| Exam 640-692 | Question id=213 | Service-related Knowledge |
The pins in RJ-45 are numbered from 1 through 8. With the metal points of the plug facing toward you, pin 1 is the leftmost pin. Which two sets are looped on an RJ-45 T1 loopback plug?
| A. |
Pins 1 and 4 | |
| B. |
Pins 1 and 7 | |
| C. |
Pins 2 and 5 | |
| D. |
Pins 2 and 8 | |
| E. |
Pins 1 and 5 | |
| F. |
Pins 2 and 7 |