220-1202 Browser and Application Security — All Questions With Answers

Question 1

A technician is troubleshooting a Windows 10 computer where the user cannot install a legitimate browser extension because the browser displays a warning that extensions from this source are not allowed. What setting is likely blocking the installation?

Accepted Answer

The computer is running Windows 10 in S mode.. Windows 10's S mode restricts app installations to the Microsoft Store, which also affects browser extensions. Disabling S mode or using a different browser that supports the extension is the solution.

Answer

The browser is in private browsing mode.

Answer

The user account does not have administrator privileges.

Answer

The browser's security level is set to high.

Question 2

A company policy requires that all web traffic from employee computers be filtered to block known malicious sites. You need to implement this without installing client software on each machine. Which approach should you use?

Accepted Answer

Implement a DNS-based content filtering service on the network's DNS server.. A DNS-based content filter (like OpenDNS or a corporate DNS server) can block malicious domains without requiring client software. This is a scalable solution for network-wide filtering.

Answer

Configure each browser's proxy settings to use a filtering proxy server.

Answer

Enable Windows Defender SmartScreen on each computer via Group Policy.

Answer

Install a third-party browser extension on all browsers to block malicious sites.

Question 3

A user receives an email with a link that appears to be from their bank, asking them to verify their account. The link leads to a page that looks exactly like the bank's login page. What type of attack is this?

Accepted Answer

A phishing attack.. This is a phishing attack, where the attacker creates a fake login page to steal credentials. Users should be trained to verify URLs and never enter credentials from email links.

Answer

A man-in-the-middle attack.

Answer

A ransomware attack.

Answer

A cross-site scripting (XSS) attack.

Question 4

During a security incident response, you discover that a user's browser has a rogue extension that exfiltrates data to a remote server. The extension was installed after the user clicked a fake update prompt on a website. What vulnerability was exploited?

Accepted Answer

Social engineering.. This is a social engineering attack where the user was tricked into installing malicious software. No technical vulnerability was exploited; the user's trust was manipulated.

Answer

A zero-day vulnerability in the browser.

Answer

An insecure direct object reference (IDOR) vulnerability.

Answer

A cross-site request forgery (CSRF) attack.

Question 5

A user reports that their web browser frequently redirects to an unfamiliar search engine and displays pop-up ads even when no tabs are open. What is the most likely cause of this behavior?

Accepted Answer

The user has accidentally enabled a malicious browser extension.. This scenario describes classic symptoms of a browser hijacker, a type of malware that modifies browser settings without permission. The correct action is to scan and remove the malicious software using an anti-malware tool, as simply resetting settings or clearing caches may not remove the underlying infection.

Answer

The browser needs to be updated to the latest version.

Answer

The internet connection is unstable and causing DNS errors.

Answer

The browser cache is full and needs to be cleared.

Question 6

During a security audit, you find that a user's browser has an outdated version of Adobe Flash Player installed. What is the primary security risk associated with this finding?

Accepted Answer

Attackers can exploit known vulnerabilities in the plugin to install malware.. Outdated plugins like Flash Player are common attack vectors because they contain known vulnerabilities that malware can exploit. Keeping software updated is a fundamental browser security practice.

Answer

The browser will run slower and may crash frequently.

Answer

The user will be unable to view some web content.

Answer

The browser will automatically disable the plugin.

Question 7

A technician is configuring a shared kiosk computer in a library. The requirement is that users must not be able to download files or install software. Which browser security setting should be configured?

Accepted Answer

Set the browser to block all downloads and prompt for a save location.. Configuring the browser to prompt for download location and then blocking downloads via Group Policy or registry is effective. The simplest approach is to disable downloads entirely in the browser settings or use a kiosk mode that restricts functionality.

Answer

Disable JavaScript in the browser.

Answer

Enable the browser's private browsing mode.

Answer

Clear the browser cache and cookies daily.

Question 8

A small business owner asks you to configure their office computers so that employees cannot install unauthorized browser extensions. Which policy setting should you implement?

Accepted Answer

Use Group Policy to block extension installation and whitelist approved extensions.. Group Policy is the correct tool in Windows environments to enforce restrictions on browser extensions across multiple computers. This prevents users from adding potentially malicious or unapproved extensions, enhancing security.

