Vedang Cellular Services RF Engineer Interview Questions and Answers

Q1. Basic questions on antenna parameters.
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Q2. Design aspects of Antenna array.
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Antenna array design involves elements such as element spacing, beamforming techniques, and array geometry.
• Element spacing determines the directivity and beamwidth of the array.

• Beamforming techniques like phase shifting and amplitude tapering help steer the beam in a desired direction.

• Array geometry, such as linear, planar, or conformal arrays, affects the radiation pattern and polarization.

• Antenna array design also co...read more
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Q1. Theoretical understanding on base station antenna.
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Q2. How will you get the tilt in the base station antenna?
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The tilt in the base station antenna can be adjusted by physically changing the angle of the antenna.
• Tilt can be adjusted by loosening the bolts on the antenna mount and manually changing the angle of the antenna

• Specialized tools like tilt meters can be used to ensure the correct angle is achieved

• Remote electrical tilt (RET) systems can also be used to adjust the tilt of the antenna electronically
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Fibre optic network & router network configuration

Q1. Communication skills in fibre optic network
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String programming manual testing jeans

Q1. String programming questions
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Hackerrank Based coding round

Q1. Magic Square coding was requested
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Q2. Pattern matching of braces
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Pattern matching of braces involves checking if the opening and closing braces are properly nested.
• Use a stack data structure to keep track of opening braces

• Iterate through the string and push opening braces onto the stack

• When a closing brace is encountered, pop from the stack and check if it matches the corresponding opening brace

• If stack is empty at the end and all braces are matched, the pattern is valid
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Q1. Pcap analysis and log analysis
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Q2. Feature testing
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Q1. Kubernetes and docker
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Q2. Amazon web service
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Q1. 100k feet over view
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A high-level overview of a topic or project, typically focusing on key points and goals.
• Summarize the main objectives and goals of the project

• Highlight key milestones and deliverables

• Provide a brief overview of the team structure and roles

• Discuss any potential challenges or risks

• Outline the overall impact and benefits of the project
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Q2. Technical overview of all technology
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Q1. Difference between concepts
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Difference between concepts refers to the distinctions or contrasts between two or more ideas, theories, or principles.
• Concepts are abstract ideas or mental representations, while differences are variations or distinctions between them.

• Understanding the difference between concepts helps clarify their meanings and applications.

• For example, the difference between velocity and speed in physics is that velocity includes di
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Q2. Basic understanding of concepts and technology
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Q1. Salary expectation
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Q2. Why you want to jump
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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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