A model that is commonly used to describe networking functionalityis the Open Systems Interconnection (OSI) reference model, which segregates networkingfunctions into a series of ________ layers
a. Seven
b. Six
c. Five
d. Four
A.Each layer specifies protocols and interfaces that work together to provide all network communications, both within the local area network (LAN) and globally across the Internet.
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Which of the following statements is true?
a. Class Scanner provides the ability to reposition to the beginning of a file with method seek. b. Class Scanner provides the ability to reposition to the beginning of a file with method reposition. c. Class Scanner does not provide the ability to reposition to the beginning of the file. d. If it is necessary to read a sequential file again, the program can simply keep reading—when the end of the file is reached, the Scanner is automatically set to point back to the beginning of the file.
The Magic Wand options bar has a(n) ____ box that allows you to enter a value that determines the similarity or difference in the color of the selected pixels.
A. Tolerance B. Resolution C. Density D. Indexing