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How does the passive member of a High Availability (HA) pair receive its database updates?
Suggested Answer: C
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In an HA pair, the passive node stays synchronized with the active node to ensure seamless failover. This synchronization uses bloxSync, a proprietary Infoblox protocol that securely transfers database updates (e.g., DNS records, DHCP leases) between the HA pair members over an SSL-encrypted connection. The active node, being the operational member, directly provides these updates to the passive node. The Grid Master handles Grid-wide sync, but within an HA pair, the active node is the source. Options A and B misrepresent the mechanism (it's not a traditional VPN), and Option D incorrectly attributes the sync to the Grid Master. This is a critical HA troubleshooting topic in the INE course.
38 comments · newest first
DI
Dierdre
10 months ago
Yeah, bloxSync is the way to go for HA pairs.
DO
Dorothy
10 months ago
I thought it was from the Grid Master, not the Active node.
WI
William
10 months ago
It's definitely bloxSync from the Active node!
BE
Belen
10 months ago
Agreed, the Active node handles the updates for the passive member.
HA
Haydee
10 months ago
Wait, are we sure about that? Sounds a bit off.
IN
Inocencia
11 months ago
I’m leaning towards option C, but I have a nagging feeling that it could also be related to the Grid Master. This is confusing!
CA
Carline
11 months ago
I feel like the Grid Master plays a role in managing updates, but I can't recall if it's the one sending them to the passive member.
EM
Emmett
11 months ago
I remember practicing a question about HA pairs, and I think it mentioned the Active node sending updates directly. Could it be option C?
TE
Teri
11 months ago
I think the passive member gets updates through some kind of sync process, but I'm not sure if it's bloxSync or something else.
YO
Yong
12 months ago
This seems like a straightforward networking question. The passive node needs to stay in sync with the active node, so it makes sense that the updates would come directly from the active node using bloxSync. I'll go with option C.
EI
Eileen
12 months ago
Hmm, I'm a little confused on the difference between SSL VPN and bloxSync. I'll have to review my notes to make sure I understand the correct mechanism for how the passive node gets its updates. Maybe I'll eliminate the SSL VPN options first.
LE
Leanora
12 months ago
Okay, I remember learning about this in class. The passive node receives the database updates via bloxSync, but it's coming from the Active node, not the Grid Master. I'm confident that C is the right answer here.
VE
Veronika
1 year ago
I'm a bit unsure about this one. Is the passive node getting the updates directly from the active node, or is it going through the Grid Master? I'll have to think this through carefully.
EM
Emmanuel
1 year ago
Hmm, this seems like a pretty straightforward question about how the passive node in an HA pair receives database updates. I think I'll go with option C - bloxSync from the Active node.
LO
Loren
1 year ago
Hmm, I'm going with D) bloxSync from the Grid Master. Seems like the most reliable option, unless the Grid Master is running on a hamster wheel.
DO
Donette
1 year ago
Yeah, I think so too. It's important for the passive member to stay updated.
EU
Eura
1 year ago
I agree, D) bloxSync from the Grid Master sounds like the best choice.
MA
Ma
1 year ago
C) bloxSync from the Active node is the way to go. Quick and efficient, like a well-oiled HA machine!
DO
Doug
1 year ago
D) bloxSync from the Grid Master
DO
Dortha
1 year ago
C) bloxSync from the Active node
JO
Joesph
1 year ago
B) SSL VPN from the Grid Master
LY
Lynsey
1 year ago
A) SSL VPN from the Active node
GO
Goldie
1 year ago
I think it could be either bloxSync from the Active node or SSL VPN from the Grid Master, depending on the configuration.
LA
Lacey
1 year ago
A) SSL VPN from the Active node? Really? I thought this was a High Availability thing, not a low-availability one.
PI
Pilar
1 year ago
Yes, that's correct. The passive member gets updates through bloxSync from the Active node.
LE
Lezlie
1 year ago
No, it actually receives database updates through bloxSync from the Active node.
JA
Jaclyn
1 year ago
I agree with Frederick, bloxSync from the Active node makes more sense for database updates.
OL
Olene
1 year ago
I believe it's through SSL VPN from the Grid Master.
LA
Lai
1 year ago
B) SSL VPN from the Grid Master seems like the way to go. Gotta keep that data secure, am I right?
SV
Svetlana
1 year ago
C) bloxSync from the Active node
SH
Shantay
1 year ago
B) SSL VPN from the Grid Master
AR
Aretha
1 year ago
A) SSL VPN from the Active node
ST
Stephane
1 year ago
D) bloxSync from the Grid Master sounds right. Wouldn't want to overload the Active node, you know?
DO
Dorethea
1 year ago
I think it's C) bloxSync from the Active node. That makes the most sense to me.
HE
Herminia
1 year ago
I believe it's A) SSL VPN from the Active node, but I could be mistaken.
LE
Lemuel
1 year ago
I think it might be D) bloxSync from the Grid Master, but I'm not entirely sure.
MA
Mable
1 year ago
I agree, bloxSync from the Active node sounds like the correct option.
FR
Frederick
1 year ago
I think the passive member receives updates through bloxSync from the Active node.