Linkquest Telecom Service Engineer Interview Questions and Answers

Q1. Basic python questions
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Q1. About your profile and project.
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Q1. What is BGP, MPLS?
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BGP (Border Gateway Protocol) is a routing protocol used to exchange routing information across the Internet. MPLS (Multiprotocol Label Switching) is a technique for speeding up network traffic flow.
• BGP is used to make core routing decisions on the Internet.

• MPLS is used to speed up network traffic flow by allowing routers to make forwarding decisions based on labels instead of IP addresses.

• BGP operates between differen...read more
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Q2. What is the use of networking in a company?
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Networking in a company allows for communication, data sharing, resource sharing, and collaboration among employees and departments.
• Facilitates communication between employees, departments, and branches

• Enables sharing of resources such as printers, servers, and internet connection

• Allows for centralized data storage and access

• Facilitates collaboration on projects and tasks

• Enhances security through network monitoring and
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Q3. How would you define ports of a Router?
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Ports of a router are physical connection points that allow devices to connect to the network.
• Ports on a router can include Ethernet ports, USB ports, and WAN ports.

• Each port serves a specific function, such as connecting a computer or printer to the network.

• Routers may have different types and numbers of ports, depending on the model and manufacturer.

• Ports can be used for wired or wireless connections, depending on th
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Q1. Situation based question where detailed explanation is needed.
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Q2. What was the last task you have resolved?
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Q1. How many people directly reports to you?
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Q2. What would be the notice period you need to seve?
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Sdwan, osi layer tcp ,udp,ip addressing,

Q1. SDWAN, ip addressing ,subnetting, osi modle
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Q1. Basic concepts of VOIP and trunk configuration. Need to know ongoing voip trends in the market. Teams is budding platform and would be great to have Skype for business background
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Q1. Why do you want to join Tata?
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Q1. BGP MPLS QOS OSPF
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Q2. Work profile in last company
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I worked as a Senior Engineer in my previous company.
• Led a team of engineers in developing and implementing new software solutions

• Collaborated with cross-functional teams to ensure project success

• Designed and implemented scalable and efficient code

• Participated in code reviews and provided constructive feedback

• Mentored junior engineers and facilitated their professional growth
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Q1. Salary discussion for role
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Hacker rank test was given. 30 mcq and 1 coding test. Test duration is 1 hour. Core java and spring boot questions were covered.

Q1. Core Java, spring annotations, hashmap internal working, exception handling, working of rest controller, Java 8 features, code using streams api, multithreading concepts
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Q1. Microservice architecture, working of spring Mvc, communications between microservice, actuator, swagger, why microservice is implemented, spring vs spring boot, design patterns used, questions related to ...read more
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2 levels of interview asked on Java Spring boot

2 levels of interview asked on java spring

Q1. What is vrrp and harp and how it functions?
Ans. 
VRRP (Virtual Router Redundancy Protocol) and HARP (High Availability Redundancy Protocol) are protocols used for providing redundancy in network routing.
• VRRP is used to provide a virtual IP address that multiple routers can share, ensuring high availability in case of router failure.

• HARP is a proprietary protocol developed by Cisco that also provides redundancy by allowing multiple routers to share a virtual IP addres...read more
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Q2. What is router and firewall and state difference?
Ans. 
A router is a networking device that forwards data packets between computer networks, while a firewall is a security system that monitors and controls incoming and outgoing network traffic.
• Router directs traffic between different networks based on IP addresses.

• Firewall filters network traffic based on predetermined security rules.

• Routers operate at layer 3 (network layer) of the OSI model, while firewalls operate at la...read more
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Q3. What is dwdm and it's components?
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DWDM stands for Dense Wavelength Division Multiplexing, a technology used in fiber optic communications.
• DWDM is a technology that allows multiple data signals to be transmitted simultaneously over a single fiber optic cable.

• Components of DWDM include lasers, multiplexers, demultiplexers, optical amplifiers, and dispersion compensators.

• DWDM systems use different wavelengths of light to carry multiple data streams, incre...read more
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Q4. Osi reference model explanation?
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The OSI reference model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven distinct layers.
• The OSI model stands for Open Systems Interconnection model.

• It helps in understanding how different networking protocols work together.

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

• Examples of layers include physical layer, data link layer, net
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