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BrandMuscle Interview Questions and Answers

Updated 2 Nov 2024
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Q1. How will you get the data in the table using js? what are the other ways to print the output? what is a block in js?

Ans.

To get data in a table using js, you can use DOM manipulation methods like getElementById or querySelector. Other ways to print output include console.log and innerHTML. A block in js is a set of statements enclosed in curly braces.

  • Use getElementById or querySelector to get data in a table using js

  • Other ways to print output include console.log and innerHTML

  • A block in js is a set of statements enclosed in curly braces, used to group code together

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Q2. How to solve the error in the code? what is scope? what are logical operators?

Ans.

Scope refers to the visibility and accessibility of variables in a program. Logical operators are used to perform logical operations in code.

  • Scope in programming refers to where in the code a variable can be accessed. It can be global, local, or block scope.

  • To solve an error in the code, first identify the error message or behavior causing the issue. Then, debug the code by checking for syntax errors, logical errors, or runtime errors.

  • Logical operators in programming are used...read more

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Q3. what are the different types of joins

Ans.

Different types of joins include inner join, outer join, left join, and right join.

  • Inner join: Returns rows when there is a match in both tables

  • Outer join: Returns all rows when there is a match in one of the tables

  • Left join: Returns all rows from the left table and the matched rows from the right table

  • Right join: Returns all rows from the right table and the matched rows from the left table

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Q4. how to find errors in log files in linux

Ans.

Errors in log files in Linux can be found by searching for keywords, timestamps, and error codes.

  • Use 'grep' command to search for specific keywords or error codes in log files

  • Look for timestamps to identify when errors occurred

  • Check for any error messages or warnings that may indicate issues

  • Use 'tail' command to view the end of log files for recent errors

  • Consider using 'journalctl' command for system logs in systemd-based Linux distributions

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Q5. how to tune a sql query?

Ans.

Tuning a SQL query involves optimizing its performance by adjusting various factors.

  • Identify slow performing queries using tools like SQL Profiler or Execution Plan.

  • Optimize query structure by using appropriate indexes and avoiding unnecessary joins.

  • Consider rewriting the query to use more efficient techniques like subqueries or CTEs.

  • Update statistics on tables involved in the query to ensure accurate query execution plan.

  • Limit the result set by using WHERE clause effectively...read more

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Q6. What is shell in linux?

Ans.

Shell in Linux is a command-line interpreter that allows users to interact with the operating system by executing commands.

  • Shell is a program that takes commands from the keyboard and gives them to the operating system to perform.

  • It can also be used to automate tasks by writing scripts.

  • Common shells in Linux include Bash, Zsh, and Ksh.

  • Shell scripting allows users to write programs that can be executed by the shell.

  • Examples of shell commands include ls (list files), cd (change...read more

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Interview Process at BrandMuscle

based on 8 interviews
2 Interview rounds
Technical Round - 1
Technical Round - 2
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