just to be safe.
RE
Reta
1 year ago
Let's go with D then.
YO
Youlanda
1 year ago
Yeah, it must be a trick question with the arbiter included.
MO
Mollie
1 year ago
I agree, I'll go with D as well.
YU
Yuonne
1 year ago
I think the replication factor is 6.
AP
Apolonia
1 year ago
Hmm, I was going to say C, but D makes more sense. Gotta love these tricky replication questions!
DE
Delisa
1 year ago
Yeah, it can be tricky to keep track of all the different configurations in a replicated cluster.
KA
Kallie
1 year ago
I agree, D) 06 makes sense with 1 primary, 3 secondary, and 1 arbiter.
LE
Leana
1 year ago
I think the replication factor is D) 06.
CH
Chuck
1 year ago
Yeah, D) 06 makes sense with the hidden secondary included.
JU
Julian
1 year ago
I think the replication factor is D) 06.
KE
Kenneth
1 year ago
D definitely seems right. The hidden secondary doesn't count towards the replication factor, so it's 6 nodes in total.
BE
Beata
1 year ago
So, the replication factor for this cluster is indeed 6. The hidden secondary doesn't contribute to the replication factor count.
MI
Mi
1 year ago
Yes, that's correct. The replication factor is calculated based on the number of visible nodes in the cluster.
VA
Vallie
1 year ago
D definitely seems right. The hidden secondary doesn't count towards the replication factor, so it's 6 nodes in total.
JO
Joana
1 year ago
I agree with Solange, the hidden secondary and arbiter are not part of the replication factor, so it should be 4.
LI
Ligia
1 year ago
I think the answer is D. The replication factor is 6 since there's 1 primary, 3 secondary, and 1 arbiter.
IL
Ilene
1 year ago
You're welcome!
RO
Roxane
1 year ago
Oh, I see. Thanks for clarifying!
NI
Nida
1 year ago
No, the correct answer is B. The replication factor is 3 because only the secondaries count towards replication factor.
AL
Aleta
1 year ago
I think the answer is D. The replication factor is 6 since there's 1 primary, 3 secondary, and 1 arbiter.
SO
Solange
1 year ago
I think the answer is C) 04, because the hidden secondary and arbiter do not count towards the replication factor.
LI
Linette
1 year ago
The replication factor is 4, because we count the primary and the visible secondaries.