CS 3 Flashcards
What are internet protocol addresses?
Unique number for identifying devices online.
What is a sub-network and subnet mask?
A sub-network divides a network, and a subnet mask identifies network and device parts of an IP address.
What is the Dynamic Host Configuration Protocol (DHCP)?
Assigns IP addresses automatically.
What is the Domain Name System (DNS)?
Converts domain names to IP addresses.
What is a Uniform Resource Identifier (URI) and a Uniform Resource Locator (URL)?
A URI identifies a resource, and a URL provides the address to access it
What does a node mean in a computer network?
A device or connection point in a network.
What is a MAC address?
A unique hardware address for devices.
What is the difference between a network repeater and a hub?
Repeaters boost signals; hubs connect multiple devices.
What is the difference between a network switch and a router?
Switch connects devices in one network; network connects multiple networks.
What is the importance of a network firewall?
Blocks unauthorized access and protects data.
What is the difference between a local and a wide area network?
LAN is local and fast; WAN covers large areas but is slower.
Why are virtual private networks important?
Protects privacy, encrypts data, and bypasses restrictions.
How does an intranet differ from the internet?
Intranet is private; the internet is public.
Why is bandwidth an important consideration for telecommunications?
Determines data transfer speed.
What is the difference between data transfer rate and network throughput?
Transfer rate is theoretical; throughput is actual performance.
How does network surveillance relate to security?
Monitors activity to detect and prevent threats.
What are the technologies for long-distance communication?
Radio, satellite, fiber optics, and microwave.
What are the main parts of a basic telecommunication system?
Transmitter, transmission medium, and receiver.
What are the essential parts of a telephone device?
Microphone, speaker, ringer, keypad, and base unit.
How have telephone exchange services evolved?
From manual operators to digital and VoIP systems.
What does VoIP mean in telephony?
Internet-based voice calls.
