__________ is when each plaintext element or group of elements is uniquely replaced by a corresponding ciphertext element or group of elements.

A) ?Substitution
?B) ?Diffusion ?
C) ?Streaming ?
D) ?Permutation


A) ?Substitution

Computer Science & Information Technology

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A pretest loop is easier to write and understand than a posttest loop with a selection structure.

Answer the following statement true (T) or false (F)

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When you enter the dir command at the PowerShell prompt, the column headings that are displayed are called which of the following?

A. object names B. property values C. object values D. property names

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The ____ state is seen only during the actual click on a link, so creating a style for this state is not usually critical.

A. a:clicked B. a:visited C. a:active D. a:hover

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Which of the following can provide a user with a cloud-based application that is integrated with a cloud-based virtual storage service and can be accessed through a web browser?

A. IaaS B. Community C. Hybrid D. SaaS

Computer Science & Information Technology