Tag: science & technology

Quizzes (551) Questions (11015)

Questions Related to science & technology

Multiple choice general knowledge science & technology

Online SBI/HDFC netbanking use which encryption technique?

  1. MD5

  2. MD5-RSA

  3. SSL

  4. AES (Advance DES)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

SSL (Secure Sockets Layer) and its successor TLS (Transport Layer Security) are used to encrypt netbanking traffic. MD5 is a hash function, not encryption. 'MD5-RSA' is not a standard term. AES is a symmetric encryption algorithm but is used within SSL/TLS, not as the primary protocol. Banking sites use HTTPS, which relies on SSL/TLS.

Multiple choice general knowledge science & technology

You are getting unwanted mails in your default outlook email client and you don’t want it. Which port will you ban if don’t want ANY mail?

  1. 443

  2. 139

  3. 110

  4. 80
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Port 110 is POP3 (Post Office Protocol v3), the standard protocol for receiving email. Blocking this prevents POP3 email clients from downloading mail. Note: Blocking only 110 is incomplete for blocking ALL email - you'd also need to block port 25 (SMTP), 143 (IMAP), and others. But 110 is a valid email port and the best answer among the options.

Multiple choice general knowledge science & technology

What is honeypot?

  1. It can hack all systems.

  2. Safe corporate data deposits.

  3. You can download anything from here.

  4. trap for cyber criminals.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In cybersecurity, a honeypot is a decoy system designed to mimic a likely target of a cyberattack. It is used to lure, detect, and study the methods of hackers. It is not a tool for hacking, a safe data deposit, or a general download site.

Multiple choice general knowledge science & technology

Who are White Hats?

  1. Underground Hackers

  2. Ethical Hackers

  3. US Gov. FBI hackers

  4. Less knowledgeable hackers
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

White hat hackers are ethical security professionals who find and report vulnerabilities with permission. Black hats are malicious actors, grey hats operate in ethical gray areas. The term comes from Western movies where heroes wore white hats. 'Underground hackers' typically refers to black hats.

Multiple choice general knowledge science & technology

You live with your 4 other friends. All have laptops but only one internet connection. Service provider has noted the physical address(MAC address) of your subscribed laptop. How your friends can use internet on their laptops? (Select best option)

  1. By using proxy server.

  2. Using a hub.

  3. User can change their Physical address identical to subscribed laptop.

  4. Apply for another net connection.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

MAC (Media Access Control) addresses can be cloned or spoofed in software. By changing the MAC address on other laptops to match the ISP-registered MAC address, they can authenticate on the network. This is technically feasible though it violates ISP terms of service. A proxy server would work but requires the registered laptop to be always on. A hub doesn't solve authentication.

Multiple choice general knowledge science & technology

What was the original Apple computers logo?

  1. Rainbow apple

  2. Rainbow apple with a bite

  3. Red apple

  4. Sir Isaac Newton under an apple tree
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The very first Apple logo, designed by Ronald Wayne in 1976, depicted Sir Isaac Newton sitting under an apple tree with a poem border. It was replaced shortly after by the famous rainbow bitten apple designed by Rob Janoff.