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3. Why does the domain name space is limited to have only 128 levels (including root)? Hint 01: Refer to the RFC 1035 Hint 02: Octet means a set of 8 bits => 1 byte => 1 byte represents 1 ASCII Character

3. Why does the domain name space is limited to have only 128 levels (including root)? Hint 01: Refer to the RFC 1035 Hint 02: Octet means a set of 8 bits => 1 byte => 1 byte represents 1 ASCII Character

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Explain the following observations related to the application layer. Use diagrams and calculations as needed. Mention the references (if any) at the end.

Can I have a detailed explanation for Question 3 according to above instructions?

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3. Why does the domain name space is limited to have only 128 levels (including root)? Hint 01: Refer to the RFC 1035 Hint 02: Octet means a set of 8 bits => 1 byte =>1 byte represents 1 ASCII Character G REC 1035 - Domain names - imp x + → C i tools.ietf.org/html/rfc1035 TTL positive values of a signed 32 bit number. UDP messages 512 octets or less 3. DOMAIN NAME SPACE AND RR DEFINITIONS 3.1. Name space definitions Domain names in messages are expressed in terms of o sequence of labels. Each label is represented as a one octet length fleld followed by that number of octets. since every domain name ends with the null label of the root, a domain name is terminated by a length byte of zero. high order two bits of every length octet must be zero, and the renaining six bits of the length field limit the label to 63 octets or less. The To simplify implementotions, the totol length of a domain name (i.e., label octets and label length octets) is restricted to 255 actets or less. 4. Why do companies/institutions maintain their own DNS servers?
Transcribed Image Text:3. Why does the domain name space is limited to have only 128 levels (including root)? Hint 01: Refer to the RFC 1035 Hint 02: Octet means a set of 8 bits => 1 byte =>1 byte represents 1 ASCII Character G REC 1035 - Domain names - imp x + → C i tools.ietf.org/html/rfc1035 TTL positive values of a signed 32 bit number. UDP messages 512 octets or less 3. DOMAIN NAME SPACE AND RR DEFINITIONS 3.1. Name space definitions Domain names in messages are expressed in terms of o sequence of labels. Each label is represented as a one octet length fleld followed by that number of octets. since every domain name ends with the null label of the root, a domain name is terminated by a length byte of zero. high order two bits of every length octet must be zero, and the renaining six bits of the length field limit the label to 63 octets or less. The To simplify implementotions, the totol length of a domain name (i.e., label octets and label length octets) is restricted to 255 actets or less. 4. Why do companies/institutions maintain their own DNS servers?
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