Answer

Disable the browser's developer mode in the settings.

Answer

Set the browser to always use private browsing mode.

Answer

Install a pop-up blocker on each computer.

Question 9

A customer reports that their browser shows a 'Your connection is not private' warning when visiting their online banking site, but other websites work fine. What is the most likely cause?

Accepted Answer

The bank's SSL certificate has expired or is misconfigured.. This warning typically indicates a certificate issue, such as an expired or invalid SSL certificate on the banking site itself. It is not a problem with the user's browser or computer.

Answer

The user's system date and time are incorrect.

Answer

The user's browser is infected with a man-in-the-middle proxy.

Answer

The user's anti-virus is blocking the connection.

Question 10

A user calls the help desk complaining that their browser homepage keeps changing to a site they did not set, and they cannot change it back. You remotely check and find no malware. What is the most likely cause?

Accepted Answer

A recently installed program modified the browser settings during installation.. Some legitimate software installers include options to change browser settings, and users may inadvertently agree. This is a common cause of homepage changes that are not malware-related.

Answer

The user's browser profile is corrupted.

Answer

The user's DNS settings are being hijacked by the ISP.

Answer

The browser's shortcut target is pointing to a different URL.

Question 11

A user reports that their browser crashes every time they visit a particular website. Other websites work fine. The technician tries the same website on another computer and it works normally. What is the most likely cause on the user's computer?

Accepted Answer

A browser extension is incompatible with that website.. A corrupted browser extension or add-on can cause crashes on specific sites. Since the site works on another computer, the issue is local. Disabling extensions one by one can isolate the problem. Other causes like malware or outdated drivers are less specific to a single site.

Answer

The website has been blacklisted by the company's firewall.

Answer

The user's network adapter driver is outdated.

Answer

The website is using a newer version of TLS that the browser doesn't support.

Question 12

A user reports that after installing a free PDF converter from an advertisement, their browser homepage changed and they see constant pop-ups for antivirus software. A malware scan found PUPs (Potentially Unwanted Programs). What is the best next step to fully remove the unwanted software and restore browser settings?

Accepted Answer

Use a dedicated adware removal tool and then reset the browser.. PUPs like browser hijackers often come bundled with free software. Using a dedicated PUP removal tool or adware cleaner is more effective than a standard antivirus scan. After removal, resetting the browser ensures all changes are reverted.

Answer

Run System Restore to a point before installation.

Answer

Manually delete the program from Program Files.

Answer

Disable the browser's JavaScript and ActiveX.

Question 13

A technician is investigating a security incident where a user's credentials were stolen. The user says they only logged into their email from a coffee shop Wi-Fi. The technician notices that the browser was not using HTTPS for the login page. What is the most likely attack method used?

Accepted Answer

Man-in-the-middle attack.. On an open Wi-Fi network, an attacker can perform a man-in-the-middle attack to intercept unencrypted HTTP traffic. Without HTTPS, the login credentials are sent in plaintext and can be captured easily. This is a common risk on public Wi-Fi.

Answer

Cross-site scripting (XSS) attack.

Answer

DNS spoofing attack.

Answer

Brute force attack.

Question 14

A user's browser is displaying a warning that the website's certificate is not trusted, even though the URL is correct. The technician checks the date and time on the computer and finds it is set to 2019. What is the most likely cause of the certificate warning?

Accepted Answer

The system date is incorrect, causing certificate validation to fail.. SSL certificates are time-sensitive; if the system date is far in the past or future, the browser cannot verify the certificate's validity. Synchronizing the system clock with a time server resolves this issue without needing to install a new certificate.

Answer

The website's SSL certificate has been revoked.

Answer

The browser's certificate store is corrupted.

Answer

The user is connected to a malicious proxy.

Question 15

A customer says that when they click a link in an email, it opens a website that looks exactly like their bank's login page, but the URL starts with 'http://' instead of 'https://'. What is the most likely security concern?

Accepted Answer

The email contains a phishing link.. The absence of HTTPS and the lookalike page strongly indicate a phishing attempt. Phishing sites often mimic legitimate sites to steal credentials, and the lack of encryption is a red flag. Users should never enter credentials on non-HTTPS pages, especially from email links.

