All Subjects
FIA36 Questions

Computer — Operating Systems (Windows, Linux Basics) MCQs

Practice Computer — Operating Systems (Windows, Linux Basics) multiple-choice questions for FIA competitive exams. Each question includes the correct answer and a short explanation, and past-paper questions are marked so you can revise both repeated and fresh material in one place.

HTTP (Hypertext Transfer Protocol)
DNS (Domain Name System)
SMTP (Simple Mail Transfer Protocol)
FTP (File Transfer Protocol)
ExplanationDNS acts as the internet's phonebook, mapping domain names to IP addresses necessary for network communication.
MAC Spoofing
DHCP Leasing
Authentication
NAT Gatewaying
ExplanationDHCP (Dynamic Host Configuration Protocol) assigns temporary IP addresses (leases) to devices joining a network.
ICMP
POP3
SSH
SSL/TLS
ExplanationSSL/TLS encrypts data transmitted over HTTPS, providing secure communication channels and authentication.
The recipient's eligibility to receive messages.
The confidentiality of the email content through encryption.
That the sending server is authorized by the domain owner.
The path taken by the email across different servers.
ExplanationSPF records prevent spoofing by confirming that the IP addresses used to send the email are approved by the sender's domain.
Repeater
Hub
Switch
Router
ExplanationRouters examine the destination IP address and determine the best path across interconnected networks (WANs).
FTP
HTTP
DHCP
SMTP
ExplanationDHCP (Dynamic Host Configuration Protocol) manages and allocates IP addresses automatically, simplifying network setup.
Hub
Router
Switch
Repeater
ExplanationA Switch uses MAC addresses to filter and forward data frames only to the intended recipient within a LAN, unlike a Hub.
Address Resolution Protocol (ARP)
Dynamic Host Configuration Protocol (DHCP)
Internet Control Message Protocol (ICMP)
Transmission Control Protocol (TCP)
ExplanationARP facilitates local network communication by resolving the physical hardware address (MAC) corresponding to a known IP address.
POP3
SMTP
HTTP
FTP
ExplanationHTTP (Hypertext Transfer Protocol) is the foundational protocol for communication on the World Wide Web, enabling the transfer of web content.
Transport Layer
Network Layer
Data Link Layer
Application Layer
ExplanationThe Transport Layer (TCP/UDP) handles segmentation, reassembly, and flow control using connection identifiers like port numbers.
POP3 (Post Office Protocol v3)
IMAP (Internet Message Access Protocol)
FTP (File Transfer Protocol)
SMTP (Simple Mail Transfer Protocol)
ExplanationIMAP allows users to view and manage emails directly on the server, syncing changes across multiple devices, unlike POP3 which usually downloads and deletes messages.
Hub
Repeater
Router
Switch
ExplanationA router uses IP addressing to forward packets between different subnetworks, unlike a switch which operates within one segment.
Phishing
Vishing
Whaling
Spoofing
ExplanationPhishing is the act of acquiring sensitive information (like passwords) via deceptive emails or websites.
SMTP
FTP
IMAP
POP3
ExplanationIMAP (Internet Message Access Protocol) allows users to access and manage emails on the server, which is useful for multiple devices.
Increased network speed and bandwidth
Management of domain name system records
Automatic physical connection establishment
Confidentiality and integrity of data during transit
ExplanationSSL/TLS encrypts the connection between a client and a server, ensuring that data remains confidential and tamper-proof.
To prevent spam by verifying the sending IP address's authorized sender list.
To encrypt the entire body and headers of the email message.
To guarantee end-to-end decryption for the recipient only.
To block all unauthorized external recipients from receiving mail.
ExplanationSPF records are DNS entries that specify which IP addresses are authorized to send email on behalf of a domain, mitigating email spoofing.
Dynamic Host Configuration Protocol; automatically assigning IP addresses to devices on a network
Digital High Connectivity Platform; managing local network hubs
Deep Hyperlink Connection Protocol; ensuring secure web browsing
Data Handling Control Program; monitoring network bandwidth usage
ExplanationDHCP automatically manages and assigns unique IP addresses and other network settings to devices joining a network.
SMTP (Simple Mail Transfer Protocol)
IMAP (Internet Message Access Protocol)
POP3 (Post Office Protocol 3)
HTTP (Hypertext Transfer Protocol)
ExplanationIMAP allows users to manage emails remotely across multiple devices by syncing changes with the server, making it superior to POP3 for modern use.
Verify Packet Name, ensuring data integrity at the physical layer
Virtual Private Number, used for telephony routing protocols
Very Processed Node, handling routing in local area networks
Virtual Private Network, providing encrypted communication over public networks
