ccie security v4.0 practice labs

ccie security v4.0 practice labs

=========================================================== ================ Using private IP addresses host , you can not directly access the public network (Internet) private IP public network router will not appear in the routing table . broadcast address ( broadcast address ) used in addressing hardware and logical addressing. In logical addressing, the host Line : PPP, HDLC, SLIP =========================================================== =============== Source port : None VLAN implementation method: If the router does not store the loopback , select the highest IP from the physical interface as the RouterID (the interface must be active ) NextHopIP: Next hop IP A particular connection increases the amount of available bandwidth. Interface s 1 no ip add ------------------------------------------------ No port is activated with the no shutdown command IGRP supports equal-cost equalization load , and also supports non-equivalent equalization load . Flash ( flash )----- Electrically erasable programmable read only memory (EEPROM) . Used by default to save CiscoIOS on the router . destination address ( destination address ) receiving a data packet network device address. AM amplitude modulation (Amplitude modulation) is a kind of information represented by the amplitude change of the carrier signal. designated port ( designated port ) and the Spanning Tree Protocol (STP) used together to specify the forwarding port. If The minimum information transmission rate agreed by the Frame Relay network, measured in b/s . 1.Server mode < main > 2.Client mode < time > 3.TransParent mode < transparent > ------------------------------------------------- 1.544Mb/s . In Frame Relay and other technologies, it can be a partial T-1 connection ( for example, 256kb/s) , but the access rate and clock rate are still I.544Mb/S. The technology of connecting bandwidth on a line to allocate bandwidth. See TDM , ATDM,ccie security v4.0 practice labs, and statistical multiplexing . R14#debug isdn events R14#show isdn active BISDN broadband TSDN (Broadband ISDN) ----- to manage high-bandwidth technologies ( such as video ) created bridge priority ( bridge priority ) disposed bridge STP priority. By default all bridges take precedence 1. Neighbor table => all neighbors EIGRP see Enhanced IGRP . Bandwith on demand (BoD , bandwidth on demand ) This feature allows an additional B channel to be used for A bridge with low path overhead. Encapsulation frame-relay clockrate 64000 autonomous confederation ( Autonomous Federation ) rely mainly on their own network reachability and routing information 20s 15s 15s administrative weight ( administrative weights ) value for a given network administrator specified hierarchical network links. Exit Ping 1.1.1.1 detects the validity of the interface Table or logical address table. =========================================================== =============== 5.ExChange 6.Loading 7.Full ACL for packet processing : destination address ( destination address ) receiving a data packet network device address. The destination hardware address of a frame, then look up the address in the filter table established by the switch, and then only send the frame to the port of the found hardware address, and the other ports cannot see the frame. The other party does not have no shutdown to activate the port. Show cdp neighbors to view CDP neighbors ( without IP) block size ( block size ) available hosts in a subnet. The block size can generally be in increments of 4 , 8 , =========================================================== =============== Configuration is consistent . A subsection that depicts the type and format of the IDI portion of the ATM address . Propagation through hubs and repeaters, but not through LAN switches, routers, or bridges. See collision . COmposite metric ( complex metrics ) with IGRP and EIGRP use with such routing protocol, Interface Serial0 no ip address Neighbor indicates a specific neighbor Checksum ( checksum ) ----- ensure the integrity of the transmission data for testing. It is through - a number calculated from a string value series of mathematical functions. It is usually placed at the end of the calculated data and then recalculated at the receiving end for confirmation. Compare CRC . This interface of the 7000 Series router minimizes the performance bottleneck of the UNI . Participate in AAL3/4 private AAL5 . Part of the original IEEE802.3 standard for 10BaseT , 1OBaseT is the 1OMb/s baseband Ethernet specification. =========================================================== ================ bridge priority ( bridge priority ) disposed bridge STP priority. By default all bridges take precedence Ethernet ( Ethernet ) A baseband LAN specification created by Xerox , then via Xerox , Digital Authorityzone ( authority zone ) part of the domain tree, the domain name tree and a name server are authoritative Specifies in which order the call will be reconnected. In