12

IT - , , DevOPS, , , .

 40    IT -

, . (, project/product IT) - .

, . .


: 35 IT - | , ?


  1. ?
  2. 7 OSI.
  3. IP - ?
  4. LAN?
  5. DHCP
  6. DNS?
  7. WAN?
  8. ""? ""?
  9. UTP?
  10. ?
  11. ?
  12. , ?
  13. 3 Cisco?
  14. VLAN ?
  15. PING?
  16. ?
  17. Ethernet?
  18. VPN?
  19. MAC - ?
  20. TCP UDP? ?
  21. NIC?
  22. ?
  23. ?
  24. NAT?
  25. MST (Multiple Spanning Tree)?
  26. RSTP (Rapid Spanning Tree) ?
  27. RIP ?
  28. EIGRP,
  29. , . BGP?
  30. , OSPF?
  31. VTP?
  32. SD WAN?
  33. MPLS?
  34. . ?
  35. . . ?
  36. FXS FXO ?
  37. - SIP PRI?
  38. RTP?
  39. SBC ?
  40. . SDP ?

?

. , (), , .


7 OSI.

. :

  1. (Physical)
  2. (Data Link)
  3. (Network)
  4. (Transport)
  5. (Session)
  6. (Presentation)
  7. (Application)

OSI


IP - ?

OSI. , IPv6 ( ).

IP - .


LAN?

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

, LAN WAN .


DHCP

DHCP (Dynamic Host Configuration Protocol). IP - . , DHCP , , DHCP .

DHCP


DNS?

DNS - Domain Name System. . hh.ru, , DNS , IP - . .

DNS .


WAN?

WAN (Wide Area Network) - , - , . WAN - , .


""? ""?

, , . , , "" "".


UTP?

100 . .


?

(, ) OSI, IP - . , , .


?

( ) - , OSI. MAC - (, ).


, ?

OSI, , . , .

- "", , . , IT - , .

, , , ?


3 Cisco?

. (access layer), (distribution layer) (core layer).

Cisco . .


VLAN ?

VLAN (Virtual Local Area Network), , . .

VLAN .


PING?

, "" ?". ICMP.


?

, .


Ethernet?

Ethernet - , ( ). Ethernet, .

Ethernet


VPN?

VPN , , , , -

VPN .


MAC - ?

OSI. MAC -

mac - .


TCP UDP? ?

OSI . TCP - - , UDP .

- TCP UDP


NIC?

NIC Network Interface Card. .


?

(proxy) - , (, , ), , .

.


?

DoS, DDoS, Bruteforce. "" , : (Backdoor), (Miner), (Bank, (Spyware), (Adware), (Rootkit).

.


NAT?

NAT IP - IP - IP - .

. NAT.


, ( , ). "" : .

, , .


MST (Multiple Spanning Tree)?

, . . MST .

. MST (Multiple Spanning Tree) .


RSTP (Rapid Spanning Tree) ?

. , STP "". . , RSTP.

STP .


RIP ?

RIPv1 RIPv2. , . - , , .

. RIPv1 RIPv2 . RIP .


EIGRP,

. EIGRP Cisco Systems. , Enhanced Interior Gateway Routing Protocol " ". EIGRP .

. , EIGRP. 7 EIGRP. , , EIGRP, - .


, . BGP?

BGP - . , , - , , , .

. 5 BGP .


, OSPF?

OSPF (Open Shortest Path First) - (Interior gateway protocol, IGP). , , RIP .

OSPF? :

  1. OSPF: LSA,
  2. OSPF:
  3. OSPF:
  4. OSPF

VTP?

VLAN Trunking Protocol, , VLAN .

VPT


SD WAN?

Software Defined Wide Area Network , , , .

SD WAN .


MPLS?

MPLS (Multiprotocol label switching) , , , MPLS (, IP-, , ).


. ?

3DES, Triple DES, AES. , , "" "".


. . ?

. , G.711 G.729. 711 64 /, 729 - 8 /.

,


FXS FXO ?

. FXS - . FXO - .

FXO FXS


- SIP PRI?

SIP - , , ISDN PRI 20 . PRI , SIP .

SIP PRI .


RTP?

VoIP . SIP , RTP . , RTP .

RTP


SBC ?

. Session Border Controller ( ) - , VoIP, () , . SBC - , , ( ).

SBC .


. SDP ?

. SDP . IP - , .

SDP .


40 , , IT . - . , , , .

: , IT - .

:)


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