cisco ccna book

Cisco CCNA Chapter 4 answers in the second semester, Cisco ccna second semester 1. 2. All the routers running the Distance Vector Routing Protocol have disconnected all power supplies (including spare batteries ). What happens when these routers are reloaded? They share all r

Cisco CCNA Chapter 7 answers for the third semester, Cisco ccna for the third semester 1. 2. 3. 4. 5. 6. 7. 8. 9.

Cisco CCNA Chapter 6 answers for the third semester, Cisco ccna for the third semester 1. 2. 3. 4. During the implementation of inter-VLAN routing, what are the important considerations when configuring the sub-interface of the rou

Cisco CCNA Chapter 2 answers for the third semester, Cisco ccna for the third semester 1. Which command line interface (CLI) mode allows users to configure switch parameters such as host name and password? User Execution Mode Privileged Execution Mode Global Configuratio

Cisco CCNA Chapter 5 answers for the third semester, Cisco ccna for the third semester

indicates that the configuration is not loaded into the system, often used for Password Recovery 4: Common show commands Ccna # showrunning-config # view the current configuration, including the default configuration of the device Ccna # showstartup-config # view the startup configuration, that is, the saved configuration Ccna # showversion # view the version

i am the 51CTO lecturer Kanhaijiang, at the Institute 11.11( People's IT Learning Festival) Come on the occasion, and everyone to share my CCNA customs clearance experience. The text is coming ~ ~ ~in writing this title, I seem to have returned to the original to learn Cisco Qizaotanhei, but a fun time. Obviously, I am definitely not a network genius, no extraordinary talent, even at that time even a comput

Because the study of the major is computer network technology, but in school, and did not learn how much network knowledge, so in order to be worthy of the professional, in 06, when working in the Galaxy education in hit a CCNA class, two weeks of the course, a few hours a day.The result is still not learned, because there is too much theory, too little real exercise.So I bought a book, repeatedly see, the

CCNA Study Notes (ii)--Initial knowledge of Cisco devicesIn the previous chapter we recognized the fundamentals of networking, and now we are formally exposed to Cisco devices.1, first we first understand the main components of a Cisco device:ROM (read-only memory): mainly save the post software, save the router boot b

Tags: Cisco CCNA router Password managementfor device security, the device administrator typically sets the user name and password for the device. Here's how to configure 3 passwords, with emphasis in the middle.Username Test password Cisco//This is to set up a layer of accounts and passwordsEnable password 123// This is the Setup admin passwordRouter (config) #l

.---------------------------------------------------------------, the commands for setting the clock frequency and enabling the serial interface are:Router (config) #interface Serial 0/0/0Router (config-if) #clock rate 56000Router (config-if) #no shutdown---------------------------------------------------------------Once you have changed your router configuration, remember to use the show command to verify the accuracy of your changes, and then save the changed configuration as a startup configu

efficiency of the router configuration, in the Cisco Device command can be abbreviated "typing the first few letters of the command, when the first few letters of the command press the tab can be filled, or directly enter can also execute the command". ）Note: Write is the Save command, and this command executes in privileged mode. In other modes (not available in user mode), you can add do enforcement before the command.3, after the completion of th

Tags: cisco CCNA RIPRIP (Routing information Protocol) routing protocol is a kind of routing protocol which has been widely used in small and medium networks. RIP uses UDP packets to exchange routing information with a UDP port number of 520. Normally the RIPV1 message is broadcast, while the RIPV2 message is a group broadcast message, and the multicast address is 224.0.0.9. RIP sends an update message out

[Lab environment] Cisco Packet Tracer 5.3.2 [PURPOSE] I will not describe the basic commands of Cisco IOS too much. I will focus on some common Cisco IOS skills to improve the efficiency of subsequent experiments. [Experiment topology] Lab procedure] 1. Configure the Cisco Packet Tracer according to the topology and s

Tags: cisco CCNA eigrpEIGRPin order to enhance the internal Gateway routing protocol, it can also be called the enhanced Internal Gateway routing protocol. EIGRPcombining the link state and the distance vector type routing protocolCiscoproprietary protocol using a dispersion correction algorithm (DUAL) for fast convergence, you can reduce the bandwidth footprint by not sending periodic routing update inform

Tags: cisco CCNA VLANVLANthe Chinese name is"Virtual local Area network". is a set of logical devices and users, these devices and users are not subject to physical location constraints, can be based on functions, departments and applications and other factors to organize them, communication with each other as if they are in the same network segment, hence the name of the virtual local area network. VLANwor

Tags: Cisco CCNA device Basic Configuration1. Define a host name for the routerrouter>enable \ \ Enter Privileged modeRouter#configure terminal \ \ Enter global configuration modeRouter (config) #hostname R1 \ \ Change the router nameR1 (config) #The default router name is "Router", which can be used to differentiate the device from the network for easy management.2. Turn off Domain name resolutionR1 (confi

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8 9

LAN.WANThe last network segment is a WAN connection and requires 2 host addresses. Support WAN links with just 2 primary seats. 2^2-2 = 2.This leaves 8 bits to define the local subnet address. The next available address block is 172.16.2.192/30.Address: 172.16.2.192Binary representation:10101100.00010000.0000010.11000000Mask: 255.255.255.252Represents 30 bits in binary:11111111.11111111.1111111.11111100The IPV4 host address range provided is:172.16.2.193 to 172.16.2.194, broadcast address is 17