- (Topic 2)
The owner of a restaurant reports that wireless network connections are lost intermittently throughout the day. Which of the following steps should a technician take to troubleshoot the issue? (Select TWO).
Correct Answer:
AD
The correct answers are A. Identify the location of devices that utilize 2.4GHz and D. Map all of the wireless signals in the restaurant. In order to troubleshoot the issue, the technician should first identify the location of devices that utilize the 2.4GHz frequency, as this can cause interference with the wireless signal. Additionally, the technician should map all of the wireless signals in the restaurant in order to identify any potential sources of interference. Checking to see if the phones are IJTP or STP lines, testing to see if the copper electrical wires are causing interference, verifying T568B is being used in the wiring closet patch panel, and scheduling timed router reboots throughout the day are not necessary steps for troubleshooting this issue.
- (Topic 3)
Which of the following cloud-computing concepts describes an application that is hosted on the internet but can be used and configured as needed internally per organization?
Correct Answer:
E
Platform as a service (PaaS) is a cloud-computing concept that describes an application that is hosted on the internet but can be used and configured as needed internally per organization. PaaS provides a platform for developing, testing, deploying, and managing applications without having to maintain the underlying infrastructure or software. Hybrid cloud is a combination of public and private cloud services that share data and resources. Public cloud is a cloud computing model that provides services and resources to anyone over the internet. Infrastructure as a service (IaaS) is a cloud computing model that provides servers, storage, networking, and software over the internet
- (Topic 4)
A user's brand new phone froze while information was being transferred from the old phone. When a technician reset the new phone, it functioned properly when a data transfer was not being attempted. When the technician tested the old phone, it did not appear to have any functionality issues and passed all forms of device testing. Which of the following is the most likely reason the data transfer failed?
Correct Answer:
D
The most likely reason the data transfer failed is D. The older phone utilized
different wireless protocols.
Wireless protocols are the standards that devices use to communicate with each other over a wireless network. Different wireless protocols have different features, such as speed, range, security, and compatibility. If the older phone and the new phone use different wireless protocols, they may not be able to transfer data smoothly or at all. For example, if the older phone uses Wi-Fi Direct and the new phone uses Bluetooth, they may not be able to connect or recognize each other.
To avoid this problem, you should make sure that both devices support the same wireless protocol and that they are in range of each other. You can also use a third-party app or service that can transfer data between different devices, such as Smart Switch1 or Move to iOS2. These apps can help you transfer data such as contacts, photos, messages, and more from your old phone to your new phone.
References:
2: Failure of data transfer from android to … - Apple Community 1: Smart Switch Transfer Issues - Samsung Electronics America
- (Topic 4)
A user calls the help desk about a 4K monitor that will not output an image from a desktop. The monitor was working previously but now shows a black screen with a message stating a signal is not detected. The desktop is connected via HDMI, and the monitor has an empty DVI port. Which of the following steps should the technician perform first?
(Select two).
Correct Answer:
AB
The first steps that the technician should perform are A. Check the version of the HDMI cable and B. Check the input source.
A possible cause of the problem is that the HDMI cable is not compatible with the 4K resolution of the monitor. HDMI cables have different versions that support different features and bandwidths. For example, HDMI 1.4 supports up to 4K at 30 Hz, while HDMI 2.0 supports up to 4K at 60 Hz1. The technician should check the version of the HDMI cable and make sure it matches the specifications of the monitor and the desktop. Another possible cause of the problem is that the monitor is not set to the correct input source. The input source is the option that allows the monitor to switch between different video signals from different ports, such as HDMI, DVI, VGA, or DisplayPort2. The technician should check the input source and make sure it is set to HDMI, since that is how the desktop is connected to the monitor. The input source can usually be changed using the buttons or menu on the monitor itself2.
- (Topic 1)
A user brings an older laptop to the help desk and reports issues with the keyboard. Upon
inspection, the technician does not see any external damage but notices that many keystrokes da not register in a word processor. The laptop works fine when the technician tests it with an external keyboard. Which of the following actions would MOST likely resolve the issue?
Correct Answer:
B
The most likely action that would resolve the issue is to clean the keyboard. Sometimes dust, hair, and other debris can affect keyboard functionality. The technician can try to clean the keyboard as much as possible, which may be enough to get the keyboard back in working order