Which Connectors Are Needed for Upgrading Firmware on Older KVM Switches?
Question
A technician is upgrading the firmware on an older KVM switch.
The specifications call for a serial port to connect to the computer on one side, and an Ethernet jack to connect to the switch on the other side.
Which of the following connectors does the technician need for this cable? (Choose two.)
A.
RG-9 B.
DB-9 C.
RJ-11 D.
DB-25 E.
RJ-45 F.
BNC.
BE.
Explanations
A technician is upgrading the firmware on an older KVM switch.
The specifications call for a serial port to connect to the computer on one side, and an Ethernet jack to connect to the switch on the other side.
Which of the following connectors does the technician need for this cable? (Choose two.)
A.
RG-9
B.
DB-9
C.
RJ-11
D.
DB-25
E.
RJ-45
F.
BNC.
BE.
The correct answers are B. DB-9 and E. RJ-45.
Explanation: A KVM switch (Keyboard, Video, Mouse) allows a user to control multiple computers from a single keyboard, video monitor, and mouse. When upgrading the firmware on an older KVM switch, a technician will need a special cable that connects to the switch.
The specifications state that the cable should have a serial port on one end to connect to the computer and an Ethernet jack on the other end to connect to the switch. This means that the cable needs to have two different types of connectors: one for serial communication and one for Ethernet communication.
A DB-9 connector is a 9-pin serial port connector that is commonly used for connecting to serial devices such as modems, printers, and KVM switches. It is the most likely connector to be used for the serial port connection in this scenario.
An RJ-45 connector is an 8-pin connector that is commonly used for Ethernet networking. It is the most likely connector to be used for the Ethernet connection in this scenario.
RG-9 and BNC connectors are used for coaxial cables in analog video and radio frequency (RF) applications. They are not suitable for this scenario.
DB-25 connectors are a larger 25-pin version of the DB-9 connector used for serial connections. They are less common and less likely to be used for this scenario.
RJ-11 connectors are 6-pin connectors commonly used for telephone connections. They are not suitable for this scenario.
In conclusion, the technician will need a cable with a DB-9 connector on one end for the serial port connection and an RJ-45 connector on the other end for the Ethernet connection.
