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What allows users to update channels, or invoke new Smart Contracts?
Suggested Answer: C
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In Hyperledger Fabric, the peer CLI (Command Line Interface) tool is used to update channels or invoke new smart contracts. This utility allows users to perform various administrative tasks on the network, such as updating the ledger, changing endorsement policies, and managing chaincode installations and instantiations .
40 comments · newest first
CA
Carmen
11 months ago
Not sure about that, sounds too simple.
PA
Patti
11 months ago
Private data collections are key for updates.
GO
Golda
12 months ago
Wait, CouchDB can do that? Didn't know!
ZA
Zana
12 months ago
Nah, it's all about endorsement policies!
RE
Rebbecca
1 year ago
I think it's definitely the peer CLI.
SC
Scarlet
1 year ago
CouchDB seems like it could be relevant, but I don't remember it being directly tied to invoking new Smart Contracts.
TR
Trinidad
1 year ago
Endorsement policies sound familiar, but I thought they were more about transaction validation rather than updating channels.
DU
Dusti
1 year ago
I feel like private data collections could be the answer, but I can't recall the specifics about how they relate to updating channels.
CI
Ciara
1 year ago
I think it might be the peer CLI, but I'm not entirely sure. I remember it being mentioned in a similar practice question.
VE
Vernell
1 year ago
I think the key here is understanding the different components of Hyperledger Fabric and how they interact. The peer CLI is definitely the tool for managing the network, so I'm leaning towards that as the answer.
CA
Carole
1 year ago
The private data collections feature seems like it could be relevant here, since that's how you can restrict access to certain smart contract functions. But I'm not totally sure if that's the right answer.
BI
Billy
1 year ago
I'm a bit confused on this one. Is it the endorsement policies that control who can make changes to the network? Or is that a different part of the Hyperledger Fabric architecture?
MO
Mozell
1 year ago
I'm pretty sure it's the peer CLI that allows users to update channels and invoke new smart contracts. That's the tool we use for those kinds of admin tasks, right?
MA
Mary
1 year ago
Hmm, this one seems tricky. I'll need to think it through carefully.
TO
Tom
1 year ago
I'm confident that option D is the correct answer. Exploratory testing is crucial when you don't have a full understanding of the requirements.
JA
Janella
1 year ago
Okay, I've got this. The key is to focus on the Layer 2 aspect of the question. DSCP, PREC, and ToS are Layer 3 fields, so they're not relevant here. Dot1p and Q-in-Q are Layer 2 specific, so those are the ones I'll select.
BO
Bok
2 years ago
The peer CLI is the way to go. It's like the Swiss Army knife of Hyperledger Fabric.
AM
Amira
2 years ago
D) Endorsement policies
XU
Xuan
2 years ago
C) The peer CLI
RO
Rosenda
2 years ago
The peer CLI is the way to go. It's like the Swiss Army knife of Hyperledger Fabric.
MA
Mammie
2 years ago
C) The peer CLI
ME
Mertie
2 years ago
B) Private data collections
GA
Gail
2 years ago
A) CouchDB
JO
Jolanda
2 years ago
I believe it's a combination of C) The peer CLI and D) Endorsement policies, as both are essential for updating channels and invoking Smart Contracts.
FE
Felix
2 years ago
I'm not sure, but I think it could also be D) Endorsement policies, as they determine who can update the blockchain.
ED
Eden
2 years ago
CouchDB? More like CrouchDB, am I right? Ha! Software humor, folks.
FR
Frederick
2 years ago
CouchDB? More like CrouchDB, am I right? Ha! Software humor, folks.
LA
Laquita
2 years ago
B) Private data collections
FR
France
2 years ago
A) CouchDB
JO
Joni
2 years ago
Private data collections? Sounds like a way to keep secrets from the rest of the network. Count me in!
GL
Glory
2 years ago
Endorsement policies are the way to update channels and contracts. Gotta get that sign-off, you know?
RO
Rozella
2 years ago
D) Endorsement policies
CA
Carman
2 years ago
C) The peer CLI
KI
Kirby
2 years ago
B) Private data collections
ME
Meghann
2 years ago
A) CouchDB
AL
Alaine
2 years ago
I agree with Gerry, because the peer CLI allows users to interact with the blockchain network.
GE
Gerry
2 years ago
I think the answer is C) The peer CLI.
ME
Merlyn
2 years ago
The peer CLI is definitely the way to go. Who needs a fancy database when you've got a good old command line?
MO
Moon
2 years ago
I agree, it's much easier to update channels and invoke Smart Contracts using the command line.
FE
Felicitas
2 years ago
The peer CLI is definitely the way to go.