A switching system within a LATA or market area where customer lines are terminated for interconnection to other trunks.

A switching system within a LATA or market area where customer lines are terminated for interconnection to other trunks.

• A. Local Loop
• B. Twisted Pair
• C. End Office or Class 5 Office
• D. Facilities

Answer: (C)

The concept here is the End Office, also known as the Class 5 Office. This is the local central office within a LATA where subscriber lines terminate and are connected to interoffice trunks. In practical terms, the End Office is the switching system that takes the local lines coming from customers over the local loop and routes calls to other switches through trunks to reach other parts of the network or the toll/carrier network. The Local Loop is simply the copper pair from the customer to the switch, not the switch itself. Twisted Pair is a type of cabling, and Facilities refers to broader network infrastructure. So the description points to the End Office/Class 5 Office as the switching system described.

The concept here is the End Office, also known as the Class 5 Office. This is the local central office within a LATA where subscriber lines terminate and are connected to interoffice trunks. In practical terms, the End Office is the switching system that takes the local lines coming from customers over the local loop and routes calls to other switches through trunks to reach other parts of the network or the toll/carrier network. The Local Loop is simply the copper pair from the customer to the switch, not the switch itself. Twisted Pair is a type of cabling, and Facilities refers to broader network infrastructure. So the description points to the End Office/Class 5 Office as the switching system described.