A user visits the desk to report that a smartphone takes more than a day to fully charge. The user has already tested multiple wall outlets and swapped the charging cable, but the results are the same. Which of the following should the technician do FIRST?
Correct Answer: A
Explanation A smartphone that takes more than a day to fully charge may be due to a charger that is not powerful enough. The technician should verify that the charger is rated for the smartphone's battery capacity and that it is providing the correct voltage and amperage123.
Question 192
A technician attempts to join a Windows client to a domain but receives the following error: An attempt to resolve the hostname has failed. The technician generates the display shown below utilizing ipconfig /all. Which of the following is the most likely reason for the error?
Correct Answer: A
The most likely reason for the error is that the DNS server is not configured correctly. The technician should check the DNS server settings and make sure they are correct. DNS, or Domain Name System, is a service that translates domain names, such as www.example.com, into IP addresses, such as 192.168.1.1, that computers use to communicate with each other. DNS is essential for joining a Windows client to a domain, which is a logical group of computers that share a common directory and security policy. A domain name, such as example.com, identifies the domain and its members on the network. To join a Windows client to a domain, the client needs to resolve the hostname of the domain controller, which is the server that manages the domain and its resources. The client sends a DNS query to the DNS server, asking for the IP address of the domain controller. The DNS server responds with the IP address, and the client uses it to establish a connection with the domain controller and complete the domain join process. However, if the DNS server is not configured correctly, the client may not be able to resolve the hostname of the domain controller, and receive the error: An attempt to resolve the hostname has failed. This can happen if the DNS server is not reachable, not authoritative, or not updated. For example, the DNS server may have an incorrect IP address, a wrong DNS suffix, a missing or outdated DNS record, or a firewall blocking the DNS traffic. To fix the error, the technician should verify that the DNS server settings on the client and the domain controller are correct and consistent. The technician can use the ipconfig /all command to display the DNS server settings, such as the IPv4 address, the subnet mask, the default gateway, and the DNS suffix. The technician can also use the nslookup command to test the DNS resolution and the ping command to test the connectivity. The technician should make sure that the client and the domain controller are using the same DNS server, and that the DNS server can resolve the hostname of the domain controller. References: * How to Resolve the "Temporary failure in name resolution" Error1 * Strict hostname resolution configured but no hostname was set2 * Error: Hostname Not Resolved to an IP Address - HostGator3 * The Host Name Could Not be Resolved in DNS4 * Troubleshoot DNS name resolution on the Internet - Windows Server5
Question 193
A user's laptop keyboard is not working properly. A technician notices that when the keys for special characters are pressed, other characters appear instead. Which of the following should the technician do first to diagnose the issue?
Correct Answer: A
The first thing that the technician should do to diagnose the issue is A. Check the keyboard layout. The keyboard layout is the arrangement of the keys and symbols on the keyboard, which can vary depending on the language, region, or standard. If the keyboard layout is not set correctly, it can cause the keys to produce different characters than expected. For example, if the keyboard layout is set to French, pressing the key for @ will produce a instead. To check and change the keyboard layout, the technician can follow these steps: *On Windows 10, click on the Start menu and select Settings. *Click on Time & Language and then on Language. *Under Preferred languages, click on the current language and then on Options. *Under Keyboards, check if the keyboard layout matches the physical keyboard. If not, click on Add a keyboard and select the correct layout. Alternatively, click on Remove to delete any unwanted layouts. *To switch between keyboard layouts, use the shortcut Windows key + Space bar. Checking the keyboard layout can help identify and fix the issue quickly and easily, without requiring any hardware or software changes. Therefore, it is the best first step to diagnose the issue. References: How to change your keyboard layout on Windows 10 PC | Windows Central How to type French accents on a PC - FrenchCrazy
Question 194
Isolating email attachments in a safe place until the attachments can be scanned for malware is defined as:
Correct Answer: D
The correct answer is D. Sandboxing. Sandboxing is a security technique that isolates email attachments in a safe place until the attachments can be scanned for malware. A sandbox is a virtual environment that mimics the operating system and applications of the user, but prevents any changes or damage to the actual system. A sandbox can also monitor the behavior and activity of the attachments and detect any malicious code or actions12. An approve listing is a security technique that allows only trusted or authorized email senders or domains to be received by the user. An approve listing can help reduce spam and phishing emails, but it does not scan or isolate email attachments for malware3. A screened subnet is a security technique that creates a buffer zone between the internal network and the internet. A screened subnet uses firewalls and routers to filter and control the traffic that enters and exits the network. A screened subnet can help protect the network from external attacks, but it does not scan or isolate email attachments for malware. Cross-platform virtualization is a technology that allows running multiple operating systems and applications on the same physical machine. Cross-platform virtualization can help improve efficiency, flexibility, and compatibility, but it does not scan or isolate email attachments for malware.
Question 195
A user reports the touch screen on an Android smartphone is not responding to any input. The technician has cleared the cache, restarted the phone, and ensured the phone is fully charged. The issue still persists. Which of the following should the technician replace on the phone to MOST likely resolve the issue?
