Ericsson FME 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. Tell us about yourself and your family?
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Q2. Tell us about your strength
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Q3. Tell us about your weakness
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Q1. What is 2G Technology
Ans. 
2G technology refers to second-generation mobile network technology that allows for digital voice and limited data transmission.
• 2G technology was introduced in the early 1990s and replaced 1G technology.

• It enabled features like SMS, MMS, and basic internet browsing.

• Examples of 2G technologies include GSM (Global System for Mobile Communications) and CDMA (Code Division Multiple Access).
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Q2. What is 3G technology
Ans. 
3G technology refers to the third generation of mobile telecommunications technology, offering faster data transfer speeds and improved network capacity.
• 3G technology allows for faster internet browsing and multimedia streaming on mobile devices

• It enables video calling and mobile TV services

• Examples of 3G technologies include UMTS (Universal Mobile Telecommunications System) and CDMA2000
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Q3. What is 4G Technology
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4G technology is the fourth generation of mobile telecommunications technology, offering faster data speeds and improved network reliability.
• 4G stands for fourth generation and is the successor to 3G technology

• Provides faster data speeds for browsing, streaming, and downloading

• Offers improved network reliability and coverage compared to previous generations

• Supports advanced features like VoLTE (Voice over LTE) and vide...read more
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Q4. What is 5G Technology
Ans. 
5G technology is the fifth generation of mobile networks, offering faster speeds, lower latency, and increased capacity for wireless communication.
• 5G technology provides faster download and upload speeds compared to 4G LTE.

• It has lower latency, meaning less delay in data transmission.

• 5G networks can support more devices simultaneously, making it ideal for IoT applications.

• It enables new technologies like self-driving c...read more
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Q5. What is TCP Ip protocol?
Ans. 
TCP/IP is a set of rules governing the exchange of data over the internet.
• TCP/IP stands for Transmission Control Protocol/Internet Protocol.

• It is a suite of communication protocols used to connect devices on the internet.

• TCP ensures that data is delivered reliably and in order.

• IP is responsible for addressing and routing data packets.

• Examples of TCP/IP applications include web browsing, email, and file transfer.
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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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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. Different n/w layers
Ans. 
Different network layers include physical, data link, network, transport, session, presentation, and application layers.
• Physical layer: responsible for transmitting raw bits over a communication channel

• Data link layer: responsible for error-free transfer of data between nodes on a network

• Network layer: responsible for routing data packets between networks

• Transport layer: responsible for reliable data transfer between a...read more
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Q1. Firewall works on what layers
Ans. 
Firewall works on multiple layers of OSI model
• Firewall operates on layers 3 (network layer) and 4 (transport layer) of the OSI model

• It can filter traffic based on IP addresses, ports, protocols, and other criteria

• Firewalls can also perform deep packet inspection to detect and block malicious traffic

• Examples of firewall software include Cisco ASA, pfSense, and Windows Firewall
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Q1. Any questions related 4g
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