16 Questions
What is the role of the HTTP protocol in a client/server model?
It sends and receives web objects between clients and servers.
What is the purpose of the Domain Name System (DNS) in the context of web pages?
It translates host names to server IP addresses.
What is the significance of the port number 80 in the context of HTTP?
It allows web servers to listen for and accept HTTP requests.
What is the purpose of the TCP 3-Way Handshake?
To facilitate the establishment of a TCP connection between client and server.
Which component of a web page is addressable by a Unified Resource Locator (URL)?
Objects, such as HTML files or JPEG images
What does a client request in the context of web pages and HTTP?
It requests and receives responses from web servers for web objects using the HTTP protocol.
In non-persistent HTTP connections, what is the total transmission time for sending an initial request for a web page object?
2 x RTT + transmission time
What is a disadvantage of non-persistent HTTP connections?
Higher network resource wastage
What is the disadvantage of persistent HTTP connections compared to non-persistent connections?
Higher CPU and memory usage
What is the advantage of non-persistent HTTP connections in terms of security?
Connection termination after data transfer
In pipelined persistent connection, how many Round Trip Times (RTTs) are required for sending all the objects?
1 RTT
What is the benefit of using persistent HTTP connections in modern browsers like Chrome and Firefox?
Lower CPU and memory usage
How does non-persistent HTTP connection affect network resources usage?
It increases network resource usage
What is the main difference between pipelined and non-pipelined persistent connection?
Round Trip Times (RTTs) required
What contributes to the greater CPU overhead in non-persistent HTTP connections?
Frequent TCP connection establishment
What is the main reason for using persistent HTTP connections in modern browsers?
Reduction in Round Trip Times (RTTs)
This quiz covers the content from Lecture 5 of Dr. Dina Fawzy's Computer Networks course, focusing on the HTTP protocol, HTTP connections, messages, user-server state, cookies, web caching, and proxy servers. The material is based on the book 'Computer Networking: A Top Down Approach' by Jim Kurose and Keith Ross.
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