MetroTelworks RF Drive Test Engineer Interview Questions and Answers

Q1. What is mean by testing
Ans. 
Testing is the process of evaluating a system or component to determine if it satisfies specified requirements.
• Testing is done to identify defects or errors in software or hardware.

• It involves executing a system or component with the intent of finding bugs or verifying its functionality.

• Testing can be performed at various levels such as unit testing, integration testing, system testing, and acceptance testing.

• Different...read more
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Q2. Why we are doing testing
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Testing is done to ensure that the software meets the requirements and is of high quality.
• To identify defects and errors in the software

• To ensure that the software meets the specified requirements

• To improve the quality of the software

• To increase customer satisfaction

• To reduce the risk of software failure

• To ensure that the software is reliable and secure
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Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Share details of your previous job.
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Q4. What are your strengths and weaknesses?
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Q5. Tell me about yourself.
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Discussion about Basic Information

Q1. I was applying for CAD engineer so asking about CAD commands and telecommunications. Prepare with your skills.
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Q1. Discussion about Work experience, CTC, work Location.
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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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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?
Ans. 
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. 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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