Tata Communications Transformation Services NOC Support Engineer L1 Interview Questions and Answers

Q1. 1.what is the port no used by DHCP?
Ans. 
The port number used by DHCP is 67 (server) and 68 (client).
• Port 67 is used by DHCP server to listen for client requests

• Port 68 is used by DHCP client to send requests to the server

• DHCP uses UDP protocol for communication
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Q2. 2.OSPF states ? 3.VTP Pruning? 4.what is DHCP? 5.what is Reverse ARP and how it is different from DHCP?
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Q3. 3.They will give you Ip address and mask you need to tell the pools of Ip's?
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Q4. 4.What is ISIS and MDLS
Ans. 
ISIS and MDLS are protocols used in networking for routing and network management.
• ISIS (Intermediate System to Intermediate System) is a routing protocol used to exchange routing information between network devices.

• MDLS (Management Data Input/Output Link Service) is a protocol used for network management tasks such as monitoring and configuration.

• ISIS is commonly used in large enterprise networks and internet service p...read more
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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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Q1. SIP,IMS,SS7,call flow of sip and ims,ip,
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Q2. FTTH questions,Ont ,bont pri, analog, bri
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Q1. Salary negotiation, reason for leaving current job, general interview questions
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Q1. Be honest with your years of experience. All information you share will be verified at the time of joining.
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Second round is aptitude test

Q1. Tel me about your company and introduce yourself
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Q1. What is networking?
Ans. 
Networking is the practice of connecting computers and other devices to share resources and information.
• Networking involves the use of hardware such as routers, switches, and cables to create a network.

• It also includes the use of software protocols like TCP/IP to facilitate communication between devices.

• Networking allows devices to share resources such as files, printers, and internet connections.

• Examples of networking
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Q2. What is DHCP,DNS,VLAN,size of IPv4 and IPv6,
Ans. 
DHCP assigns IP addresses, DNS translates domain names to IP addresses, VLAN separates network traffic, IPv4 has 32-bit addresses, IPv6 has 128-bit addresses.
• DHCP (Dynamic Host Configuration Protocol) assigns IP addresses to devices on a network dynamically.

• DNS (Domain Name System) translates domain names to IP addresses.

• VLAN (Virtual Local Area Network) separates network traffic into different segments.

• IPv4 has 32-bit...read more
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Q1. Osi layer,dhcp snooping, tcp/ip, basic questions about is-is,ospf,bgp, different between default vlan and native vlan, Stp, cisco switch models, ip address types, telnet, ssh, syslog, snmp, vpn, radius ser...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. About your self information answer
Ans. My name is Snehal I am from pimpri natepute live at pune kalewadi I have completed computer diploma in abhinav education society my strength are I am self motivated person,and good communication skill my shirt term goal is to achieve good possion in reputed company
Answered by Snehal Shivaji Karande
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What is your name ans

Name, experience, expected CTC

Q1. Complete switching Understanding the concept of routing and subnetting
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Q1. Tell me about yourself
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