Pass4sure offer a host of questions and answers and have proliferated in recent years, which MAY lead you to preparation for the Tests. But the spreading of braindumps sites has allowed some dedicated professionals and other students to pass their exams, but after the 640-802 test, they are left with no study guide, notes or [...]
Archive for the ‘IT Technology’ Category
March 5th, 2010 - 2:32 am ≡ by admin ≡ in CCNP, Cisco Certification, IT Certification, IT Technology
Pass4sure Cisco 640-802 exam preparation exams
August 3rd, 2009 - 6:59 am ≡ by admin ≡ in IT Technology
MPLS routing and control structure
This is the Cisco CCIP (Cisco Certified Internet Engineer) certification of MPLS (multiprotocol label switching) part of the certification skills certification courses in the second article. CCIP Exam 642-611 – Implementing Cisco MPLS Exam to test these skills courses. You have to understand the entire concept of MPLS there are several structures. The structure of [...]
July 30th, 2009 - 2:13 am ≡ by admin ≡ in IT Technology
Tcp Intercept – Deny DDOS attack
In order to prevent hackers using DDOS attacks against tcp syn-type servers, Cisco added the 12.4IOS characteristics of TCP Intercept HACKER — R2 — server (1.1.1.1) If a hacker to server after R2 launched DDOS type tcp syn flood attacks, launched a large number of half-open TCP session, trying to run out of server-side resources, [...]
July 18th, 2009 - 2:18 am ≡ by admin ≡ in IT Technology
RPF Check
RPF Check: In order to forward a multicast datagram, a router checks if the packet is received on the interface it would use to forward a unicast packet back to the source ==>If the RPF check succeeds, the router forwards the packet ==>If the RPF check fails, the packet silently discarded Reverse Path Forwarding IP [...]
July 17th, 2009 - 4:02 am ≡ by admin ≡ in IT Technology
ASA VPN load-balancing
vpn load-balancing (VCA) (PIX 7.0 does not support, as well as more than ASA5520 support only) (does not support A / A) vpn load-balancing of the remote client only to initialize the following conversation valid (as well as remote vpn only able to provide easy vpn load) • Cisco VPN Client (Release 3.0 and later) [...]
July 15th, 2009 - 8:16 am ≡ by admin ≡ in IT Technology
Storm Control
Understanding of storm control Storm control to prevent the switch port is the LAN broadcast, multicast, or a physical port unicast storm damage. Turmoil in the local area network packets flooding in the local area network, the establishment of the excessive traffic and the loss of network performance. Errors in the protocol stack or network [...]
July 11th, 2009 - 2:54 am ≡ by admin ≡ in IT Technology
Difference between LSA 5 and LSA 7
Difference between LSA 5 and LSA 7 To provide the ability of carrying external routes originated in the NSSA, a new LSA type was defined, Type 7 LSA. It has the structure and semantics of a Type 5 (External) LSA, with a two differences: 1.Type 7 LSAs can be originated and propagated within the NSSA, [...]
July 10th, 2009 - 2:35 am ≡ by admin ≡ in IT Technology
Analysing CCNA 640-802 EIGRP examination
LAB: CCNA 640-802 EIGRP Question# After adding RTR_2 router, no routing updates are being exchanged between RTR_1 and the new location. All other inter connectivity and internet access for th e existing locations of the company are working properly. The task is to identify the fault(s) and correct the router configuration to provide full connectivity [...]
July 9th, 2009 - 3:43 am ≡ by admin ≡ in IT Technology
Switch setting: IP-MAC binding
Cisco in the following three options, Option 1 and Option 2 is the same as the function of the realization, that is, the specific binding of the switch port on the host-specific MAC address (network card hardware address), Option 3 is the specific At the same time, the switch port on the host-specific binding of [...]
July 6th, 2009 - 2:57 am ≡ by admin ≡ in IT Technology
Three ways to achieve NAT
NAT, Three methods: 1, Static NAT (one-on-one) 2, dynamic NAT (many-to-many) 3, port multiplexer PAT (many-to-one) 1, static configuration (1) configure the external interface IP address (2) internal interface IP address configuration (3) in-house local and global address internal address translation between router (config) # ip nat inside source static local-ip global-ip (4), including the [...]