Computer Technologies Course Overview
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Questions and Answers

The course described lasts for 3 hours.

True

The main objective of the course is to teach computer technologies in non-healthcare fields.

False

Students will gain both theoretical knowledge and practical skills in this course.

True

Excluding fellow students for information is encouraged in this course.

<p>False</p> Signup and view all the answers

The course does not require any prior knowledge of computer technologies.

<p>False</p> Signup and view all the answers

Bandwidth remains constant regardless of the type of media used.

<p>False</p> Signup and view all the answers

LAN and WAN technologies can affect bandwidth limitations.

<p>True</p> Signup and view all the answers

The type of media has no impact on bandwidth variation.

<p>False</p> Signup and view all the answers

Bandwidth is influenced by both technological and environmental factors.

<p>True</p> Signup and view all the answers

All types of media provide the same bandwidth capacity.

<p>False</p> Signup and view all the answers

In Half-Duplex mode, multiple devices can transmit simultaneously.

<p>False</p> Signup and view all the answers

Ethernet NICs can operate in Half-Duplex mode when connected to a hub.

<p>True</p> Signup and view all the answers

Half-Duplex mode allows continuous data transmission from all devices connected to the network.

<p>False</p> Signup and view all the answers

In a Half-Duplex network, the data transmission direction can change.

<p>True</p> Signup and view all the answers

A series of hubs allows multiple devices to transmit data at once in Half-Duplex mode.

<p>False</p> Signup and view all the answers

In a star topology, all devices are connected to a single central device known as a switch.

<p>True</p> Signup and view all the answers

The term 'Source Address Table' refers to a list of connected devices in a bus topology.

<p>False</p> Signup and view all the answers

In a star topology, if the central switch fails, all connected devices can still communicate with each other.

<p>False</p> Signup and view all the answers

Each port on the switch has a unique MAC address assigned to the connected device.

<p>True</p> Signup and view all the answers

Multiple Source Address Tables are used in a star topology to manage the data traffic.

<p>True</p> Signup and view all the answers

The result will always represent the theoretical maximum transfer time due to available bandwidth.

<p>False</p> Signup and view all the answers

Available bandwidth is usually less than the theoretical maximum for the network type.

<p>True</p> Signup and view all the answers

The actual transfer time is often better than what is theoretically predicted.

<p>False</p> Signup and view all the answers

Network types can achieve their theoretical maximum transfer times consistently.

<p>False</p> Signup and view all the answers

A best-case transfer time is indicative of optimal performance under ideal conditions.

<p>True</p> Signup and view all the answers

The command ipconfig /flushdns is used to manually delete DNS entries.

<p>True</p> Signup and view all the answers

The default TTL for positive DNS responses is 60 seconds.

<p>False</p> Signup and view all the answers

Negative DNS responses have a longer default TTL than positive responses.

<p>False</p> Signup and view all the answers

The default TTL for negative responses is 300 seconds.

<p>True</p> Signup and view all the answers

The command ipconfig /flushdns sets the DNS TTL to 1 day.

<p>False</p> Signup and view all the answers

Study Notes

Course Title and Description

  • Computer Application In Biomedical Engineering
  • Specialist degree
  • Taught by Dr. Wael Abouelwafa
  • Part of King Tut: Tutoring Through Time

Course Staff

  • Instructor: Dr. Wael Abouelwafa
  • Email: [email protected]
  • Phone: +2-010-010-1700
  • +20-011-0101-700
  • Lab coordinator: Eng. Mazin Yasen
  • Biomed Dep. Coordinator: Eng. Mostafa Khalil

Course Information

  • Communication: Announcements, questions on section or lecture
  • Staff email: Dr. Wael Abouelwafa ([email protected]), Eng. Mohamed Salah ([email protected])
  • Office hours: Dr. Wael Abouelwafa and Eng. Mohamed Salah (Sunday ... PM)
  • Work: Projects (10), homework (5 + 5), midterm (10), final (110), attendance (5+5) up to 75% (be nice!)

Online Policies

  • For online lectures: Cameras off, mics off, ask questions using "Hand Up" or chat, occasional splitting into zoom rooms for collaborative problem-solving, staff available to help, observe academic integrity policies (no plagiarism), and do not exclude other students from information.

Textbook and Resources

  • Textbook: Includes information on IoT with Packet Tracer (14 videos)
  • Cisco Packet Tracer 8.2
  • Packet Tracer Tutorials (49 episodes)
  • Packet Tracer in Depth (135 episodes)

Course Description

  • 3 hours course
  • Modules include Health Network, the internet of medical things, healthcare standards, and AI in healthcare.

Course Goal

  • Equip students with knowledge and practical skills in applying computer technologies within healthcare.
  • Include an understanding of healthcare network infrastructure, IoT applications in medical settings, healthcare data standards, and AI in healthcare.
  • Students will be capable of designing, implementing, and managing secure and efficient healthcare IT systems.
  • Utilize AI-driven technologies for enhanced decision-making and patient care.

