Telecommunications Flashcards
What is the primary function of telecommunications?
To transmit information over distances for communication.
True or False: Telecommunications only refers to voice communication.
False
Fill in the blank: A __________ is a device that converts electrical signals into sound.
telephone
What does the term ‘bandwidth’ refer to in telecommunications?
The maximum data transfer rate of a network or internet connection.
Which of the following is NOT a type of transmission medium? A) Copper wire B) Fiber optic cable C) Microwave B) Water
D) Water
What is the difference between analog and digital signals?
Analog signals are continuous, while digital signals are discrete.
True or False: A modem is used to modulate and demodulate signals for transmission over telephone lines.
True
What is the role of a router in a network?
To direct data packets between different networks.
What does VoIP stand for?
Voice over Internet Protocol
Fill in the blank: __________ is a protocol used for transmitting data over the internet.
TCP/IP
What is a network topology?
The arrangement of different elements (links, nodes, etc.) in a computer network.
Which technology allows multiple signals to share the same medium?
Multiplexing
True or False: The higher the frequency of a signal, the greater its potential bandwidth.
True
What is the purpose of a firewall in telecommunications?
To protect a network by controlling incoming and outgoing traffic.
Which of the following is a wireless communication technology? A) DSL B) Wi-Fi C) Ethernet D) Fiber optic
B) Wi-Fi
What is latency in telecommunications?
The delay before a transfer of data begins following an instruction.
Fill in the blank: __________ is the process of converting data into a coded format for secure transmission.
Encryption
What is a satellite communication system?
A system that uses satellites to transmit signals to and from Earth.
True or False: Fiber optic cables transmit data using electrical signals.
False
What is the primary advantage of fiber optic communication?
Higher bandwidth and faster data transmission over long distances.
What does the acronym GSM stand for in mobile telecommunications?
Global System for Mobile Communications
Which layer of the OSI model is responsible for end-to-end communication?
Transport layer
What is the significance of the term ‘latency’ in data transmission?
It affects the time it takes for data to travel from source to destination.
Fill in the blank: A __________ connects multiple devices within a local area network (LAN).
switch
