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Which of the following index would be optimum for the query?
Select all valid. db.test.find( { a : 5, c : 2 })
Suggested Answer: B, C
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14 comments · newest first
MA
Marva
11 months ago
Is D really a valid option? Seems like overkill to me.
NO
Noah
12 months ago
I agree with C, it's the simplest and most effective.
RO
Roxane
12 months ago
Wait, why would anyone pick A? That doesn't make sense.
PE
Pete
12 months ago
I think B could work too, but not as efficiently.
FE
Felicitas
1 year ago
Option C is definitely the best choice!
MA
Mari
1 year ago
I’m leaning towards C as well, but I wonder if A could be valid since it starts with c. I need to double-check that.
AL
Allene
1 year ago
I practiced a similar question before, and I feel like B might be overkill with all those extra fields.
PR
Precious
1 year ago
I'm not entirely sure, but I remember something about the order of fields in compound indexes being important. Maybe A could work too?
JO
Josefa
1 year ago
I think option C is definitely a good choice since it has both fields a and c in the index.
AL
Alease
1 year ago
Okay, the question is asking about the type of VPN implementation, and the options mention IKEv1 cluster, IKEv2 backup gateway, IKEv2 load balancer, and IKEv2 reconnect. I'll need to think through the characteristics of each one to determine which best matches the diagram.
GR
Gracie
1 year ago
Hmm, I'm a bit unsure about this one. The scenario seems clear, but I'm not sure which of the diagrams best represents the door open/close process. I'll need to think this through step-by-step.
EL
Elenor
1 year ago
I'm leaning towards A as well. Giving the tester some structure and objectives, but still allowing for exploration, seems like a good balance for this type of testing approach.
MA
Mari
1 year ago
I'm not too familiar with BIDIR-PIM, MP-BGP, or MSDP, so I'll need to eliminate those options and focus on understanding spine headend replication.
NO
Noah
1 year ago
This seems like a standard EFP calculation problem. I'll start by writing out the formula and plugging in the given values. As long as I don't make any silly mistakes, I should be able to arrive at the correct answer.