Chapter:

90+ more mcqs Solved MCQs

in Advanced JAVA

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Master of Science in Information Technology (MSc IT) , Master of Science in Computer Science (MSc CS) , Bachelor of Business Administration in Computer Applications (BBA [CA]) , Programming Languages , Master of Science in Software Engineering (MSc SE) .

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51.	Which of these variables stores the number of hits that are successfully served out of cache?
A.	hits
B.	hitstocache
C.	hits_to_cache
D.	hits.to.cache
Answer» D. hits.to.cache

52.	Which of these method of httpd class is used to write UrlCacheEntry object into local disk?
A.	writediskcache()
B.	writetodisk()
C.	writecache()
D.	writediskentry()
Answer» A. writediskcache()

53.	Which of these is an instance variable of class httpd?
A.	port
B.	cache
C.	log
D.	all of the mentioned
Answer» D. all of the mentioned

55.	Which of these exception is thrown by URL class’s constructors?
A.	urlnotfound
B.	urlsourcenotfound
C.	malformedurlexception
D.	urlnotfoundexception
Answer» C. malformedurlexception

56.	Which of these methods is used to know host of an URL?
A.	host()
B.	gethost()
C.	gethost()
D.	gethost()
Answer» B. gethost()

57.	Which of these methods is used to know the full URL of an URL object?
A.	fullhost()
B.	gethost()
C.	externalform()
D.	toexternalform()
Answer» D. toexternalform()

58.	Which of these class is used to access actual bits or content information of a URL?
A.	url
B.	urldecoder
C.	urlconnection
D.	all of the mentioned
Answer» D. all of the mentioned

59.	Which object of HttpSession can be used to view and manipulate information about a session?
A.	session identifier
B.	creation time
C.	last accessed time
D.	all mentioned above
Answer» D. all mentioned above

60.	Which of these ways used to communicate from an applet to servlet?
A.	rmi communication
B.	http communication
C.	socket communication
D.	all mentioned above
Answer» D. all mentioned above

61.	Which methods are used to bind the objects on HttpSession instance andget the objects?
A.	setattribute
B.	getattribute
C.	both a & b
D.	none of the above
Answer» C. both a & b

62.	Which type of ServletEngine is a server that includes built-in support for servlets?
A.	add-on servletengine
B.	embedded servletengine
C.	standalone servletengine
D.	none of the above
Answer» C. standalone servletengine

63.	What type of servlets use these methods doGet(), doPost(),doHead, doDelete(), doTrace()?
A.	genereic servlets
B.	httpservlets
C.	all of the above
D.	none of the above
Answer» B. httpservlets

64.	Which cookie it is valid for single session only and it is removed each time when the user closes the browser?
A.	persistent cookie
B.	non-persistent cookie
C.	all the above
D.	none of the above
Answer» B. non-persistent cookie

65.	Which action tags are used in JSP for developing web application with Java Bean?
A.	jsp:usebean
B.	jsp:setproperty
C.	jsp:getproperty
D.	both b & c
Answer» D. both b & c

66.	Which technology do we mix our business logic with the presentation logic?
A.	servlet
B.	jsp
C.	both a & b
D.	none of the above
Answer» A. servlet

67.	Which tag is used to execute java source code in JSP?
A.	declaration tag
B.	scriptlet tag
C.	expression tag
D.	none of the above
Answer» B. scriptlet tag

68.	Which JSP Action tags is used to include the content of another resource,it May be jsp, html or servlet?
A.	jsp:include
B.	jsp:forward
C.	jsp:plugin
D.	jsp:papam
Answer» A. jsp:include

69.	In JSP how many ways are there to perform exception handling?
A.	3
B.	2
C.	4
D.	5
Answer» B. 2

70.	In JSP page directive which attribute defines theMIME(Multipurpose Internet Mail Extension) type of the HTTP response?
A.	import
B.	content type
C.	extends
D.	info
Answer» B. content type

71.	A JSP page consists of which tags?
A.	html tags
B.	jsp tags
C.	both a & b
D.	none of the above
Answer» C. both a & b

72.	What alternatives exist to embedding Java code directly within the HTML markup of your JSP page?
A.	moving the code into your session manager.
B.	moving the code into scriptlets.
C.	moving the code into javabeans and servlets.
D.	moving the code into a transaction manager.
Answer» C. moving the code into javabeans and servlets.

73.	What type of scriptlet code is better-suited to being factored forward into a servlet?
A.	code that deals with logic that is common across requests.
B.	code that deals with logic that is vendor specific)
C.	code that deals with logic that relates to database access.
D.	code that deals with logic that relates to client scope.
Answer» A. code that deals with logic that is common across requests.

