DLLs, VBX or OCX files being unavailable or in the wrong versions. Applicatioins using say these older DLLs expect some behaviour which is not present.

SetMaxAge
public void setMaxAge (int expiry)
sets the maximum age of the cookie. The cookie will expire after that many seconds have passed. Negative values indicate the default behaviour: the cookie is not stored persistently, and will be deleted when the user agent exits. A zero value causes the cookie to be deleted
getMaxAge ():
public int getMaxAge ()
Returns the maximum specified age of the cookie. If none was specified, a negative value is returned, indicating the default behavior described with setMaxAge.

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You have a choice here as to how to play this: you can either go for it strongly, re-stating your relevant strengths - behaviour, experience and skills, or you can quietly confidently suggest: I don't know the other applicants, so it would be wrong for me to dismiss their claims. However, I am sure that I have all the main attributes the role requires, which, combined with determination and positive approach, should ensure that I'd be a very good choice.

Pick a relatively irrelevant skill and say that you don't find it as easy as you'd like, so you're working on it (don't just make this up - think about it and be truthful). Don't own up to a weakness in an area that's important to the role. As with the weaknesses question, you can state certain difficulties because they are actually quite acceptable, even commendable, they'd include: suffering fools gladly, giving up an impossible task, tolerating unkind behaviour like bullying, having to accept I can't help certain big problems in the world, etc. 

Don't get trapped into admitting to a temper or loss of control. Say you tend to get more annoyed with yourself than with other people or other situations. Annoyance isn't very productive, so you tend to try to understand and concentrate on finding a way around a problem or putting things straight.

Emphasise the positive behaviour, experience and achievements (ideally backed up with examples and evidence) which will impress the interviewer because of its relevance to the role requirements.

Try to focus on the particular priorities and requirements of the role, the targets and aims. Focus on working style and behaviour attributes that fit the preferences of the interviewer, since most interviewers prefer people like themselves.

Technical analysis is predicting the future behaviour of the price movement of a particular stock on the basis of past price trends. Apart from price the other imp factor considered in technical analysis is the volume of the trade.Technical analysis beleives in foll:
1.Price discountws everything i.e demand , supply forces, marketnews etc all factors are reflected in the price for the given period.
2.Prices move in trends.
3.Trends are repetitive

Fundamental analysis is the practice of studying the fundamentals of a company to determine if a business is a
good investment.  Fundamental analysis can answer questions such as "what are the chances this business is going to go bankrupt" and "how certain can I be that this stock will continue paying dividends?"  It involves studying financial statements such as the balance sheet.

Abstract class contains one or more unimplemented methods left for future implementation by its derived class.it has all property of class it cannot be instantiated.it provides default behaviour.

Interface is mear specification nothing is implemented its just a declaration.in java using interface we can model multiple inheritance. it provides design flexibility.