Computer Network Quiz 3

✅ Answer: (b) Personal Area Network

PAN stands for Personal Area Network — a very short-range network connecting devices around a single person, like a phone paired with wireless earbuds via Bluetooth.

✅ Answer: (b) MAN (Metropolitan Area Network)

A MAN (Metropolitan Area Network) spans a city or a large campus — bigger than a LAN, but smaller in scope than a WAN, which can span countries or the whole globe.

✅ Answer: (a) Local Area Network

LAN stands for Local Area Network — a network confined to a small area like a single building, office, or school.

✅ Answer: (c) Spans a large geographic area, such as a country or the whole world

A WAN connects networks across large geographic distances — countries or continents. The Internet itself is the largest example of a WAN.

✅ Answer: (b) Star

In a star topology, every device connects directly to one central hub or switch — data between any two devices passes through that central point.

✅ Answer: (a) Hypertext Transfer Protocol

HTTP stands for Hypertext Transfer Protocol — the foundational protocol used to transfer web pages between a browser and a web server.

✅ Answer: (b) FTP (File Transfer Protocol)

FTP is specifically designed for uploading and downloading files between a client and a server, rather than for browsing web pages or handling email.

✅ Answer: (b) Sending emails

SMTP is the protocol responsible for sending outgoing emails from a client to a mail server, or between mail servers.

✅ Answer: (b) HTTPS (Hypertext Transfer Protocol Secure)

HTTPS adds an encryption layer (SSL/TLS) on top of regular HTTP, securing the data exchanged between a browser and a website — you can spot it via the padlock icon in the address bar.

✅ Answer: (a) Voice Over Internet Protocol

VoIP stands for Voice Over Internet Protocol — technology that transmits voice calls as data over the Internet, instead of traditional telephone lines.

✅ Answer: (b) Hypertext Markup Language

HTML stands for Hypertext Markup Language — the standard markup language used to structure and display content on web pages.

✅ Answer: (b) Storing and transporting structured data between systems

XML is designed purely to store and transport data in a structured, self-describing way — unlike HTML, it says nothing about how that data should look on screen; it just defines what the data is.

✅ Answer: (b) Identifying and locating a website (server) with a human-readable address

A domain name (like cbsepython.in) identifies a website/server as a whole, mapping to its underlying IP address in a human-readable way. (This question is corrected from a version that described it as identifying “a specific webpage” — that more precise job actually belongs to the full URL, which includes the domain plus a path to one exact page.)

✅ Answer: (a) Uniform Resource Locator

URL stands for Uniform Resource Locator — the complete web address (domain + path + more) that pinpoints one exact resource, like a specific page or file.

✅ Answer: (b) Hosting website files and serving web pages to client browsers on request

A web server stores a website’s files and responds to requests from client browsers by sending back the requested pages — the backbone of how every website is actually served to visitors.

✅ Answer: (b) All devices share a single common cable (the “bus” or backbone) to communicate

In a bus topology, all devices tap into one shared cable (the backbone) to send and receive data — simple and cheap to set up, but a break anywhere in that single cable can bring down the whole network.

✅ Answer: (b) A hierarchical structure combining multiple star networks connected together via a bus backbone

A tree topology is essentially a hierarchy of star networks linked by a central bus backbone — like branches growing from a trunk, making it well-suited for organizations with multiple departments or floors.

✅ Answer: (b) A smartphone connected to wireless earbuds via Bluetooth

A phone paired with Bluetooth earbuds is a textbook PAN example — a very short-range network built around a single person’s personal devices.

✅ Answer: (b) It’s the fundamental suite of protocols that governs how data is broken into packets, addressed, transmitted, and reassembled reliably across the Internet

TCP/IP (Transmission Control Protocol / Internet Protocol) is the core protocol suite underlying virtually all Internet communication — TCP handles reliable, ordered delivery of data broken into packets, while IP handles addressing and routing those packets to the right destination.

✅ Answer: (b) Downloading/retrieving emails from a mail server to a client

POP3 is used to retrieve emails from a mail server down to the client (like an email app), typically removing them from the server once downloaded — the counterpart to SMTP, which handles sending.