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You wish to access the web page "www.discord.com". Since you are visiting it for the first time, the IP address is not cached in the local DNS server. By tracing, it can be seen that it required a total of 3 DNS server visits from the local DNS server before the IP address was delivered to your PC. Furthermore, the trace shows that each RTT consumes 55 ms on average. Finally after getting the IP address, you are able to access the website now maintaining an average RTT of 126 ms and a persistent connection without pipelining. Given, the website containts a total of 18 object(s), each object requiring 439 ms to be transferred. ANSWER IN millisecond. (a) What's the total RTT for resolving the IP address? (b) What's the total RTT for fetching all the objects? (excluding DNS RTT) (c) What's the total response time to get all the objects excluding the DNS operations? (include the RTTS involved in HTTP, so exclude the RTT involved in DNS operation)

You wish to access the web page "www.discord.com". Since you are visiting it for the first time, the IP address is not cached in the local DNS server. By tracing, it can be seen that it required a total of 3 DNS server visits from the local DNS server before the IP address was delivered to your PC. Furthermore, the trace shows that each RTT consumes 55 ms on average. Finally after getting the IP address, you are able to access the website now maintaining an average RTT of 126 ms and a persistent connection without pipelining. Given, the website containts a total of 18 object(s), each object requiring 439 ms to be transferred. ANSWER IN millisecond. (a) What's the total RTT for resolving the IP address? (b) What's the total RTT for fetching all the objects? (excluding DNS RTT) (c) What's the total response time to get all the objects excluding the DNS operations? (include the RTTS involved in HTTP, so exclude the RTT involved in DNS operation)

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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You wish to access the web page "www.discord.com". Since you are visiting it for the first time, the IP address is not cached in the local DNS server. By tracing, it can be seen that it required a total of 3 DNS server visits from the local DNS server before the IP address was delivered to your PC. Furthermore, the trace shows that each RTT consumes 55 ms on average. Finally after getting the IP address, you are able to access the website now maintaining an average RTT of 126 ms and a persistent connection without pipelining. Given, the website containts a total of 18 object(s), each object requiring 439 ms to be transferred. ANSWER IN millisecond. (a) What's the total RTT for resolving the IP address? (b) What's the total RTT for fetching all the objects? (excluding DNS RTT) (c) What's the total response time to get all the objects excluding the DNS operations? (include the RTTS involved in HTTP, so exclude the RTT involved in DNS operation)
Transcribed Image Text:You wish to access the web page "www.discord.com". Since you are visiting it for the first time, the IP address is not cached in the local DNS server. By tracing, it can be seen that it required a total of 3 DNS server visits from the local DNS server before the IP address was delivered to your PC. Furthermore, the trace shows that each RTT consumes 55 ms on average. Finally after getting the IP address, you are able to access the website now maintaining an average RTT of 126 ms and a persistent connection without pipelining. Given, the website containts a total of 18 object(s), each object requiring 439 ms to be transferred. ANSWER IN millisecond. (a) What's the total RTT for resolving the IP address? (b) What's the total RTT for fetching all the objects? (excluding DNS RTT) (c) What's the total response time to get all the objects excluding the DNS operations? (include the RTTS involved in HTTP, so exclude the RTT involved in DNS operation)
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