Abstract Syntax Notation One Asn1 — Test 1

Correct Answer: B. B. Abstract syntax notation one
Explanation: ASN.1 stands for Abstract Syntax Notation One. ASN.1 in computer networking is a standard used for defining data structures that are sent and received in a network.

Correct Answer: C. C. Itu-t, iso
Explanation: ASN.1 is a standard language used for describing messages sent and received in a network. It is a joint standard developed by International Telecommunication Union (ITU-T) and International Organization for Standardization (ISO).

Correct Answer: B. B. It represents the set of rules for communicating information between systems
Explanation: The transfer syntax represents the set of rules for communicating information between systems. Whereas the Abstract Syntax is a set of rules used to specify data types and structures for the storage of information.

Correct Answer: A. A. True
Explanation: ASN.1 is based on Backus system. It uses formal syntax language and grammar of Backus-Naur Form. Backus-Naur Form is a context-free grammar form.

Correct Answer: C. C. Assignment
Explanation: ASN.1 uses several symbols and primitive data types including keywords. There is a list of symbols used but the symbol ‘::=’ here stands for ‘Assignment’.

Correct Answer: D. D. Module
Explanation: ASN.1 is a standard language used for describing messages sent and received in a network. ASN.1 uses several symbols and primitive data types including keywords. Thus we can group similar assignments to form a Module.

Correct Answer: A. A. Specified list of integers
Explanation: The universal class is the most commonly used class. Data types belonging to the universal class are application-independent. ENUMERATED is an example of universal class that is used to mean a specified list of Integers.

Correct Answer: B. B. False
Explanation: The abstract syntax is defined the set of rules used to specify data types and structures for the storage of information. The abstract syntax is applicable to the information model whereas Transfer syntax is applicable to communication model.

Correct Answer: A. A. Definitions, begin, end
Explanation: The terms DEFINITIONS, BEGIN and END are primitives and are called keywords in ASN.1. They are built-in expressions and have special meaning. GET, GETNEXT, SET, GETBULK, GETREQUEST and TRAP are commands used in SNMP.

Correct Answer: D. D. Bit error rate(ber)
Explanation: The algorithm used to convert ASN.1 syntax to machine-readable code is defined in ISO 8825/X.209 standards. It is usually called Basic Encoding Rules (BER).