Computer Architecture And Organization Set 11

Computer Science Engineering (CSE)

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This set of Computer Architecture and Organization Multiple Choice Questions & Answers (MCQs) focuses on Computer Architecture And Organization Set 11

Q1 | E-mail is                    
  • loss-tolerant application
  • bandwidth-sensitive application
  • elastic application
  • none of the mentioned
Answer: elastic application
Explaination:
because it can work with available throughput.
Q2 | Pick the odd one out.
  • file transfer
  • file download
  • e-mail
  • interactive games
Answer: interactive games
Explaination:
file transfer, file download and email are services provided by the application layer and there are message and data oriented.
Q3 | Which of the following is an application layer service?
  • network virtual terminal
  • file transfer, access, and management
  • mail service
  • all of the mentioned
Answer: all of the mentioned
Explaination:
the services provided by the application layer are network virtual terminal, file transfer, access and management, mail services, directory services, various file and data operations.
Q4 | Which is a time-sensitive service?
  • file transfer
  • file download
  • e-mail
  • internet telephony
Answer: internet telephony
Explaination:
internet telephony is loss- tolerant other applications are not.
Q5 | Transport services available to applications in one or another form
  • reliable data transfer
  • timing
  • security
  • all of the mentioned
Answer: all of the mentioned
Explaination:
the transport services that are provided to application are reliable data transfer, security and timing. these are very important for proper end to end services.
Q6 | Electronic mail uses which Application layer protocol?
  • smtp
  • http
  • ftp
  • sip
Answer: smtp
Explaination:
email uses various protocols like smtp, imap and pop. the most prominent one used in application layer is smtp.
Q7 | RMI stands for?
  • remote mail invocation
  • remote message invocation
  • remaining method invocation
  • remote method invocation
Answer: remote method invocation
Explaination:
the rmi (remote method invocation) is an api that provides a mechanism to create distributed applications.
Q8 | A remote object is an object whose method can be invoked from another virtual environment.
  • true
  • false
  • topic 5.2 client server programming
Answer: true
Explaination:
the statement is true. jvm is java virtual environment. rmi uses stub and skeleton object for communication with the remote object. a remote object is an object whose method can be invoked from another virtual environment.
Q9 | A typical                    program creates some remote objects, makes references to these objects accessible, and waits for clients to invoke methods on these objects.
  • server
  • client
  • thread
  • concurrent
Answer: server
Explaination:
a server program creates remote objects. it gives reference to these objects and then waits for clients to invoke methods on these objects.
Q10 | A typical                      program obtains a remote reference to one or more remote objects on a server and then invokes methods on them.
  • server
  • client
  • thread
  • concurrent
Answer: client
Explaination:
a client program obtains a remote reference to one or more remote objects on a server. it then invokes methods on them.
Q11 | The                        layer, which provides the interface that client and server application objects use to interact with each other.
  • increasing
  • count
  • bit
  • stub/skeleton
Answer: stub/skeleton
Explaination:
the stub or skeleton layer
Q12 | A layer which is the binary data protocol layer.
  • stub layer
  • skeleton layer
  • remote layer
  • transport protocol
Answer: transport protocol
Explaination:
the transport protocol layer is the binary data protocol that sends remote object requests over the wire. a client is any remote application that communicates with these server objects.
Q13 | A middleware layer between the stub skeleton and transport.
  • remote layer
  • instruction layer
  • reference layer
  • remote reference layer
Answer: remote reference layer
Explaination:
the remote reference layer is the middleware between the stub/skeleton layer and underlying transport protocol.
Q14 | An object acting as a gateway for the client side.
  • skeleton
  • stub
  • remote
  • server
Answer: stub
Explaination:
the stub is an object that acts as a gateway for the client side. the outgoing requests are passed through the stub.
Q15 | A gateway for the server side object.
  • skeleton
  • stub
  • remote
  • server
Answer: skeleton
Explaination:
the skeleton is an object, acts as a gateway for the server side object. all the incoming requests are routed through it.
Q16 | RMI uses stub and skeleton for communication with the                  object.
  • client
  • remote
  • server
  • any
Answer: remote
Explaination:
rmi uses stub and skeleton object for communication with the remote object. a remote object is an object whose method can be invoked from another jvm.
Q17 | A piece of icon or image on a web page associated with another webpage is called
  • url
  • hyperlink
  • plugin
  • extension
Answer: hyperlink
Explaination:
urls are locators for resources present on the world wide web. a plugin provides extra functionality to the webpage. an extension provides modification allowance for the core functionality of a webpage. hyperlink is piece of icon or image on a web page associated with another webpage.
Q18 | Dynamic web page              
  • is same every time whenever it displays
  • generates on demand by a program or a request from browser
  • both is same every time whenever it displays and generates on demand by a program or a request from browser
  • is different always in a predefined order
Answer: generates on demand by a program or a request from browser
Explaination:
a dynamic web page provides different content every time the user opens it based on some events like new additions or time of the day. languages such as javascript are used to respond to client-side events while languages such as php as used to respond to server-side events.
Q19 | What is a web browser?
  • a program that can display a web page
  • a program used to view html documents
  • it enables user to access the resources of internet
  • all of the mentioned
Answer: all of the mentioned
Explaination:
a web browser is an application program that is used to access the world wide web resources, applications and websites. some examples of web browsers are google chrome, internet explorer and safari.
Q20 | Common gateway interface is used to
  • generate executable files from web content by web server
  • generate web pages
  • stream videos
  • download media files
Answer: generate executable files from web content by web server
Explaination:
cgi is an interface through servers can run execute console-based executable files on a web server that generates dynamic web pages. a cgi script executes only when a request is made. the script then generates html.
Q21 | URL stands for                  
  • unique reference label
  • uniform reference label
  • uniform resource locator
  • unique resource locator
Answer: uniform resource locator
Explaination:
the uniform resource locator
Q22 | A web cookie is a small piece of data that is                
  • sent from a website and stored in user’s web browser while a user is browsing a website
  • sent from user and stored in the server while a user is browsing a website
  • sent from root server to all servers
  • sent from the root server to other root servers
Answer: sent from a website and stored in user’s web browser while a user is browsing a website
Explaination:
a web cookie is a small piece of data sent from a website and stored in user’s web browser while a user is browsing the website and is used to remember stateful information about the user’s operations on the website. this can help the website provide a better browsing experience to the user.
Q23 | Which one of the following is not used to generate dynamic web pages?
  • php
  • asp.net
  • jsp
  • css
Answer: css
Explaination:
css alone cannot be used to generate dynamic web pages as it does not provide many event handling functions. it can
Q24 | What is document object model (DOM)?
  • convention for representing and interacting with objects in html documents
  • application programming interface
  • hierarchy of objects in asp.net
  • scripting language
Answer: convention for representing and interacting with objects in html documents
Explaination:
dom is a hierarchical model
Q25 | AJAX stands for                
  • asynchronous javascript and xml
  • advanced jsp and xml
  • asynchronous jsp and xml
  • advanced javascript and xml
Answer: asynchronous javascript and xml
Explaination:
ajax is a group of technologies that works on the client-side to create asynchronous web applications. it is used to modify only a part of a webpage and not the whole webpage whenever some event occurs.
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