Nokia Network Engineer Interview Questions and Answers

I am open to any location that offers growth opportunities and a challenging work environment.

• Open to relocation for the right opportunity

• Prefer locations with strong networking infrastructure

• Interested in locations with tech hubs or opportunities for professional development

My current CCTC is $80,000 per year.

• Current CCTC is $80,000 per year

• CCTC may include salary, bonuses, benefits, etc.

• Negotiable based on experience and qualifications

Border Gateway Protocol

• BGP stands for Border Gateway Protocol

• It is a standardized exterior gateway protocol used to exchange routing information between different autonomous systems on the internet

• BGP helps in determining the best path for data to travel between networks

• It is commonly used by Internet Service Providers (ISPs) and large organizations to connect to multiple networks

• BGP operates on TCP port 179

Routers are networking devices that forward data packets between computer networks.

• Routers operate at the network layer of the OSI model

• They use routing tables to determine the best path for data packets

• Routers can connect different types of networks, such as LANs and WANs

Expected CTC (Cost to Company) for the position

• ECTC stands for Expected Cost to Company

• It includes salary, bonuses, benefits, and any other compensation offered by the employer

• Candidates should provide their expected salary range based on their experience and skills

LAN technology refers to the methods and protocols used to create local area networks for connecting devices within a limited geographical area.

• LAN technology includes Ethernet, Wi-Fi, and Token Ring.

• Ethernet is the most common LAN technology, using CSMA/CD for collision detection.

• Wi-Fi uses wireless signals to connect devices within a LAN.

• Token Ring is a less common LAN technology that uses a token-passing protocol.

• LA...read more

Router technique refers to the method used by a router to determine the best path for forwarding data packets.

• Routing protocols like OSPF, EIGRP, and BGP are used to determine the best path for data packets

• Static routing involves manually configuring the routes on the router

• Dynamic routing allows routers to communicate with each other to determine the best path

• Packet switching is used by routers to forward data packets

The OSI Model defines the functions of each layer in a network communication system.

• Physical layer - transmits raw data bits over a physical medium

• Data link layer - provides error detection and correction, and organizes data into frames

• Network layer - routes data packets between different networks

• Transport layer - ensures reliable data delivery and manages end-to-end communication

• Session layer - establishes, maintains,...read more

TCP/IP model is a conceptual framework used for understanding networking protocols.

• Consists of four layers: Application, Transport, Internet, Link

• Each layer has specific functions and protocols

• Data is encapsulated and decapsulated as it moves through the layers

• Example: HTTP operates at the Application layer, TCP at the Transport layer

IPRAN solution stands for Internet Protocol Radio Access Network, which is a network architecture that combines IP/MPLS and mobile technologies.

• IPRAN solution is used to provide high-speed internet access to mobile users.

• It helps in optimizing network resources and improving network performance.

• Examples of IPRAN solution providers include Cisco, Huawei, and Juniper Networks.

Different types of L2VPN include Ethernet VPN (EVPN), Virtual Private LAN Service (VPLS), and Layer 2 Tunneling Protocol (L2TP).

• Ethernet VPN (EVPN) - Uses BGP as the control plane protocol for distributing MAC addresses across the network.

• Virtual Private LAN Service (VPLS) - Extends a LAN over the network, allowing multiple sites to appear as if they are on the same LAN segment.

• Layer 2 Tunneling Protocol (L2TP) - Creat...read more