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دوره Network

 

فناوری اطلاعات عرصه نوینی را به منظور پیشرفت افراد و جوامع در دنیای امروز به روی همگان گشوده است. بدون شک از دانش شبکه می توان به عنوان یکی از مهم ترین این تخصص ها نام برد. کسب مهارت در زمینه +Network و به تبع آن مهارت در پیاده سازی و اجرای شبکه های پایه به رفع مشکلات سازمان ها در این حوزه کمک شایانی می کند. این فرادرس به عنوان پیش نیاز کلیه دوره های تخصصی شبکه به شما کمک خواهد کرد تا به عنوان تکنیسین شبکه، جهت ورود به بازار کار و نیز دوره های تخصصی تر شبکه از جمله دوره های مایکروسافت، سیسکو، لینوکس و امنیت شبکه آماده شوید.

 

سرفصل دوره

 

 

 

نمایه محتوای آموزشی دوره

ردیف

سرفصل‌ها

ریزمحتوا

1

Introduction to Networks

Introduction to Networks:

An introduction to what a network is, and an overview of the most common physical network topologies you’ll find in today’s networks.

What’s a Network?

The Local Area Network (LAN)

Common Network Components

Internet / Intranet / Extranet

Virtual LANs (VLANs)

Wide Area Network (WAN)

Virtual Private Networks (VPNs)

Network Architecture: Peer-to-Peer or Client/Server?

Network Samples (Ethernet, Dial-up, DSL (Digital Subscriber Line), ISDN (Integrated Services Digital Network), Wireless)

Physical Network Topologies

Bus Topology

Star Topology

Ring Topology (Token ,FDDI)

Mesh Topology

Point-to-Point Topology

Point-to-Multipoint Topology

Hybrid Topology

Topology Selection, Backbones, and Segments

Selecting the Right Topology

2

The Open Systems Interconnection Specifications:

The Open Systems Interconnection Specifications:
OSI model, what it is, what happens at each of its layers, and how each layer works.

Internetworking Models

The Layered Approach

Advantages of Reference Models

The OSI Reference Model

The Application Layer (Data,…)

The Presentation Layer (Data,…)

The Session Layer (Data,…)

The Transport Layer (Segment,..)

The Network Layer (Packet,…)

The Data Link Layer (Frame, …)

The Physical Layer (Signal, Voltage,..)

Introduction to Encapsulation

3

Networking Topologies, Connectors, and Wiring Standards

Networking Topologies, Connectors, and Wiring Standards:
covers the various networking media and topologies, plus the cable types and properties used in today’s networks.

Physical Media (Advantages and Disadvantage)

Coaxial Cable

Twisted-Pair Cable (Categories)

Fiber-Optic Cable (single mode /multimode)

Serial Cables

Connectors (RJ11 ,Rj45, RG-58, RG-59, RG-6, Fiber connectors, USB connector type, firewire IEEE 1394,)

Properties of Cables

Transmission Speeds

 

Duplex (full, half)

Noise Immunity (Security, EMI)

Frequency

Wiring Standards

568A 568B

Straight-Through Cable

Crossover Cable

Rollover Cable

Hardware Loopback

Installing Wiring Distributions

Vertical and Horizontal Cross-Connects

Patch Panels

Verifying Correct Wiring Installation

Verifying Proper Wiring Termination

4

The Current Ethernet Specifications

The Current Ethernet Specifications:
covers how a basic Ethernet LAN works, and describes and categorizes the different Ethernet specifications.

Network Basics

Ethernet Basics

Collision Domain

Broadcast Domain

MAC Address

 

Half- and Full-Duplex Ethernet

Ethernet at the Data Link Layer

Binary to Decimal and Hexadecimal Conversion

Ethernet Addressing

Ethernet Frames

Channel Bonding

Ethernet at the Physical Layer

5

Networking Devices

Networking Devices:
understanding all the various devices used in today’s networks, and this chapter will describe how hubs, routers, and switches and some other devices work within a network.

