Service-Oriented Architecture Coursera Quiz Answers

All Weeks Service-Oriented Architecture Coursera Quiz Answers

Service-Oriented Architecture Coursera Quiz Answers

Week 1: Service-Oriented Architecture

Q1. You are probably using the internet to do some of your personal banking. There is a page that shows your accounts and their balances, often called something like “Account Summary” or “Account Overview.” You must click on an account to begin managing it. Which type of web page is this?

static web page
web service
dynamic web page
web app

Q2. Another web page allows interacting with a spreadsheet in a browser. You can enter in values, sum them up, perform operations on them, format them, etc. What type of web page is this?

static web page
web app
web service
dynamic web page

Q3. Consider the two statements. Choose the one correct option.

JSON is a markup language

JSON can easily be converted into a Javascript object

Both statements are correct
Only the first statement is correct
Neither statement is correct
Only the second statement is correct

Q4. Which of these is NOT a basic standard of the World Wide Web?

FTP
TCP
HTTP
URL

Q5. There is an HTTP method that allows you to send, create or update a resource, but allows the server to decide its location and identity. Which HTTP method is this?

POST
GET
SEND
PUT

Q6. Which of these is often used to add dynamic content to a web page?

HTML
HTML DOM
CSS
Javascript

Q7. What are the three high-level components involved in a remote procedural call?

IDL source code, IDL compiler, interface headers
client stub, compiler, server stub
marshal, client, server
client, server, interface definition language

Q8. The process of establishing a connection between the client stub and server stub is called…

handshaking
binding
interfacing
marshalling

Q9. What are the advantages of Common Object Request Broker Architecture (CORBA)? Choose the two correct answers.

It allows for object-oriented paradigms in distributed computing
Dynamic binding is simple
Objects are essentially independent of their physical or virtual location.
Method calls can be treated locally or remotely

Q10. Which of these are desirable characteristics of a web service? Select the three correct answers.

modular
platform-independent
composable
simple

Q11. Which of these responsibilities does the client stub have in a middleware-based architecture that uses RPC? Choose the three correct answers.

Invoking the remote procedure call over the network
Formatting and encoding data into standardized messages
Invoking the server application directly
Establishing a connection with the server

Q12. What is the main difference between a web service and a web application?

Web services are mostly meant for business applications
Web applications dynamically generate content
Web services are simpler
Web applications are presented through a browser

Week 2: Introduction to Web Services

Q1. What standard is used for all aspects of web service development in this module, from describing interfaces to publishing and discovering services?

XML
SOAP
UDDI
WSDL

Q2. What are the two major styles of SOAP requests?

request-response
RPC style
document style
envelope

Q3. Which of these message patterns are typical of asynchronous messaging? Choose two correct answers.

request-response
one-way
solicit-response
notification

Q4. Your web browser has an add-on that is alerted when your favourite blog has a new post. Which messaging pattern is this?

solicit-response
one-way
notification
request-response

Q5. An important part of a WSDL (Web Service Description Language) file is a section that describes how services are invoked. For example, this section includes the style of interaction (document or RPC), the transport protocol, and how messages are turned into XML. What is this section?

interfaces
types
services
bindings

Q6. Consider the two statements. Choose the one correct option.

SOAP messages can only be sent over HTTP
Every SOAP message needs a header

Only the first statement is true
Only the second statement is true
Both statements are true
Neither statement is true

Q7. Consider the two statements. Choose the one correct option

WSDL can be used to describe non-XML based web services
A WSDL document can import other WSDL documents to gain access to their specifications

Only the first statement is true
Only the second statement is true
Both statements are true
Neither statement is true

Q8. UDDI covers two aspects of web service development. Which ones? Choose the two correct answers.

publishing
security
discovery
composition

Q9. The green pages of UDDI contain which data structures? Choose the two correct answers.

tModel
bindingTemplate
businessService
businessEntity

Q10. Consider the following two statements. Choose the one correct option

Binding to a service is usually a run-time activity
UDDI uses web services for publishing and discovering

Only the first statement is true
Only the second statement is true
Both statements are true
Neither statement is true

Q11. WS-BPEL covers what aspect of web services?

security
composition
publishing
encryption

Q12. Which part of a WSDL 2.0 description gives concrete information about the ports to be used for the service?

portTypes
services
bindings
interfaces

Week 3: REST Services

Q1. REST uses several HTTP methods to communicate. Which HTTP method should not make a change to data on the server?

