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Today's investors face what seems like an ever-growing variety of investment choices, with new mutual funds and exchange-traded funds (ETFs) continuing to arrive.

Trying to make sense of these different products doesn't have to be overwhelming. Here is what to expect, and some factors to consider as you weigh your investment objectives.

Before placing your first trade, you will need to decide whether you plan to trade on a cash basis or on margin. In this lesson, we will review the trading rules and violations that pertain to cash account trading.

As the term implies, a cash account requires that you pay for all purchases in full by the settlement date. For example, if you bought 1,000 shares of ABC stock on Monday for $10,000, you would need to have $10,000 in cash available in your account to pay for the trade on settlement date. According to industry standards, most securities have a settlement date that occurs on trade date plus 2 business days (T+2). That means that if you buy a stock on a Monday, settlement date would be Wednesday.

If you plan to trade strictly on a cash basis, there are 3 types of potential violations you should aim to avoid: good faith violations, freeriding, and cash liquidations.