CompTIA A+ Question I-28

Which of the following cables is prone to electromagnetic interference?

A. STP
B. PVC
C. Plenum
D. UTP

Correct Answer: D

CompTIA A+ Question I-28

A technician is installing a wireless router to be used as an access point. The company firewall will assign IP addresses to devices on the wireless network. Which of the following settings does the technician need to disable on the wireless router to accomplish this?

A. NAT
B. DMZ
C. PAT
D. DHCP

Correct Answer: D

CompTIA A+ Question I-28

Which of the following precautions should be followed when replacing RAM in a laptop computer? (Select TWO).

A. Remove CMOS battery
B. Follow ESD procedures
C. Remove all power
D. Remove CD-ROM drive
E. Check for liquid contamination

Correct Answer: BC

Explanation:
Before replacing a RAM in a laptop, disconnect all power sources. Wait a few minutes and use an ESD wrist strap or a mat for electrostatic discharge.