The header navigation menu is a component that allows candidates to navigate through different pages on your career site. It is recommended to include links to Category pages and Content pages in the header navigation menu, as these pages provide relevant information and opportunities for the candidates. Category pages are pages that display job requisitions based on predefined criteria, such as location, function, or industry. Content pages are pages that display custom content, such as company culture, benefits, testimonials, or events. By including links to these pages, you can showcase your employer brand, attract candidates to your job openings, and enhance the candidate experience.
Links to social networks and top job searches are not recommended to be included in the header navigation menu, as they are not essential for the candidate journey. Links to social networks can be added to the footer or the sidebar of your career site, as they are secondary sources of information and engagement. Links to top job searches can be added to the homepage or the search results page of your career site, as they are dynamic and contextual. Adding too many links to the header navigation menu can clutter the user interface and distract the candidates from the main content and actions. Reference:
SAP SuccessFactors Recruiting: Candidate Experience 2H/2023
SAP SuccessFactors Recruiting: Candidate Experience Academy
HR832 - SAP SuccessFactors Recruiting: Candidate Experience Administration

Option A is correct because asking people with disabilities to test the site is a leading practice to ensure that the website is accessible. People with disabilities can provide valuable feedback and insights on how the site works for them, what barriers or challenges they face, and what improvements can be made to enhance their user experience1.
Option B is incorrect because asking people in your IT department to test the site is not a sufficient practice to ensure that the website is accessible. People in your IT department may not have the expertise or the perspective of people with disabilities, and they may not be able to identify or address all the accessibility issues that may arise on the site1.
Option C is correct because using an online accessibility checker, such as WAVE, to test the site is a leading practice to ensure that the website is accessible. An online accessibility checker is a tool that can automatically scan and evaluate the site for common accessibility errors, such as missing alt text, low contrast, broken links, and invalid code. It can also provide suggestions and recommendations on how to fix the errors and improve the site's accessibility2.
Option D is correct because reviewing the site using assistive technology such as a screen reader like JAWS or NVDA is a leading practice to ensure that the website is accessible. A screen reader is a software that converts text and images on the screen into speech or braille output for people who are blind or have low vision. Reviewing the site using a screen reader can help you understand how the site is perceived and navigated by people who rely on this technology, and what issues or difficulties they may encounter on the site.
Option E is incorrect because carefully reviewing the site's code to look for issues with tagging and other elements is not a reliable practice to ensure that the website is accessible. While reviewing the site's code can help you check for some technical aspects of accessibility, such as semantic markup, headings, labels, and roles, it cannot guarantee that the site is accessible for all users and devices. Accessibility is not only about code, but also about design, content, functionality, and usability1.
Reference:
1: SAP Certified Application Associate - SAP SuccessFactors Recruiting: Candidate Experience 1H/2023 | SAP Training Certification
2: Get certified in SAP SuccessFactors Recruiting: Candidate Experience 1H/2023 | SAP Learning
3: Web Accessibility Evaluation Tools List | W3C
4: WAVE Web Accessibility Evaluation Tool
[5]: Screen Readers | WebAIM

According to the SAP SuccessFactors Recruiting: Candidate Experience Administration course1, the actions you need to take to facilitate reporting on which candidates arrived at the CSB site from the corporate site are:
Deliver source-coded backlinks so that your customer can replace all links from their externally-hosted sites to their CSB site. This means that you need to add a source parameter to the URL of each link that points to the CSB site, such as ?source=corporate. This will allow the CSB site to track the source of the traffic and report it in the Advanced Analytics dashboard1.
Submit the Referral Engine Task support ticket after moving your customer's CSB site to production. This is a mandatory step that enables the Referral Engine feature, which is a tool that allows you to create and manage referral campaigns for your CSB site. The Referral Engine also provides reporting on the referral sources and conversions of the candidates who applied through the CSB site1.
Adding a campaign code to all XML job feeds that you create for your customer is not an action you need to take to facilitate reporting on which candidates arrived at the CSB site from the corporate site. This is because the campaign code is used to track the performance of the job postings on external platforms, such as job boards or social media, and not on the corporate site. The campaign code is also optional and not required for the XML job feeds to work23.
Recommending that your customer opt-in for the Organic Network is not an action you need to take to facilitate reporting on which candidates arrived at the CSB site from the corporate site. This is because the Organic Network is a feature that allows your customer to leverage the existing traffic on their CSB site to promote their jobs to other relevant candidates, and not to track the traffic from their corporate site. The Organic Network is also optional and not required for the CSB site to function4.

The search component allows customers to configure picklist searches that can be used as filters by candidates. The picklist search is dynamically populated with values from the career site's active jobs, which means that only relevant values will be displayed. The picklist search gives customers access to 18 fields that they can add as search filters, such as job category, location, job level, etc. The picklist search does not support the use of foundation/generic objects, which means that customers cannot use custom fields or objects as filters. The picklist search is not automatically populated with all picklist values configured in Picklist Center, which means that customers have to map the picklist values to the corresponding fields in the job requisition template. Reference: Career Site Builder Pages and Components, Career Site Builder Global Settings and Global Styles, HR832 - SAP SuccessFactors Recruiting: Candidate Experience Administration

Footer links are important for SEO because they help search engines crawl and index your site, as well as provide easy navigation for users. The Careers Home and View All Jobs links are recommended on every Career Site Builder site because they allow users to access the main landing page and the job search page from any page on the site. These links also help search engines understand the structure and content of your site, and increase the visibility and ranking of your site in search results. Reference: SAP SuccessFactors Recruiting: Candidate Experience Administration, Unit 4: Career Site Builder Global Settings and Global Styles, Lesson: Global Settings, Slide 10.