Unix and oracle interview questions
Unix and oracle interview questions. UNIX. Say you’re preparing a report for the management to identify employees who have shown consistently high performance. c)both a) and b)d) none of the above. interview mention if i use the awr report and what to look for in awr. he mentioned using awk but dont know how that is done. Sep 26, 2018 · DOWNLOAD FREE Application Support interview Questions. Here I have collected some common Interviews questions asked to a DBA relating to Unix environment. 3. Create a user for DBFS. How to create a new Mar 9, 2024 · a) Unix has a set of manual pages for each command and this will give in-depth knowledge about commands and its usage. During this time, I have worked on several projects, including server maintenance, system monitoring, and Mar 30, 2024 · 4) What is the use of NVL function? The NVL function is used to replace NULL values with another or given value. Dec 6th, 2017. Shell- It is also called command prompt, it Answer: It is done by reversing the letters of the word case, i. Explain the purpose of the "tar" command in Unix and provide an example of how it is used. Glassdoor has 4 interview questions and reports from Unix and sql interviews. 13. Question (2) What are the components of a PL/SQL Block? Answer. file processing utilites. Create Tablespace on the database which you are going to use for DBFS. How do I know if my volume group is normal, big, or scalable? Run the lsvg command on the volume group and look at the value for MAX PVs. Now that you have seen some of the frequently asked Linux/UNIX command-line questions from programming job interviews, let's discuss some SQL and Database interview questions. O/P of this command is to know how to use the Find command. Oracle Unix Interview Questions and Answers. disk processing utilites. The kernel is a program at the heart of the Linux operating system that takes care of fundamental stuff, like letting hardware communicate with software. We can create reports, forms & charts. Explain file permission in Linux. This blog will outline the basics of Unix shell scripting and Unix shell scripting interview questions for experienced are likely to encounter during job interviews. This interview section questions contains a brief introduction to the Orcle DBA . First HR call you then they first simple into and technical round,then after that Manager round,Then after that client round on video conferencing, Then after that particular Team take interview on video conferencing. Wait for the snapshot to be created. and my main concern is unix questions if you have good idea what questions they might ask or whwre i can get the best ones i will appreciate. Answer Question. Answer: Components of logical data model are. I have experience in configuring, managing, and troubleshooting UNIX systems. It provides a robust command-line interface and forms the basis for many modern operating systems. Explain the concept of indexing in SQL. UNIX Interview Questions. I have also worked with various UNIX applications such as Apache, MySQL, PHP, and Perl. What are the Benefits of C Shell over Bourne Shell? When interviewing for Oracle Jobs it is important to be prepared to answer interview questions that challenge your technical knowledge. Mar 9, 2024 · Oracle PL/SQL is an extension of SQL language that combines the data manipulation power of SQL with the processing power of procedural language to create super powerful SQL queries. Oracle weblogic. Data stored as – Data blocks, extents, segments, and tablespaces. Mar 27, 2023 · This article is particular to Unix application support interview questions with its answers. SELECT employee_name. It provides a quick visual overview of directory contents, ensuring efficient navigation and file management. if you have any ideas please give whatever you got. 14. Now connect to the database with created user. Dec 12, 2023 · Interviewers might ask questions to understand how much you know about Oracle processes and how you conduct your work, especially if Oracle has been an important part of your previous roles. are. The first directory is ‘root’, represented with a forward slash (/). The "tar" command in Unix is used to archive and compress files and directories into a single file, often referred to as a "tarball. Create dbfs filesystem by invoking dbfs_create_filesystem_advanced. Explain the difference between UNIX and Linux. Go to the Snapshots page. It is stored as a column of the table and has specific datatype associated with it. Dec 23, 2019 · By Admin / December 23, 2019 / 1 minute of reading. Kernel- The kernel is also known as the heart of the operating system. Parth Gandhi. Mar 9, 2024 · Linux Interview Questions and Answers for Freshers 1) What is Linux? Linux is an operating system or a kernel distributed under an open-source license. Dependency on other software tools is less. View Answer. Mar 9, 2024 · The article is based on most frequently asked UNIX interview questions with answers. May 11, 2020 · The purpose of PL/SQL is to combine database language and procedural programming language. Interview. Other compare-and-contrast type questions could include: Bash versus DOS. Startup restrict mount; Linux interview questions for DBA. 5. PL/SQL stands for “Procedural Top PL/SQL Interview Questions with Answers ; XML Publisher Interview Questions with Answers ; Difference between Valuesets and Lookups ; FNDLOAD Scripts to Migrate AOL Entities ; How to submitt XMLP Report using a PL/SQL Script ; Frequently asked SQL Interview Questions on EMP, DEPT table ; FNDLOAD Utility to port reports from one environment Mar 27, 2023 · This article is particular to Unix application support interview questions with its answers. All the best for your interview Preparation. Viewing 1 - 4 of 4 interview questions. Sep 6, 2023 · Answer: (100 % asked SQL Interview Questions for Production Support) SQL Server Profiler is a tool used to capture and analyze SQL Server events. 