Quiz on (4lessons)Telephony Systems

What is switching in telephony systems?

• Routing calls through a central office

• Establishing a physical connection

• Multiplexing multiple signals

• Transferring data packets from source to destination

Which method is used in conventional LAN systems?

• Circuit switching

• Packet switching

• Time Division Multiplexing

• Optical circuit switching

What is a characteristic of circuit switching?

• Connectionless communication

• Dedicated path for a single connection

• No fixed bandwidth

• Dynamic routing of packets

What is the first phase of circuit switching?

• Data transfer

• Connection relinquishment

• Connection establishment

• Packet routing

Which of the following is an advantage of circuit switching?

• Guaranteed data rate

• No need for connection establishment

• Dynamic routing

• Lower bandwidth usage

What does FDM stand for?

• Frequency Division Multiplexing

• Frequency Data Management

• Fixed Division Multiplexing

• Fast Data Multiplexing

What is a disadvantage of circuit switching?

• No dedicated channels

• High flexibility in routing

• Low bandwidth requirements

• Long connection setup time

What does PSTN stand for?

• Public Standard Telephone Network

• Private Switched Telephone Network

• Public Switched Telephone Network

• Private Standard Telephone Network

What is the role of a PBX system in a business?

• To provide internet access

• To connect calls directly to the recipient

• To manage user telephone numbers and features

• To establish a dedicated circuit

What is packet switching?

• A connectionless network switching technique

• A method for establishing dedicated circuits

• A connection-oriented network technique

• A type of circuit switching