Mobility Plus Certification Trivia Quiz

The use of a fingerprint or retina scan to authenticate to a system is an example of a biometric authentication method. Biometric authentication relies on unique physical or behavioral characteristics of an individual, such as fingerprints or retina patterns, to verify their identity. This method provides a higher level of security compared to traditional password-based authentication, as it is difficult to replicate or fake these biometric traits.

To help secure the wireless connection, implementing WPA2 is the correct answer. WPA2 (Wi-Fi Protected Access 2) is a security protocol that provides stronger encryption and authentication methods compared to its predecessor, WPA. It helps prevent unauthorized access to the wireless network by requiring users to enter a password or passphrase before connecting. WPA2 is considered more secure and recommended for protecting wireless connections against potential threats and unauthorized usage.

The best course of action for the network administrator is to whitelist the site. Whitelisting the site means allowing access to the specific website that Franck needs for his job, while still maintaining the content filter in place. This ensures that Franck can access the necessary website without compromising the overall security and filtering measures in the network.

WiFi is assigned to the frequency of 2.4 GHz. This frequency is commonly used for wireless communication and is specifically allocated for WiFi networks. It allows for high-speed data transmission and is capable of penetrating walls and other obstacles, making it suitable for indoor and short-range wireless connections.

The correct answer is Physical. The physical layer of the OSI model is responsible for the actual transmission and reception of data over a network. It deals with the physical aspects of the network, such as the cables, connectors, and network interface cards. Using a CAT5e cable on a LAN is a physical layer activity as it determines the physical medium through which the data is transmitted.

After the technician has fully resolved the issue, it is important to document the findings. This is necessary to keep a record of the problem that occurred and how it was resolved. Documenting the findings helps in maintaining a reference for future troubleshooting or if similar issues arise again. It also helps in tracking patterns or trends in technical problems and their solutions.

To ensure that Betty's mobile device will function in the destination country, the administrator should contact the cellular provider first. The cellular provider will be able to provide information on international roaming services, network compatibility, and any necessary settings or configurations that may be required for the device to work in the destination country. By contacting the cellular provider, Betty can avoid any potential issues or disruptions with her mobile device while traveling internationally.

The best explanation for Mary losing connectivity while moving between locations in the building is that the issue is related to attenuation. Attenuation refers to the weakening or loss of signal strength as it travels through obstacles or over distance. In this case, as Mary moves from one location to another, the signal fades and then comes back again, indicating that there is a loss of signal strength due to attenuation. This could be caused by physical barriers or distance between Mary and the wireless access point.

Port 21 should be blocked because it is the standard port for FTP (File Transfer Protocol). By blocking this port, the network administrator can prevent the mobile devices from establishing FTP connections and sending data to the unknown location, thereby mitigating the unusual volume of traffic.

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