Answer

The website is using an expired SSL certificate.

Answer

The user's browser is infected with adware.

Answer

The user's DNS server has been compromised.

Question 16

A technician is configuring a kiosk computer that will be used by the public to access a specific website. The technician wants to prevent users from navigating to other sites or changing browser settings. Which browser feature should be enabled?

Accepted Answer

Enable kiosk mode.. Kiosk mode locks the browser to a specific site or set of sites, hides the address bar, and disables settings access. This is ideal for public terminals. Other options like private browsing or parental controls do not provide the same level of restriction.

Answer

Enable private browsing mode.

Answer

Enable parental controls.

Answer

Disable the address bar via group policy.

Question 17

A technician is tasked with securing a legacy web application that only supports HTTP, not HTTPS. The application is critical for internal operations but must be accessible remotely. What is the best way to secure the traffic without modifying the application?

Accepted Answer

Use a VPN to access the internal network.. Using a VPN encrypts all traffic between the remote user and the internal network, including the unencrypted HTTP traffic from the legacy app. This provides a secure tunnel without requiring changes to the application itself. SSL/TLS termination could also work but requires a reverse proxy setup.

Answer

Install a self-signed SSL certificate on the server.

Answer

Enable HTTP Strict Transport Security (HSTS) on the server.

Answer

Configure the browser to use a proxy server.

Question 18

During a software deployment, a technician needs to ensure that a new web application can run in a sandboxed environment to prevent it from accessing other system resources. Which browser feature should be configured?

Accepted Answer

Enable browser sandboxing.. Modern browsers use sandboxing to isolate web applications from the operating system and other tabs. This security feature prevents malicious code from affecting the system, and it is often enabled by default but can be configured via browser settings or group policies.

Answer

Enable pop-up blocker.

Answer

Enable private browsing mode.

Answer

Disable JavaScript.

Question 19

A user reports that their browser frequently redirects to a search page they never set, and they see unfamiliar toolbars. After running a malware scan that found nothing, what should the technician do next to resolve the issue?

Accepted Answer

Reset the browser settings to default.. This scenario describes a browser hijacker, which is often not detected by standard antivirus scans. Resetting the browser removes unwanted extensions, toolbars, and reverts the homepage and search engine settings, solving the problem without reinstalling the OS or replacing hardware.

Answer

Replace the network cable.

Answer

Update the network adapter driver.

Answer

Reinstall the operating system.

Question 20

A small business owner wants to ensure that employees cannot install browser extensions or add-ons without administrator approval. Which method should the technician use to enforce this restriction across all company computers?

Accepted Answer

Use Group Policy to disable extension installation.. Group Policy in Windows allows administrators to centrally manage browser settings, including preventing extension installations. This is the standard enterprise approach for enforcing security policies across multiple computers.

Answer

Configure each browser's settings manually on every computer.

Answer

Install a third-party firewall to block extension downloads.

Answer

Set the browser to private browsing mode.

220-1202 Browser and Application Security — All Questions With Answers

A technician is troubleshooting a Windows 10 computer where the user cannot install a legitimate browser extension because the browser displays a warning that extensions from this source are not allowed. What setting is likely blocking the installation?

A company policy requires that all web traffic from employee computers be filtered to block known malicious sites. You need to implement this without installing client software on each machine. Which approach should you use?

A user receives an email with a link that appears to be from their bank, asking them to verify their account. The link leads to a page that looks exactly like the bank's login page. What type of attack is this?

During a security incident response, you discover that a user's browser has a rogue extension that exfiltrates data to a remote server. The extension was installed after the user clicked a fake update prompt on a website. What vulnerability was exploited?

A user reports that their web browser frequently redirects to an unfamiliar search engine and displays pop-up ads even when no tabs are open. What is the most likely cause of this behavior?

During a security audit, you find that a user's browser has an outdated version of Adobe Flash Player installed. What is the primary security risk associated with this finding?

A technician is configuring a shared kiosk computer in a library. The requirement is that users must not be able to download files or install software. Which browser security setting should be configured?

