Comprehensive Guide to Computer Networks and C Programming with Loops and Arrays

Computer Network

Fill in the Blanks:

  1. The hostname command is used to display …………….
    Ans: Name of the computer.
  2. The length of an IPv4 and an IPv6 address is …………. and ………… bytes respectively.
    Ans: 32 bits and 128 bits.
  3. An access point is used to connect …………..
    Ans: Wireless network.
  4. The ping command is used to …………..
    Ans: Verify the connectivity between two computers.
  5. HTTPS transfers …………… data.
    Ans: Encrypted.

Multiple Choice Questions:

  1. Which device is required
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Computer Networks and C Programming

Computer Networks

Fill in the Blanks

  1. The hostname command is used to display _______.
    Answer: The name of the computer
  2. The length of an IPv4 and an IPv6 address is ______ and ______ bytes respectively.
    Answer: 32 bits and 128 bits
  3. An access point is used to connect to a _______.
    Answer: Wireless network
  4. The ping command is used to _______.
    Answer: Verify the connectivity between two computers
  5. HTTPS transfers _______ data.
    Answer: Encrypted data

Multiple Choice Questions

  1. Which device is required to connect
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PHP Programming: Features, Data Types, Functions, and More

1. PHP Features

PHP is a popular language due to its simplicity and open-source nature. Here are some key features:

Performance

PHP scripts execute faster than those written in languages like JSP and ASP. PHP uses its own memory, reducing server workload and loading time, resulting in faster processing and better performance.

Other Features

  • Open Source
  • Familiar Syntax
  • Embedded
  • Platform Independent
  • Database Support
  • Error Reporting
  • Loosely Typed Language
  • Web Server Support
  • Security and Control

2. Difference Between

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Understanding Confusion Matrix and Data Types

Confusion Matrix

A confusion matrix is an N x N matrix used for evaluating the performance of a classification model, where N is the total number of target classes. The matrix compares the actual target values with those predicted by the machine learning model. The target variable has two values: Positive or Negative.

The columns represent the actual values of the target variable. The rows represent the predicted values of the target variable.

Confusion Matrix Elements

  • True Positive (TP): The predicted
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Client-Server Architecture and Software Licenses: An Overview

Client-Server Architecture

Overview

The client-server model aims to provide usability, flexibility, scalability, interoperability, and effective communication. It’s an extension of modular programming where software modules are separated for easier development and maintenance.

Client (Front-End)

The client process allows users to formulate requests and send them to the server. Its functions include:

  • Managing the user interface
  • Interacting with the user
  • Processing application logic and performing local
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Oracle Database Administration: Concepts and Best Practices

Oracle Database Administration

1. Data Block Size

The typical size of a data block ranges from 8 to 32KB, but we have observed sizes from 2 to 32KB.

2. Tablespace Usage

A tablespace is used to store: c) Data logically

3. System Tablespace

The system tablespace: b) Stores data dictionary information

4. Oracle Segment Types

Segments that exist in Oracle include: c) Temporary and Rollback

5. Oracle Extents

Extents in Oracle are utilized to: c) Monitor tablespace size

6. PCTFREE Parameter

The PCTFREE parameter

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