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
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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