Which of the following wireless technologies requires a distance of approximately 4 cm (1.5 inches) in order to establish a communications link between devices?

• Infrared

• WiFi

• NFC

• Bluetooth

A developer is creating a program that will store a customer's latest order number. The value will change each time a customer creates a new order. Which of the following would MOST likely be used to store the value?

• Object

• Constant

• Array

• Variable

Jonathan has a computer with an older PC bus interface and is getting a fiber optic connection for his home office. Which of the following BEST describes the processing speed environment?

• Both the older PC bus and the fiber optic equipment run at a MHz processing speed.

• The older PC bus runs at a MHz processing speed, while the fiber optic network equipment runs at a GHz processing speed.

• The older PC bus runs at a KHz processing speed, while the fiber optic network equipment runs at a MHz processing speed.

• Both the older PC bus and the fiber optic equipment run at a KHz processing speed.

What does the following pseudocode do if the input entered is 10, 12, 18, 4, 6?

• 25

• 50

• 10

• 12

You are working on a program that needs to keep track of many values at the same time. Which of the following would you use?

• An array

• A constant

• A variable

• A float

Which of the following is NOT a long-term storage device?

• Flash drive

• Compact disc

• Hard disk

• RAM

A technician is checking a customer's wireless network performance and has determined it was using 802.11g. The technician's recommendation is for the customer to upgrade to 802.11ac. Which of the following is the BEST reason to upgrade?

• Improved performance

• More overlapping channels

• Less attenuation

• 802.11g uses older technology

You have just connected a new USB device to your Windows system. You used the installation disc that came with the device to install the drivers needed to support the device. After the installation, the system frequently crashes when you try to access the new device. Which of the following steps would MOST likely resolve this issue?

• Run the Add Legacy Hardware wizard and manually configure the device.

• Replace the device itself.

• Remove and then reinstall the device.

• Download and install the latest driver from the manufacturer's website.

An IT administrator wants to provide a graphical interface tool for company sales representatives to quickly find product information and pricing in a relational database (without using SQL commands). Which of the following would provide the type of access the sales representatives need?

• User interface access

• Query builder

• DBMS (database management system)

• Collaboration software

You are configuring the local security policy of a Windows system. You want to prevent users from reusing old passwords. You also want to force them to use a new password for at least 5 days before changing it again. Which of the following policies are BEST to configure?

• Maximum password age

• Enforce password history

• Password complexity

• Minimum password length

• Minimum password age