Network Applications: Master the Fundamentals of Networked Software

Question 1

Which application-layer protocol is primarily used for web browsing?

Accepted Answer

HTTP

Answer

TCP

Answer

SMTP

Answer

DNS

Question 2

What is the purpose of the Domain Name System (DNS)?

Accepted Answer

To translate human-readable domain names into machine-readable IP addresses

Answer

To provide email services

Answer

To secure web traffic

Answer

To manage network devices

Question 3

What is the primary function of an email client?

Accepted Answer

To send, receive, and manage email messages

Answer

To manage contacts and appointments

Answer

To browse the web

Answer

To create and edit documents

Question 4

Which email protocol provides secure transmission of email messages?

Accepted Answer

TLS

Answer

SMTP

Answer

IMAP

Answer

POP3

Question 5

Which of the following is a common application of a VPN?

Accepted Answer

Providing secure remote access to private networks

Answer

VoIP communication

Answer

Online gaming

Answer

Cloud storage

Question 6

What is the concept of 'layered architecture' in network applications?

Accepted Answer

Dividing network functionality into distinct layers, each performing specific tasks, to enhance modularity and flexibility

Answer

Creating a hierarchical structure of network components

Answer

Using a single layer for all network functions

Answer

Implementing network protocols in a sequential manner

Question 7

Which of the following is NOT a typical component of an email client?

Accepted Answer

FTP server

Answer

Inbox

Answer

Outbox

Answer

Compose window

Question 8

Which layer in the TCP/IP model is responsible for routing data packets?

Accepted Answer

Network layer

Answer

Application layer

Answer

Transport layer

Answer

Data Link layer

Question 9

What is the primary purpose of a firewall?

Accepted Answer

To prevent unauthorized access to a network

Answer

To detect and remove viruses and malware

Answer

To provide encryption for data in transit

Answer

To speed up web browsing by caching web pages

Question 10

Which of the following is an example of a peer-to-peer network application?

Accepted Answer

BitTorrent

Answer

HTTP

Answer

Email

Answer

VoIP

Question 11

What is the main advantage of using a content delivery network (CDN)?

Accepted Answer

Enhanced website performance and availability

Answer

Reduced bandwidth costs

Answer

Improved security

Answer

Boosted SEO ranking

Question 12

What is the primary purpose of the Hypertext Transfer Protocol (HTTP)?

Accepted Answer

Transferring web pages across networks

Answer

Initiating connections between clients and servers

Answer

Interpreting HTML code

Answer

Ensuring security for online transactions

Question 13

Which protocol is widely used for sending emails?

Accepted Answer

SMTP

Answer

FTP

Answer

DNS

Answer

TCP

Question 14

What is a firewall primarily designed to accomplish?

Accepted Answer

Preventing unauthorized access to a network

Answer

Detecting and blocking malicious software

Answer

Boosting network performance

Answer

Translating IP addresses

Question 15

Which of the following is not a layer in the TCP/IP model?

Accepted Answer

Session

Answer

Application

Answer

Transport

Answer

Network

Question 16

What is the main purpose of a Uniform Resource Locator (URL)?

Accepted Answer

Identifying specific resources on the internet

Answer

Establishing connections to servers

Answer

Transferring data across networks

Answer

Ensuring security for online transactions

Question 17

What is the HTTP request method used to retrieve data from a web server?

Accepted Answer

GET

Answer

POST

Answer

PUT

Answer

DELETE

Question 18

What is the name of the protocol used for email transmission?

Accepted Answer

SMTP

Answer

HTTP

Answer

FTP

Answer

TCP

Question 19

What is the purpose of a DNS server?

Accepted Answer

Translates domain names into IP addresses

Answer

Routes network traffic

Answer

Provides email services

Answer

Stores user data

Question 20

Which protocol is specifically designed for sending emails over networks?

Accepted Answer

SMTP

Answer

HTTP

Answer

POP3

Answer

IMAP

Question 21

What is the main function of the Domain Name System (DNS) protocol?

Accepted Answer

Translate domain names into IP addresses

Answer

Assign unique identifiers to internet users

Answer

Provide secure communication over the internet

Answer

Control data transmission on the internet

Question 22

What protocol ensures a reliable connection between a web browser and a web server?

Accepted Answer

TCP

Answer

HTTP

Answer

DNS

Answer

UDP

Question 23

Which protocol is responsible for setting up and managing network connections between computers?

