MENU
Which of the following are good ways to get pseudo-random numbers for smart contracts?
Suggested Answer: A
Get Premium CBSP Questions
as Interactive Web-Based Practice Test or PDF
Real Exam Format
Detailed Explanations
Instant Access
Get Your Practice Test
42 comments · newest first
HA
Harley
11 months ago
Totally agree, private functions aren't reliable for this.
MA
Marshall
11 months ago
Wait, can we really trust block hashes for randomness?
LE
Leila
12 months ago
Private variables can be predictable, not a great idea.
JA
Jamal
12 months ago
I think external oracles are the best option.
DE
Derick
12 months ago
Block hashes are a common choice!
SY
Sylvia
1 year ago
I have a vague memory of block hashes being used in some examples, but I wonder if they are truly secure enough for smart contracts.
KR
Krissy
1 year ago
Private variables and functions seem too predictable for generating random numbers, but I can't recall the exact reasons why.
NI
Nickolas
1 year ago
I remember practicing a question about using external oracles for randomness, so I feel like option D could be a strong choice.
GU
Gussie
1 year ago
I think block hashes might be a good option for pseudo-random numbers, but I'm not entirely sure if they can be manipulated.
VE
Verlene
1 year ago
Wait, what's the difference between float before production and queue time? I'm not sure I fully understand how those fit into a routing operation. I'll have to guess on this one.
ST
Stefania
1 year ago
I'm a bit unsure about this one. The options seem pretty similar, but I'll go with proportionate since that seems to fit the legal requirements mentioned in the question.
SU
Sue
1 year ago
This seems like a straightforward question about improving a machine learning model. I'd start by looking at the performance metrics in Stackdriver and analyzing them in BigQuery to identify areas for improvement.
SH
Shalon
1 year ago
I'm a bit confused on this one. I'll have to review the material again to make sure I understand where the loadbalancing mode is specified.
FR
Frederica
1 year ago
Block hashes? Isn't that like using the weather to predict the stock market? I'll stick with the oracle, thanks.
LA
Lacresha
1 year ago
Block hashes may not be the best choice for smart contracts.
CL
Clorinda
1 year ago
Private variables and functions can also be good options.
JO
Joanna
1 year ago
I prefer using an external oracle for pseudo-random numbers.
KA
Karon
1 year ago
Block hashes can be unpredictable, like the weather.
AL
Alisha
1 year ago
Ooh, this is a tricky one. I'm going with B - private functions could be a sneaky way to generate pseudo-random numbers.
LE
Lettie
1 year ago
I would go with private functions or block hashes for generating pseudo-random numbers.
SH
Shawnta
1 year ago
Block hashes are also a good option for getting pseudo-random numbers.
LE
Leslie
1 year ago
I think private functions could work for generating pseudo-random numbers.
WI
Winfred
1 year ago
I was leaning towards A, but now I'm not so sure. Private variables might not be as random as we need.
PA
Paris
1 year ago
C) Block hashes
CA
Carrol
1 year ago
Block hashes are a good way to get pseudo-random numbers for smart contracts.
LA
Laila
1 year ago
D) External oracle
FR
Francesco
1 year ago
C) Block hashes
SH
Sharen
1 year ago
B) Private functions
KA
Karan
1 year ago
A) Private variables
HI
Hillary
1 year ago
D seems like the best option to me. Using an external oracle is a secure way to get random numbers.
KR
Kris
1 year ago
Private functions can help generate pseudo-random numbers within the smart contract.
BO
Bok
1 year ago
Block hashes can also be a good source of pseudo-random numbers.
RE
Regenia
1 year ago
I agree, using an external oracle adds an extra layer of security.
SA
Sang
2 years ago
I prefer using external oracle for pseudo-random numbers, it provides more flexibility.
CA
Carli
2 years ago
I agree with Roselle, block hashes are secure and unpredictable.
RO
Roselle
2 years ago
I think using block hashes is a good way to get pseudo-random numbers.
KA
Kati
2 years ago
I'm not sure about external oracle, it may introduce centralization risks.
AL
Albina
2 years ago
I think C is the correct answer. Block hashes can provide good pseudo-random numbers for smart contracts.
TI
Timothy
1 year ago
I think private functions can also be used to generate pseudo-random numbers.
JA
Jani
1 year ago
I agree, block hashes are a reliable source of pseudo-random numbers.
EV
Evangelina
2 years ago
I agree with Buddy, block hashes are secure and unpredictable.
BU
Buddy
2 years ago
I think block hashes are a good way to get pseudo-random numbers.