Hi Manpreet,
While thanking members for their contributions, I would like to provide brief sequence-wise replies to your queries as below:
A.1: Not true.
A.2: No, they are entirely different.
In Skip Level meetings, an intermediary level of hierarchy is necessarily left out, which is not the case with Round Table Meetings. Additionally, the latter generally involves opposing/competing/allied teams with a diverse participant cross-section.
A.3: Senior managers (who can also be CEO/Directors) and the team. The direct reporting managers are excluded.
A.4: There is generally no set frequency; however, minimum numbers can be stipulated. Normally, it varies from quarterly to monthly depending on the operational state.
The meeting with a Reviewing Officer (who is a notch above the Reporting Officer) during Performance Appraisal constitutes both a Skip and a one-to-one meeting.
A.5: Apart from Performance Appraisal Discussions, there can be several instances calling for one-to-one meetings.
If the above has helped to clear all your doubts on the topic, I would consider my efforts well rewarded.
Warm regards.