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CCNA interview answers
What is the difference between switch and hub?Switch:Switches operate at Layer 2 Data Link layerAddress LearningForward / Filter decision using MAC addressLoop avoidanceBreak up collision domainsSwitches create separate collision domains but a single broadcast domainHub:Hub operates at Layer 1 Phys. 2 min
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Business Analyst Interview Answers
What is the difference between BRD (business required documents) and FRD (Functional Required Document)?BRD explains what the business requirements are, whereas the FRD explains how the business requirements can be achieved.Define Use Case ModelUse Case model is a designed to show a sequence of even. 2 min
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Python Interview Answers
What is Python? Python is an interpreted, interactive, object-oriented programming language. 3 min
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VMware Interview Answers
List the major components of VMware InfrastructureThe major components of VMware infrastructure are:ESX server hostVirtual Centre ServerVirtual Infrastructure (VI) clientWeb BrowserLicense ServerDatabaseWhich softwares are supported to install Virtual Centre Server Software?The VirtualCentre Server . 2 min
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HTML Interview Answers
What is HTML? HTML, or HyperText Markup Language, is a Universal language which allows an individual using special code to create web pages to be viewed on the Internet.What is a tag? In HTML, a tag tells the browser what to do. 3 min
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Oracle Interview Answers
What are the various types of queries?The types of queries are:Normal QueriesSub QueriesCo-related queriesNested queriesCompound QueriesWhat is a transaction?A transaction is a set of SQL statements between any two COMMIT and ROLLBACK statements.What is implicit cursor and how is it used by Oracle?A. 2 min
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UNIX Interview Answers
What is the major advantage of a hash table?The major advantage of a hash table is its speed. 3 min
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Software Testing Interview Answers
What is the MAIN benefit of designing tests early in the life cycle? Designing tests early in the life cycle can prevent defects from being introduced into the code.What is risk-based testing?Risk-based testing is the term used for an approach to creating a test strategy that is based on prioritizin. 3 min
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PHP interview answers
What does a special set of tags do in PHP?The output is displayed directly to the browser.What’s the difference between include and require?It’s how they handle failures. 2 min
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Perl interview answers
How do you know the reference of a variable whether it is a reference, scaller, hash or array?There is a 'ref' function that lets you knowWhat is the difference between 'use' and 'require' function?Use: 1. 2 min
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C++ Interview Answers
What is the difference between C & C++?C makes use of structures, function concepts, pre-processor statements, pointer and some build in function etc. 3 min
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Linux Interview Answers
Explain the difference between a static library and a dynamic library?Static library is linked into the executable, while a dynamic library (or shared object) is loaded while the executable has started.How do you create a static library?If you have a collection of object (.o) files, you can do it by. 1 min
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Apache Interview Answers
On a fresh install, why does Apache have three config files - srm.conf, access.conf and httpd.conf?The first two are remnants from the NCSA times, and generally you should be ok if you delete the first two, and stick with httpd.conf.What does apachectl graceful do?It sends a SIGUSR1 for a restart, a. 2 min
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JavaScript Interview Answers
What’s relationship between JavaScript and ECMAScript?ECMAScript is yet another name for JavaScript (other names include LiveScript). 1 min
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SQL Interview Answers
What is the difference between a "where" clause and a "having" clause?"Where" is a kind of restiriction statement. 4 min