Certification Question of the Day [QOTD] for CompTIA A+ [CompTIA A+] [Q001 A+] [ANSWER]

QUESTION – Which of the following are examples of a male serial connection? (Choose all that apply).

A.   

B.    

C.    

D.   

E.   

F.   

G.   

 

Answer and Explanation:

The correct answers for this question are choices A and C.

“A” represents a D-sub 9 Connector which is commonly used in serial ports (RS-232). See D-sub 9 Connector Pinout for additional information.

“C” represents a D-sub 25 Connector which is also used in serial ports (RS-232). See RS232 serial cables pinout for additional information

“B” represents a parallel port input also known as a printer port or Centronics port. The IEEE 1284 standard defines the bi-directional version of the port, which allows the transmission and reception of data bits at the same time. For more information please see the Wikipedia post “parallel port”

“D” in the D-sub 9 female connector. Please see “D-sub 9 Connector” for more information.

“E” is the Super Video Graphics Array (SVGA) female input that can be found on most PC and laptops today. Please see the Wikipedia, the free encyclopedia article titled “Super Video Graphics Array” for more information.

“F” and “G” are Centronics connectors. “F” is the female connection and “G” is the male. Wikipedia, the free encyclopedia article titled “Centronics” for more information. The IEEE 1284 article is also a good review.