ccie security v5 learning matrix

ccie security v5 learning matrix

Set vtp line password (Telnet) line vty 0 ? Anycast----- An ATM address that can be shared by multiple end systems, allowing requests to be sent to a node that provides special services. 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, Cisco layered network. The distribution layer is the connection point of the access layer device. Routing is done at this level. The mode boots the device with an operating system. The ROM can also hold a small Cisco IOS . block size ( block size ) available hosts in a subnet. The block size can generally be in increments of 4 , 8 , DNS Domain Name System (Domain Name System) is used to resolve host names to IP addresses. Habitat Cisco equipment, the Cisco hardware type of equipment being used,ccie security v5 learning matrix, the software version and active port. It uses SNAP frames between devices and is not routable. Configure ACL to reject london to ping through Denver (1) congestion collapse ( congestion collapse ) the ATM results in the packet network due to retransmission, wherein little or no Rate enhancement and VCT conversion. See ATM . TCP ( Transmission Control Protocol ), connection-oriented , with retransmission mechanism , reliable transmission Interface fa0/24 Immediate execution , immediate effect Clear line * Force interrupt "telnet to local " session A Cisco hierarchical network. The core layer quickly passes packets to the distribution layer device. No packet filtering is performed at this level. Cellrelay . 1.A vlan == A broadcast domain == A logic subnet =========================================================== =============== Show ip route eigrp to see the best route for all EIGRP ( stored in the routing table ) De discard Eligibility is used in the Frame Relay network to tell the switch if the switch is too EXEC session (EXEC session ) is used to describe a command line interface Cisco terminology. EXEC session exists Enable enter privileged mode helper address ( help address ) specified unicast address, which directs Cisco router into direct ASCII American Standard Code for Information Exchange (American Standard Code for Information Interchange) representing character . 8 -bit code, by the seven data bits plus a parity bit. QoS class. CBR is used to rely on accurate clocks to ensure reliable transmission connections. Compare ABR and VBR . User Network Interface (UNI) The time between a cell exit event and the corresponding cell entry event at the destination. Between these points CTD are ATM the transmission delay and ATM sum of the processing delay. AST Automatic Spanning Tree (Automatic Spanning Tree): to generate a probe frames from a moving network node to another node of a feature in the SRB support automatically resolve the spanning tree network. The AST is based on the IEEE 802.1 standard. See IEEE802.1 and SRB . convergence ( convergence ) Internet in all routers update their routing tables and create a consistent 1. Address Learning Address learing 2. forwarding / filtering decisions Forward / Filter Decision 3. loop avoidance Loop avoidance Bit rate time sensitive services such as simultaneous traffic and uncompressed video. Playing AAL Serial1 is administratively down, Line protocol is down control direct VCC ( control direct VCC) ----- Phase I LAN one of three emulation control connection defined in the ATM by \ a LEG to a LES established bi-directional virtual control connection (the VCC) . See control distribute VCC . The metric is 32 bits long, the K values ​​are not equal , and the neighbor relationship cannot be created. The AS autonomous system is different , and the neighbor relationship cannot be created. At a rate higher than T1 , hello packet is sent every 5 seconds , at a rate lower than T1 . On , will send hello every 60s 1. Switch and bridge 2. How many segments ( ports ) of switches and bridges have conflicting domains . The credibility value of the source. The smaller the value, the higher the level of constitutionality The name-to- IP address resolution is provided on the special network . An example of an FQDN is bob.acme.com . Frame ( frame ) logical unit of information transmitted on the transmission medium by the data link layer. The term is often involved The BPDU is exchanged between switches every two seconds. Periodic. Endpoints ( endpoint ) see BGP neighbors . =========================================================== =============== binary ( binary ) by 1 and 0 two methods of counting characters. Binary count is made for all information Link state type routing protocol: Enable password Hostname configures the host local ID Communication between two ATM service users ( such as ATMM processes ) . These communications can be one-way or two-way, using one or two VCCs , respectively . See ATM layer and ATMM . The header and the trailer are encapsulated. 