Tata Communications Hardware & Networking Engineer 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. Do you know how firewall works
Ans. 
Firewall acts as a barrier between a trusted internal network and untrusted external network, controlling incoming and outgoing traffic based on predetermined security rules.
• Firewall filters network traffic based on rules set by administrators

• It can block or allow traffic based on IP addresses, ports, protocols, etc.

• Firewalls can be hardware-based or software-based

• Examples include Cisco ASA, Palo Alto Networks, and pfS
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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. About my self about my job profile
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Q2. About my career
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Q1. About my total experience
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Q2. About my job work profile
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Q3. About my job profile which is mention in my resume
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Aptitude test test used individual skill and activity. Individual success and ignoring

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. 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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