Asif Dasl wrote: »
The port numbers you need to know are on the objectives PDF on the CompTIA website. As Cisco Inferno says DNS uses UDP:53 for queries and TCP:53 for zone transfers.
Plantwiz wrote: »
Repetition is not a punishment method, it is one of many methods of study.
There will always be areas of a particular topic that are less appealing than some others, if you find it a chore, than perhaps you have not found your true calling?
That stuff that many complain about "memorizing" and wasting time "studying" is what makes a good tech great and a "let me google that..." Tech just okay. Time is money, and personally, I do not have time to look up small details, some stuff is simply worth knowing, so I can get on with the task.