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Saturday, January 9, 2010

verizon iview questions

Q: 5000 simultaneous requests? (Now i think fios sscfi need that capacity.)
A: on the IO side, consider NIO -- multiplexing?
A: executor thread pool may help.
A: For request processing, use a queue at each interface, just like Zed.
A: According to Anthony, most trading systems are queue based.
A: how about Catcha.com? horizontal scaling. http://publib.boulder.ibm.com/infocenter/wasinfo/v6r0/index.jsp?topic=/com.ibm.websphere.express.doc/info/exp/ae/rprf_queuetip.html has pictures.
 
 
diff btw arraylist and vector

if 5 connections opened, how do u get them closed before garbage collection

if u need to read disk, how to ensure uniform seek time?

diff btw string and stringbuffer

reentrant means?

how does class loading work?

how do u implement lazy loading?

Runnable vs Thread?