A small business owner asks you to configure their office computers so that employees cannot install unauthorized browser extensions. Which policy setting should you implement?

A customer reports that their browser shows a 'Your connection is not private' warning when visiting their online banking site, but other websites work fine. What is the most likely cause?

A user calls the help desk complaining that their browser homepage keeps changing to a site they did not set, and they cannot change it back. You remotely check and find no malware. What is the most likely cause?

A user reports that their browser crashes every time they visit a particular website. Other websites work fine. The technician tries the same website on another computer and it works normally. What is the most likely cause on the user's computer?

A technician is investigating a security incident where a user's credentials were stolen. The user says they only logged into their email from a coffee shop Wi-Fi. The technician notices that the browser was not using HTTPS for the login page. What is the most likely attack method used?

A user's browser is displaying a warning that the website's certificate is not trusted, even though the URL is correct. The technician checks the date and time on the computer and finds it is set to 2019. What is the most likely cause of the certificate warning?

A customer says that when they click a link in an email, it opens a website that looks exactly like their bank's login page, but the URL starts with 'http://' instead of 'https://'. What is the most likely security concern?

A technician is configuring a kiosk computer that will be used by the public to access a specific website. The technician wants to prevent users from navigating to other sites or changing browser settings. Which browser feature should be enabled?

A technician is tasked with securing a legacy web application that only supports HTTP, not HTTPS. The application is critical for internal operations but must be accessible remotely. What is the best way to secure the traffic without modifying the application?

During a software deployment, a technician needs to ensure that a new web application can run in a sandboxed environment to prevent it from accessing other system resources. Which browser feature should be configured?

A user reports that their browser frequently redirects to a search page they never set, and they see unfamiliar toolbars. After running a malware scan that found nothing, what should the technician do next to resolve the issue?

A small business owner wants to ensure that employees cannot install browser extensions or add-ons without administrator approval. Which method should the technician use to enforce this restriction across all company computers?

A technician is troubleshooting a computer that has been infected with ransomware. The ransomware encrypted files and left a note demanding payment. After removing the malware, what is the most important step to prevent future infections?

A company uses a web application for internal communication. A security audit reveals that the application is vulnerable to cross-site scripting (XSS). Which browser security feature can help mitigate the risk for users while the application is being patched?

A user calls the help desk saying that every time they click a link in an email, their browser opens a page that says 'Your computer is infected! Call this number.' They are unable to close the page normally. What type of attack is this, and what is the first step you should take?

A user reports that their browser frequently redirects to a different search engine, and a new toolbar has appeared. After checking the browser settings, you find the homepage has been changed and there are unknown extensions enabled. What is the most likely cause of this issue?

A company policy requires that all web traffic be filtered to block known malicious sites. You need to implement this on the network without installing software on each client. What should you configure?

A small business owner wants to ensure that employees cannot install unauthorized browser extensions on company-managed Windows 10 computers. Which method should you use to enforce this restriction?

During a security audit, you discover that a user's browser has multiple pop-up windows appearing, even when no websites are open. The user denies installing any software. Which tool should you use to identify and remove the underlying cause?

A user's browser is infected with a malicious extension that steals credentials. The extension was installed via a drive-by download from a compromised website. After removing the extension, what additional step should you take to ensure the credentials are not compromised?

A user reports that their browser displays a warning saying 'Your connection is not private' when visiting a frequently used banking site. After checking, you see the certificate error is for a different domain. What is the most likely cause?

You are configuring a new Windows 10 computer for a user who frequently downloads files from the internet. To reduce the risk of malware, you want to block the execution of downloaded files from the internet until they are scanned by antivirus. Which Windows feature should you enable?

220-1202 Browser and Application Security — All Questions With Answers

A technician is troubleshooting a Windows 10 computer where the user cannot install a legitimate browser extension because the browser displays a warning that extensions from this source are not allowed. What setting is likely blocking the installation?

A company policy requires that all web traffic from employee computers be filtered to block known malicious sites. You need to implement this without installing client software on each machine. Which approach should you use?

A user receives an email with a link that appears to be from their bank, asking them to verify their account. The link leads to a page that looks exactly like the bank's login page. What type of attack is this?

