CompTIA認(rèn)證考試PD0-001單項選擇題每日一練(2019.01.11)

來源：考試資料網(wǎng)

1 Which of the following failed components would be responsible for the fuser unit not heating properly？（）

2 Using the CMYK color model， the color purple is produced by combining cyan and which other color？（）

3 Which of the following devices can route electrical signals only when activated by an external control signal？（）

4 How should a service representative provide closure at the end of a call for a client？（）

5 Scheduled preventative maintenance visits should be carried out：（）