Exam 220-1102 topic 1 question 93 discussion

There are three reasons for this error: 1. commonly it is because of certificate error, so certificate needs to be updated. 2. SSL/TLS that browser cannot make a secure connection, so we see this error. 3. the third reason is synchronization of date and time. Definitely D is the answer

Remote users who were not connected to corporate resources DID NOT have any issues. Which means that the website itself didn't have issues.

When time and date is not synched with the network then the network looks at the website as out of date and by the signatures not being trusted, this can cause a certificate error, and these are normally corrected by doing windows updates and which explains why other users are experiencing this same issue.

The MOST likely cause of the issue where staff members receive messages that websites cannot be trusted, especially if remote users not connected to corporate resources do not have the issue, is: B. A router was misconfigured and was blocking traffic. A misconfigured router can lead to various network issues, including blocking legitimate traffic to certain websites. This can result in users receiving messages that the website is not trusted due to the router incorrectly handling SSL/TLS certificates or other security-related configurations. Verifying the router configuration and ensuring that it allows traffic to trusted websites should help resolve the issue for affected staff members.

Looked around a bunch, including multiple AI answers. This one made the most sense to me. A. A bad antivirus signature update was installed. When users across multiple systems experience issues with websites being flagged as untrusted shortly after one user encounters the problem, it suggests a common factor affecting all users. A bad antivirus signature update could cause this behavior by incorrectly flagging legitimate websites as untrusted, leading to warnings or blocks when users attempt to access them. Options B, C, and D are less likely to be the cause of the issue: Option B, a misconfigured router blocking traffic, would likely result in more widespread connectivity issues beyond just website trust messages. Option D, the time or date not being in sync with the website, could cause SSL certificate validation issues, but it would typically not manifest as a widespread problem across numerous websites. Additionally, it's less likely to be the cause if remote users unaffected by corporate resources are not experiencing the same issue.

I thought it was B at first until i read"nearly all websites that use encrypted data need your computer to be synchronised to the server as a security measure. So you can do a lot of things with the wrong date set, but not social media, buying items, or banking"

The answer is B as users not on the corporate wifi had no issues.

After reading the question multiple times, I will have to say that B. A router was misconfigured and was blocking traffic, is the correct answer. The questions states that it's not one user but multiple users having the same issues and while trying to access multiple sites, while others who are not on the company's network were not having any issues. If it was just one person then I would agree that D would have been the most logical reason but since it's multiple users that it has to be a misconfigured router issue.

Considering these points, a bad antivirus signature update is a plausible explanation. Antivirus software often includes features that scan websites for potential threats and determine their trustworthiness. If a recent antivirus signature update contained an error or false positive, it could incorrectly flag websites as untrusted or potentially unsafe. This would result in the consistent warnings experienced by multiple colleagues across different websites. So its A

D. The time or date was not in sync with the website. This issue is likely related to SSL/TLS certificates used by websites. When a device's time and date are not synchronized correctly with the actual time, SSL/TLS certificates may appear as expired or not trusted, leading to security warnings. SSL/TLS certificates have validity periods, and if the device's clock is significantly off, it can cause these certificates to appear invalid, resulting in the warning message about the website not being trusted. Remote users who were not connected to corporate resources might not have experienced the issue because their devices' clocks were likely synchronized correctly with internet time servers. It's a common security practice to ensure that devices have accurate time and date settings to prevent these types of issues with SSL/TLS certificates.

B. A router was misconfigured and was blocking traffic. The most likely cause of this issue is a misconfigured router that is blocking traffic to certain websites. This could be due to a number of factors, such as incorrect firewall settings or a problem with the router's configuration. The fact that several colleagues are experiencing the same issue across numerous websites suggests that the problem is not specific to any one website, but rather a broader network issue affecting multiple sites. Remote users who are not connected to corporate resources are not affected because they are not using the same network infrastructure as the affected staff members. A bad antivirus signature update or a problem with the time or date would not likely cause this type of issue, and an upstream internet service provider flapping would affect all users, not just those within a specific organization. -ChatGPT

When date or time arent in sync, can cause cert issues. That would epxlain why people who were working remote were not experiencing the same issues.

D. The time or date was not in sync with the website. When the time or date on a computer is not in sync with the website's server, it can cause SSL/TLS certificates to appear invalid, resulting in trust warnings. This issue can affect multiple users within a corporate network, while remote users who are not connected to the same network may not experience any problems.

The most likely cause of this issue is D. The time or date was not in sync with the website. When a user receives a message that a website cannot be trusted, it means that the security certificate used by the website is not trusted by the user's web browser. Web browsers rely on security certificates to verify the authenticity of websites and to establish secure connections with them. If the security certificate is not trusted, the browser will display a warning message. One common cause of this issue is when the time or date on the user's computer is not in sync with the time or date on the website's server. This can cause the security certificate to appear as if it has expired or is otherwise invalid, even if it is still valid. To resolve the issue, the user should check that the time and date on their computer are correct and adjust them if necessary. They may also need to clear their browser's cache and cookies, or adjust their browser's security settings to recognize the website's security certificate as trusted. Source: ChatGPT

ChatGPT says: A. A bad antivirus signature update was installed. why? This is the most likely cause of the issue, as the antivirus signature update could have caused the system to mistakenly identify the websites as malicious, causing the messages to appear. The other options are less likely causes of the issue.

Unless the NTP server was off B makes the most sense. It is relatively easy to block websites from a router. I think the key thing is that "Remote users who were not connected to corporate resources did not have any issues." Meaning that they were not using the corporate router. But same could be said about an NTP server, however, NTP servers are typically using a NIST timing standard so its unlikely that it would be off.

D. The time or date was not in sync with the website. This issue is often caused by an incorrect time or date on the computer, which can cause the browser to not recognize the SSL certificate presented by the website as being valid. As a result, the browser may display a warning message stating that the website is not trusted or secure.