Which of the following statement about virtualization is true?
The capabilities of cellular networks have improved greatly since their original development for analog voice phone calls. Most recently, fourth-generation (4G) wireless supports a variety of data-intensive needs.
A benefit of 4G networks is that they:
A friend has called you about a possible computer problem because her computer is acting strangely. Sounds play unexpectedly, the monitor turns off suddenly, the hard-drive light flashes constantly, the computer sometimes reboots itself without warning. When you inspect your friend’s system, you notice that several ports are open. Which of the following is most likely the cause of these symptoms?
Wireless networks are subject to more security issues than standard wired networks. Which wireless security protocol can prevent unauthorized devices from connecting to the wireless network?
The Internet has enabled many new anti-social activities, such as online stalking, cyberbullying, and addiction to solitary online activities. Which choice is the most feasible way for schools and parents to reduce cyberbullying?
John is the network administrator for a small company. The company’s network equipment has become outdated, and John has been asked to recommend a plan to update the company’s infrastructure. John has read extensively about the many advantages of using cloud-based services. Which of the following is an advantage of cloud-based services that John could cite to support his recommendation?
Gwen works for a small company where she has been asked to find a cost-effective option for providing comprehensive customer service. The finance, technical support, sales and customer service departments all need to share information about their customers. Gwen is considering adoption of a customer relationship management (CRM) application. Which of the following would be the most cost-effective solution?
