Network Architecture
Everything on SkillVeris tagged Network Architecture — collected across the glossary, study notes, blog, and cheat sheets.
11 resources across 1 library
Interview Questions(11)
What is the Physical Layer (OSI Layer 1)?
The Physical layer is OSI Layer 1 — it defines how raw bits (1s and 0s) are converted into actual signals (electrical voltage, light pulses, or radio waves) an…
What is the Data Link Layer (OSI Layer 2)?
The Data Link layer is OSI Layer 2 — it packages raw bits from the Physical layer into structured frames, adds MAC addresses for local delivery, and detects (t…
What is the Network Layer (OSI Layer 3)?
The Network layer is OSI Layer 3 — it is responsible for logical addressing (IP addresses) and routing, deciding the best path to move a packet from a source h…
What is the Transport Layer (OSI Layer 4)?
The Transport layer is OSI Layer 4 — it manages end-to-end communication between applications on two hosts, using port numbers to distinguish processes and pro…
What is the Session Layer (OSI Layer 5)?
The Session layer is OSI Layer 5 — it establishes, manages, synchronizes, and terminates the communication session between two applications, keeping track of w…
What is SD-WAN (Software-Defined WAN)?
SD-WAN (Software-Defined Wide Area Network) is an approach to managing WAN connectivity that uses centralized software control to intelligently route traffic a…
What is Software-Defined Networking (SDN)?
Software-Defined Networking (SDN) is an architecture that separates the network’s control plane (deciding how traffic should flow) from its data plane (actuall…
What is Network Function Virtualization (NFV)?
Network Function Virtualization (NFV) is an approach that replaces dedicated hardware network appliances — firewalls, load balancers, routers — with software i…
Forward Proxy vs Reverse Proxy: What is the Difference?
A forward proxy sits in front of clients and hides the client’s identity from the servers it connects to, while a reverse proxy sits in front of servers and hi…
How Would You Design Zoom?
Design Zoom around a Selective Forwarding Unit (SFU) media server model: each participant sends one encoded video/audio stream up to a nearby SFU, and the SFU…
What Is Edge Computing Architecture?
Edge computing architecture processes data physically close to where it is generated or consumed — on devices, local gateways, or nearby points of presence — i…