Ccna exploration network fundamentals
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CCNA Exploration Network Fundamentals. Chapter 02 Мрежови комуникации. Комуникационни елементи. Комуникациите започват със съобщение или информация, която трябва да се изпрати от един човек или устройство към друг, като се използват различни комуникационни методи.

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CCNA Exploration Network Fundamentals

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Ccna exploration network fundamentals

CCNA Exploration Network Fundamentals

Chapter 02

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Ccna exploration network fundamentals

  • , , .

  • 3 :

    • ;

    • ;

    • .

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Ccna exploration network fundamentals

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Ccna exploration network fundamentals

  • () - Segmentation

  • :

    • .

    • ( , )

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Ccna exploration network fundamentals

  • .

  • .

  • - .

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Ccna exploration network fundamentals

  • (PC-, )

  • (Media)

  • (Software)

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Ccna exploration network fundamentals

  • (host).

  • (sender) (receiver).

  • .

  • .

  • , .

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Ccna exploration network fundamentals

  • :

    - Network Access Devices (Hubs, switches, and wireless access points)

    - Internetworking Devices (routers)

    - Communication Servers and Modems

    - Security Devices (firewalls)

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Ccna exploration network fundamentals

  • :

    • ;

    • ;

    • - ;

    • ;

    • QoS ;

    • .

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Ccna exploration network fundamentals

  • 3 :

  • ( )

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Ccna exploration network fundamentals

  • .

    • .

    • .

    • .

  • :

    • , ;

    • ( ), ;

    • , ;

    • .

. --


Lan wan internetworks

LAN, WAN, Internetworks

  • Local Area Network (LAN) , , , , , .

  • Wide Area Network(WAN) . , ( Wide Area Networks).

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Ccna exploration network fundamentals

  • Internetworks .

  • Internet

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Ccna exploration network fundamentals

  • Intranet LAN WAN, ( , . ).

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Ccna exploration network fundamentals

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Ccna exploration network fundamentals

  • Network Interface Card( ) - NIC, LAN adapter, . .

  • Physical Port . .

  • Interface .

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Ccna exploration network fundamentals

  • .

  • , (protocol suite). , .

  • :

    • ;

    • , ;

    • / ;

    • .

  • .

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Ccna exploration network fundamentals

  • :

    • Institute of Electrical and Electronics Engineers (IEEE)

    • Internet Engineering Task Force (IETF)

  • - .

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Ccna exploration network fundamentals

TCP/IP

  • HTTP /

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Ccna exploration network fundamentals

TCP

HTTP ;

.

TCP/IP

20

KC KHOR, Multimedia Univ. Cyberjaya

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Ccna exploration network fundamentals

IP

;

;

- .

TCP/IP

21

KC KHOR, Multimedia Univ. Cyberjaya

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Ccna exploration network fundamentals

(Network Access Protocol) data link .

TCP/IP

22

KC KHOR, Multimedia Univ. Cyberjaya

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Layer models

( Layer Models)

  • - / .

  • :

    • ( )

    • (- )

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Ccna exploration network fundamentals

  • () . . TCP/IP .

  • () , . , . : OSI .

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Ccna exploration network fundamentals

OSI

  • .

  • .

  • , .

  • 7 .

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Ccna exploration network fundamentals

OSI

  • .

  • .

  • Http Web

  • FTP

  • .

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Ccna exploration network fundamentals

OSI

  • .

  • , , , , .

  • .

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Ccna exploration network fundamentals

OSI

  • .

  • , .

  • .

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Ccna exploration network fundamentals

OSI

  • , / 2 .

  • ( )

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Ccna exploration network fundamentals

OSI

  • .

  • .

  • - .

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Osi data link

OSI (Data Link)

  • -> .

  • (flow control)

  • () .

  • .

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Ccna exploration network fundamentals

OSI

  • , , , .

  • , , , , .

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Tcp ip

TCP/IP

,

/

-

,

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Ccna exploration network fundamentals

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Ccna exploration network fundamentals

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Ccna exploration network fundamentals

(MAC)

(IP)

(Port Nb)

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Ccna exploration network fundamentals

  • PDU Protocol Data Unit

  • Layer 2 - frame.

  • Layer 3 packet

  • Layer 4 segment

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Ccna exploration network fundamentals

!

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