Common Network Connectivity Devices (Which of the following devices work at same or different collision domain/broadcast domain)

 

 

Modem

Network Interface Card (NIC)

Transceiver (Media Converter)

Bridge

Switch

Wireless Access Point (AP)

Router

Firewall

Dynamic Host Configuration Protocol (DHCP) Server

Other Specialized Devices

Multilayer Switch

Content Switch

Intrusion Detection or Prevention System (IDS/IPS)

Load Balancer

Multifunction Network Devices

Domain Name Service (DNS) Server

Bandwidth Shaper

Proxy Server

Channel Service Unit/Data Service Unit (CSU/DSU)

Network Segmentation

Switches and Bridges at the Data Link Layer

Hubs at the Physical Layer

6

Introduction to Internet Protocol (IP)

Introduction to Internet Protocol (IP):
This is your introduction to the all-important IP protocol stack.

Introducing TCP/IP

A Brief History of TCP/IP (ARPA, …)

TCP/IP (OSI) and the DoD Model

The Process/Application Layer Protocols (Telnet, FTP, SFTP, TFTP, NFS, SMTP,POP ,IMAP 4,SSL , SIP(VoIP, RIP (VoIP), LDP, SNMP, SSH, HTTP, HTTPS ,NTP, NNTP ,SCP ,LDAP ,IGMP , LPR, DNS, DHCP, BootP )

The Host-to-Host Layer Protocols (TCP ,UDP, Well Known Ports for common Internet / Network services)

The Internet Layer Protocols (IP, ICMP,ARP, RARP, Proxy ARP)

Data Encapsulation

Supporting TCP/IP (TCP/IP Configuration Parameters)

How to set Static IP Address/ Automatic / Alternate /APIPA TCP-IP Configuration, Configuring a DNS Client

7

IP Addressing

IP Addressing:
This chapter will take up from where Chapter 6 left off and move into IP addressing. It also contains information about public versus private addressing and DHCP.

IP Terminology (Network Address, Broadcast,…)

The Hierarchical IP Addressing Scheme

Network Addressing

Private IP Addresses (Class A/B/C/D/E - APIPA)

Broadcast / Multicast /Unicast

Internet Protocol Version 6 (IPv6)

Why Do We Need IPv6?

The Benefits of and Uses for IPv6

IPv6 Addressing and Expressions

Shortened Expression

Address Types

Special Addresses

8

IP Subnetting Troubleshooting IP, And Introduction to NAT

IP
Beginning where Chapter 7 ends, we’ll be tackling IP subnetting in this one.

Subnetting Basics

How to Create Subnets

Subnet Masks

Classless Inter-Domain Routing (CIDR)

Subnetting Class C Addresses

Subnetting Class B Addresses

Troubleshooting IP Addressing

Determining IP Address Problems

Introduction to Network Address Translation (NAT)

Types of Network Address Translation

Static NAT (SNAT) ,Dynamic NAT, Overloading

one-to-one , IP Address pool, many-to-one

How NAT Works

ICS (Internet Connection Sharing)

Differences between ICS and NAT

9

Introduction to IP Routing

Introduction to IP Routing:
This is an introduction to routing that basically covers what routers do and how they do it. This chapter, along with Chapters 10 and 11, cover routing and switching in much more detail than what is necessary to meet the CompTIA Network+ objectives, because this knowledge is so critical to grasp when working with today’s networks.

Routing Basics

The IP Routing Process

Testing Your IP Routing Understanding (Packet Tracer LAB or other LAB)

Static and Dynamic Routing (RGIP, EIGRP, OSPF,…)

10

Routing Protocols

Routing Protocols:
This chapter goes into detail describing the protocols that run on routers and that update routing tables to create a working map of the network.

