ccna textbook

Based on security considerations, many companies may use the Wide Area Network Technology for Intranet Communication.   Lan Wan Network cable Serial Line Transmission Distance near Long Transmission Distance

802 provisions802.1 bridging802.2 Logical Link Control802.3 Ethernet802.4 Token delivery Bus802.5 Token Ring802.6 Distributed queue Dual-entry bus access Service802.9 Integrated Services802.11 Wireless LAN802.14 Cable TV802.15 Person Wireless

First, the actual application of the network classificationBlock data streams: FTP, TFTP, inventory updateNo direct human interaction requiredBandwidth is important, but not a critical factorInteractive Data Flow: Inventory queries, database

1. Network Segment (segmentation)In order to cope with the increase of the network caused by slow user response and traffic congestion, the large network is divided into a number of small network behavior. You can use devices such as routers,

Network Fundamentals  3. Which layer of the OSI 7-layer network model does the hub work on? DA, Transport layerB, Network layerC, Data link layerD, Physical layer 4. In the following options, the error about the protocol and the default port

Routing Protocol Overview : Through a routing protocol, many routes to the same target network are learned, and metric is placed in the routing table. Metric, the same time, put in the routing table. Through a variety of routing

WAN ( Wide Area Network ) WanThe data link layer, the physical layer, running in the OSI model.The protocols of the data link layer are mainly:HDLC (High-level Data Link control)PPP (Point-to-point Protocol-to-dot protocol)Frame-relay (Frame

Transport Layer: two important agreements TCP and the UDPTcp: Connection-oriented protocol: to establish a connection (three handshake of TCP) before transmitting user data Error checking Packet serialization Reliability

After learning rip, we know some basic routing protocols for routing, and now let's get to know a private protocol for Cisco: EIGRPEIGRP Routing Protocol(also known as Enhanced Internal Gateway Protocol Enhanced Interior Gateway Protocol)It is a

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OSI seven-layer model Application LayerPresentation LayerSession LayerTransport Layer Core LayerNetwork Layer aggregation LayerData Link Layer Access layerPhysical LayerFirst, the physical layer1. Transmission unit: bit bitstream2. Device NIC,

Switch port configurationA LAN switch is an intermediary device that provides interconnection for each segment of a network. Therefore, the physical interface on the switch does not have an IP address. The physical interfaces on the routers are

The main learning is the Cisco Internetwork Operating System (IOS) software and the configuration files for routers and switches. This includes accessing and using the IOS CLI mode and configuration process, as well as understanding the meaning and

1. Static route with one jump: -----------------------R1---------------------------- R1 (config) #ip Route 2.2.2.0 255.255.255.0 12.1.1.2 R1 (config) #ip Route 23.1.1.0 255.255.255.0 12.1.1.2 R1 (config) #ip Route 3.3.3.0 255.255.255.0 12.1.1.2

Concept: 1. Neighbor table: The address of the direct-attached router and the interface to which it is connected 2. Topology table: A. Routing Status: P (passive) a (activity) B. Feasible distance (FD): Minimum metric to destination (metric) C.

The experiences of successful users are undoubtedly very important to us, because they not only know the road to success, but also know the road to failure, these experiences are of great reference value to latecomers. Friends who have already passed ccna are very willing to share their experiences with you. Some netizens collected some experiences and sorted them out, hoping they could help those who are preparing for the

major parts: The first part is the Computing Principle, operating system basis, system development, standardization and Intellectual Property Rights of biased theory. The second part is a hands-on technical part, including the network and operating system. The difficulty is roughly equivalent to MCSE + ccna + rhce. The third part is partial-design network planning and project implementation. For an engineer with a certain degree o

as follows. After the configuration is complete, you can test the connectivity with router R1 on router R2, as shown in Figure 8.34, which indicates the communication effect after two-way authentication is successful. Configuration of two-way PAP authentication on vror2 R2: R2 (config) # username r1 password cisco R2 (config) # inte s1/0 R2 (config-if) # ipaddress 192.168.3.2 255.255.255.252 R2 (config-if) # encapsulationppp R2 (config-if) # pppauthentication pap R2 (config-if) # ppppap sent-us

time, I had to learn by myself. I think it would be more difficult. I went to my brother's college to listen to some courses, went to the enterprise to attend some training, and also heard beiyou's teacher talk about courses such as ccna, and had a consensus with them: if the students can understand the content within an hour, the teacher does not need to spend two classes in the class to introduce it. This is too inefficient, this learning method ca

1.1 Basic LPCThe person reading this textbook should have read the basic LPC textbook or be familiar with the mud world.ProgramWriting.It's not just about building rooms and writing objects in the area, but also about what the programs you write are doing. if you feel that you are not enough, go back to read the basic LPC and take a fancy to the level LPC textbook