Enter answer here

Q2. Which of these are constraints of REST architectures? Choose the three correct answers.

Interactions rely on state
Clients can cache responses
Layered and client-server based
Uniform interface for communication

Q3. According to REST best practices, where should you specify what format the input and output messages are in?

sub-resources in the URI
HTTP headers
Parameters in the URI
XML schema

Q4. Which of these are acceptable REST URIs according to best practices? Choose the two correct answers.

/students/
/students/3/
/student/
/getstudent/

Q5. Which of these is NOT used in developing RESTful web services?

simple text
XML
JSON
SOAP

Q6. By convention, which HTML method is usually used to create a new resource?

PUT
DELETE
POST
PATCH

Q7. What is the recommended way to not break functionality if your RESTful API is being used by many users?

Refactor the service, keeping the API the same
Subscribe your service consumers to change notifications
version your API
Describe your service with WSDL

Q8. Which of these best describes microservices?

Web service architectures consisting of lots of small, modular services
Migrating business functionality into a set of services incrementally instead of all at once
a variation of SOA applied on an application scale
Replicating services and modifying them to fill other roles

Q9. Consider the two statements. Choose the one correct option.

Microservices must be in the same language and framework
Microservices can be replicated for scaling

Only the first statement is true
Only the second statement is true
Both statements are true
Neither statement is true

Q10. Which are the advantages of microservices? Choose the two correct answers.

Testing is simple
Performance is very good
Services can be scaled independently
Small teams can develop microservices quickly

Q11. How can you pass parameters in a REST call? Select the two correct answers.

In XML
In the URL
In the HTTP header
In the SOAP header

Q12. Consider the following two statements about RESTful web services. Choose the one correct option

Requests can be sent in simple text
PUT is usually used to create new resource

Only the first statement is true
Only the second statement is true
Both statements are true
Neither statement is true

Week 4: Applying Service-Oriented Architecture

Q1. Marlon is creating a web page. It’s a simple page, which has a list of his current projects, a short bio about himself, and some GIF images of some of those same projects that he uploaded to the server himself. What type of web page is this?

web app
dynamic web page
web service
static web page

Q2. Which of these examples is a web application?

a blog
online poker
a website conducting a survey
an online shopping platform

Q3. Which of these formats can be used to express and structure content to be sent over the internet? Choose the three correct answers:

HTML
XML
CSS
JSON

Q4. What are the essential parts of an HTTP request? Choose the three correct answers.

request-line
a message body
a blank space
headers

Q5. Which of these are essential parts of an HTTP server response? Choose the two correct answers.

response-line
a message body
status-line
headers

Q6. Consider the following two statements about Javascript. Choose the one correct option.

It can allow you to generate content within the browser
A Javascript file must be sent in addition to an HTML file

Only the first statement is true
Only the second statement is true
Both statements are true
Neither statement is true

Q7. What is the term for the action that converts the parameters into a standardized message on the client side?

marshalling
blocking
binding
invocation

Q8. Consider the following two statements about middleware and RPC. Choose the one correct option.

RPC (Remote Procedure Call) is a form of middleware
The IDL (Interface Definition Language) is responsible for generating stubs

Only the first statement is true
Only the second statement is true
Both statements are true
Neither statement is true

Q9. Which of these can be found in Common Object Request Broker Architecture (CORBA)? Choose the three correct answers.

client and server stubs
interface definition language
object request broker
facilities

Q10. What are some disadvantages of CORBA? Choose the two correct answers.

