Nokia NOC Engineer Interview Questions and Answers

Q1. Routing protocols
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Q1. 2G, 3G, 4G, 5G Architecture
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Q1. Salary package, location, 24*7 shift
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Directly asked some basic questions and then some scenario based questions.

Q1. In this round did not asked expectation of salary, only given salary structure, shift timings and manager details.
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Questions about networking and English

Q1. Questions about technical knowledge of network
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Q2. What is arp? What is HSRP? WHAT IS GLBP? WHAT IS NAT
Ans. 
ARP is a protocol used to map an IP address to a physical MAC address on a local network.
• ARP stands for Address Resolution Protocol.

• It operates at the Data Link Layer of the OSI model.

• ARP is used to resolve IP addresses to MAC addresses.

• It is essential for communication between devices on the same network.

• ARP requests are broadcasted to all devices on the network.

• Example: When a computer wants to send data to another d...read more
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Q1. Tell me about yourself.
Ans. 
I am an experienced NOC Engineer with a strong background in network operations and troubleshooting.
• I have a Bachelor's degree in Computer Science.

• I have worked for 5 years in a large telecommunications company, managing and monitoring network infrastructure.

• I am skilled in using network monitoring tools such as SolarWinds and Wireshark.

• I have experience in troubleshooting network issues, analyzing logs, and implementi...read more
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Q1. What is modulation, tcp/ip, guard band.
Ans. 
Modulation is the process of varying a signal's characteristics to transmit information. TCP/IP is a protocol used for communication between devices. Guard band is a frequency band used to separate two channels.
• Modulation is used in radio communication to transmit information by varying the amplitude, frequency, or phase of a carrier wave.

• TCP/IP is a set of protocols used for communication between devices on a network....read more
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Q1. What is 2g, 3g,4g explain
Ans. 
2G, 3G, and 4G are different generations of mobile network technology.
• 2G stands for second generation and is based on digital technology. It allows for basic voice and text communication.

• 3G stands for third generation and introduced mobile data and internet connectivity.

• 4G stands for fourth generation and offers faster internet speeds and improved data transfer rates.

• Examples of 2G networks include GSM and CDMA. Exampl...read more
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Q1. Tell me about your self
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Q2. Tell me about past experience
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Q3. What is interface.
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Q4. What is MCS and how work.
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Q5. What is rssi and how work RF device on best rssi
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