Because HTTP is stateless, if client requests an identical web URL it previously requested within the last 1 second, th Return an error code of 594, "Message previously delivered" Wait up to an additional 10 seconds to possible more messages. Resend the message. Ignore the message, because the HTTP protocol allows for ignoring duplicate messages in a small time window. 0000 ЕО000 FTP is an out-of-band protcol because: It uses a different channel band than WiFi It uses a single socket to send both commands and data The is a band-gap in the protocol because sometimes packets have missing header information It uses one socket to send commands, and a second socket to send data

Because HTTP is stateless, if client requests an identical web URL it previously requested within the last 1 second, th Return an error code of 594, "Message previously delivered" Wait up to an additional 10 seconds to possible more messages. Resend the message. Ignore the message, because the HTTP protocol allows for ignoring duplicate messages in a small time window. 0000 ЕО000 FTP is an out-of-band protcol because: It uses a different channel band than WiFi It uses a single socket to send both commands and data The is a band-gap in the protocol because sometimes packets have missing header information It uses one socket to send commands, and a second socket to send data

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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Concept explainers

Network Protocols

A network protocol is a set of rules that govern how data is exchanged between the devices in a network. Network protocols enable communication between devices that are located in different parts of the world. Consequently, they are critical in today's digital communications.

Question

Because HTTP is stateless, if client requests an identical web URL it previously requested within the last 1 second, the server will:
Return an error code of 594, "Message previously delivered"
Wait up to an additional 10 seconds to possible more messages.
Resend the message.
Ignore the message, because the HTTP protocol allows for ignoring duplicate messages in a small time window
000 Ё0000
FTP is an out-of-band protcol because:
It uses a different channel band than WiFi
It uses a single socket to send both commands and data
The is a band-gap in the protocol because sometimes packets have missing header information
It uses one socket to send commands, and a second socket to send data

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