Routing Protocol Basics

Administrative Distances (AD)

Classes of Routing Protocols (Distance vector, Link state ,Hybrid)

Distance-Vector Routing Protocols

Routing Information Protocol (RIP)

RIP Version 2 (RIPv2)

VLSM and Discontiguous Networks

 

Border Gateway Protocol (BGP)

Link-State Routing Protocols

Open Shortest Path First (OSPF)

Intermediate System to Intermediate System (IS-IS)

IPv6 Routing Protocols

 

 

 

11

Switching and Virtual LANs (VLANs)

Switching and Virtual LANs (VLANs):
This chapter covers Layer 2 switching, the Spanning Tree Protocol (STP), and Virtual LANs. This chapter has deeper information needed for the exam, this chapter cover switching and virtual LANs (which are also vital in today’s corporate networks) more thoroughly as well.

Switching Services

Limitations of Layer 2 Switching

Bridging vs. LAN Switching

Three Switch Functions at Layer 2 (Address Learning, Forward/Filter Decisions, Loop Avoidance)

Spanning Tree Protocol (STP)

Spanning-Tree Port States

STP Convergence

Virtual LANs (VLANs)

VLAN Basics

VLAN Memberships

Static VLANs

Dynamic VLANs

Identifying VLANs

VLAN Identification Methods

Switching and Network Security

Port Security/Authentication

How VLANs Enhance Network Security

Two Additional Advanced Features of Switches

Power over Ethernet (PoE)

Port Mirroring/Spanning

12

Wireless Technologies

Wireless Technologies:
Because wireless is so important for both home and business networks today, this chapter is loaded with all the information you need to be successful at wireless networking at home and work.

Introduction to Wireless Technology

The 802.11 Standards

2.4GHz (802.11b)

2.4GHz (802.11g)

5GHz (802.11a)

5GHz (802.11h)

2.4GHz/5GHz (802.11n)

Comparing 802.11 Standards

Wireless LAN Modulation Techniques

Range Comparisons

Wireless Network Components

Wireless Access Points

Wireless Network Interface Card (NIC)

Wireless Antennas

Installing a Wireless Network

Ad hoc Mode: Independent Basic

Infrastructure Mode: Basic Service Set (BSS)

Design Considerations with Large Wireless Networks

Installing and Configuring Hardware

Wireless Securityoverlap with exams: 70-291, 70-293, 70-298 ,70-299

Open Access

Service Set Identifiers (SSIDs), Wired Equivalent
Privacy (WEP), and Media Access Control (MAC)
Address Authentication

Remote Authentication Dial In User Service (RADIUS)

Temporal Key Integrity Protocol (TKIP)

Wi-Fi Protected Access (WPA) or WPA 2 Pre-Shared Key

13

Authentication and Access Control

Authentication and Access Control:
This is the first of three security chapters. There are tons of exam objectives about network security that are so important that I took three chapters to cover all of them. In this chapter, I’ll introduce security, security filtering, tunneling, and user authentication.

Security Filtering

Access Control Lists overlap with all70-XXX exams

Remote Access Protocol & Tunneling (Tunneling modes):(SLIP, PPP, PPOE, PPTP,L2TP,IPSEC) overlap with exams: 70-291, 70-293, 70-298 ,70-299

Encryption overlap with exams: 70-291, 70-293, 70-298 ,70-299

Private Encryption Keys

Data Encryption Standard (DES)

Triple Data Encryption Standard (3DES)

Advanced Encryption Standard (AES)

Public Key Encryption

RSA Data Security

Pretty Good Privacy (PGP)

Remote Access (RAS,RDP,PPP, PPPoE)

Managing User Account and Password Security overlap with exam: 70-290

Network Resource-Sharing Security Models (Share-Level Security or User-Level Security)

Managing User Accounts (Disabling Accounts,Setting Up Anonymous Accounts ,Limiting Connections, Renaming the Maintenance Account

Managing Passwords (Minimum Length, Using Characters to Make a Strong Password, Automatic Account Lockouts, Password Expiration and Password Histories)

User-Authentication Methods overlap with exams: 70-298, 70-299

Public Key Infrastructure (PKI)

Kerberos

Authentication, Authorization, and Accounting (AAA)

Network Access Control (NAC)

Challenge Handshake Authentication Protocol (CHAP)

MS-CHAP

Authentication Protocol (EAP)

14

Network Threats and Mitigation

Network Threats and Mitigation
This chapter tell you all about security threats and how to stop them. The only way to get good at network security is to implement it, and this chapter shows you how.

