Associate Customer Support Engineer Interview Questions and Answers

A database is a collection of data that is organized in a way that allows for easy retrieval and manipulation. A query for creating a table is a SQL statement that specifies the table name and the columns it will contain.

• To create a table in SQL, use the CREATE TABLE statement followed by the table name and column definitions

• Column definitions include the column name, data type, and any constraints

• Example: CREATE TABLE customers (id INT PRIMARY KEY, name VARCHAR(50), email VA...read more

Understanding the roles of phase, neutral, and ground in an electrical plug is crucial for safety and functionality.

• Phase: Carries the current to the load; typically connected to the live wire.

• Neutral: Completes the circuit by carrying current away; usually connected to the ground at the main panel.

• Ground: Provides a safety path for electricity; prevents shock by directing excess current to the earth.

• Example: In a standard 3-pin plug, the phase is often the right pin, neutral...read more

Unix commands for saving a file

• Use the 'vi' editor to save a file by typing ':w' and then ':q' to quit

• Use the 'nano' editor to save a file by typing 'Ctrl+O' to write out and 'Ctrl+X' to exit

• Use the 'echo' command to save text to a file by typing 'echo 'text' > filename'

• Use the 'cp' command to make a copy of a file by typing 'cp filename newfilename'

A switch is a networking device that connects devices together on a computer network.

• Switches operate at the data link layer of the OSI model.

• They use MAC addresses to forward data to the correct destination.

• Switches can improve network performance by reducing network congestion.

• Examples of switches include Cisco Catalyst switches and Netgear ProSAFE switches.