Explanation
IP address restrictions allow you to prevent users from accessing Salesforce from outside of their network.
You can set IP address restrictions on the profile level or globally for the org. To enforce IP restrictions for API logins, you must select Enforce Login IP Ranges on Every Request in Session Settings.
References: https://help.salesforce.com/s/articleView?id=sf.security_networkaccess.htm&type=5
https://help.salesforce.com/s/articleView?id=sf.security_enforce_ip_ranges.htm&type=5

Explanation
The Assignment Rule checkbox is a checkbox that appears on manual case creation pages when assignment rules are defined for cases. The Assignment Rule checkbox determines whether or not to apply assignment rules to manually created cases. If the Assignment Rule checkbox is selected by default, then any manually created cases will be assigned according to assignment rules instead of being owned by the agent creating them. To prevent this from happening, an administrator can either deselect the Assignment Rule checkbox when creating cases manually; or change the default setting for this checkbox under setup by selecting or deselecting Use active assignment rules by default. References:
https://help.salesforce.com/s/articleView?id=sf.customize_casesupport_assign.htm&type=5

Explanation
A scheduled flow is a type of flow that runs at scheduled times on batches of records that meet certain criteria.
It can be used to count the number of open cases associated with each account and update the account with this value every Friday evening by using an assignment element to loop through the accounts and cases and assign the count value to a field on the account record. Using a record trigger flow, a scheduled process builder, or a roll-up summary field are not suitable options for this requirement because they would not run at scheduled times or on batches of records; they would run every time a record is created or updated, which may not reflect the accurate count of open cases at the end of each week. References:
https://help.salesforce.com/s/articleView?id=sf.flow_concepts_scheduled.htm&type=5

Explanation
Dynamic dashboards allow you to display data according to the security settings of the running user. If users have different access levels to data on dashboards, you can use dynamic dashboards to show them only what they are allowed to see.
References: https://help.salesforce.com/s/articleView?id=sf.dashboards_dynamic.htm&type=5

Explanation
To display the screen flow, the administrator should create a tab and add the screen flow to the page. The administrator can also use a flow element and add the screen flow to the record page.
The other options are not relevant to this scenario. Adding the flow in the utility bar of the console will not display the screen flow. Installing an app from the AppExchange is not necessary to display the screen flow.
Here are the steps on how to create a tab and add the screen flow to the page:
Go to Setup > Tabs.
Click New.
Enter a name and label for the tab.
Select the Screen Flow tab type.
Select the screen flow that you want to display.
Click Save.
Here are the steps on how to use a flow element and add the screen flow to the record page:
Go to Setup > Customize > Lightning App Builder.
Select the record page that you want to add the screen flow to.
Click Edit.
Drag the Flow element from the Palette to the canvas.
Select the screen flow that you want to display.
Click Save.