Recognizing Security Threats

Denial of Service (DoS)

 

Worms

Attackers and Their Tools

Rogue Access Points

Social Engineering (Phishing)

Understanding Mitigation Techniques

Active Detection

Passive Detection

Proactive Defense

Policies and Procedures

Security Policies

Security Training

Patches and Upgrades

Updating Antivirus Components

Fixing an Infected Computer

15

Physical and Hardware Security

Physical and Hardware Security:
This chapter’s focus is on explaining basic firewalls, security devices, and device security.

Using Hardware and Software Security Devices

Defining Firewalls

Network-Based Firewalls

Host-Based Firewalls

Firewall Technologies

Access Control Lists (ACL)

Demilitarized Zone (DMZ)

Protocol Switching

Dynamic Packet Filtering

Proxy Services

Firewalls at the Application Layer vs. the Network Layer

Stateful vs. Stateless Network-Layer Firewalls

Application-layer Firewalls

Scanning Services and Other Firewall Features

Content Filtering

Signature Identification

Zones (Internet Explorer)

Intrusion-Detection and -Prevention Systems

Network-Based IDS

Host-Based IDS

VPN Concentrators

Understanding Problems Affecting Device Security

Physical Security

Secure and Unsecure Application Protocols

16

Wide Area Networks

Wide Area Networks:
In this chapter, you get to learn all about things like frame relay, E1/T1, DSL, cable modems, and more. All the CompTIA Network+ WAN objectives are covered in this chapter.

What’s a WAN

Defining WAN Terms

The Public Switched Telephone Network (PSTN)

WAN Connection Types (Frame relay ,E1/T1,ADSL ,SDSL ,VDSL ,Cable modem, Satellite, E3/T3 ,OC-x, Wireless, ATM, SONET, MPLS, ISDN BRI, ISDN PRI, POTS, PSTN)

Bandwidth or Speed

T-Series Connections

The T1 Connection

The T3 Connection

Transmission Media

Wired Connections

Wireless Technologies

Broadband Services

DSL Technology and xDSL

Cable Modem

WAN Protocols

Integrated Services Digital Network (ISDN)

Frame Relay Technology

Asynchronous Transfer Mode (ATM)

Multi Protocol Label Switching (MPLS)

17

Command-Line Tools

Command-Line Tools:
in this chapter you can follow along and run all the commands yourself.

Tracert (Traceroute)

ipconfig/winipcfg (ifconfig inLinux/Unix/Mac)

 

 

Nslookup (dig in linux)

Hostname (Host Table Files)

Pathping (mtr in Linux or Unix)

 

 

 

FTP (downloading and uploading files)

Telnet /SSH

18

Software and Hardware Tools

Software and Hardware Tools:
This chapter introduces you to the network tools you will use to help you run your networks. Both software and hardware tools will be discussed.

Understanding Network Scanners

Packet Sniffers (Microsoft’s Network Monitor (NetMon))

Wireless scanner (AirSnort ,netstumbler,…)

Intrusion Detection and Prevention Software (IDS/IPS)

Port Scanners

Identifying Hardware Tools

Cable Testers

Protocol Analyzer

Certifiers

Time-Domain Reflectometer (TDR)

Optical Time-Domain Reflectometer (OTDR)

Multimeter

Toner Probe (tone generator)

Butt Set

Punch-Down Tool

Cable Stripper/Snips/crimper

Voltage Event Recorder

Temperature Monitor

19

 

 

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