1)  Which of the following would be Application Layer protocol(s)?: * A) DNS B) HTTP C) SMTP D) All of the above   2) All of the following are registered protocols that can be used in a URL EXCEPT which one?:  A) mailto: B) wifi: C) ftp: D) file 3) A web server refuses port 80 but has open port 443. Which one is a valid URL?: *  A) ftp://server.com/pictures.txt B) http://443@server.com/pictures.txt C) http://server.com:80/pictures.txt D) https://server.com/pictures.txt

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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1)  Which of the following would be Application Layer protocol(s)?: * A) DNS

B) HTTP

C) SMTP

D) All of the above

 

2) All of the following are registered protocols that can be used in a URL EXCEPT which one?: 

A) mailto:

B) wifi:

C) ftp:

D) file

3) A web server refuses port 80 but has open port 443. Which one is a valid URL?: * 

A) ftp://server.com/pictures.txt

B) http://443@server.com/pictures.txt

C) http://server.com:80/pictures.txt

D) https://server.com/pictures.txt

 

 

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