Objects are always called remotely
Clients and servers must be implemented in the same language
Implementation is difficult
Dynamic binding is impossible

Q11. In what format are SOAP messages represented?

JSON
SOAP formatting is not based on any other format
XML
HTML

Q12. Which part of a SOAP message can be included but is NOT required?

HTTP method
envelope
header
body

Q13. True or False: a SOAP message must be sent over HTTP.

True
False

Q14. Which type of description will a service requester need to bind to a web service?

UDDI
WS-Description
WSDL
SOAP

Q15. Which section of WSDL 2.0 contains concrete information like physical ports and mapping interfaces to endpoints?

interfaces
services
portTypes
bindings

Q16. What does the types section of a WSDL 2.0 document allow developers to do?

Define abstract data types
Specify document-style or RPC-style interaction
Specify which communications protocol is used (HTTP, SMTP…)
Specifies the type of interaction (request-response, solicit-response…)

Q17. Which aspects of web services does UDDI allow you to implement? Choose the two correct answers.

invocation
publication
discovery
composition

Q18. In which section of a UDDI description will you find information like the category of business and service?

green pages
white pages
blue pages
yellow pages

Q19. Under which data structure of UDDI will you find a reference to the WSDL description?

businessService
serviceInterface
businessEntity
tModel

Q20. What is the difference between coordination and composition in the context of services?

coordination can only be done in a synchronous way
composition exposes a combination of services as another service
coordination is focused on pairwise interactions
composition uses only objects

Q21. Consider the following two statements. Choose the one correct option.

WS-BPEL only allows you to compose services out of basic services.
WS-BPEL has other features such as conditional logic and the ability to store state.

Only the first statement is true
Only the second statement is true
Both statements are true
Both statements are false

Q22. What does it mean that RESTful services are cacheable?

the client can store a version of the server’s response
the service logic can be stored on the client
the server can store the state of the interaction
the server can queue and prioritize requests

Q23. Which of these formats can be used within the invocation of a REST service? Choose the three correct answers.

WSDL
JSON
XML
simple text

Q24. Which of these is a good name for a REST resource? In other words, which of these resource names follow best practices? Choose the two correct answers.

/cars/2
/getCar/2
/car/2
/cars/2/tires

Q25. You received an HTTP status code 201 from the server, which means that a resource was created. In a well-designed REST service, which HTTP methods did you send to the server?

GET
POST
DELETE
PUT

Q26. Which of these elements in the HTTP header of a request specifies the format of the response?

Accept:
Host
Content-Encoding:
Content-Type:

Q27. What is the most important difference between WS*-style web services (which utilize SOAP, WSDL, etc.) and RESTful web services?

RESTful services are simpler
WS* are more secure
They do not use the same transfer protocol
Their differences are very minor

Q28. Where are the formats of the input and output data specified, according to REST best practices?

In the HTTP request in JSON format
In the HTTP request in XML format
In the HTTP header
As parameters in the URL

Q29. What are some advantages of microservices architecture? Select the two correct answers.

Services can be developed in different languages
Scaling through replication
Good performance
No centralized management

Q30. Consider the following two statements about microservices architecture. Choose the one correct option.

Communication between microservices is stateless
Testing microservice architecture is complex

Only the first statement is true.
Only the second statement is true
Both statements are true
Neither statement is true

Get All Course Quiz Answers of Software Design and Architecture Specialization

Object-Oriented Design Coursera Quiz Answers

Design Patterns Coursera Quiz Answers

Software Architecture Coursera Quiz Answers

Service-Oriented Architecture Coursera Quiz Answers

Service-Oriented Architecture Coursera Quiz Answers – Networking Funda

All Weeks Service-Oriented Architecture Coursera Quiz Answers