1. Jun 5, 2013 · Here I would like to share interview questions regarding Solaris zones which will be normally asked for L2 level candidates in Solaris interviews. Jan 15, 2024 · Interview. Sep 27, 2020 · Ans: Oracle Apex is a free web development tool. These questions are common for both Senior Oracle DBA or Junior DBA. These questions are mostly asked for senior Oracle DBA positions. Answer: Built-in-editor that can simulate emacs or vi. ACID compliance – Fully compliant. process utilites. Other wise just shoot me any ideas you have that will be helpfull. 26. While both UNIX and Linux are Unix-like operating systems, UNIX typically refers to commercial versions, while Linux is open source. Question (3) What are the data types available in PL/SQL? Answer. A tablespace in DB2 is a storage structure that holds the database tables, indexes, large objects, and long data. Otherwise, go to DBCA and click on delete database. This question directly pertains to a critical part of the Technical Analyst role. The command “GET SNAPSHOT FOR LOCKS ON dbname” gives a detailed report. 2. Now a days virtualization plays very important role in infrastructure market to reduce the data center space,power and utilizing hardware potentially. Questions on UNIX commands, admin, and basic interview questions. Execute: Allows a user to run the file. C) both a and b. This is one of the important interview questions on Unix for experienced professionals. Round 2: Behavioral with HM. Oracle database. , esac. Mainly it is designed for systems, servers, embedded devices, mobile devices, and mainframes and is also supported on major computer platforms such as ARM, x86, and SPARC. Mount file system by starting dbfs_client. Top Oracle AOL Interview Questions and Answers: Below, we have covered detailed answers to the Oracle AOL Interview Questions Which will be helpful to freshers and experienced Professionals. ora 6) clean the UDUMP, BDUMP, scripts etc, 7) Cleanup the listener. c. Write an Oracle SQL query to retrieve the names and performance ratings of employees with a rating of 5 in all their performance evaluations. May 29, 2006 · Okay guys i am expecting an interview this week. Question 6. The virtualization goal is that utilizing the hardware without scarifying the application Introduction to Linux – Full Course for Beginners. Apr 6, 2024 · Here are Production Support interview questions and answers for freshers as well as experienced candidates to get their dream job. A filter. PL/SQL ensures seamless processing of SQL statements by enhancing the security, portability, and robustness of the Database. Tablespaces are important for several reasons: Data Organization: They help in organizing data within a database. It is intended as a tutorial on the Oracle, and commonly asked qestions in all interviews. ( Click here for the solution — K sorted Lists) Jul 5, 2013 · Always Solaris administrators work will be harder than any other Unix and Linux flavors administrators. In case if there are large updates to be done, then the resource utilization is high accordingly. Click the “Create Snapshot” button and choose the database you want to create a snapshot of. It is flexible to integrate its own javascript code. Give some major features of the Korn shell. ( Click here for the solution) You’re given two Linked Lists, “A” and “B,” that are sorted. interviewer said answer could be either in oracle or unix. I have divided the questions into 3 categories Technical Interview Questions, Unix Related questions asked to an Oracle Database Administrator (DBA) and Backup and Recovery Interview Questions commonly asked in Oracle DBA interview Nov 1, 2022 · To perform a point-in-time recovery of an Oracle Cloud database using a snapshot, you can follow these steps: Log in to the Oracle Cloud Infrastructure Console. What is Shell Scripting? Q3. Explain the basic features of the Linux OS. Example is –. Oracle sql and plsql. In find command we can search all type of file or directory. 