What is the first step you should perform before working inside the case of a working computer?
What will be an ideal response?
If you are starting with a working computer, make sure important data is first backed up. Copy the data to an external storage device such as a flash drive or external hard drive. If something goes wrong while you're working inside the computer, at least your data will be safe.
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Answer the following questions true (T) or false (F)
1. Binary files can be handled more efficiently than text files. 2. The preferred stream classes for processing binary files are ObjectInputStream and ObjectOutputStream.
Consider the following six relations for an order-processing database application in a company:
CUSTOMER (Cust#, Cname, City) ORDER (Order#, Odate, Cust#, Ord_Amt) ORDER_ITEM (Order#, Item#, Qty) ITEM (Item#, Unit_price) SHIPMENT (Order#, Warehouse#, Ship_date) WAREHOUSE (Warehouse#, City) Here, Ord_Amt refers to total dollar amount of an order; Odate is the date the order was placed; Ship_date is the date an order (or part of an order) is shipped from the warehouse. Assume that an order can be shipped from several warehouses. Specify the foreign keys for this schema, stating any assumptions you make. What other constraints can you think of for this database?
What is the simplest way to create a file in Linux?
A. Use the open command. B. Use the create command. C. Use the touch command. D. Use the new command.
You can apply 3D properties to ____ instances.
A. graphic B. text C. movie clip D. all of the above