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Which two of the following describe ASN.1 (Abstract Syntax
Notation One)?
A. It is an abstract routing protocol that is not used very
often.
B. It is an OSI language for describing data types
independent of particular computer structures and
representation techniques.
C. Consists of only one basic routing algorithm.
D. Uses BER (Basic Encoding Rules).
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Answer: B and D
ASN.1 (Abstract Syntax Notation One) is an OSI language for
describing data types independent of particular computer
structures and representation techniques. BER (Basic
Encoding Rules) are rules for encoding data units described
in the ISO ASN.1 standard.
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CCNA 
