Explanation

Iteration refers to the process of repeatedly executing a set of instructions or statements in a loop.

It is used to perform the same operation multiple times, such as in loops like for, while, and do-while.

Additional information::

Recursion involves a function calling itself,

 Conditional statements and function calls serve different purposes in programming.

Explanation

• HTTPS (Hypertext Transfer Protocol Secure) is an extension of the Hypertext Transfer Protocol (HTTP) used for secure communication over the internet.
• It combines HTTP with an additional security layer, typically Secure Sockets Layer (SSL) or Transport Layer Security (TLS), to encrypt and protect the data being transmitted between a website and a user's browser.

Explanation

• The correct answer is: Dept_id should not be used in group by clause (although this is not the case in the given query, as it uses dept_name)
• The error in the statement is that the ID column is not included in the GROUP BY clause. When using an aggregate function like AVG, all non-aggregated columns in the SELECT clause must be included in the GROUP BY clause.

Explanation

Spanning Tree Protocol (STP) is a network protocol that ensures a loop-free topology in a switched LAN (Local Area Network) with redundant paths. Its primary purpose is to prevent switching loops, which can cause network instability, packet duplication, and broadcast storms.

STP achieves this by:

• Creating a spanning tree topology
• Blocking redundant paths
• Ensuring a single path for data transmission

By preventing switching loops, STP ensures a stable and efficient network operation.

Explanation

The first screen that appears when you turn on Windows.

The Welcome screen lists all the accounts on the computer.

Explanation

Disk Cleanup is a useful tool for maintaining and optimizing the storage space on a Windows computer.

Purpose: Disk Cleanup is designed to help users reclaim disk space by removing unnecessary files from their computers.

Explanation

A type of network that is connected by physical switches is called a Switched Network.

Explanation

There are three logical operators: and , or , and not .

Explanation

Program can be remove and add

Explanation

In C, 9 and 4 are integers, so 9 / 4 = 2 (integer division, fractional part is discarded).

Then, 2 * 2 = 4