1. Which of the following can be done using the developer tools
in your browser? Select all that apply.
- Inspect the
HTML elements of a web page.
- Check JavaScript error logs.
- Inspect a timeline of HTTP requests and
responses.
- Upload images to the web server
- Inspect the performance and memory
usage of a webpage.
2. In software development, a library provides
_________________________.
- Reusable pieces
of code that can be used by your application.
- A structure for developers to build an application
with.
Explanation: During the process of developing software, a library is a
collection of pre-written, reusable code that developers may use to execute
common activities or functions. This eliminates the need for developers to
create the code from scratch. Libraries are intended to be a collection of
routines or modules that may be implemented into a software program. This makes
the process of developing the application easier and encourages the reuse of
code. The majority of the time, they provide a variety of functionality and
features that are simple to include into a variety of projects.
3. In software development, an API is _________________________.
- a set of
functions that an application component or service can provide.
- a text editor to write code with.
Explanation: An
application programming interface, often known as an API, is a collection of
rules and tools that are used in the process of developing software. Its
purpose is to enable various software programs to interact with one another.
Specifically, it specifies the procedures and data formats that applications
might use in order to seek and share information. APIs play a significant part
in facilitating the integration of various software systems, which in turn
enables these systems to function in a smooth manner with one another.
4. Which of the following are benefits of using an Integrated
Development Environment (IDE) such as Visual Studio Code? Select all that
apply.
- Syntax
Highlighting
- Error Highlighting
- Autocomplete
- IntelliSense
- Autodelete
5. A server is a computer that runs applications and services,
ranging from websites to instant messaging. You have just learned about a web
server which is a specific type of server. Which of the following statements
are true? Choose all that apply.
- Web servers don’t perform email management.
- Web servers can handle thousands of
requests from clients per second.
- A web server
can handle security.
- A web server can function as website
storage and administration.
6. Which of the following technologies is used to structure
content on a webpage?
- HTML
- CSS
- JavaScript
Explanation: Hypertext
Markup Language, or HTML, is the technology that is used to format the material
that is shown on a website. When it comes to the creation and organization of
material on the web, HTML is the standard markup language. A collection of
components or tags that form the structure of a website is provided by it.
These elements include headers, paragraphs, lists, links, pictures, and an
assortment of other elements.
CSS, which stands for cascading style sheets, is an additional
technology that is used in combination with HTML to manage the appearance and
styling of the content. JavaScript, on the other hand, is utilized for the
purpose of incorporating interactive features and dynamic behavior into
websites. However, HTML is the major technology that is used when it comes to
the creation of content structures.
7. True or false: A web browser is a software application that
you use to browse the world wide web.
- False
- True
Explanation: Indeed.
Users are able to access and traverse the World Wide Web via the use of a
software program known as a web browser. Web browsers such as Chrome, Firefox,
Safari, and Edge are among the most popular and widely used. They are
responsible for interpreting HTML, CSS, and JavaScript code in order to display
online content on a user's device. This material includes text, pictures, and
video. While navigating between various web sites, users have the option of
either entering web addresses (URLs) or clicking on links.
8. True or false: Cloud hosting uses a combination of physical
and virtual servers?
- False
- True
Explanation: Indeed.
Cloud hosting often necessitates the use of both physical and virtual servers
respectively. A cloud hosting environment is characterized by the presence of
actual servers that are housed in data centers. These physical servers are then
used to generate virtual servers. Through the use of virtualization technology,
it is possible to operate several virtual servers on a single physical server.
By constantly adding and deleting virtual servers, cloud hosting companies are
able to dynamically assign resources and scale their services in response to
fluctuations in demand. The flexibility and scalability of cloud hosting are
two of its most important characteristics.
9. Is the following statement true or false? The payload part of
IP packets supports multiple protocols to make sure that information arrives as
expected. Two of these are Transmission Control Protocol (TCP) and User
Datagram Protocol (UDP). UDP is used to send data that must arrive correctly
and in order.
- True
- False
Explanation: Refuted.
The assertion is not founded on reality. There are a number of protocols that
may be supported by the payload portion of IP packets. These protocols include
Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). Because
it does not guarantee the delivery of packets or the sequence in which they are
received, UDP is often used for applications that are able to withstand a
certain amount of data loss. In contrast, Transmission Control Protocol (TCP)
is a connection-oriented protocol that guarantees the transmission of data in a
dependable and organized manner. When it is necessary for data to arrive in the
proper order and in the correct sequence, TCP is a better option than UDP.
10. Which of the following web resources can be transferred
using HTTP? Select all that apply.
- HTML Documents
- Images
- Files
11. In the first example of a digital clock, which type of file
ensured that the display updated with the correct time?
- The JavaScript file
- The CSS file
- The HTML file
Explanation: When
it comes to a digital clock that displays the proper time, the file that
guaranteed the display was updated with the correct time is most likely a
script that was written in a programming language such as JavaScript.
JavaScript is a programming language that enables web pages to exhibit dynamic
and interactive behavior. Additionally, it may be used to alter the content of
the page directly in real time.