During a security incident response, you discover that a user's browser has a rogue extension that exfiltrates data to a remote server. The extension was installed after the user clicked a fake update prompt on a website. What vulnerability was exploited?

A user reports that their web browser frequently redirects to an unfamiliar search engine and displays pop-up ads even when no tabs are open. What is the most likely cause of this behavior?

During a security audit, you find that a user's browser has an outdated version of Adobe Flash Player installed. What is the primary security risk associated with this finding?

A technician is configuring a shared kiosk computer in a library. The requirement is that users must not be able to download files or install software. Which browser security setting should be configured?

A small business owner asks you to configure their office computers so that employees cannot install unauthorized browser extensions. Which policy setting should you implement?

A customer reports that their browser shows a 'Your connection is not private' warning when visiting their online banking site, but other websites work fine. What is the most likely cause?

A user calls the help desk complaining that their browser homepage keeps changing to a site they did not set, and they cannot change it back. You remotely check and find no malware. What is the most likely cause?

A user reports that their browser crashes every time they visit a particular website. Other websites work fine. The technician tries the same website on another computer and it works normally. What is the most likely cause on the user's computer?

A technician is investigating a security incident where a user's credentials were stolen. The user says they only logged into their email from a coffee shop Wi-Fi. The technician notices that the browser was not using HTTPS for the login page. What is the most likely attack method used?

A user's browser is displaying a warning that the website's certificate is not trusted, even though the URL is correct. The technician checks the date and time on the computer and finds it is set to 2019. What is the most likely cause of the certificate warning?

A customer says that when they click a link in an email, it opens a website that looks exactly like their bank's login page, but the URL starts with 'http://' instead of 'https://'. What is the most likely security concern?

A technician is configuring a kiosk computer that will be used by the public to access a specific website. The technician wants to prevent users from navigating to other sites or changing browser settings. Which browser feature should be enabled?

A technician is tasked with securing a legacy web application that only supports HTTP, not HTTPS. The application is critical for internal operations but must be accessible remotely. What is the best way to secure the traffic without modifying the application?

During a software deployment, a technician needs to ensure that a new web application can run in a sandboxed environment to prevent it from accessing other system resources. Which browser feature should be configured?

A user reports that their browser frequently redirects to a search page they never set, and they see unfamiliar toolbars. After running a malware scan that found nothing, what should the technician do next to resolve the issue?

A small business owner wants to ensure that employees cannot install browser extensions or add-ons without administrator approval. Which method should the technician use to enforce this restriction across all company computers?

A technician is troubleshooting a computer that has been infected with ransomware. The ransomware encrypted files and left a note demanding payment. After removing the malware, what is the most important step to prevent future infections?

A company uses a web application for internal communication. A security audit reveals that the application is vulnerable to cross-site scripting (XSS). Which browser security feature can help mitigate the risk for users while the application is being patched?

A user calls the help desk saying that every time they click a link in an email, their browser opens a page that says 'Your computer is infected! Call this number.' They are unable to close the page normally. What type of attack is this, and what is the first step you should take?

A user reports that their browser frequently redirects to a different search engine, and a new toolbar has appeared. After checking the browser settings, you find the homepage has been changed and there are unknown extensions enabled. What is the most likely cause of this issue?

A company policy requires that all web traffic be filtered to block known malicious sites. You need to implement this on the network without installing software on each client. What should you configure?

A small business owner wants to ensure that employees cannot install unauthorized browser extensions on company-managed Windows 10 computers. Which method should you use to enforce this restriction?

During a security audit, you discover that a user's browser has multiple pop-up windows appearing, even when no websites are open. The user denies installing any software. Which tool should you use to identify and remove the underlying cause?

A user's browser is infected with a malicious extension that steals credentials. The extension was installed via a drive-by download from a compromised website. After removing the extension, what additional step should you take to ensure the credentials are not compromised?

A user reports that their browser displays a warning saying 'Your connection is not private' when visiting a frequently used banking site. After checking, you see the certificate error is for a different domain. What is the most likely cause?

You are configuring a new Windows 10 computer for a user who frequently downloads files from the internet. To reduce the risk of malware, you want to block the execution of downloaded files from the internet until they are scanned by antivirus. Which Windows feature should you enable?