Infinite Computer Solutions Interview Questions, Process, and Tips

Q1. What is STP full form ?
Ans. 
STP stands for Spanning Tree Protocol.
• STP is a network protocol used to prevent loops in Ethernet networks.

• It works by creating a loop-free logical topology by blocking redundant paths.

• STP elects a root bridge and calculates the shortest path to it for each network segment.

• It uses Bridge Protocol Data Units (BPDU) to exchange information between switches.

• STP is defined by the IEEE 802.1D standard.
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Q2. What is the main function of the Root bridge switch ?
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The main function of the Root bridge switch is to control the flow of data traffic in a spanning tree network.
• The Root bridge switch is elected as the central point of the spanning tree network.

• It determines the shortest path for data traffic to reach all other switches in the network.

• The Root bridge switch sends Bridge Protocol Data Units (BPDUs) to other switches to exchange information and maintain the spanning tree...read more
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Q3. In which layer the Ip address is working on if it working on L3 so how can we assisgn an Ip address on Layer 2 Switch descibe in the details ?
Ans. 
The IP address works at Layer 3 of the OSI model. Assigning an IP address on a Layer 2 switch is not possible.
• IP addresses are used for network layer communication (Layer 3)

• Layer 2 switches operate at the data link layer (Layer 2)

• Layer 2 switches use MAC addresses for communication within a local network

• IP addresses are assigned to devices connected to Layer 2 switches, not to the switch itself
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Q4. What is the port number of dns and how it's work?
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DNS uses port number 53. It works by translating domain names into IP addresses and vice versa.
• DNS stands for Domain Name System.

• Port number 53 is used for both TCP and UDP protocols.

• DNS works by resolving domain names to their corresponding IP addresses.

• It uses a hierarchical distributed database system.

• DNS queries and responses are sent over port 53.

• DNS operates through a client-server model.

• Example: When you type a ...read more
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Q5. What is the dhcp dora process?
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DHCP DORA process is the sequence of steps followed by a client to obtain an IP address from a DHCP server.
• DORA stands for Discover, Offer, Request, and Acknowledge.

• Discover: Client broadcasts a DHCP Discover message to find available DHCP servers.

• Offer: DHCP servers respond with DHCP Offer messages containing IP address lease information.

• Request: Client selects one DHCP Offer and sends a DHCP Request message to reques...read more
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Q6. What is the 2G and 3G and 5G service ?
Ans. 
2G, 3G, and 5G are different generations of mobile network technology.
• 2G refers to second-generation mobile network technology, which primarily provided voice and basic data services.

• 3G refers to third-generation mobile network technology, which introduced faster data speeds and enabled mobile internet access.

• 5G refers to fifth-generation mobile network technology, which offers significantly faster data speeds, lower l...read more
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Q7. Did you take a any participation in deployment activtiy if you have so described me about the roles and responsibilities for the deployment team ?
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Q8. What is the HTTPS port number ?
Ans. 
The HTTPS port number is 443.
• HTTPS uses port 443 for secure communication.

• It is the default port for secure HTTP connections.

• HTTPS encrypts data using SSL/TLS protocols.

• Examples: https://www.example.com:443 or https://192.168.0.1:443
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Q9. What is the HTTP port number ?
Ans. 
The HTTP port number is 80.
• The default port number for HTTP is 80.

• It is used for communication between web servers and clients.

• Other common port numbers for HTTP include 8080 and 8888.
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Q10. What is the ssh port number and why we used the ssh service ?
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SSH port number is 22. SSH service is used for secure remote access and secure file transfer.
• SSH port number is 22 by default

• SSH stands for Secure Shell

• SSH service provides secure remote access to servers

• It encrypts the data transmitted over the network

• SSH service is used for secure file transfer (SFTP) and remote command execution

• It provides authentication and encryption for secure communication
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Q11. What is the OSI model and describe about the each and every layer of that layer function and functionality?
Ans. 
The OSI model is a conceptual framework that standardizes the functions of a communication system into seven layers.
• Layer 1 (Physical): Deals with the physical transmission of data over the network.

• Layer 2 (Data Link): Provides error-free transmission of data frames between nodes on the same network.

• Layer 3 (Network): Handles routing and logical addressing to enable data transfer between different networks.

• Layer 4 (Tra...read more
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Q12. What is the tcp/ip model and why we used this model in current scenario?
Ans. 
The TCP/IP model is a network protocol suite that defines how data is transmitted over the internet.
• The TCP/IP model consists of four layers: Network Interface, Internet, Transport, and Application.

• It is used in the current scenario because it provides a standardized framework for communication between devices on a network.

• The TCP/IP model allows for reliable and efficient data transmission, ensuring that data packets ...read more
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Q13. What is the dtp porotocol ?
Ans. 
DTP (Dynamic Trunking Protocol) is a Cisco proprietary protocol used to negotiate trunking between switches.
• DTP is used to automatically negotiate trunking on a link between Cisco switches.

• It allows switches to dynamically form trunk links without manual configuration.

• DTP operates in three modes: dynamic auto, dynamic desirable, and trunk.

• Dynamic auto mode waits for the other end to initiate trunking.

• Dynamic desirable ...read more
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Q14. Which series you have worked on router device and the vendors?
Ans. 
I have worked on various router devices and vendors.
• Cisco routers (e.g. Cisco 2900 series)

• Juniper routers (e.g. Juniper MX series)

• Huawei routers (e.g. Huawei NE series)

• MikroTik routers (e.g. MikroTik RB series)
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It was not that hard

Mainly ration proportion and SQL and basic Java questions

Sql related questions

Related to salary and self info

Q1. About Studies and Like Manager round
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What is Your major education .
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Q2. Previous working experience
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where you worked. what is your role.
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Q3. About some technical questions related our job
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which is the recent issue you faced in pipelines.
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Q4. Education Gap or career gap
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Q1. About Salary Discussion
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Q1. All questions were related to Pyspark, Sql, Databricks and delta tables
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Q2. Pyspark & Data bricks interview questions asked : Project explanation - architecture used, cluster configurations. What is workspace, compute, workflows Syntax to perform join operation between employees...read more
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Q1. Same questions were asked with more questions on projects
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