Explanation

• In Artificial Intelligence (AI), an agent moves from an initial state to a goal state using State-Space Search.

Common search algorithms include:

• A* (A-Star)
• BFS (Breadth-First Search)
• DFS (Depth-First Search)

These algorithms help the agent find a path or solution efficiently.

Last verified on 11-07-2026

Explanation

• Windows NT is not application software; it is an Operating System.
• It is a proprietary graphical operating system developed by Microsoft.
• The first version of Windows NT was released on 27 July 1993.
• Examples of Application Software: Microsoft Word (WinWord XP), Adobe PageMaker, MS Excel, PowerPoint, Adobe Photoshop

Last verified on 10-07-2026

Explanation

• Binary 11111111 has eight 1s. Add the place values:
• 128 + 64 + 32 + 16 + 8 + 4 + 2 + 1 = 255
• So, 11111111 (binary) = 255 (decimal).

Last verified on 10-07-2026

Explanation

• Type: Operating System (Unix-like)
• Kernel Released: 17 September 1991
• Developer: Linus Torvalds
• License: Open-source (GNU General Public License)
• Common Distributions: Ubuntu, Debian, Fedora, Red Hat, Linux Mint

Last verified on 10-07-2026

Explanation

• Utility Software is designed to maintain, manage, and protect a computer system.
• It helps improve computer performance and keeps the system secure.
• It performs tasks like cleaning files, managing storage, and protecting against viruses.
• It is a type of system software.
• Examples include antivirus, disk cleanup, backup software, disk defragmenter and file management tools.

Last verified on 10-07-2026

Explanation

17² = 17 × 17 = 289  

Now convert 289 to binary:  

289 = 256 + 32 + 1  

256 = 2⁸  

32 = 2⁵  

1 = 2⁰  

Place 1 at 8th, 5th and 0th positions.  

Binary = 1 0001 0001  

So, 100010001

Last verified on 10-07-2026

Explanation

• Classified documents contain sensitive/confidential information that is restricted to authorized personnel only.
• They are protected to prevent unauthorized access or disclosure.
• Such documents may relate to national security, defense, intelligence, or confidential government matters.
• Only officials with proper security clearance can access them.

Last verified on 08-07-2026

Explanation

• Blockchain technology is primarily associated with cryptocurrency and secure digital transactions.
• It is a decentralized digital ledger that records transactions securely and transparently.
• Blockchain reduces the need for intermediaries and makes data difficult to alter.
• It is widely used in cryptocurrencies, finance, supply chains, and digital identity systems.
• The technology became globally popular with the launch of Bitcoin in 2009.

Last verified on 08-07-2026

Explanation

• A Digital Signature is used for cryptographic authentication of identity and to verify that a document has not been altered.
• It provides authentication, integrity, and non-repudiation for electronic documents.
• Digital signatures are created using public key cryptography (PKI).
• They are widely used in e-governance, banking, legal documents, and online transactions.

Last verified on 08-07-2026

Explanation

• JPEG is a lossy image compression format that reduces file size by permanently removing some image data.
• It is widely used for digital photographs and web images.
• JPEG provides a good balance between image quality and file size.
• Repeated saving of a JPEG image may reduce its quality further.

Last verified on 08-07-2026