Intended Learning Outcomes

  • Upon successful course completion students will:
    • Understand and explain the structure and functions of healthcare networks.
    • Design and configure network topologies in a healthcare setting.
    • Describe the role of IoT in healthcare.
    • Address security, privacy, and ethical challenges related to IoT devices.
    • Understand and apply health data standards, such as DICOM and HL7.
    • Understand PACS
    • Analyze and implement AI-driven solutions for medical imaging.
    • Understand New technologies in AI with healthcare

Evaluation of Grades

  • Assignments are tools to assess learning objectives
  • Frequent low-stake assignments help reduce test anxiety
  • Participation-Lecture Quizzes (10%)
  • Homework Sets (15%)
  • Test I (Module 1), Test II (Module 2), Test III (Module 3) (5% each)
  • Final Exam (110%)

Topics Covered in Module 1

  • Network Topology and Component
  • IP Addressing and Network Classification
  • Subnetting
  • Transmission Media
  • OSI Model
  • Cryptography in Biomedical Informatics

Network Fundamentals

  • Lectures cover topics including networks Definition, elements, categories, topologies, and transmission media.
  • Additional topics will include networking issues such as data standards and AI in Health

Network Classification

  • According to covered areas: personal area network, local area network, metropolitan area network, wide area network
  • Model: client/server, peer-to-peer
  • Topology: bus, star, ring, hybrid, mesh, extended star, hierarchical

Devices Used in Networking

  • Network Interface Card (NIC)
  • Switch
  • Router
  • Repeater
  • Modem
  • Patch Panels

Hub, Switch, Router Layers

  • The diagram shows the layers of the HUB, SWITCH, and ROUTER, and their function levels in Networking systems

Common Data Network Symbols

  • Presents various types of symbols used to represent different devices found on a network system (e.g., desktop, laptop, server, IP phone, LAN switch, firewall, router, wireless router, LAN media, cloud, WAN media)

Network Topology and Component (Detailed)

  • Introduction to ARPANet (first computer network)
  • ARPANet overview including founders, protocols, institutions and dates
  • Basic Network Elements: Hardware (NIC, Router, Switches, Bridges, Hubs), Software (Protocols) and Transmission media.
  • Network Classifications (PAN, LAN, MAN, WAN) with examples
  • Additional notes include different device functions within network systems
  • Device differences in the Networking system

IP Addressing

  • IPv4 address (32 bits)
  • IPv4 octet structure and conversion to decimal
  • IPv6 address (128 bits) and hexadecimal notation
  • Conversions between decimal and binary
  • IP address classifications (e.g., class A, class B, class C, class D, class E) for different applications like LAN and WAN.

IPv4 and IPv6 Addresses

  • The difference in bits and bytes between IPv4 and IPv6
  • Comparisons of the different methods used to present and manage Networking system information
  • Additional notes related to practical functions of IP addressing

Subnetting (First Look)

  • Subnets and the importance of the subnet mask in determining the number of hosts.
  • Examples of subnet masks for different classes (e.g., /8, /16, /24).

Transmission Media

  • Types include: Twisted pair (STP, UTP), Coaxial cable, Fiber optic, Wireless media (Infrared, Microwave)
  • Strengths, weaknesses, usage, and important applications or examples.
  • Cable type usage with RJ 45 connections
  • Diagrams showing connection types

Bandwidth

  • The amount of data transmission, which is affected by various factors (e.g., signals, transmission equipment)
  • Measure of data transfer (e.g., bps, kbps, Mbps, Gbps)
  • Practical significance and implications (e.g., data transfer time calculation, performance)
  • Diagrams showing bandwidth analogies
  • Calculating data transfer time based on bandwidth and transfer time

Data Transfer Calculations

  • Formula for calculating data transfer time based on the size of the data and available bandwidth
  • Importance of considerations with real-world scenarios
  • Examples working with different types of transmission systems

IEEE Identifiers

  • Categorization of types of cabling (e.g., 10BaseT)
  • Types of Ethernet network systems (e.g., Thicknet, Thinnet)
  • Cable types and limitations
  • Data rates and maximum lengths
  • Different types of signals (baseband, broadband)

OSI Model

  • OSI Reference Model (7 layers)
  • Major networking protocols (e.g., TCP, UDP, IP, TCP/IP)
  • Devices used in networking
  • Functions within each layer (e.g., physical, data link, network, transport, session, presentation, application)
  • Diagrams showing functionality and steps of layers

Protocols

  • HTTPS, FTP, DNS, RIP, OSPF

Networking Command Line Tools

  • IPCONFIG: viewing TCP/IP configuration in Windows
  • IFCONFIG: viewing TCP/IP configuration in Unix, Linux, and macOS
  • PING: checking connectivity between devices (eg., 192.168.10.1, google.com)
  • TRACERT/TRACEROUTE: viewing the whole path of a message (eg., tracert google.com)
  • ARP: address resolution protocol; viewing and managing ARP cache
  • NSLOOKUP: query a domain name to get IP address
  • NETSTAT: displaying statistics and connections, can be used for troubleshooting
  • NBTSTAT: displaying NetBIOS statistics for resolving name resolution issues
  • ROUTE: for displaying and managing the routing table

Additional Topics

  • Steganography and Cryptography
  • Cryptography in Biomedical Informatics, its types and use/importance
  • Frequency Analysis and examples of ciphertext, their frequencies (and letters and other figures), example of word substitutions
  • Protecting data when at rest or transferring data
  • Network devices diagrams to show communications

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Description

This course is designed to teach computer technologies applicable in non-healthcare fields over a duration of three hours. Students will acquire theoretical knowledge and practical skills, with an emphasis on understanding concepts such as bandwidth and networking modes. The course requires no prior knowledge and encourages collaborative learning among peers.

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