1. Which software is classified strictly as an Application Software that functions as a Web Client?
(A) Apache HTTP Server
(B) Mozilla Firefox
(C) Linux Kernel
(D) Oracle Database
Correct: (B) Mozilla Firefox
• Why correct: Firefox is client-side application software initiating requests to web servers.
• Why others wrong: Apache is a web server; Linux is an OS (System software); Oracle is a DBMS.
2. Which protocol is primarily used by web browsers to securely submit confidential user credentials to an e-commerce server?
(A) HTTP over Port 80
(B) HTTPS over Port 443
(C) FTP over Port 21
(D) Telnet over Port 23
Correct: (B) HTTPS over Port 443
• Why correct: HTTPS encrypts data using TLS/SSL, preventing eavesdropping and man-in-the-middle attacks.
• Why others wrong: HTTP, FTP, and Telnet transmit plaintext credentials over insecure channels.
3. Which part of the URL "https://www.karnataka.gov.in/kea" represents the Top-Level Domain (TLD)?
(A) https
(B) www
(C) .in (or .gov.in)
(D) /kea
Correct: (C) .in (country code TLD)
• Why correct: TLD is the highest level in the hierarchical DNS tree (.in = India, .com = commercial).
• Why others wrong: https is scheme; www is subdomain; /kea is directory path.
4. What is the fundamental role of DNS in web communications?
(A) To compress video streams
(B) To translate human domain names to numerical IP addresses
(C) To encrypt web passwords
(D) To store HTML files on hard drive
Correct: (B) Translate human domain names to numerical IP addresses
• Why correct: Humans remember names (e.g. google.com); routers route IP packets (e.g. 142.250.192.46).
5. Which of the following is NOT an open-source web browser engine?
(A) Blink
(B) Gecko
(C) Trident
(D) WebKit
Correct: (C) Trident
• Why correct: Trident (MSHTML) was Microsoft's proprietary closed-source engine used in Internet Explorer.
• Why others wrong: Blink, Gecko, and WebKit are completely open-source.
6. Which HTTP response code indicates that the requested web page does not exist on the server?
(A) 200 OK
(B) 302 Found
(C) 404 Not Found
(D) 500 Internal Error
Correct: (C) 404 Not Found — 4xx status codes signify client-side requested URL failures.
7. What is the default subnet mask for a standard Class C IPv4 address network?
(A) 255.0.0.0
(B) 255.255.0.0
(C) 255.255.255.0
(D) 255.255.255.255
Correct: (C) 255.255.255.0 — Class A = /8 (255.0.0.0), Class B = /16 (255.255.0.0), Class C = /24 (255.255.255.0).
8. In modern web standards, which HTML5 element is used to define navigation links?
(A) <navigate>
(B) <nav>
(C) <links>
(D) <menuitem>
Correct: (B) <nav> — Semantic HTML5 tag for main navigation menus.
9. What is the primary difference between a static webpage and a dynamic webpage?
(A) Static pages use CSS; dynamic pages do not
(B) Dynamic pages generate content in real-time via server-side processing/database
(C) Static pages load only on mobile phones
(D) Dynamic pages never use HTML
Correct: (B) Dynamic pages generate content in real-time — Static pages deliver fixed pre-stored HTML. Dynamic pages execute logic (PHP, Node, Python) and query databases.
10. What type of malware masquerades as legitimate software to deceive users into installing it?
(A) Trojan Horse
(B) Worm
(C) Spyware
(D) Ransomware
Correct: (A) Trojan Horse — Named after the Greek mythological trap. Worms self-replicate without host files; Ransomware encrypts files for extortion.