By Chinmoy Mukherjee
We current 70 fascinating database interview questions and solutions for readers to perform and crack any database interview. The reader is inspired to attempt to unravel those questions himself/herself ahead of checking the solutions.
Read Online or Download Cracking the Coding Interview: 70 Database Questions and Answers PDF
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Hacking the Kinect is the technogeek’s consultant to constructing software program and growing initiatives concerning the groundbreaking volumetric sensor often called the Microsoft Kinect. Microsoft’s free up of the Kinect within the fall of 2010 startled the expertise international by way of supplying a reasonably cheap sensor which can observe and music physique circulate in third-dimensional house. The Kinect set new documents for the fastest-selling machine of all time. it's been followed around the world by means of hobbyists, robotics fans, artists, or even a few marketers hoping to construct enterprise round the technology.
Hacking the Kinect introduces you to programming for the Kinect. You’ll discover ways to manage a software program surroundings, circulate information from the Kinect, and write code to interpret that facts. The development of hands-on tasks within the e-book leads you even deeper into an realizing of the way the gadget capabilities and the way you could use it on create enjoyable and academic initiatives. Who is familiar with? chances are you'll even get a hold of a enterprise idea.
* offers an outstanding resource of enjoyable and academic initiatives for a tech-savvy mother or father to pursue with a son or daughter
* Leads you gradually from making your first actual connection to the Kinect via mastery of its full function set
* indicates how one can interpret the Kinect info circulation as a way to force your individual software program and functions, together with robotics functions
<h3>What you’ll learn</h3> * the best way to create a software program surroundings and fix to the Kinect out of your computer
* the best way to create 3-dimensional pictures from the Kinect info circulate
* easy methods to realize and paintings round obstacles
* find out how to construct machine interfaces within the variety of "Minority Report"
* how one can engage at once with gadgets within the digital international
* the bits and bobs of point clouds, voxel occupancy maps, intensity photographs, and different basics of volumetric sensor expertise
<h3>Who this publication is for</h3>
Hacking the Kinect is aimed toward makers of all kinds. Tech-savvy artists can use the Kinect to force third-dimensional, interactive paintings. Robotics hobbyists can create robots in a position to “seeing” and responding to human movement and gesture. Programmers can create applications in which clients control information via actual movement and gestures. The artistic probabilities are unlimited, and fun!
Hacking the Kinect does require a few programming historical past. Familiarity with programming in C++ or comparable languages is believed. Readers must also be kind of cozy operating with electronics—for instance, with Arduino or comparable gear.
<h3>Table of Contents</h3><ol> * Introducing the Kinect
* software program
* machine imaginative and prescient
* Gesture acceptance
* Introducing aspect Clouds
* improving Our aspect Clouds
* item Modeling and Detection
* a number of Kinects
The newest strategies for warding off UC catastrophe
Establish a holistic safety stance by way of studying to view your unified communications infrastructure throughout the eyes of the nefarious cyber-criminal. Hacking uncovered Unified Communications & VoIP, moment variation deals completely improved assurance of todays rampant threats along ready-to set up countermeasures. easy methods to block TDoS, toll fraud, voice junk mail, voice social engineering and phishing, eavesdropping, and man-in-the-middle exploits.
This accomplished consultant positive aspects all-new chapters, case reports, and examples.
• See how hackers aim susceptible UC units and whole networks
• protect opposed to TDoS, toll fraud, and repair abuse
• Block calling quantity hacks and calling quantity spoofing
• Thwart voice social engineering and phishing exploits
• hire voice unsolicited mail mitigation items and filters
• improve Cisco Unified Communications supervisor
• Use encryption to avoid eavesdropping and MITM assaults
• keep away from injection of malicious audio, video, and media records
• Use fuzzers to check and buttress your VoIP purposes
• find out about rising applied sciences comparable to Microsoft Lync, OTT UC, other kinds of UC, and cloud and WebRTC
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Extra info for Cracking the Coding Interview: 70 Database Questions and Answers
Answer: Join Database Interview Question-41. Which of the following SQL clauses is used to sort a result set? SORT ORDER BY ARRANGE SORTED BY Answer: B Database Interview Question-42. The FROM SQL keyword is used to A. Specify the table we are modifying. B. Specify the table we are inserting data in. C. Specify the table we are selecting or deleting from. Answer: C Database Interview Question-43. What does ACID stand for? A. Access. Constraint. Index. Data. B. Atomicity. Consistency. Isolation.
Answer: WHERE clause cannot be used with aggregates, but the HAVING clause can be used. WHERE is less expensive than that of HAVING Database Interview Question-30. Write a simple Stored Procedure. Answer: Here is a sample stored procedure CREATE PROCEDURE GetEmployeenameEmailInOutputVariable ( @ID INT, --Input parameter @NAME VARCHAR (200) OUT, -- Output parameter to collect name @EMAIL VARCHAR (200)OUT -- Output Parameter to collectemail ) AS BEGIN SELECT @NAME= Firstname+' '+Lastname, @EMAIL=EMAIL FROM EMPLOYEE WHERE ID=@ID END Database Interview Question-31.
What all constraints are supported by MYSQL? Answer: We have the following constraints: A. NOT NULL – The constraint ensures that a column cannot store NULL value B. UNIQUE - The constraint ensures that column cannot have duplicate value C. PRIMARY KEY – This constraint is combination of UNIQUE and NOT NULL D. FOREIGN KEY – This constraint ensures that referential integrity among multiple table is maintained E. CHECK - This constraint ensures that the value in a column meets a specific condition F.