Questions: 3.2.4 Practice Questions Question 6 of 10 Time Spent 00:03:06 Back Next Which of the following are characteristics of an MTRJ fiber optic connector? (Select two.) They're called push-in-and-twist connectors. They must never be used with single-mode fiber optic cables. They can be used with multi-mode fiber optic cables. They use a keyed bayonet. They use metal guide pins to ensure accurate alignment.

The answer is the third and fifth options:

• They can be used with multi-mode fiber optic cables.
• They use metal guide pins to ensure accurate alignment.

Explanation for each option:

1. They're called push-in-and-twist connectors.
   This is incorrect. MTRJ connectors are not push-in-and-twist connectors; they are push-pull connectors.

2. They must never be used with single-mode fiber optic cables.
   This is incorrect. MTRJ connectors can be used with both single-mode and multi-mode fiber optic cables, although they are more commonly used with multi-mode.

3. They can be used with multi-mode fiber optic cables.
   This is correct. MTRJ connectors are often used with multi-mode fiber optic cables.

4. They use a keyed bayonet.
   This is incorrect. MTRJ connectors do not use a keyed bayonet; they use a push-pull mechanism.

5. They use metal guide pins to ensure accurate alignment.
   This is correct. MTRJ connectors use metal guide pins to ensure proper alignment of the fibers.

In summary, the correct characteristics of an MTRJ fiber optic connector are that they can be used with multi-mode fiber optic cables and they use metal guide pins for accurate alignment.