What is true about thread

Thread is a ligthweight Process

Threads shares heap memory of the Process

A Thread maintains its own stack

What is the difference between yield and sleep

sleep changes the state of the thread from Running to Waiting whereas yield changes the state of the thread for Running to Runnable

thread.sleep(1000) will sleep for 1 sec whereas with yield there is no such guarantee

both are static methods defined in the Thread class

Which two of the following methods are defined in class Thread start() run()Select state of the Thread New Runnable Running Dead

Select what is true about ExecutorService

It is used to create, invoke and schedule Asynchronous threads

It is used to create and manage Thread pool

It is used to submit a thread that can be completed in future

Select the type of thread pools that can be created using Executors class

Executors.newSingleThreadExecutor

Executors.newCachedThreadPool

Executors.newFixedThreadPool

Select the methods provided by the ExecutorService

execute(Runnable)

submit(Runnable) invokeAny()

What is true about shutdown() method

when shutdown method of the executorservice is called it will no

executorSerive.shutdown() waits till all the submitted

executorSerive.shutdown() is used for graceful

ExecutorService

more take any new task

tasks are completed

shutdown of the service

Select the components of JDBC DriverManager Statement Connection

Difference between Statement and PreparedStatement

Statement has to be compiled everytime whereas PreparedStatement are precompiled cached

Statement is suitable for DDL Operations, PreparedStatement is suitable for DML Operations

What is true about ResultSet interface

ResultSet returns one or more rows from the database table

When ResultSet is returned, it is positioned before first row

Select the ResultSet types in JDBC

TYPE_FORWARD_ONLY

TYPE_SCROLL_SENSITIVE

TYPE_SCROLL_INSENSITIVE

Select the JDBC driver types

Type 1: JDBC-ODBC driver

Type 2: Native-API driver

Type3: JDBC net driver

Type4: JDBC pure java driver

How the connection object is obtained in JDBC

getConnection(String url)

getConnection(String url, Properties prop)

getConnection(String url, String username, String password)

JDBC-ODBC Bridge support multiple concurrent open statements per connection? True or False FALSE

Select Junit Test classes Assert TestCase TestResult TestSuitWhat methods can be tested using Junit Default Public

Select the Junit assert statements

assertEquals(String message, String expected, String actual)

assertTrue(String message, boolean condition)

assertFalse(String message, boolean condition)

Select what is true about Junit Test case

Junit test case extends junit.framework.TestCase

All the Test methods are annotated with @Test

All the Test cases methods run independent of each other

All the Test cases methods should be declared void

Select the correct statement

If Junit Test method is declared to return a String  it will compile without any issue

You can also pass parameter to a Junit Test method

Select the utility Java provides to implement L18N and L10N java.util.locale

java.util.resourcebundle

What Localization relates to

Numeric, date and time formats Use of Currency

Keyboard usage

Symbols, icons and colors

Select the type of java.util.ResourceBundle provided by java

PropertyResourceBundle

ListResourceBundle

Select the methods of java.util.Locale

getAvailableLocales()

getDisplayLanguage() getLanguage()

Select the Locale constants Locale.CANADA

Locale.CANADA_FRENCH Locale.ITALY

Which of the following allows non repeatable read in JDBC Connection

TRANSACTION_REPEATABLE_READ

Which type of driver provides JDBC access via one or more ODBC drivers? Type 1When the message “No Suitable Driver” occurs?

When the JDBC database URL passed is not constructed properly

What is, in terms of JDBC, a DataSource?

A DataSource is a factory of connections to a physical data source

Which method is static and synchronized in JDBC API? getConnection()Which two of the following methods are defined in class Thread? start() run()Which three guarantee that a thread will

wait() sleep(1000) aLiveThread.join()

leave the running state?Which of these method is used to find out that a thread is still running or not? Alive()What is the default value of priority variable MIN_PRIORITY AND MAX_PRIORITY 1 & 10Which of these method is used to explicitly set the priority of a thread setPriority()How To Compile a JUnit Test Class? javacWhat Happens If a JUnit Test Method Is Declared as "private"? Runtime errorWhat should be the return type of a testMethod

void

in JunitWhat Happens If a Test Method Throws an Exception Runtime test fails

Compilation Succeeds

Queue can be used to implement

quick sort radix sort

A binary search tree whose left subtree and right subtree differ in hight by at most 1 unit is called ……

AVL tree

……………….. in which the model becomes compatible executable code

Implementation level

Stack is also called as

Last in first out

Which of the following is true about the characteristics of abstract data types?(i) It exports a type. ii) It exports a set of operations True, True

…………… is not the component of data structure.

None of the above

Which of the following is not the part of ADT description?

None of the above

Inserting an item into the stack when stack is not full is called …………. Operation and deletion of item form the stack, when stack is not empty is called ………..operation.

push, pop

……………. Is a pile in which items are added at one end and removed from the other. Queue………… is very useful in situation when data have to stored and then retrieved in reverse order. Stack

A directed graph is ………………. if there is a path from each vertex to every other vertex in the digraph.

Strongly Connected

In the …………….. traversal we process all of a vertex’s descendents before we move to an adjacent vertex.

Depth First

Identify the acceptable properties of Graph i) Network is a graph that has weights or costs associated with it. ii) An undirected graph which contains no cycles is called a forest. iii) A graph is said to be complete if there is no edge between every pair of vertices.

True, True, False

The number of comparisons done by sequential search is ……………… (N+1)/2In ……………, search start at the beginning of the list and check every element in the list.

Linear search

State True or False. i) Binary search is used for searching in a sorted array. ii) The time complexity of binary search is O(logn).

True, True

Which of the following is not the internal sort? Merge SortState True or False. i) An undirected graph which contains no cycles is called forest. ii) A graph is said to be complete if there is an edge between every pair of vertices.

True, True

A graph is said to be ……………… if the vertices can be split into two sets V1 and V2 such there are no edges between two vertices of V1 or two vertices of V2. BipartiteIn a queue, the initial values of front pointer f rare pointer r

0 and -1

should be …….. and ……….. respectively.In a circular queue the value of r will be ..

r=(r+1)% QUEUE_SIZE