15. ( 100 % asked Application Support Interview Questions ) Answer : The above question is also more behavioral question you need to answer it technically. Discuss your strategy for performing regular backup and recovery tasks in Oracle environments. In production support, it can help identify slow-running queries by capturing query execution times, allowing for performance optimization. What every SRE should know about GNU/Linux shell related internals: file descriptors, pipes, terminals, user sessions, process groups and daemons. For an example Solaris 10 is somewhat different from earlier versions of Solaris since sun have introduced new technologies like ZFS,Zones and Oracle DBA Questions For Freshers or Experienced. Ans: Create Directory. Its portability allows it to run on different hardware platforms. Sep 4, 2023 · Q1) How do you list files in a directory? Ans: The ls command is fundamental in UNIX. feel free to answer this. 12. Example: “UNIX is the operating system on which Linux is based. Other approaches. Tell me about a time you had to relay bad news to a client or colleague. ü Whereas in a snow flake schema, a dimension table will have one or more parent tables. Rate your communication skills on a scale of 1 to 10. Jan 15, 2024 · First HR call you then they first simple into and technical round,then after that Manager round,Then after that client round on video conferencing, Then after that particular Team take interview on video conferencing. Unix. A snapshot is a replica of a target master table from a single point-in-time. Aug 30, 2023 · DB2 lock contention issues can be monitored and troubleshooted using the following methods: 1. It contains the features of C (csh) and Tab C (tcsh) shells, along with a scripting language similar to the Bourne shell. This interviewer was not friendly at all. Feb 8, 2024 · Linus Torvalds developed Linux, a Unix-like, free, open-source, and kernel operating system. Example: %man find. Main storage structures – Logical and physical. Give examples of experiences that demonstrate the rating is accurate. A)provides information on helpb)grep searches in a file whereas find searches for files and directories. thank you 27. 4. Love your job. Learn about interview questions and interview process for 4 companies. d Another way is to create your own script. December 08, 2019 Q. I have compiled these questions based upon the feedback I got from many candidates who have attended interviews in various MNC's Example: “I have experience in administering UNIX systems. RAC uses the interconnect for cache fusion (UDP/RDS) and inter-process communication (TCP). You can change the permission of a file or a directory using the chmodcommand. Apr 1, 2024 · Here are some coding questions that are asked at Oracle’s coding interview: Write a program to implement a Queue using two stacks. There are 3 kinds of permission in Linux: Read: Allows a user to open and read the file. The overall shell scripts are vast (around 280) Other approaches cannot handle such a vast term. d. Dec 8, 2019 · Prepare the latest and mostly asked interview Questions and answers on Apache, AI, Amazon tools, AWS, Google, cloud, Java, Oracle applications, programming languages and Blockchain technologies. These questions can highlight your expertise in certain Oracle systems or database roles. Interview questions [1] Question 1. Jan 2, 2024 · 1) Compare UNIX Shell Scripting with others. SRE deep dive into Linux Page Cache. Oracle performance. ‘df’ and ‘du’ for monitoring disk usage, enabling me to keep track of available storage space and identify potential capacity issues. Directory. Q2) How can you list files with detailed information? Tutorials. It is used to code web apps. Clusterware uses the private interconnect for cluster synchronization (network heartbeat) and daemon communication between the clustered nodes. This list includes questions on SQL query and database fundamentals. Oracle automatically creates, resizes and deletes flashback logs in the flash recovery area. 1) What is production support? Production support is the practice of supporting the IT systems/applications. Use DB2 snapshot monitoring: This provides information about locks held by applications, lock waits, and lock escalations. Sep 2, 2023 · Question 1: What is Unix? (100% asked Unix Production Support Interview Questions ) Answer : Unix is a powerful and versatile multi-user, multitasking operating system developed in the late 1960s. The interviewer was friendly during interview. In simple words you can say, snapshot is a copy of a table on a remote database. Apr 28, 2024 · sumanktree. Q: How do you automate starting and shutting down of databases in Unix/Linux? A: One of the approaches is to use dbstart and dbshut scripts by init. Using browser based user interface and limited programming experience, you can build a complete data-centric web application in a very fast development cycle. 1 day ago · Answer: It is a Unix shell that builds on some of the most popular Unix shells. 1. These interview questions will also help in your viva (orals) Here are DB2 interview questions and answers for freshers as well as experienced candidates to get their dream job. Cron versus anacron. sandip. Declarative part, Executable part, and Exception part. Question 1: **Interviewer:** What’s the main role of Level 1 support? **Answer:**. Prepare for your interview. Architecture – Grid architecture. While, there is no concept of partition and parallelism in informatica for node configuration. You may receive experience and background questions like: 17. I have compiled these questions based upon the feedback I got from many candidates who have attended interviews in various MNC's b) Linux is also known as a version of UNIX. Feb 14, 2024 · Q15. 