Which of the following well-known service ports/services do not have to be disabled, because they do not serve as a security risk if left open?

You are the Administrator in charge of the Certkiller servers and are in the process of configuring a tape backup using QIC cartridges and the new Certkiller trainee wants to know how much data could be backed up when using the QIC-3020 specification with 0.315-inch?

You are the Administrator in charge of the Certkiller servers and are in the process of configuring a tape backup using QIC cartridges and the new Certkiller trainee wants to know how much data could be backed up when using the QIC-3020 specification with 0.25-inch?

You are the Administrator in charge of the Certkiller servers and are in the process of configuring a tape backup using QIC cartridges and the new Certkiller trainee wants to know how many tracks are present when using the QIC-3020 specification?

You are the Administrator in charge of the Certkiller servers and are in the process of configuring a external SCSI backplane which will be equipped with external SCSI drives, you want to know from the new Certkiller trainee how much external devices can SCSI-1 handle?

You are the Administrator in charge of the Certkiller servers and are in the process of configuring a tape backup using Travan cartridges and the new Certkiller trainee wants to know how much storage space would you have if you use the Travan TR-1 specification in native mode?

You are the Administrator in charge of the Certkiller servers and are in the process of configuring a external SCSI backplane which will be equipped with external SCSI drives, you want to know from the new Certkiller trainee how much external devices can SCSI-2 handle?

You are the Administrator in charge of the Certkiller servers and are in the process of configuring a tape backup using Travan cartridges and the new Certkiller trainee wants to know how much storage space would you have if you use the Travan TR-2 specification in native mode?

You are the Administrator in charge of the Certkiller servers and are in the process of configuring a external SCSI backplane which will be equipped with external SCSI drives, you want to know from the new Certkiller trainee how much external devices can SCSI-3 handle?

You are the Administrator in charge of the Certkiller servers and are in the process of configuring a tape backup using Travan cartridges and the new Certkiller trainee wants to know how much storage space would you have if you use the Travan TR-3 specification in native mode?