TTSL Senior Engineer Interview Questions and Answers

Q1. What is function of OSPF?
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Q2. What is the UBR?
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Sdwan, osi layer tcp ,udp,ip addressing,

Q1. SDWAN, ip addressing ,subnetting, osi modle
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Discussing about troubleshooting process in NOC.

Q1. GPON, DWDM, Switch.
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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?
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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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Q1. PlSql based in depth
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Q1. Plsql development based indepth
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Q1. Technical knowledge based
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Q1. Indepth bgv based questions
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Q1. Linux related questions, basics to moderate file system installation commands
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Q1. Salary discuss , joining process,
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2 levels of interview asked on Java Spring boot

2 levels of interview asked on java spring

Q1. Profile discussion, job designation discussion, further opportunities discussion
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Q1. Network engineering questions Spectrum analyser, ITSM tool knowledge, hfc engineering network questions like network outage locating issue and isolating it.
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