When it comes to a digital clock, JavaScript may be used to
obtain the current time from the user's device and then update the display in
accordance with that information. Either the JavaScript code would be included
within the HTML content itself or it would be linked as an external script
file. This would ensure that the clock would update dynamically without the
need for the website to be refreshed.
12. Think of your favorite interactive map, social media site or
video content site. What features and functionality do you think web
applications provide to their users? Select all that apply.
- Personalized content.
- A high level of interactivity.
- Dynamically updated content.
13. As a developer, there are several web browser developer
tools available to you. For example, there is a console tab that outputs
JavaScript logs and errors from a web application. Which of the following
statements are true? Choose all that apply.
- The Sources tab shows all content
resolved for the current page.
- The Network tab
allows you to inspect the timeline and details of HTTP requests and
responses for a webpage.
- The Memory tab displays the parts of
your code that are consuming the most resources.
- The Performance tab shows all of the information
from all of the different tabs in one place.
14. To reduce development time, developers use libraries in
their application development. What’s the main feature of a library?
- Reusable pieces of code.
- A structure for developers to build with.
Explanation: When it comes to application development, the most important
aspect of a library is that it offers reusable chunks of code, functions, or
routines that developers can use to carry out typical operations without having
to build the code from scratch. Code that has been pre-written and tested is
often included inside libraries. This code may be readily incorporated into an
application, which assists developers in saving time and effort.
15. You are building a website with a team of developers. The
team lead refers to APIs as gateways. Is this a correct use of terminology?
- Yes
- No
Explanation: There are occasions when the word "gateway" is used
informally to refer to application programming interfaces (APIs), however this
is not the most exact or correct terminology. In the context of application
programming interfaces (APIs) and web development, better terms to use would be
"interface" or "endpoint."
16. An integrated development environment, or IDE, is software
for building applications. This kind of software application has many different
features to help you as a developer. Which of the following statements are
true? Choose all that apply.
- Special keywords of the programming
language are highlighted in different colors to make the code easier to
read.
- IDEs have a feature called Error
Highlighting.
- IDEs have a feature that can detect
variables and functions and offer them as suggestions during autocomplete.
- Refactoring is a process that changes the structure
and functionality of the code.
17. When two computers connect directly to each other, this
forms ______________.
- the Internet
- a Network
- a Server
Explanation: This
kind of connection is known as a point-to-point connection, and it occurs when
two computers connect directly to one other.
18. The programs that run on a computer are called the
______________.
- Hardware
- Software
Explanation: Software
is the term used to refer to the programs that are executed on a computer.
19. The structure of a web page is defined using ______________.
- HTML
- CSS
- JavaScript
Explanation: Internet
Hypertext Markup Language (HTML) is the language that is used to describe the
structure of a web page.
20. The style of a web page is defined using ______________.
- HTML
- CSS
- JavaScript
Explanation: A web
page's style may be specified with the help of CSS, which stands for cascading
style sheets.
21. Computers communicate with each other using which protocol?
- Network Protocol
- Mail Protocol
- Mobile Protocol
- Internet Protocol
Explanation: There
are many different protocols that computers use to interact with one another;
however, the Internet Protocol (IP) is one of the most often used protocols.
22. To communicate with another computer on a network, your
computer sends a message called an __________________.
- IP Packet
- IP Mail
- IP Container
Explanation: A
communication known as a packet is sent by your computer in order to interact
with another computer that is connected to a network.
23. The web browser and web server use which protocol to
transfer data?
- DNS
- SMTP
- HTTP
- IMAP
Explanation: For
the purpose of data transport, both the web browser and the web server make use
of the Hypertext transport Protocol (HTTP).
24. In software development, a framework provides a structure
for developers to build an application.
- True
- False
Explanation: That's
just right! When it comes to the creation of software, a framework does, in
fact, provide developers a structure and a collection of tools that allow them
to construct programs in a more effective manner. As a result, developers are
able to concentrate on the particular needs of their application since it often
contains predefined functions and libraries that make it easier to do typical
tasks.
25. As a developer, it is best to use a _____________ to write
and maintain code.
- Word Processor
- Integrated Development Environment
- Web Browser
- Development Book
Explanation: When
it comes to writing and maintaining code, it is more effective for a developer
to make use of an Integrated Development Environment (IDE). An integrated
development environment (IDE) is a software program that is all-encompassing
and offers a variety of tools and capabilities to simplify the process of
coding. In most cases, it consists of a code editor, a debugger, a compiler,
and several additional tools that work together to make the development process
more structured and efficient.
26. In software development, an API is a set of functions that
an application component or service can provide.
- True
- False
Explanation: An
program Programming Interface, or API, is a collection of rules and protocols
that, when used in software development, make it possible for one software
program to communicate with another software application. Specifically, it
specifies the procedures and data formats that applications might use in order
to seek and share information. Even though application programming interfaces
(APIs) do comprise functions, they are more than simply a means of giving
functions; rather, they encompass a more comprehensive set of rules for
communication between various software components.