4) What are the core concepts of UNIX. May 25, 2016 · 15. DBA should be aware of flashback logs to monitor performance,to decide how much space to allocate to flash recovery area. In Oracle 10g there is a new command to drop an entire database. ”. they are mainly 5 utilies in unix operating system and they. What is UNIX? Answer: It is a portable operating system that is designed for both efficient multi-tasking and multi-user functions. I have compiled these questions based upon the feedback I got from many candidates who have attended interviews in various MNC's. The core concepts of UNIX are given below. Sep 4th, 2016. Explain the differences between grep, sed, and awk commands. Feb 17, 2020 · Answer. ü In a star schema, a dimension table will not have any parent table. d/ directory Sep 2, 2023 · L1 Support Interview Questions and answers. e. PL/SQL stands for “Procedural Strategies to respond to interview questions · 2 Aptitude Tests Oracle Database Administration Interview Questions You'll Most Likely Be Asked is a perfect companion to stand ahead above the rest in today's competitive job market. It can also be defined as an interface between a user and the operating system. Datastage is more user-friendly as compared to Informatica. This blog explores some of the most frequently encountered Oracle DBA architecture interview questions from an architecture domain perspective, in order to better prepare learners for an Apr 6, 2024 · 50) Mention the downsides of PAGE level lock. It essentially represents a location where data is stored physically. NVL (Value, replace value) 5) Whether any commands are used for Months calculation? If so, What are they? In Oracle, months_between function is used to find number of months between the given dates. Apex is a runtime environment. As a UNIX administrator, you’ll be working with various command-line tools to manipulate text and automate tasks. Q #2) What is Shell Scripting? Answer: Shell scripting is nothing but a series or sequence of UNIX commands written in a plain text file. During this time, I have worked on several projects, including server maintenance, system monitoring, and May 14, 2016 · no answer. command substitution. Apex runs on PL/SQL inside the web browser. Example: %whatis grep. Question 1 : What is your experience with Unix/Linux administration? Answer: I have worked as a Unix/Linux system administrator for 10 years. c) A user can run multiple programs at the same time; hence UNIX is called a multitasking environment. This page contains interview questions on following topics. The big day has come! Now here are some additional tips to ace the live interview process. Q2. • Record – It refers to a Aug 10, 2012 · ü In a star schema every dimension will have a primary key. Aug 18, 2005 · Hi to all, any know the site addresses of unix interview questions. e. View answer. It can also be specified as an interface linking a user and operating system. How to get the current directory?2. network utilites. Because Solaris administrator have to learn,third party products like veritas volume manager,veritas cluster and rapidly changing Solaris technologies. Make sure that the oratab entry is also removed. I have worked with various flavors of UNIX such as Solaris, AIX, HP-UX, and Linux. ü Hierarchies for the dimensions are stored in the dimensional table itself in star schema. IT Job Interview Questions In order to be successful at an interview you will need to convince the interviewer that you have the right skills and personal attributes for the job. Asked a leetcode medium on graphs and some behavioral questions. **Candidate:** L1 support plays a critical role as the first point of contact for users or clients encountering technical issues. Also, Informatica is more scalable than Datastage. Apr 16, 2024 · 5) initSID. It has its own table. Ans : Shell is a command editor, which represents the command which the user returns to this kernel. . Write a code to merge the two Linked Lists. Jan 2, 2024 · IBM AIX Interview Questions for Freshers. Step 3: Ace the interview. Apr 27, 2024 · I interviewed at Oracle (Bengaluru) in Aug 2022. Apr 6, 2024 · 8) Differentiate between datastage and informatica? In datastage, there is a concept of partition, parallelism for node configuration. Oct 31, 2023 · 2. Where you will see yourself in next 5 years. Which types of backups you can take in Oracle? 2. What are Linux shells? Linux shells are interpreters that act as a bridge between the kernel and the user, they interpret user input and execute programs based on it. Mention Oracle DBA characteristics. May 18, 2024 · Basic Oracle DBA Interview Questions for Freshers. They’re responsible for diagnosing and resolving problems or escalating them if needed. Oracle databases are complex systems and interviewers may ask a series of questions designed to assess both your knowledge and experience in dealing with them. User-specific with user ID log into Apex & run the apps from the menu. The grep, sed, and awk commands are essential for text processing and data extraction. Mar 7, 2024 · Answer: Shell is a command interpreter, which interprets the command given by the user to the kernel. • Entity – Entity refers to an object that we use to store information. d) Many people can use a UNIX based computer at the same time; hence UNIX is called as a multiuser system. A pipe. Give an example of a file system (hierarchy) in Unix. Apr 12, 2024 · Interview questions [1] Question 1. 