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You’re supporting the HR department. They need to identify employees in Chicago whose names start with “An”. You write the following query: Why is this query inefficient?

What will be the result of this query?

An operations analyst monitors inventory at a warehouse. What will this query show if the product name is “laptop”?

A technology company stores and analyzes customer data. What will this query show if the city is “San Francisco”?

An airline stores flight codes, and they want them cleaned and standardized. What will this query show if the flight code is ” aa123 “?

In a dataset, a feature  has a mean and variance . Suppose a new transformed feature is defined as . What is the expected value of the squared transformed feature, ?

To connect a computer to a switch or network wall outlet, a ___________________cable (also known as a patch cable) is used. 

Which unique hardcoded Hexadecimal addresses is associated with an Ethernet NIC? 

The _______________________ is the steps a device goes through when a computer is first turned on. The central processing unit (CPU) initializes itself. It looks to the system’s basic input/output system (BIOS or UEFI BIOS) for its first instruction. 

After Windows 8 , a ______________________ that has content that changes periodically.