FINTECH FINAL QUESTIONS WITH DETAILED VERIFIED AND 100%
ACCURATE ANSWERS ALREADY GRADED A+ LATEST UPDATE!!!
Supervised Learning - (ANSWER)Uses a precise rule to predict outcome
Ex: Regression Random Forrest
(Predict stock returns)
Unsupervised Learning - (ANSWER)Uncovers relationships/commonalties/patterns between variables
without a model/structure
(What stocks are similar to each other)
Deep Learning - (ANSWER)Mimicking how the brain works, uses multi-layered neural network
(Detect investor sentiment using social media)
Ex; time series (nerual nets)
Fin-tech: - (ANSWER)Use of technology and analytics to lower frictions in financial servies
Hashing - (ANSWER)-One-way encryption
-Allows us to verify that the content of the message has not been altered, and comes from the right
sender
-a crypto system to tranform an text of any length into (almsot) irreversible fixed-length string of
numbers and letters
-Hashing is not random. Every time you input as plaintext the same text, the same hash is produced.
-websites dont keep passwords they keep hashes(they compare the hash of what you typed to the hash
they have in storage, if hacked he only sees the hash not the password)
Encyption - (ANSWER)Two-way function, (we encrypt with the purpose to decypt)
Technique to make sure that the message is not read by anyone else
True or false: Cryptographic hashing is NOT encryption - (ANSWER)True
, FINTECH FINAL QUESTIONS WITH DETAILED VERIFIED AND 100%
ACCURATE ANSWERS ALREADY GRADED A+ LATEST UPDATE!!!
Cyptography - (ANSWER)Science of transmitting messages and transactions securely against 3rd party
advisories, you do this with encypting and decypting them (Symetic and Asymetirc Keys)
Ideal Hasing function - (ANSWER)-Deterministic
-easy to compute but not decrypt
-collision resistant
-fast, but not too fast(or a brute force attack would be feasible)
Brute Force - (ANSWER)Trying all the possible ways to crack a code
Types of Hash Attacks - (ANSWER)Collision attack: means designing a method that finds two texts with
the same hash (any hash).•Pre-image attack: means designing a method that, given a specific target
hash, finds a text that generates the hash.
Pre-image is more difficult than collsion
Hashing is used to confirm ... - (ANSWER)that a file was not corrupted, and for message authentication,
ONE WAY it should be impossibe to retireve the plaintext from a hash
Types of Encyption Algotrims - (ANSWER)1.Symmetric Key Encryption: A common secret key is
exchanged between the sender and the receiver.
2.Asymmetric (Public) Key Encryption: Only the receiver has the key to decipher the ciphertext.
•RSA•Elliptic Curve Cryptography
Symmetric key algorithms are best used for: - (ANSWER)2 party transactions (like banks) but not in
networks (like blockchain)
Why?:
-How do you safely share a common key
ACCURATE ANSWERS ALREADY GRADED A+ LATEST UPDATE!!!
Supervised Learning - (ANSWER)Uses a precise rule to predict outcome
Ex: Regression Random Forrest
(Predict stock returns)
Unsupervised Learning - (ANSWER)Uncovers relationships/commonalties/patterns between variables
without a model/structure
(What stocks are similar to each other)
Deep Learning - (ANSWER)Mimicking how the brain works, uses multi-layered neural network
(Detect investor sentiment using social media)
Ex; time series (nerual nets)
Fin-tech: - (ANSWER)Use of technology and analytics to lower frictions in financial servies
Hashing - (ANSWER)-One-way encryption
-Allows us to verify that the content of the message has not been altered, and comes from the right
sender
-a crypto system to tranform an text of any length into (almsot) irreversible fixed-length string of
numbers and letters
-Hashing is not random. Every time you input as plaintext the same text, the same hash is produced.
-websites dont keep passwords they keep hashes(they compare the hash of what you typed to the hash
they have in storage, if hacked he only sees the hash not the password)
Encyption - (ANSWER)Two-way function, (we encrypt with the purpose to decypt)
Technique to make sure that the message is not read by anyone else
True or false: Cryptographic hashing is NOT encryption - (ANSWER)True
, FINTECH FINAL QUESTIONS WITH DETAILED VERIFIED AND 100%
ACCURATE ANSWERS ALREADY GRADED A+ LATEST UPDATE!!!
Cyptography - (ANSWER)Science of transmitting messages and transactions securely against 3rd party
advisories, you do this with encypting and decypting them (Symetic and Asymetirc Keys)
Ideal Hasing function - (ANSWER)-Deterministic
-easy to compute but not decrypt
-collision resistant
-fast, but not too fast(or a brute force attack would be feasible)
Brute Force - (ANSWER)Trying all the possible ways to crack a code
Types of Hash Attacks - (ANSWER)Collision attack: means designing a method that finds two texts with
the same hash (any hash).•Pre-image attack: means designing a method that, given a specific target
hash, finds a text that generates the hash.
Pre-image is more difficult than collsion
Hashing is used to confirm ... - (ANSWER)that a file was not corrupted, and for message authentication,
ONE WAY it should be impossibe to retireve the plaintext from a hash
Types of Encyption Algotrims - (ANSWER)1.Symmetric Key Encryption: A common secret key is
exchanged between the sender and the receiver.
2.Asymmetric (Public) Key Encryption: Only the receiver has the key to decipher the ciphertext.
•RSA•Elliptic Curve Cryptography
Symmetric key algorithms are best used for: - (ANSWER)2 party transactions (like banks) but not in
networks (like blockchain)
Why?:
-How do you safely share a common key
