MENU
Which of the following is true of the mechanics of replication in MongoDB? Check all that apply.
Suggested Answer: C
Get Premium C100DBA Questions
as Interactive Web-Based Practice Test or PDF
Real Exam Format
Detailed Explanations
Instant Access
Get Your Practice Test
35 comments · newest first
DE
Devora
10 months ago
Yeah, I've seen A in action, it works as described!
LY
Lynda
11 months ago
Wait, is it really a capped collection for the oplog?
AL
Albert
11 months ago
B seems off, clients don't always read from the nearest.
EL
Ellen
11 months ago
I agree with C, the oplog is definitely a thing!
MA
Martha
11 months ago
A is true, members can replicate from each other.
CO
Coral
12 months ago
I practiced a similar question about replica sets, and I think A and C are the ones I would go with, but I'm still a bit confused about B.
AN
Andrew
12 months ago
I definitely remember that operations on the primary are logged in the oplog, so I think option C is definitely true.
LI
Lindsay
12 months ago
I feel like option B might be true, but I can't recall if clients always read from the nearest member or if there's a setting for that.
DA
Daisy
1 year ago
I think option A is correct because I remember reading about how replica sets work in MongoDB, but I'm not entirely sure if it applies to all configurations.
AM
Amira
1 year ago
Replication can be a tricky topic, but I've practiced a lot of questions like this. I'm going to read through the options carefully and eliminate any that don't sound right.
AJ
Aja
1 year ago
Okay, let me break this down step-by-step. I know the oplog is important for replication, so that's a good place to start.
TA
Tamera
1 year ago
Hmm, I'm not totally sure about the mechanics of replication in MongoDB. I'll have to think this through carefully.
RE
Regenia
1 year ago
This question seems straightforward, I'm pretty confident I can handle it.
SA
Sang
1 year ago
I remember learning about replica sets in class, so I think I have a good understanding of how replication works in MongoDB. I'll just double-check my notes to be sure.
CH
Chauncey
1 year ago
Hmm, I'm a little unsure about this. I know the market-based method looks at external factors, but I can't quite remember if it's primarily about the nature and level of work or the internal value. I'll have to think this through carefully.
SH
Shalon
2 years ago
I'm just glad the question didn't ask about the 'mongooprah' command. That one always trips me up!
BL
Blythe
2 years ago
Option B sounds right to me. Isn't that how MongoDB is designed to work, to read from the nearest member by default?
KE
Kenneth
2 years ago
Hmm, I don't know about option B. Isn't that just a default setting that can be changed? Maybe it's not always true.
BA
Bambi
2 years ago
I think it can be changed, so it may not always be true.
GL
Gladys
2 years ago
Option B is true, clients do read from the nearest member by default.
VI
Vivan
2 years ago
I think A and C are both true. The replica set members can replicate from each other, and the oplog is where the primary stores the operations.
CL
Clare
2 years ago
I'm pretty sure option C is correct. The oplog is where the primary records all operations, right?
IN
In
2 years ago
So, the correct options are A and C. Good job on identifying them!
SH
Shad
2 years ago
Option C is definitely true. The oplog is essential for replication in MongoDB.
JE
Jestine
2 years ago
You're right. Option A is also correct. Members can replicate data from any other data-bearing member by default.
JA
Jaime
2 years ago
That's right. The oplog is a capped collection that stores all the operations on the primary.
ME
Melissa
2 years ago
Yes, you are correct. Option C is true. The oplog is where all operations on the primary are recorded.
JE
Jenise
2 years ago
That's good to know. I think option A is also true. Members of a replica set may replicate data from any other data-bearing member.
RE
Refugia
2 years ago
Option C is definitely true. The oplog is essential for replication in MongoDB.
MO
Mollie
2 years ago
Yes, you are correct. Option C is true. The oplog is where the primary records all operations.
OL
Olen
2 years ago
That's right. The oplog is a capped collection that stores all the operations on the primary.
ME
Meghan
2 years ago
Yes, you are correct. Option C is true. The oplog is where the primary records all operations.
ME
Mendy
2 years ago
I'm not sure about B), but I think A) and C) are definitely true based on my understanding of MongoDB replication.
PA
Paulina
2 years ago
I agree with A), but I also think C) is true because operations on the primary are recorded in the oplog.
AR
Arthur
2 years ago
I think A) is true because members can replicate data from any other data-bearing member.