Networks511CAtest Flashcards
(33 cards)
What is a LAN?
A Local Area Network connecting devices in a small area like an office or home.
What does MAN stand for?
Metropolitan Area Network — covers a city or campus.
Define WAN.
Wide Area Network — spans large geographic areas like countries.
What is a PAN?
Personal Area Network — connects personal devices like phones and Bluetooth headphones.
What is CAN?
Campus Area Network — connects multiple LANs within a university or corporate campus.
Explain SAN.
Storage Area Network — high-speed network for accessing storage devices.
What is SD-WAN?
Software-Defined Wide Area Network — uses software to optimize WAN performance.
What is cloud infrastructure?
The physical and virtual components needed to run cloud computing services.
What are the main components of cloud infrastructure?
- Servers
- Storage
- Networking
- Virtualization
- Management tools
What is the difference between cloud networking and cloud virtual networking?
Cloud networking includes both physical and virtual networks; cloud virtual networking is purely software-defined.
Describe the bus topology.
All devices connected to a single backbone cable. Simple but risky due to single point of failure.
Describe the star topology.
Devices connect to a central hub. Most common and reliable if hub is not overloaded.
Describe the ring topology.
Devices form a loop; data flows in one direction. Less common due to loop risks.
Describe the mesh topology.
Every device connects to every other. Highly reliable but complex/expensive.
What is a hybrid topology?
Combination of two or more topologies. Used for flexibility in enterprise settings.
What is IaaS?
Infrastructure as a Service — rent servers, storage, and networks.
What is PaaS?
Platform as a Service — development environment including runtime and databases.
What is SaaS?
Software as a Service — fully built applications accessed via web or app.
What is a public cloud?
Shared resources owned by third-party providers like AWS or Google Cloud.
What is a private cloud?
Dedicated to one organization — often used in finance or healthcare.
What is a hybrid cloud?
Combines public and private clouds — offers flexibility and compliance.
What is a community cloud?
Shared by organizations with similar goals — e.g., government or education sectors.
What is the Application Layer (Layer 7)?
The layer where users interact — e.g., browsers, apps.
What is the Presentation Layer (Layer 6)?
Responsible for encryption, compression, and translation.
