Exam N10-008 Topic 3 Question 835 Discussion

* SFP stands for Small Form-factor Pluggable, which is a compact, hot-swappable network interface module that can be used for both telecommunication and data communications applications1.
* SFP transceivers can support different types of media and interfaces, such as copper or fiber cables, and have different data rates and distances1.
* Depending on the type of cable used, SFP transceivers feature different connectors. Generally speaking, SFP, SFP+ and SFP28 modules will use either LC or RJ45 connectors, depending on whether the cable is copper or fiber2.
* LC stands for Lucent Connector, which is a small form-factor fiber-optic connector that has a 1.25 mm ferrule and a push-pull coupling mechanism3. LC connectors are widely used for SFP transceivers that operate on fiber-optic cables14.
* RJ45 stands for Registered Jack 45, which is a standard connector for twisted pair copper cables that has eight pins and a modular design3. RJ45 connectors are used for SFP transceivers that operate on copper cables, such as 1000BASE-T SFP14.
* MT stands for Mechanical Transfer, which is a type of fiber-optic connector that has multiple fibers aligned in a ferrule and a pin-and-guide-hole alignment mechanism3. MT connectors are used for high-density applications, such as QSFP transceivers that operate on fiber-optic cables2.
* F-type stands for Female Type, which is a coaxial cable connector that has a screw-on design and a
75-ohm impedance3. F-type connectors are used for cable television, satellite television, and other radio frequency applications3.
* Therefore, the correct answer is B. LC, because it is the most common connector for SFP transceivers that operate on fiber-optic cables, which is the case in the question.
References:
* 1: Small Form-factor Pluggable - Wikipedia
* 4: Cisco SFP Modules for Gigabit Ethernet Applications Data Sheet
* 2: SFP & QSFP Transceivers Explained - Cable Intelligence
* 3: SFP Connector Types & Wiki - QSFPTEK