Black Box Corporation Network Engineer Interview Questions, Process, and Tips

The OSI model consists of 7 layers that define the functions of a network. Each layer has specific responsibilities in handling data packets.

• Physical Layer: Deals with physical connections and transmission of raw data bits.

• Data Link Layer: Manages data frames and error detection/correction.

• Network Layer: Handles routing and logical addressing.

• Transport Layer: Ensures reliable data transfer between devices.

• Session Layer...read more

OSPF is a routing protocol that uses link-state algorithm to determine the best path for routing packets.

• OSPF routers exchange link-state advertisements (LSAs) to build a topological database of the network.

• Each router calculates the shortest path tree to all destinations using Dijkstra's algorithm.

• OSPF uses cost metrics to determine the best path, with lower costs indicating faster links.

• LSAs are flooded throughout th...read more

RIP, EIGRP, STP, RSTP, MSTP, LAG are networking protocols and technologies used in network engineering.

• RIP (Routing Information Protocol) is a distance-vector routing protocol.

• EIGRP (Enhanced Interior Gateway Routing Protocol) is a Cisco proprietary routing protocol.

• STP (Spanning Tree Protocol) prevents loops in Ethernet networks.

• RSTP (Rapid Spanning Tree Protocol) is an updated version of STP for faster convergence.

• MS...read more

The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven different layers.

• The OSI model stands for Open Systems Interconnection model.

• It helps in understanding how data is transferred between devices in a network.

• Each layer has specific functions and interacts with adjacent layers.

• Examples of layers include Physical, Data Link, Network, Transport, Ses