Interview Questions

An invoice or bill is a commercial document issued by a seller to the buyer, indicating the products, quantities, and agreed prices for products or services the seller has provided the buyer. An invoice indicates the buyer must pay the seller, according to the payment terms.

In the rental industry, an invoice must include a specific reference to the duration of the time being billed, so rather than quantity, price and discount the invoicing amount is based on quantity, price, discount and duration. Generally speaking each line of a rental invoice will refer to the actual hours, days, weeks, months etc being billed.

From the point of view of a seller, an invoice is a sales invoice. From the point of view of a buyer, an invoice is a purchase invoice. The document indicates the buyer and seller, but the term invoice indicates money is owed or owing. In English, the context of the term invoice is usually used to clarify its meaning, such as "We sent them an invoice" (they owe us money) or "We received an invoice from them" (we owe them money).

A commercial bank is a type of financial institution that accepts deposits, offers checking account services, makes business, personal and mortgage loans, and offers basic financial products like certificates of deposit (CDs) and savings accounts to individuals and small businesses. A commercial bank is where most people do their banking, as opposed to an investment bank.

Commercial banks are funded through customer deposits. These banks make money by providing loans and earning interest income from those loans. The types of loans a commercial bank can issue vary and may include mortgages, auto loans, business loans and personal loans. A commercial bank may specialize in just one or a few types of loans.

Customers who deposit money into these accounts effectively lend money to the bank and are paid interest. However, the interest rate paid by the bank on money they borrow is less than the rate charged on money they lend.

The protocol specifies that frames need to be numbered. This is done by using sequence numbers. A field is added to the data frame to hold the sequence number of that frame. Since we want to minimize the frame size, the smallest range that provides unambiguous communication. The sequence numbers can wrap around.

a) Checking Account: You can access the account as the saving account but, unlike saving account, you cannot earn interest on this account. The benefit of this account is that there is no limit for withdrawal.

b) Saving Account: You can save your money in such account and also earn interest on it. The number of withdrawal is limited and need to maintain the minimum amount of balance in the account to remain active.

c) Money Market Account: This account gives benefits of both saving and checking accounts. You can withdraw the amount and yet you can earn higher interest on it. This account can be opened with a minimum balance.

d) CD (Certificate of Deposits) Account: In such account you have to deposit your money for the fixed period of time (5-7 years), and you will earn the interest on it. The rate of interest is decided by the bank, and you cannot withdraw the funds until the fixed period expires.

With respect to multithreading, synchronization is the capability to control the access of multiple threads to shared resources. Without synchronization, it is possible for one thread to modify a shared object while another thread is in the process of using or updating that object's value. This often leads to significant errors.

In GUI testing, need to cover the customer requirement if don't have to validate  Font size, colors, spellings(labels) etc.

Every application should follow Microsoft rules like

- Controls should be Initcap (i.e every label should start with Capital letter )Can observe that in Win applications every label starts with Caps

- OK or Cancel button should exist

- Controls should not be overlapped

- Controls should be alligned properly (left side alignment is mandatory but the right side is optional)

- Controls should be visible

- Short cut keys should be provided

- System menu should exist (i.e if u press Alt key + Space bar a menu will appear at the left most corner )

- Mouse pointer events 

Colors, Label Names, Tab Order, Alignment, graphs , Navigation of the software to test in GUI Testing.