74.	URL encoding is the method of replacing all the spaces and other extra characters into their corresponding _______ Characters?
A.	hex
B.	binary
C.	octal
D.	decimal
Answer» A. hex

75.	Which of the scripting of JSP not putting content into service method of the converted servlet?
A.	declarations
B.	scriptlets
C.	expressions
D.	none of the above
Answer» A. declarations

76.	What requires less resources?
A.	thread
B.	process
C.	thread and process
D.	neither thread nor process
Answer» A. thread

90+ more mcqs Solved MCQs

Which of these variables stores the number of hits that are successfully served out of cache?

Which of these method of httpd class is used to write UrlCacheEntry object into local disk?

Which of these is an instance variable of class httpd?

Which of these is an instance variable of httpd that is a Hashtable?

Which of these exception is thrown by URL class’s constructors?

Which of these methods is used to know host of an URL?

Which of these methods is used to know the full URL of an URL object?

Which of these class is used to access actual bits or content information of a URL?

Which object of HttpSession can be used to view and manipulate information about a session?

Which of these ways used to communicate from an applet to servlet?

Which methods are used to bind the objects on HttpSession instance andget the objects?

Which type of ServletEngine is a server that includes built-in support for servlets?

What type of servlets use these methods doGet(), doPost(),doHead, doDelete(), doTrace()?

Which cookie it is valid for single session only and it is removed each time when the user closes the browser?

Which action tags are used in JSP for developing web application with Java Bean?

Which technology do we mix our business logic with the presentation logic?

Which tag is used to execute java source code in JSP?

Which JSP Action tags is used to include the content of another resource,it May be jsp, html or servlet?

In JSP how many ways are there to perform exception handling?

In JSP page directive which attribute defines theMIME(Multipurpose Internet Mail Extension) type of the HTTP response?

A JSP page consists of which tags?

What alternatives exist to embedding Java code directly within the HTML markup of your JSP page?

What type of scriptlet code is better-suited to being factored forward into a servlet?

URL encoding is the method of replacing all the spaces and other extra characters into their corresponding _______ Characters?

Which of the scripting of JSP not putting content into service method of the converted servlet?

What requires less resources?

What does not prevent JVM from terminating?

What decides thread priority?

What should not be done to avoid deadlock?

What is true about threading?

Which of the following is a correct constructor for thread?

Which of the following will ensure the thread will be in running state?

Which of these are types of multitasking?

What will happen if two thread of the same priority are called to be processed simultaneously?

In a RMI Client Program, what are the exceptions which might have to handled?

Which is a one-way communication only between the client and the server and it is not a reliable and there is no confirmation regarding reaching the message to the destination?

An RMI Server is responsible for,

In RMI Distributed object applications need to do?

In RMI applications which program obtains a remote reference to one or more remote objects on a server and then invokes methods on them?

Which package is used for Remote Method Invocation (RMI)?

Java supports RMI, RMI Stands for?

Which is built on the top of socket programming?

Which is a one-way communication only between the client and the server and it
is not a reliable and there is no confirmation regarding reaching the message to
the destination?

77.	What does not prevent JVM from terminating?
A.	process
B.	daemon thread
C.	user thread
D.	jvm thread
Answer» B. daemon thread

78.	What decides thread priority?
A.	process
B.	process scheduler
C.	thread
D.	thread scheduler
Answer» D. thread scheduler

79.	What should not be done to avoid deadlock?
A.	avoid using multiple threads
B.	avoid hold several locks at once
C.	execute foreign code while holding a lock
D.	use interruptible locks
Answer» C. execute foreign code while holding a lock

80.	What is true about threading?
A.	run() method calls start() method and runs the code
B.	run() method creates new thread
C.	run() method can be called directly without start() method being called
D.	start() method creates new thread and calls code written in run() method
Answer» D. start() method creates new thread and calls code written in run() method

81.	Which of the following is a correct constructor for thread?
A.	thread(runnable a, string str)
B.	thread(int priority)
C.	thread(runnable a, int priority)
D.	thread(runnable a, threadgroup t)
Answer» A. thread(runnable a, string str)

82.	Which of the following will ensure the thread will be in running state?
A.	yield()
B.	notify()
C.	wait()
D.	thread.killthread()
Answer» C. wait()

83.	Which of these are types of multitasking?
A.	process based
B.	thread based
C.	process and thread based
D.	none of the mentioned
Answer» C. process and thread based

84.	What will happen if two thread of the same priority are called to be processed simultaneously?
A.	anyone will be executed first lexographically
B.	both of them will be executed simultaneously
C.	none of them will be executed
D.	it is dependent on the operating system
Answer» D. it is dependent on the operating system

85.	In a RMI Client Program, what are the exceptions which might have to handled?
A.	remoteexception
B.	notboundexception
C.	malformedurlexception
D.	all mentioned above
Answer» D. all mentioned above

86.	Which is a one-way communication only between the client and the server and it is not a reliable and there is no confirmation regarding reaching the message to the destination?
A.	tcp/ip
B.	udp
C.	both a & b
D.	none of the above
Answer» B. udp