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Author Question: An entire information system is broken down into its main subsystems by using: A) high-level data ... (Read 103 times)

Capo

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on: Jul 7, 2018
An entire information system is broken down into its main subsystems by using:
 
  A) high-level data flow diagrams.
  B) low-level data flow diagrams.
  C) process specifications.
  D) structured diagrams.
  E) Gantt charts.

Question 2

Explain how two-factor authentication increases security.
 
  What will be an ideal response?
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1_Step_At_ATime

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Reply #1 on: Jul 7, 2018
Answer to Question 1

A

Answer to Question 2

Two-factor authentication increases security by validating users by a multistep process. To be authenticated, a user must provide two means of identification, one of which is typically a physical token, such as a smartcard or chip-enabled bank card, and the other of which is typically data, such as a password or PIN (personal identification number). Biometric data, such as fingerprints, iris prints, or voice prints, can also be used as one of the authenticating mechanisms. A common example of two-factor authentication is a bank card; the card itself is the physical item, and the PIN is the data that go with it.


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