A user's company-issued smartphone is swollen and will not fit in its protective enclosure. Which of the following would a technician most likely do?
Answer(s): A
A swollen smartphone battery is a sign of chemical degradation and a potential safety hazard. Replacing the battery restores proper fit and ensures safe operation.
A customer uses multipart forms in a dot matrix printer. They report that nothing prints on the top page of the multipart form, but the bottom pages print fine. Which of the following should a technician do to resolve the issue?
Answer(s): C
In a dot matrix printer, the ribbon transfers ink to the paper when the printhead pins strike it. If the top page of a multipart form does not print clearly while lower pages still show marks, it indicates that the ribbon is worn out and lacks sufficient ink density. Replacing the ribbon restores proper print quality across all pages.
Which of the following uses a small and portable private network to allow multiple wireless devices to share an internet connection?
Tethering allows a device (such as a smartphone) to share its mobile data connection with other devices through Wi-Fi, Bluetooth, or USB, creating a small private network for internet access.
Which of the following DNS records should a technician configure to allow domains that are not owned by the company to send messages on the company's behalf?
An SPF (Sender Policy Framework) record specifies which mail servers or domains are authorized to send emails on behalf of a domain. Configuring the SPF record to include third-party domains allows them to send messages legitimately for the company, helping prevent spoofing and unauthorized email use.
An office is experiencing frequent wireless outages and slow network speeds. A technician confirms that all wireless devices are experiencing the same symptoms. Which of the following should the technician do to determine whether the issue is external or internal?
By connecting a device directly to the network via Ethernet, the technician can determine if the issue is isolated to the wireless network or affects the entire network. If the wired connection works properly, the problem is internal to the wireless network; if not, the issue is likely external (e.g., with the ISP or modem).
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