单项选择题 A client reports to Karen, a technician, that he cannot connect to the Internet. The ipconfig command reveals the below information: Which of the following is the MOST likely cause of the problem?（）

单项选择题 A customer states that they cannot print from their laser printer. The printer displays a ‘Paper Jam’ error. Upon inspection there is no paper jam. The only indication is a clicking sound when the user tries to print. Which of the following is the MOST likely cause?（）

多项选择题 A customer reports that their sound is not working. They state that the speakers workedpreviously. Which of the following should the technician check?（） (Select THREE).