ExplanationVPN uses encryption and tunneling to create a secure, private connection over the internet, masking the user's true IP address.
Hashing
Integrity Check
Authentication
Encryption
ExplanationEncryption is the process of converting plaintext into ciphertext, making it unreadable without the corresponding decryption key.
HTTPS
SFTP
HTTP
FTP
ExplanationHTTPS (Hypertext Transfer Protocol Secure) is the encrypted version of HTTP, ensuring secure data transmission.
Dynamic Data Stream
Distributed Denial of Service
Digital Disaster Sphere
Data Detection System
ExplanationDDoS is an attack that overwhelms a network with massive amounts of traffic from multiple sources, making it unavailable to legitimate users.
Domain Name System; translates domain names to IP addresses
Data Network Service; manages data transmission across networks
Digital Number Scheme; defines unique identifiers for hardware
Distributed Node Service; controls the flow of information packets
ExplanationDNS is the directory service that translates human-readable domain names (like example.com) into machine-readable IP addresses.
FTP
HTTP
SMTP
POP3
ExplanationHTTP (Hypertext Transfer Protocol) is the foundational protocol for communication on the World Wide Web, governing how web pages are requested and delivered.
Switch
Hub
Repeater
Router
ExplanationA router manages traffic between distinct networks, making it essential for wide-area connectivity.
Network Layer
Data Link Layer
Physical Layer
Transport Layer
ExplanationThe Network Layer handles logical addressing (IP) and determines the optimal path (routing) for data across interconnected networks.
Repeater
Hub
Switch
Router
ExplanationA Router directs traffic between separate networks (subnets) using IP addresses, making it a Layer 3 device.
DNS (Domain Name System)
DHCP (Dynamic Host Configuration Protocol)
HTTP (Hypertext Transfer Protocol)
FTP (File Transfer Protocol)
ExplanationDNS acts as the internet's phonebook, mapping domain names to specific IP addresses so devices can locate each other.
HTTP
DNS
SMTP
FTP
ExplanationDNS (Domain Name System) acts as the internet's phonebook, mapping domain names to their corresponding IP addresses.
FTP
SMTP
IMAP
POP3
ExplanationIMAP (Internet Message Access Protocol) is the standard protocol for synchronizing emails across multiple devices, keeping the messages available on the server. POP3 typically downloads and removes emails from the server.
HTTP
SMTP
DHCP
FTP
ExplanationDHCP (Dynamic Host Configuration Protocol) automatically assigns and manages IP configurations for devices on a network.
Bus Topology
Ring Topology
Mesh Topology
Star Topology
ExplanationIn a Bus Topology, all devices connect to a single main cable (backbone). If this backbone fails, the entire network segment goes down.
Universal Resource Location
Uniform Resource Locator
Unified Resource Link
User Router Link
ExplanationURL stands for Uniform Resource Locator, which provides the complete and specific address of a resource (web page) on the World Wide Web.
SMTP
IMAP
POP3
FTP
ExplanationIMAP (Internet Message Access Protocol) allows users to access and manage emails directly on the server, syncing across multiple devices. While POP3 downloads emails, IMAP is the primary protocol used for modern, multi-device access.
To manage physical cabling and network topology.
To encrypt data transfer between users.
To filter incoming malicious traffic (spam).
To translate human-readable domain names (like google.com) into numerical IP addresses.
ExplanationDNS acts as the internet's phonebook, converting memorable domain names into the unique IP addresses required for routing data.
FTP (File Transfer Protocol)
HTTP (Hypertext Transfer Protocol)
DNS (Domain Name System)
DHCP (Dynamic Host Configuration Protocol)
ExplanationDNS acts as the Internet's phonebook, mapping domain names to specific IP addresses necessary for connectivity.

Frequently Asked Questions

Are these Computer — Operating Systems (Windows, Linux Basics) MCQs free?

Yes. Every Computer — Operating Systems (Windows, Linux Basics) MCQ on this page is free to practice, including the correct answer and explanation.

Do these include past-paper questions?

Yes — questions sourced from past papers are clearly marked with a "Past Paper" badge, alongside fresh practice questions.

Which exams do these Computer — Operating Systems (Windows, Linux Basics) MCQs help with?

They are aimed at FIA and related Pakistani competitive exams that test Computer — Operating Systems (Windows, Linux Basics).

How should I practice subject-wise MCQs?

Attempt each question first, then reveal the answer and read the explanation. Short, focused sessions on one subject work better than long unstructured reading.

We use cookies

We use essential cookies to keep the platform running and analytics cookies to understand usage. You can accept or reject analytics and advertising cookies.