Buster Dose Questions

8/9/2019 Buster Dose Questions

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UBJ S SUPER INTERVIEW CRACK QUESTIONS

THE FOLLOWING SETS OF QUESTIONS WHICH ARE GIVEN

BELOW WILL HELP YOU TO CLEAR ANY INTERVIEW OF ANY

TECHNICAL LEVEL.APART FROM THIS MAKE SURE THAT U

HAVE ALREADY READ THE TWO INTERVIEW QUESTIONS I HAD

ALREADY UPLOADED OF PERSISTENT AND BIRLASOFT .

============================================UDDALA

K BANERJEE(UBJ),CSE ,NIT RAIPUR .

Q.WHAT IS A RESULTSET ?

ANS:IT IS AN INTERFACE IN JAVA which is used to store data on execution of query.

Q.What is white box testing?

Ans:IT is close examination of procedural detail.

Q.what is alpha testing?

Ans: IT is conducted at developers site by end users.

It is conducted in controlled environment.

Q.What is beta testing?

Ans:IT is conducted at enduser sites.

Developer is not present here.

Q.what is blackbox testing?

Ans:Examines some fundamental aspects of a system with little regard for the internal logical software

of the software.

Q what are DiskScheduling methods?

Ans: FCFS

SSTF

SCAN


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LOOK

Q.what is critical section problem?

Ans: TO design a protocol that the processes can use to cooperate.

Critical section is segment of code in which process may be changing common variables,updating tables

etc

QWhat is the solution to critical section problem?

Ans: 1.Mutual Exclusion

2.Progress Requirement

3.Bounded Waiting

Q.write PreOrder,postoder and inorder Traversal of the following tree.

A,B,C,D,E ,F,G,H,I

ANS: PREORDER: A B D G C E H I F

POSTORDER: G D B H I E F C A

INORDER: D G B A H E I C F

Q what are the orders of traversal ?

Ans: Post Order: Left Right Root

INorder: Left Root Right

Preorder: Root left right

Q.What is ALOHA?

ANS: IT is earliest random access method(in early 1970s)

It is of two types-

1.Pure ALOHA

2.Slotted ALOHA

Q.what is thoroughput for pure ALOHA?

Ans:S=g* e^-2g

Where


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Smax=0.184

When G=0.5

Vulnerable time=2*Tfr

Q.what is throughput for slotted ALOHA?

Ans: S=g*e^-g

Smax=0.368

G=1

Vulnerable time=Tfr

Q.what is SNR?

Ans: It is called Signal to Noise Ratio

Snr= AVERAGE SIGNAL POWER/AVERAGE NOISE POWER

Q what are networking commands in LINUX?

Ans: LYNX --- browse from ordinary terminal

DU---- DISK USAGE OF FILES AND DIRECTORIES IN FILENAME

WHO AM I RETURN USERNAME

TALK USERNAME--- LETS CONVERSATION WITH OTHER USER

WRITE USERNAME--- EXCHANGE ONLINE MESSAGES

FF---- FINDS FILENAME ON SYSTEM

GREP STRING,FILENAME----- LOOKS FOR STRING IN FILENAME

RLOGIN HOSTNAME--- CONNECTS TO REMOTE HOST

Q.WHAT ARE Java Server Faces specification?

Ans: Packages are:

Javax.faces

Javax.faces.convert------- interfaces defining converter

Javax.faces.event---------interfaces define event file


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Javax.faces.webapp------classes required for integration of java server file.

Q.what is full form of ICAD?

Ans: Internet Content Adapter Protocol.

Q.Write a simple if loop in linux?

Ans: echo $ ubj=:uddalak banerjee

If [ -z $ ubj]

Myname= who am I

Fi

Q. What is Unit testing?

ANs :IT focuses verification effort on the smallest unit of software designthe software components of

modules.

Boundary testing is one of the most important unit testing tasks

Unit tests should uncover errors such as the following :

1.comparison of different datatypes

2.incorrect logical operator or precedence

3.incorrect comparison of variables

4.improper loop termination.

Q. What are the disadvantages of water fall model?

ANs: 1.Real Life Projects donot follow sequential flow

2.Customer has to state all requirements first

Q.what are the advantages of spiral model?

ANs: 1.realistic approach

2.Uses prototypes as risk reduction.

Q.what is data transformation?

ANs: Data is transformed into other forms appropriate for mining.

Data transformation involves


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1.smoothing

2.Aggregation

3.Generalization

4.Normalization

5.Attribute Construction

Q What are different Datamodels?

ANs 1.semistructured

2.Object Oriented

3. object relational

4.ER

Q.what are types of Databases?

Ans 1.temporal

2.Sequence Database

3.time series Database

4.Spatial Database

5.Spatial Temporal Database

6.Text Database

7.Multimedia Database

Q. What are techniques used to remove noise?

Ans : 1.Binning

2.Regression

3.Clustering

Q.what is Build?

ANs: Process of converting source code into executable code given to testing

Q.what is change control?


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Ans:Change Management Process involves technical change analysis .Cost Benefit analysis and change

tracking.

Q.What are key factors considered by a board in making decisions on change?

ANs: 1.size of change

2. complexity of change

3. related systems

4.data when it is needed

5.impact on current and subsequent work

6.cost

7.possible alternatives

Q.what is SCM STANDARD?

ANS: ANSI IEEE 823-1983-1042-1028

Q.What Is demand paging?

ANs: O S copies a diskpage into physical memory only if an attempt is made to access it ( that is if page

fault occurs)

Q.WHAT ARE THE DISADVANTAGES OF DEMAND PAGING?

ANS: 1.MEMORY MANAGEMENT with page replacement algorithm becames more challenging

2.Individual programs face extra latency

Q. what is a dispatcher?

Ans:1.Long term scheduler

Decides which job to be admitted to ready queue

2. Midterm scheduler

Temporarily removes processes from main memory and places them on secondary memory

3. short term scheduler

Decides which of the ready in memory processes are to be executed.

Q.What are the functions of dispatcher?


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Ans: 1.switching context

2. switching to user mode

3.Jumping to the proper location in the user program to restart the program.

Q.What are conditions necessary for deadlock?

Ans: 1.Mutual Exclusion

2.Non Preemption

3.Circular Wait

Q.what are the methods of recovery from deadlock?

ANs: 1.process Termination (it involves either 1. Abort all processes or 2. Abort one process at a time

until deadlock cycle is eliminated)

2. resourse Preemption( issues to be addressed include 1.selecting the victim 2.rollback 3. Starvation)

Q. How is a Java file executed ?

Ans: step 1. Static methods are searched

Step 2. Java Vitual Machine uses a class loader to find binary representation of class

Step3 .once the class file is produced The class are linked before it is initialized.

Step 4. Linking

Q.what are the steps involved in linking?

Ans : 1.verification(check loaded representation of class is well formed from symbol table )

2.Preparation(involves allocation of static storage)

3.Resolution (process of checking symbolic references from the test ot other classes)

Q Name an error that is caused during Linking?

Ans Out of memory error

Q what are differences between new and malloc?

ANs: malloc requires special type casting which new does not need.

New required delete to free memory and incase of malloc freeing of memory is done by free keyword.

Q.what is task of formal technical review?


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Ans: it focuses on technical correctness of config object that has been modified.

IT also reviews the SCI to determines consistency with other SCI s .

Q.what are steps to configure TOMCAT server?

Ans: step 1.Install Java(set path after running setup)

Step 2.Unzip Tomcat( port change )

Step 3. Download Eclipse(or anyother editor and install it )

Step 4. Test Server.

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