Explanation
To show a component that shows LinkedIn data only to sales users when they are on their mobile phones, the administrator should filter the component visibility with two conditions:
User > Profile > name = sales User, which checks if the user's profile name is "sales User" Form Factor = phone, which checks if the user's device is a phone Filtering with view or role will not achieve the desired result. References:
https://help.salesforce.com/s/articleView?id=sf.app_builder_page_visibility_rules.htm&type=5

Explanation
To provide a summary of org's security health, an administrator should run a Health Check that compares org's settings against baseline settings defined by Salesforce Security Baseline Standard or industry standards such as CIS (Center for Internet Security) Benchmark Standard. Health Check generates an overall health score based on how org's settings match with baseline settings for various security categories such as Password Policies, Network Access, Session Settings etc. Health Check also provides recommendations for improving org's security health score by adjusting settings that do not match with baseline settings. Changing Org-Wide Default to private, turning on Event Monitoring, or downloading user login data will not provide a summary of org's security health. References:
https://help.salesforce.com/s/articleView?id=sf.security_health_check.htm&type=5

Explanation
To display only the proper lead sources based on the product category chosen, an administrator should create a dependency between the Product Category field and Lead Source field on Lead object. A dependency is a relationship between two picklist fields that restricts the values available in one picklist based on the value selected in another picklist. For example, an administrator can create a dependency that shows only Online Store and Social Media as lead sources if Product Category is Shoes, but shows only Trade Show and Magazine as lead sources if Product Category is Apparel. Creating a page layout for each category, creating business processes and record types for each category, or creating a single business process with record types for each category will not display only the proper lead sources based on the product category chosen.
References: https://help.salesforce.com/s/articleView?id=sf.customize_dependent.htm&type=5

Explanation
Big Deal Alerts allow you to notify users when an opportunity reaches a certain amount or probability.
References: https://help.salesforce.com/s/articleView?id=sf.forecasts3_big_deal_alerts.htm&type=5

Explanation
Record types are a way to assign different page layouts and picklist values to different users based on their business needs. To use two different page layouts for customer and partner accounts, create one record type for each account type and assign them to the appropriate page layouts and profiles. References:
https://help.salesforce.com/s/articleView?id=sf.customize_recordtype.htm&type=5