Chapter 2 Quiz
Which option is used to maintain User-Server states in HTTP protocol?
Cookies
DNS is organized as a centralized structure in order to provide reliable services. T or F?
False
HTTP protocol is a "stateful" protocol, which means servers will maintain information about past client requests. T or F?
False
In P2P architecture, there should be a stable always -on server to provide reliable services to network users. T or F?
False
In P2P file distribution, an entire file should never be divided into chunks in order to provide fil integrity. T or F?
False
With non-persistent connections between browser and origin server, it is possible for a single TCP segment to carry two distinct HTTP request messages. T or F?
False
Which statement is NOT True about web caching?
It cannot be larger than 8G
Which of the following servers does not strictly belong to the hierarchical DNS architecture ?
Local DNS Name Servers
Which option is NOT a method in HTTP/1.1?
PULL
Which protocol is used to control data sending and receiving between mail servers in E-mail communications ?
SMTP
Domain name system aims to perform hostname IP address translation. T or F?
True
If a POP3 client does not send the delete command, copies of the messages that the client has retrieved remain in the mail server. T or F?
True
It is possible for a mail client to send e-mail messages over HTTP rather than SMTP. T or F?
True
Iterated query and recursive query are two different types of query in DNS name resolution. T or F?
True
Two distinct Web pages (for example, www.mit.edu/research.html and www.mit.edu/students.html) can be sent over the same persistent connection. T or F?
True
Local DNS name servers_____
cache resource records, but discard them after a period of time that is on the order of a few days
The transfer of an html file from one host to another is______. (you are encouraged to use google to do some research on this question)
loss-intolerant and time insensitive
Which statement is NOT true about CDN (content distribution network)?
subscriber will be directed to the central CDN server to access the requested content
Which option is a type of DNS records? A. A B. NS C. CNAME D. All of them
All of them
A browser will generate header lines as a function of_____ A. browser type and version B. user configuration of browser C. whether the browser has a cached version of the requested object D. all of the above
All the above
