ITSource Technologies SAP PP Consultant Interview Questions and Answers

On python and sql coding.they ask simple to complex questions

Q1. On data science machine learning
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There were 3 rounds for data science consultant position at Equifax. 1st round consists of Python and SQL questions and also in this round they have tested analytical thinking as well.

In 2nd round they have asked me questions from my resume and asked me to explain the projects which I have worked on in previous company. In this round they have asked me pandas related questions and asked me write code.

Q1. In Managerial round again here I have been asked questions related my projects. and no coding round in this stage.
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Q1. What is Tuples? How do you convert a string to a tuple?
Ans. 
Tuples are immutable sequences of elements. A string can be converted to a tuple using the tuple() function.
• Tuples are similar to lists but are immutable

• Elements of a tuple are enclosed in parentheses ()

• A string can be converted to a tuple using the tuple() function

• Each character in the string becomes an element in the tuple
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Q2. What is Left Join? Show one Left join for 2 data frames on Python
Ans. 
Left join is a type of join operation in SQL that returns all the rows from the left table and matching rows from the right table.
• Left join is performed using the 'left join' keyword in SQL

• In Python, left join can be performed using the 'merge' function from the pandas library

• Syntax: pd.merge(left_dataframe, right_dataframe, how='left', on='key_column')

• Example: pd.merge(df1, df2, how='left', on='id')
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Q1. Why we are hiring you
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Q2. What's your qualification
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Q3. Tell me about your daily ruteen
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Q1. How does OSPF works?
Ans. 
OSPF is a link-state routing protocol that uses Dijkstra's algorithm to calculate the shortest path to a destination network.
• OSPF routers exchange link-state advertisements (LSAs) to build a complete topology of the network.

• Each router calculates the shortest path to every network using Dijkstra's algorithm.

• OSPF uses cost as its metric, which is based on the bandwidth of the link.

• OSPF supports multiple areas, which red...read more
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Q2. How does the BGP works?
Ans. 
BGP is a routing protocol used to exchange routing information between different autonomous systems.
• BGP uses TCP as its transport protocol.

• It operates on a hop-by-hop basis, meaning that it only exchanges routing information with its directly connected neighbors.

• BGP uses path attributes to determine the best path for a given destination.

• BGP can be used for both IPv4 and IPv6 routing.

• BGP is commonly used by Internet Ser...read more
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Q3. How to check copper twisted pair?
Ans. 
Copper twisted pair can be checked using a cable tester to ensure proper connectivity and identify any faults.
• Use a cable tester to check for continuity and proper wiring

• Check for any faults such as shorts, opens, or miswires

• Verify that the cable meets the required specifications for the network

• Perform a loopback test to ensure that data can be transmitted and received properly
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Q4. How to identify leased line modem fault?
Ans. 
Identifying leased line modem fault
• Check if the modem is powered on and all cables are properly connected

• Check the modem's status lights for any abnormalities

• Perform loopback tests to check for connectivity issues

• Check the modem's configuration settings

• Replace the modem if all other troubleshooting steps fail
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Q5. How to find the reliability of a link on Cisco routers?
Ans. 
To find the reliability of a link on Cisco routers, use the show interface command.
• Log in to the Cisco router using the console or Telnet/SSH.

• Enter the command 'show interface' to display the status of all interfaces on the router.

• Look for the 'input errors' and 'output errors' fields to determine the reliability of the link.

• If there are a high number of errors, the link may be unreliable and require troubleshooting.

• Ot...read more
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Q1. Crimping and punching
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Q2. Hard restart computer
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