⚡ ADVITIYA 2-STEP OPTION ELIMINATION PROTOCOL
Step 1: The Outlier Filter: Look for options with absolute words like "Always", "Never", or completely mismatched protocols. Eliminate immediately.
Step 2: The Binary Pair Trap: If Option B and Option C say opposite things (e.g., "Connection-oriented" vs "Connectionless"), the correct answer is ALMOST ALWAYS one of these two!
1. Which layer of the OSI model is responsible for end-to-end reliable transmission and port addressing?
(A) Network Layer
(B) Transport Layer
(C) Data Link Layer
(D) Session Layer
Correct: (B) Transport Layer — Protocol ports (TCP/UDP) live at Transport Layer. Network layer only handles IP addresses.
2. Which of the following is an example of an open-source, non-Chromium web browser rendering engine?
(A) Blink
(B) Gecko
(C) WebKit
(D) V8
Correct: (B) Gecko — Gecko powers Mozilla Firefox. Blink powers Chrome & Edge; WebKit powers Safari; V8 is a JS engine, not rendering engine!
3. In the URL "https://adwitiya.com:443/courses", what does ":443" specify?
(A) IP address octet
(B) TCP port number
(C) SSL cipher key
(D) Subnet mask
Correct: (B) TCP port number — Standard port 443 is the default port for secure HTTPS web traffic.
4. What is the length of an IPv6 address compared to IPv4?
(A) 32-bit vs 16-bit
(B) 128-bit vs 32-bit
(C) 64-bit vs 32-bit
(D) 256-bit vs 64-bit
Correct: (B) 128-bit vs 32-bit — IPv4 is 32 bits (4 octets); IPv6 is 128 bits (8 groups of 4 hexadecimal characters).
5. Which of the following software applications acts as a Web Server Daemon?
(A) Google Chrome
(B) Nginx
(C) FileZilla
(D) Postman
Correct: (B) Nginx — Nginx and Apache are web servers. Chrome is a browser (client); FileZilla is FTP client; Postman is an API tester.
6. The Domain Name System (DNS) primarily translates:
(A) Binary to Hexadecimal
(B) Domain Name to IP Address
(C) HTML to CSS
(D) IPv4 to IPv6
Correct: (B) Domain Name to IP Address — Acts like the Internet's telephone directory (e.g. google.com → 142.250.192.46).
7. Which HTTP response status code signifies that a resource was moved permanently?
(A) 200 OK
(B) 301 Moved Permanently
(C) 404 Not Found
(D) 500 Internal Server Error
Correct: (B) 301 — 2xx = Success, 3xx = Redirection (301 = permanent), 4xx = Client error, 5xx = Server error.
8. Which technology is strictly used for client-side structure and semantic markup in modern websites?
(A) PHP
(B) HTML5
(C) Node.js
(D) SQL
Correct: (B) HTML5 — HTML provides markup/structure. PHP and Node.js are server-side runtimes; SQL is for databases.
9. In symmetric encryption, how many cryptographic keys are shared between sender and receiver?
(A) 1 Secret Key
(B) 2 Key Pair (Public/Private)
(C) 3 Session Keys
(D) No key needed
Correct: (A) 1 Secret Key — Symmetric = single secret key. Asymmetric (Public Key Crypto) = 2 keys (Public + Private).
10. Which protocol operates at the Application Layer to securely transfer files over SSH?
(A) FTP
(B) SFTP
(C) TFTP
(D) Telnet
Correct: (B) SFTP — SFTP runs over SSH (Port 22). FTP (Port 21) transmits plain text without encryption.
• First Pass (0–20 min): Answer direct definition questions immediately.
• Second Pass (20–40 min): Solve calculation and comparison questions.
• Never leave blank: Karnataka DCET has NO negative marking — eliminate 2 options and make an educated guess!
"In DCET, 1 mark can swing your general merit rank by 250 positions! IT Skills is 20 pure scoring marks. Master these cheat sheets and guarantee your seat at RVCE, PES or BMS!"
— Midarsha Ma'am (RVCE Alumna)