Which invention marks the beginning of mass communication around the globe

1. You are the network manager for a computer training center that allows students to bring their own laptops to class for learning and taking notes.

Technician A says backup sensors use LEDs to detect objects. Technician B says that a backup sensor won't work correctly if the paint is thicker than 0.002 inch. Which technician is correct

The file extension for Access 2007 and 2010 database filenames is. accdb. What is the file extension for older versions of Access database files.

Which remarketing audiences can be defined in google analytics? (select all that apply) ?

Why dose a fiber optic cable send information quickly over long distance

On the UB-04 claim form, the type of bill is identified by a four-digit numerical code. The first digit is a leading zero, what does the second digit represent?

WLAN uses radio waves to transmit data between wireless devices. True or False

You have a new e-commerce web application written in Angular framework which is deployed to a fleet of EC2 instances behind an Application Load Balancer. You configured the load balancer to perform health checks on these EC2 instances.

JAVA What is the running time required for repeatedly splitting a problem into two equally sized halves, assuming no additional work needs to be done? O (1) O (log10N) O (log2N) O (log2N) O (N) O (N log N) O (N2) O (N3) O (Nk) O (2N) O (N!)

A technician is dispatch to troubleshoot a user's computer. After performing diagnostics, the technician determines that drive thrashing is occurring.