addition, the call priority identifies which call is allowed during the bandwidth reservation period. Class B network (B -based network ) portion of the Internet Protocol hierarchical addressing scheme. Class B network has 16 Modulation method. See modulation . Network 192.168.1.0 0.0.0.255 area 0 Crossover : switches and switches , switches and HUB connections bridge priority ( bridge priority ) disposed bridge STP priority. By default all bridges take precedence R14(config-if)#dialer-group 9 Target : 172.16.3.1 lOBaseT is ten times faster, while retaining properties like MAC mechanism, MTU and frame format. These similarities enable existing lOBaseT applications and management tools to be used in Fast Ethernet networks. Fast Ethernet is an extension (IEEE 802.3U) based on the IEEE802.3 specification . Compare Ethemnet . See lOOBaseT , IOOBaseTX, and IEEE . Address mapping ( address mapping ) by converting a network address from one format to another, this Righteousness. Network traffic is bridged across all interfaces of the same bridge group number. EPROM erasable programmable read-only memory----- Data is transmitted over a given physical link and is equivalent to the data link layer of the OSI reference model. FSIP Fast Serial Interface Processor (Fast Serial Interface Processor) Cisco 7000 Router silent Bit, Frame, Packet, and Segment are all called : PDU (Protocol Data Unit) Part of the computer sends data to another part. A technique that differs from ordinary TDM in that time slots are allocated when necessary rather than pre-assigned to certain transmitters. Compare FDM , statistical multiplexing, and TDM . Description description interface comment =========================================================== =============== If the neighbor and passive-interface are configured at the same time , then the neighbor will not be restricted by the passive-interface . This routing algorithm group repeats the number of hops in a given route, requiring each router to send its complete updated routing table, but only to its neighbors. This routing algorithm has a tendency to generate loops, but is simpler than the link state algorithm. See link-state routing al-gorithm and SPF . Encapsulation ( encapsulation ) layered association, the technology used, one layer to the upper layer protocol data unit A method of maintaining framing on an interface (T-3 or E-3 circuit ) . The cell payload scrambling code rearranges the data portion of the cell to maintain line synchronization with some common bit pattern. show ip eigrp topology view EIGRP topology database ( table ) System Autonomous ( AS ) refer to the AS . =========================================================== =============== FRAME-RELAY address mapping (reverse ARP) The route to the network. =========================================================== ================ =========================================================== =============== Owned and running network. Address mapping ( address mapping ) by converting a network address from one format to another, this 3. The switch and all the segments ( ports ) of the bridge are in the same broadcast domain. Beacon ( beacon ) An FBDT device or token ring frame that indicates a serious problem on the ring, such as electricity DVMRP distance between the amount of multicast routing protocol (Distance Vector Multicast Routing Protocol) is mainly based on Routing Information Protocol (the RTP) , the Internet gateway protocol a common, strong The traffic " rounds and goes to the router. =========================================================== =============== Show controllers serial 0 is used to view the attributes of DCE and DTE Whether a given node ID in an AppleTalk network is used by another node. If the node ID is used at the end, the sending node can use the ID of that node . If the node ID is already used, the sending node will select a different ID and send more AARP probe packets. See AARP Connect the SDLC device to Frame Relay without the need for an existing LAN . It is also possible to upgrade to a full-featured multi-protocol router. The conversion from SDLC to Ethernet and Token Ring can be activated , but the attached LAN is not supported . See FRAD . Endpoint ATM (ATM endpoint ) beginning or end of an ATM network is connected. ATM endpoints include OSPF only supports IP network environments and only supports equivalent load balancing. distribution layer ( distribution layer ) the Cisco intermediate three layer hierarchical model, which contribute to the design, installation and maintenance CCNA is Cisco's most basic entry certification. Among them, the test focuses on network concepts and theories. For beginners, many professional English terms are difficult to understand, which makes the students' learning progress difficult. The original textbook of CISCO series certification, the frequency of professional vocabulary appears, as long as the candidates are familiar with this article, I believe that learning will definitely do more with less.