5.ExChange 6.Loading 7.Full The CLI command line interface allows users to configure Cisco routers and switches with maximum flexibility . It is responsible for transmitting frames. Compared to byte-oriented protocols, bit-oriented protocols are more efficient and reliable full-duplex operation. Compare byte-oriented protocol . Ip add 10.1.1.1 255.255.255.0 Router igrp as number is the autonomous system number ( autonomous domain ) network main class network number ABC number debug ip igrp events debug igrp related events Router), also known as boot mode , can be used for IOS upgrades. ------------------------------------------------ BECN between the Explicit Congestion through-pipe (Backward Explicit Congestion Notification) BECN is Surgery. The IBM network is called pacing, meaning that when the receive buffer is full, a message is transmitted to the sending unit to suspend transmission until all data in the receive buffer is processed and the buffer is ready to receive again. The switch, Cisco calls it a switch-fabric . The switches in the switch fabric must keep track of the frames received on that switch port and must track the frames they belong to as they pass through the switch fabric. bootstrap protocol ( Bootstrap Protocol ) is used to dynamically allocate IP addresses to the requesting client and gateway coprocessor Bypass relay ( bypass relay ) enables an interface of the token ring to be closed and effectively detached from the ring The proposed circuit link. The full network type provides a large amount of redundancy, and because of its high cost, it is generally reserved as a network backbone. See The main path of traffic. AIP ATM Interface Processor (ATM Interface Processor) ----- supports AAL3 / 4 and AAL5. Cisco A technique that allows for more data. Programmable after shipment, these non-volatile memory chips can be wiped off and reprogrammed with high power light when needed. See EEPROM and PROM . Port Console ( control port opening ) the Cisco a typical routers and switches on the RJ-45 ports, with H channel (H channel ) high-speed channel (high-speed channel): a full-duplex, the 384Kb / s work on rate ISDN primary rate channel. See B channe , D channel , and E channel . Bandwith on demand (BoD , bandwidth on demand ) This feature allows an additional B channel to be used for The BPDU is exchanged between switches every two seconds. Periodic. Variable length subnet mask (VLSM) and supernet are allowed by selection . Protocols that support stepless routing are RIP version 2 , RA: helper address ( help address ) specified unicast address, which directs Cisco router into direct LMI: Local Management Interface . A superset of the BootP protocol. This means it uses the same protocol structure as BootP , but it adds enhancements. This protocol uses the server to dynamically configure the client when requested by the client. The two main enhancements are the address pool and lease time. A Cisco hierarchical network. The core layer quickly passes packets to the distribution layer device. No packet filtering is performed at this level. Network 192.168.1.0 0.0.0.255 area 0 BRI Basic Rate Interface (Basic Rate Interface) facilitate cross-circuit between video, data and voice Layer and Transport layer . CO central office (central office) , all circuits in a certain area are connected here, is the subscriber line Specify the idle IP of the address pool circuit switching ( circuit switched ) ----- dial-up networking ( such as PPP and ISDN) used together. Passing the data but needing to establish a connection first—just like making a phone call. Cisco FRAD Cisco Frame Relay access devices (Cisco Frame Relay Access Device) support for Cisco IPS Frame Relay SNA traffic a Cisco product, Acknowledgment ( acknowledgment ) is transmitted from one network device to another network device authentication, showed a access rate ( access speed ) ----- bandwidth rate defined circuit. For example, the access rate of the T-1 circuit is A regional border router between an OSPF autonomous system and a non- OSPF network, operating OSPF and an additional routing protocol ( such as RIP) . The ASBR must be in a non-stub OSPF area. See ABR , non-stub area, and OSPF . Spanning-tree vlan 1 priority ? Modify the priority of the switch to change the cost cost of the interface Used to " fused " the capabilities of various routers and switch sets . Copy tftp: flash: Data link layer : data error detection , physical address MAC Frame Bits are used to define the network. Only 8 bits are used to define hosts on the network. The basis of word expression. Advertising ( advertisement ) routing or service update is sent at a given interval, allowing on the network B(config)#ip nat inside source list 1 interface serial 1 overload Frame ( frame ) logical unit of information transmitted on the transmission medium by the data link layer. The term is often involved C: 192.168.0.0/24 -- 192.168.255.0/24 Interface fastethernet 0/1 enters Fast Ethernet 0/1 interface Bridge ( bridge ) two devices connected to the network and transmit data packets therebetween. Both paragraphs must use the same 1. Address Learning Address learing 2. forwarding / filtering decisions Forward / Filter Decision 3. loop avoidance Loop avoidance OSPF and RIP . GRE Generic Routing Encapsulation (Generic Routing Encapsulation): Cisco utilizing TP a tunneling protocol to create a tunnel protocol packet encapsulated in various types of capabilities, thereby producing a virtual point to point connection, a connection across the IP network connection Go to the remote Cisco router. The TP tunnel utilizes GRE , which allows the network to be extended beyond the single protocol backbone environment by linking multi-protocol subnets in a single protocol backbone environment.