2.3-4 Comparing and contrasting HTTP and SMTP (3). Which of the following characteristics apply to both HTTP and SMTP? Note: check one or more ofthe characteristics below.□ Operates mostly as a "client push" protocol.O Uses a blank line (CRLF) to indicate end of request header.Uses CRLF.CRLF to indicate end of message.O Has ASCII command/response interaction, status codes.Is able to use a persistent TCP connection to transfer multiple objects.□ Operates mostly as a "client pull" protocol. 2.2-12 If-Modified-Since. What is the purpose of the If-Modified-Since field in a HTTP GET request messageO To allow the server to indicate to the client that it (the client) should cache this object.O To indicate to the server that the server should replace this named object with the new version of the object attached to the GET, if the object has not beenmodified since the specified timeO To indicate to the server that the client wishes to receive this object, and the time it until it which it will cache the returned objectO To inform the HTTP cache that it (the cache) should retrieve the full object from the server, and then cache it until the specified time.O To indicate to the server that the client has cached this object from a previous GET, and the time it was cached.

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Answered: 2.3-4 Comparing and contrasting HTTP…

2.3-4 Comparing and contrasting HTTP and SMTP (3). Which of the following characteristics apply to both HTTP and SMTP? Note: check one or more of the characteristics below. puch" protocol

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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