7. Its functionality list is quite like UNIX. Feb 3, 2023 · As an interview candidate, this presents a unique opportunity to offer a complete answer that shows your knowledge of the competing systems. % ps -ef|grep ora_. ‘chmod’ and ‘chown’ for managing file permissions and ownership, ensuring that users have appropriate access levels to resources on the system. Sep 4, 2023 · Also, consider how you would communicate your work as you go; remember, we want to understand how you solve problems and not just see the code. b) If you want a simple description of a command, then use whatis command. text processing utilites. Flashback logs are written sequentially not archived. Is it more important to be a good listener or a good communicator In Oracle Unix? 13. Its fundamental role is to interact with the hardware and also monitor major processes like memory management, file management, and task scheduling. thank you Here you will learn Top 25 UNIX commands interview questions and answers asked to software testers. what is your approach on identifying why query is running slow? my ans: look at the explain plan, do autotrace. Sql questions are based on joins. How do you automate starting and shutting down of databases in Unix? Automatic startup can be done with /etc/oratab/ entyr of the linux machine. Get hired. By default, when executed, it displays the files and directories in the current directory. If you’re a beginner, check out these Unix interview questions to gauge your preparation level: Define and describe: Unix. Each DataLemur SQL question has multiple hints, step-by-step solutions and crucially, there is an interactive SQL code editor so you can right in the browser run Jan 15, 2024 · First HR call you then they first simple into and technical round,then after that Manager round,Then after that client round on video conferencing, Then after that particular Team take interview on video conferencing. Ask clarifying questions about requirements. Grant required privileges to a created user. Linux is a UNIX-like operating system that is freely available and has many distributions, like Ubuntu and CentOS. What is the Quality of writing Shell Scripts? Q4. Apr 2, 2024 · Beyond just solving the above Oracle SQL interview questions, you should also solve the 200+ DataLemur SQL Interview Questions which come from companies like FAANG and tech startups. This communication is based on the TCP protocol. How do you see how many instances are running? In unix, you can use the command line. There is often a need for the same. The interviewer asked to write query in chat and asked some linux commands. The value is 32 for normal, 128 for big, and 1,024 for the scalable volume group. 2 days ago · There will be 4 rounds on the same day with 2 coding challenge rounds, 1 system design and 1 Behavioral with hiring manager. ora. Jun 6, 2023 · 3. command will come under the utilites. Apr 26, 2010 · View Also: Oracle DBA Interview Questions Answered: Technical 1. php. To do that, create your own script "dbora" in /etc/init. Some scalar data types such as. ora and the tnsnames. Jun 2, 2023 · 13. Oracle apps. please help me. Written Test : Programming logic for below questions : 1)String is Palindrome 2)Reverse a String 3)Find missing number in arithmetic progression 4)Find unique substring 5)Find the sum of numbers in a alpha-numeric string 6)Find the number of occurrences of a character in a string and print 7)Bracket Question Mar 9, 2024 · Oracle PL/SQL is an extension of SQL language that combines the data manipulation power of SQL with the processing power of procedural language to create super powerful SQL queries. Question 3 : Explain one common scenario of application support you have faced. • Attribute – It represents the information of the entity that we are interested in. Kernel. Round 1: Coding challenge the interviewer was interactive. 4 "Unix and sql" interview questions. It was based on sql and some question about networks. Write: Allows a user to open and modify the file. i need these desperately. Sep 23, 2023 · Overall, my familiarity with both PeopleSoft and Oracle allows me to ensure smooth, efficient integrations that meet business needs. 1) What is Application Express? Ans) It is formerly called HTML-DB, a web-based RAD tool which resides in Oracle database. " Jun 1, 2018 · This page consists a bunch of scenario based questions and their most possible answers, I have tried to answer to the best of my knowledge but if you feel there could be more possible answers or if you have more list of questions and answers which you have faced and think will be helpful for others then please do let us in know via comment box available at the end of this page and I can add Apr 1, 2024 · Top Unix Interview Questions for Beginners. There is no need to write a complete payroll system. 17. I am trying to cover most of the interview asked in these areas. 10) What is the difference between hot backup and cold backup in Oracle? Tell about their benefits also. Some of the Common Backup and Recovery Interview Questions for Oracle Database Administrator. Jun 7, 2019 · b. Answer: Unix follows many standards for its file system. js ur tr ei rq we yx uk ey px