Which of the following cable types is characterized by an insulated core wire covered with a braided shield?
A. STP
B. CAT3
C. UTP
D. RG-59
CompTIA A+ Question C-43
A technician needs to extend the wireless signal in a building. Which of the following should the technician use?
A. Access Point
B. Switch
C. Hub
D. Router
CompTIA A+ Question C-42
Which of the following are characteristics of transferring data using fiber as the medium? (Select TWO).
A. Fiber can transmit data the farthest distance without requiring a repeater
B. Fiber is the least susceptible to EMI
C. Fiber is the most susceptible to changes in temperature and humidity, which can cause varying transmission speeds
D. Fiber can transmit power as well as data, which will lead to cost savings
E. Fiber is the least expensive means of transmitting data
CompTIA A+ Question C-41
Which of the following standards would be used on a wireless router to support speeds up to 150 Mbps?
A. 802.11a
B. 802.11b
C. 802.11g
D. 802.11n
CompTIA A+ Question C-40
A user has a new network printer they want setup in their home. The user wants all their PCs as well as any guests with laptops to be able to print to it. Which of the following connection methods would be the MOST effective for meeting these requirements? (Select TWO).
A. 802.11g
B. USB
C. Ethernet
D. Bluetooth
E. Serial
CompTIA A+ Question C-39
Which of the following cable types deliver a non-digital signal? (Select TWO).
A. HDMI
B. DVI-D
C. Display Port
D. VGA
E. DVI-A
CompTIA A+ Question C-38
After upgrading a customer’s motherboard and CPU, the PC will not boot. The technician can hear a single long beep lasting 4-5 seconds. This beep repeats until the unit is powered off. Which of the following is the MOST likely cause of this alarm?
A. The technician has shorted out the motherboard.
B. The technician has not properly seated the RAM.
C. The technician has not connected the keyboard.
D. The power supply is insufficient for the upgrade.
CompTIA A+ Question C-37
Which of the following is the subnet mask for a Class A IP address?
A. 127.0.0.1
B. 255.0.0.0
C. 255.255.255.0
D. 255.255.255.254
CompTIA A+ Question C-36
Modern laptop screens are much brighter because of advances in which of the following technologies?
A. LED
B. Batteries
C. Inverter
D. Plasma
CompTIA A+ Question C-35
A customer wants a computer for performing a single-threaded task as quickly as possible. Which of the following CPU characteristics is the MOST important?
A. Clock speed
B. Hyperthreading
C. Fan speed
D. Number of cores