IP addresses starting with 254 are APIPA addresses, which devices assign themselves when DHCP servers are unavailable to provide configuration.
Option A is incorrect. Incorrect subnet mask configuration would not cause APIPA addresses to be assigned.
Option C is incorrect. Static IP addressing would prevent a computer from seeking a DHCP server or using APIPA.
Option D is incorrect. DNS configuration errors affect name resolution, not IP address configuration.

Correct Answer. B. Create a document that outlines the user's complaint, the investigation into the email client and settings, the updates and corrections made, and the user's confirmation of the issue's resolution This documentation style is thorough and efficient, covering the initial problem, the investigative process, the solution, and the outcome, which provides a full picture of the incident for future reference or escalation.
Option A is incorrect. This misses the opportunity to document the diagnostic process that could inform future troubleshooting.
Option C is incorrect. While thorough, including too much communication detail can clutter the documentation and obscure key technical takeaways.
Option D is incorrect. This focuses too narrowly on technical details and omits the user experience and broader troubleshooting steps.

Correct Answer. B. Verify Anna's permissions on the folder containing the financial reports Since Anna's issue is specific to accessing a particular resource that others can access, the first step is to check her permissions for that folder. This will determine if there has been any change affecting her access.
Option A is incorrect because an account lockout would prevent her from logging into the system entirely, not just accessing specific files.
Option C is incorrect as restarting the computer would not affect her permissions on the server.
Option D is incorrect because antivirus software updates would not impact her permissions to access specific network resources.

Correct Answer. B. nslookup companywebsite.com nslookup is specifically designed to query the DNS server and return information to verify that the domain name is being correctly resolved into an IP address.
Option A is incorrect. While ping can confirm connectivity to an address, it does not provide detailed DNS resolution data.
Option C is incorrect. Flushing the DNS cache clears resolved DNS records but does not itself verify DNS server functionality.
Option D is incorrect. tracert shows the path packets take to a destination, useful for network path issues but less so for DNS resolution specifics.

Correct Answer. A. Check the app's permissions to access the network Ensuring that the collaboration app has the necessary permissions to access the network is crucial for two-way communication. If permissions are restricted, the app may not function correctly.
Option B is incorrect as push notifications affect how messages are alerted to the user but not the reception of messages within the app.
Option C is incorrect because data limits impact general data usage, which would typically affect both sending and receiving capabilities, not just one.
Option D is incorrect as clearing the cache generally resolves issues related to performance or outdated data, not specific network permissions.