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Eccouncil 212-81 Exam - Topic 5 Question 5 Discussion

Ahlen is using a set of pre-calculated hashes to attempt to derive the passwords from a Windows SAM file. What is a set of pre-calculated hashes used to derive a hashed password called?
B) Rainbow table
A) Hash matrix
C) Password table
D) Hash table

Eccouncil 212-81 Exam - Topic 5 Question 5 Discussion

Actual exam question for Eccouncil's 212-81 exam
Question #: 5
Topic #: 5
[All 212-81 Questions]

Ahlen is using a set of pre-calculated hashes to attempt to derive the passwords from a Windows SAM file. What is a set of pre-calculated hashes used to derive a hashed password called?

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Suggested Answer: B

Rainbow table

https://en.wikipedia.org/wiki/Rainbow_table

A rainbow table is a precomputed table for caching the output of cryptographic hash functions, usually for cracking password hashes. Tables are usually used in recovering a key derivation function (or credit card numbers, etc.) up to a certain length consisting of a limited set of characters. It is a practical example of a space--time tradeoff, using less computer processing time and more storage than a brute-force attack which calculates a hash on every attempt, but more processing time and less storage than a simple key derivation function with one entry per hash. Use of a key derivation that employs a salt makes this attack infeasible.


by Daniel at Aug 04, 2022, 01:57 AM

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Andra
10 months ago
Wait, are rainbow tables still relevant?
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Candra
10 months ago
Rainbow tables are super effective for this!
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Theron
10 months ago
Nope, it's not a password table.
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Catalina
10 months ago
I thought it was a hash table?
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Tambra
11 months ago
It's definitely a rainbow table!
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Justine
11 months ago
I recall something about pre-calculated hashes, and "Rainbow table" seems to fit, but I hope I’m not mixing it up with another term!
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Mitsue
11 months ago
I'm a bit confused; I thought "Hash table" was related to this, but now I'm leaning towards "Rainbow table" since it sounds more familiar.
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Marya
11 months ago
I remember practicing a question about password cracking methods, and "Rainbow table" definitely came up as a key concept.
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Helene
11 months ago
I think the answer might be "Rainbow table," but I'm not entirely sure if that's the exact term they used in class.
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Cyndy
11 months ago
This looks like a straightforward question about the different types of product inspections. I'll carefully read through the options and select the 3 correct answers.
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Brandon
11 months ago
I vaguely recall a question like this from our practice exams. "Service analyst" sounds familiar, but it could also be "service custodian."
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Sherita
11 months ago
Wait, I'm a bit confused. I thought smart grids had more than just three layers. I'll have to review my notes to make sure I understand the architecture properly before answering this.
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