Prompt the user to select (with a menu) the first material. Then, prompt the user to select the second material. Prevent the user from selecting the same material twice by removing the first selected material from the second list of materials.

What type of computer network ensures high security ?

1. technician a says horsepower information can be used by consumers to compare the power of different automobile engines. technician b says that manufacturers will often list the horsepower output of their engines in the online service information. who is right?

Develop a function to create a document in the mongodb database “city” in the collection “inspections.” be sure it can handle error conditions gracefully. a. input -> argument to function will be set of key/value pairs in the data type acceptable to the mongodb driver insert api call b. return -> true if successful insert else false (require a screenshot)