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The correct answer is Structured Query Language.

Key Points

• SQL stands for Structured Query Language.
• It is a standard language used to communicate with and manage databases.
• SQL is used to perform tasks such as update data on a database or retrieve data from a database.
• It is widely used in database management systems like MySQL, PostgreSQL, Microsoft SQL Server, Oracle, and SQLite.

Additional Information

• Server Query Locator (Option 1) is not a recognized term in database management. It is not related to SQL.
• Schedule Query Link (Option 2) is also not a recognized term in database management. It is not related to SQL.
• Status Query Language (Option 3) is another incorrect term that does not pertain to SQL. There is no such language as Status Query Language in the realm of databases.

The correct answer is option 4.

Key Points

• What is a 5^th Generation Programming Language (5GL)?
• 5GLs are logic-based or constraint-based languages.
• They are designed primarily for Artificial Intelligence (AI) and problem-solving using rules, rather than procedural code.
• In 5GLs, the programmer specifies the problem, and the machine figures out how to solve it.
• About Prolog:
• Full Form: Programming in Logic
• Introduced in: 1972
• Purpose: Primarily used for AI applications such as natural language processing, expert systems, and automated reasoning. Hence, option 4 is correct.
• Key Feature: Works based on facts, rules, and queries.

Additional Information

• SQL (Structured Query Language):
• Used for managing and querying databases.
• Not an AI programming language.
• C++:
• A general-purpose, object-oriented programming language.
• Commonly used for systems programming, not specifically for AI logic.
• C:
• A procedural language, foundational but not suited for AI logic-based tasks.

The correct answer is char.

 Key PointsCHAR Datatype

• It is a datatype in SQL which is used to store character string of fixed length specified.
• If the length of the string is less than set or fixed length, then it is padded with extra blank spaces so that its length became equal to the set length when PAD_CHAR_TO_FULL_LENGTH SQL mode is enabled.
• The storage size of the CHAR datatype is n bytes (set length).
• We should use this datatype when we expect the data values in a column are of the same length.
• Example: Suppose if we declare a char(50), then it will allocate a memory for 50 characters to hold 50 characters of data.
• In case, if we insert only 10 characters of a string, then only 10 characters of memory will be used and remaining 40 characters of memory will be wasted.

 Additional Information

VARCHAR Datatype

• In sql, varchar means variable characters and it is used to store non-unicode characters.
• It is a datatype in SQL which is used to store character string of variable length, but a maximum of the set length specified.
• If the length of the string is less than set or fixed length, then it will store as it is without padded with extra blank spaces.
• The storage size of the VARCHAR datatype is equal to the actual length of the entered string in bytes.
• It will allocate the memory based on the number of characters inserted.
• Example: Suppose if we declare varchar(50), then it will allocate memory of 0 characters at the time of declaration.
• Now if we insert only 10 characters of a string, then it will allocate memory for only 10 characters.

The correct answer is Select, where, group by, having.

Additional Information

Six Operations to Order: SELECT, FROM, WHERE, GROUP BY, HAVING, and ORDER BY. Because the database executes query components in a specific order,

SELECT select_list [ INTO new_table ]  [ FROM table_source ]

[ WHERE search_condition ]

[ GROUP BY group_by_expression ]

[ HAVING search_condition ]

[ ORDER BY order_expression [ ASC | DESC ] ]

Hence Option 4 is correct

The correct answer is Option 2

Key Points

• LISP:
• LISP (List Processing) is a functional programming language, which is considered non-procedural because it focuses on the use of functions and avoids specifying a sequence of instructions.
• Hence, option 1 is incorrect.
• Python:
• Python is primarily a procedural and object-oriented programming language, where the programmer explicitly writes out the sequence of steps to be followed.
• While Python supports some functional programming features, it is not classified as a non-procedural language.
• Hence, option 2 is correct.
• Prolog:
• Prolog (Programming in Logic) is a logic programming language that is non-procedural, focusing on what to solve rather than how to solve it.
• Hence, option 3 is incorrect.
• ML:
• ML (Meta Language) is another functional programming language that is non-procedural, emphasizing expressions rather than explicit control flow.
• Hence, option 4 is incorrect.
• Since Python is not a non-procedural language, option 2 is the correct answer

The correct answer is Option 4) DROP INDEX.

Key Points

• The DROP INDEX command is used in SQL to remove an existing index from a table.
• It deletes the index permanently from the database, freeing up space and resources.
• Syntax (for MySQL):

DROP INDEX index_name ON table_name;

• Syntax (for SQL Server):

DROP INDEX table_name.index_name;

• Indexes help speed up query performance, but unnecessary or unused indexes can be dropped to improve database efficiency.

Additional Information 

• Incorrect Options:
• ROLL BACK INDEX: No such command exists in SQL. ROLLBACK is used to undo transactions, not to drop indexes.
• DELETE INDEX: DELETE is used for deleting records from a table, not indexes.
• REMOVE INDEX: Not a valid SQL command for dropping indexes.
• Always ensure that the index is no longer required before dropping it to avoid performance issues in future queries.

The correct answer is Firewall.

Key Points

• A firewall is not a cause of a cyber attack.
• Firewalls protect our computers from cyber attacks.
• A firewall is a network security system that monitors and restricts network traffic based on **predefined security rules.**​

Additional Information

• Phishing - Phishing is a type of social engineering in which an attacker sends a phoney message to fool a person into giving up important information or allowing dangerous software, such as ransomware, to be installed on the victim's system.
• Malware - Malware is malicious software that is intended to harm or destroy computers and computer systems.
• Denial of Service - A Denial-of-Service attack is an attempt to bring a machine or network to a halt, rendering it unreachable to its intended users.

The correct answer is Kali.

• Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration testing
• It is maintained and funded by Offensive Security Ltd
• Kali Linux has over 600 pre-installed penetration-testing programs, including Armitage (a graphical cyber attack management tool), John the Ripper password cracker, etc

The correct answer is DNS Tunneling.

Key Points

• DNS Tunneling is a method of cyber attack that encodes the data of other programs or protocols in DNS queries and responses.
• It is often used to bypass security controls and exfiltrate data from a network.
• Attackers use DNS requests to carry data payloads to a remote server that the attacker controls.
• DNS Tunneling can be used for various malicious purposes, including data theft, command and control communication, and more.

Additional Information

• DNS Shadowing: This involves attackers creating subdomains within a compromised domain to host malicious content. It is not related to encoding data in DNS queries.
• DNS Spooling: This term is not commonly used in cybersecurity and does not pertain to any known attack method involving DNS queries.
• DNS Spoofing: Also known as DNS cache poisoning, this attack involves corrupting DNS data to redirect traffic to malicious sites. It does not involve encoding data in DNS queries.

The correct answer is MS-Paint.

Key Points

• ​MS-Paint is not a component of MS Office 365.
• The main components of MS Office are given below:
• Microsoft Teams,
• Word, Excel.
• Powerpoint.
• Outlook.
• One note.
• One drive.

Additional Information

• Microsoft word is a word processor software developed by Microsoft in 1983.
• OneDrive is the Microsoft cloud service that connects you to all your files. It lets you stock and save your files, share them with others, and get to them from any place on all your devices.
• Microsoft Access is a database management system (DBMS) used to store and manage data.