Accepted Answer

TCP/IP

Answer

HTTP

Answer

DNS

Answer

SMTP

Question 24

Which of the following is NOT considered a network application?

Accepted Answer

Operating system

Answer

Web browser

Answer

Email client

Answer

Database management system

Question 25

In the OSI model, which layer is accountable for managing network traffic routing?

Accepted Answer

Network layer

Answer

Application layer

Answer

Transport layer

Answer

Data link layer

Question 26

What is the primary purpose of a DNS server?

Accepted Answer

Translating domain names into IP addresses

Answer

Storing email messages

Answer

Providing web hosting services

Answer

Managing network traffic

Question 27

Which of the following is NOT an advantage of utilizing a network application framework?

Accepted Answer

Increased code complexity

Answer

Reduced development time

Answer

Improved performance

Answer

Enhanced security

Question 28

Which of the following is a common application for peer-to-peer networks?

Accepted Answer

File sharing

Answer

Video conferencing

Answer

Email communication

Answer

Web browsing

Question 29

Which browser caching technique aims to improve website performance by storing commonly accessed web pages locally, reducing server workload?

Accepted Answer

Browser Cache

Answer

No Cache

Answer

Private Cache

Answer

Public Cache

Question 30

Load balancing distributes network traffic across multiple servers. How does this technique enhance the scalability and availability of network applications?

Accepted Answer

Scalability: Load balancing allows for adding more servers to handle increased traffic, making the application more scalable.

Accepted Answer

Availability: Load balancing ensures that if one server fails, the application remains available through the other servers.

Answer

Security: Load balancing does not enhance security by hiding individual servers from external attacks.

Question 31

Which of the following is a layer 7 protocol?

Accepted Answer

HTTP

Answer

TCP

Answer

UDP

Answer

IP

Question 32

Which of the following is NOT a component of a modern web browser?

Accepted Answer

Web server

Answer

JavaScript interpreter

Answer

HTML parser

Answer

URL parser

Question 33

Which of the following is a primary purpose of a web server?

Accepted Answer

Hosting and delivering web content

Answer

Providing network security

Answer

Routing email messages

Answer

Managing databases

Question 34

Which of the following is a primary goal of network security?

Accepted Answer

Safeguarding against unauthorized access and attacks

Answer

Managing user accounts

Answer

Optimizing network performance

Question 35

Which protocol is primarily responsible for sending and receiving emails?

Accepted Answer

SMTP (Simple Mail Transfer Protocol)

Answer

DNS (Domain Name System)

Answer

HTTP (Hypertext Transfer Protocol)

Answer

FTP (File Transfer Protocol)

Question 36

What is the primary function of a web browser?

Accepted Answer

To retrieve and display web pages from web servers.

Answer

To manage network connections.

Answer

To send and receive emails.

Answer

To store and manage user files.

Question 37

Which HTTP method is typically used to submit data to a server, such as form data?

Accepted Answer

POST

Answer

GET

Answer

PUT

Answer

DELETE

Question 38

What is the purpose of a Domain Name System (DNS) server?

Accepted Answer

To translate human-readable domain names into numerical IP addresses.

Answer

To provide email services.

Answer

To manage network traffic.

Answer

To store and manage user files.

Question 39

What is the primary purpose of a VPN (Virtual Private Network)?

Accepted Answer

To establish a secure and encrypted connection over a public network, enhancing privacy and security.

Answer

To manage network traffic.

Answer

To share files between devices.

Question 40

Which of the following is NOT typically considered a network application?

Accepted Answer

Operating system

Answer

File sharing software

Answer

Email client

Answer

Web browser

Question 41

What is the primary difference between TCP and UDP protocols?

Accepted Answer

TCP is a connection-oriented protocol, ensuring reliable data delivery, while UDP is a connectionless protocol, prioritizing speed over reliability.

Answer

TCP is faster, while UDP is more reliable.

Answer

TCP is used for emails, while UDP is used for web browsing.

Question 42

A user is downloading a large file from a remote server. What protocol is likely being used?

Accepted Answer

FTP (File Transfer Protocol)

Answer

SMTP (Simple Mail Transfer Protocol)

Answer

HTTP (Hypertext Transfer Protocol)

Question 43

What is a common security concern associated with using public Wi-Fi networks?

Accepted Answer

Man-in-the-middle attacks, where an attacker intercepts communication between the user and the intended website or service.

Answer

Slow internet speeds.

Answer

Virus infections.

Answer

Data loss due to network outages.