What is the main function of the arithmetic logic unit (ALU) ?

communicating with the input devices

sending the output to the monitor

performing arithmetic and logical operations

controlling the flow of information between hardware components

What will be the value of discountRate after the following statements are executed? double discountRate = 0.0; int purchase = 100; if (purchase > 1000) discountRate = 0.05; else if (purchase > 750) discountRate = 0.

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Select the correct answer. Before developing a new application, the analysts in a team check whether the team can efficiently use its resources. They also check whether the product will fit their budget and bring monetary gains for the customer.

The Port Numbers in TCP and UDP uniquely identify: a. the TCP/UDP version. b. the Application protocol using TCP/UDP. c. the IP protocol below TCP/UDP. d. the router port number and type, such as Ethernet, Wi-Fi, etc.

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Out of a list of the values 2, 45, 18, 22, 8, and 37, what result would the MAX function return?

You have set up remote desktop for the company server running server 2008 so that your users can RDP in from their XP workstations. Users are calling you saying that they are being denied the ability to remote in. What is the most likely reason?

Select the correct answer. Emma, the quality control manager in a software development company, asks the testing team to check whether the user interface is friendly. To which type of testing is Emma referring? A. Usability testing B.

One of the claimed characteristics of a data warehouse is that it is nonupdateable. what does this mean?

Samuel needs to import information from Excel to an Access table, but he wants to ensure that if the source table is changed, the information in Access will be updated automatically.