ccna voucher

1 2 3 4 5 6 7 8 9

ICMP Echos to 192.168.20.1, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 24/48/84 MS From the above, we can see that through the deployment of layer-3 switching technology, the host between VLANs can communicate with each other. This experiment is complete. [PL1]Disable layer-3 routing to simulate hosts. [PL2]Define the default gateway. [PL3]Enable the layer-3 routing function. By default, the layer-3 Switch disables the routing function. To enable int

This section lets us learn the next Frame RelayFrame Relay in CCNA's exams and daily work are seldom useful, but we still want to know, it is after all a CCNA in the focus.Frame Relay (Frames relay)Also referred to as FRFrame Relay is an important WAN technology, its main function is to connect two or more long-distance LAN. Frame Relay is mainly a packet switching technology, usually we just want to know how to connect LAN through Frame Relay and lon

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 boot program.RAM (random memory): loss of data, can store configuration files. >>> equivalent to PC memoryNVRAM (non-volatile memory): p

Failure phenomenon: Lenovo Security Bulletin: LEN-10605 Potential impact: Non-privileged user disclosure Lxca temporary software definition administrator credentials Severity: High Impact Range:

Aliyun Server Base configuration only 28.8/month, the annual payment will only take 10 months of money. All you have to do is turn on your phone and point to the two-dimensional code, sweep! Details >> Aliyun Server Base configuration only

This chapter begins to look a bit confused, searching online for an article to help understand the link address Set-user-id1. Each process has a set of user IDs and group IDs that are digitally represented. The actual user ID (real), the actual

According to the Sina Open forum some Netizen's introduction, first login needs to enter PIN code, generate Accesstoken data, save, can stay for two times login use, I provide examples of Java SDK to modify and test through. Write a class

1. The use of wealth to redeem the download coupons (this is a thing of its own just change mode): 2. We login in Baidu, and then find in the Library "library open download New era" Click to enter, as shown in the picture. 3. Now let's go to

Routing protocols are used for router selection paths and for managing routing tables, which support routable protocols by sharing routing information between routers. Routing information is passed between neighboring routers to ensure that all

Enter "? The Show all HelpEnter the command? The show full command wordEnter the command? "Show command-available parameter informationPress "TABLE" to complete the command all wordsPress "up or down" to show used commandsPress "CTRL + Z" to leave

CDP protocol: Cisco Discovery ProtocolShow CDPShow CPD Neighbors: see which Cisco devices are connected to the current deviceCDP timer: Modify send interval timeCDP Holdtime: Modify retention timeCDP advertise-2: Modify version numberDebug CDP

Network devices (routers, switches, firewalls, and so on) require an operating system as well as computers. Network devices use a dedicated operating system, collectively known as iOS (Internetwork Operating system, network operating system).(1)

Seven-layer protocol and related instructionsPhysical layer Device: hub, Repeater, encoder-decoder, transmission media connectorHubs connect devices that share the same bandwidth in the same conflict domain, the same broadcast domain.Data Link Layer:

Users of QQ reading software to the detailed analysis to share the QQ reading coupons access. Ways to share: 1, the occasional event gift; 2, the growth level of the monthly gift package rewards, the higher the level, the number of

VswitchThe following figure shows the instance topology configuration: Basic vswitch Configuration Switch> enable  Switch# config ter   Switch(config)# hostname Switch  Switch(config)# interface vlan 1   Switch(config-if)# ip address 192.16

Clock Configuration 650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131227/0454301F6-0.png "title =" 1.png"/> 1. Configure vroa A (assuming vroa A is the DCE end of the serial line) Router> en Router # conf t Router (config) #

Dynamic Route RIP RIP broadcasts UDP packets to exchange route information and sends route information updates every 30 seconds. The maximum number of hops supported by RIP is 15. The experiment has been verified, but the topology is

[Lab environment] Cisco Packet Tracer 5.3.2 [PURPOSE] Do not describe the basic commands of Cisco IOS too much. Focus on learning Common Cisco IOS skills to improve the efficiency of subsequent experiments. [Experiment topology] Lab procedure] 1.

[Lab environment] Cisco Packet Tracer 5.3.2 [PURPOSE] Exercise configuring vswitch remote telnet Management [Experiment topology] Lab procedure] 1. Connect the device by topology. The router only configures the interface IP address, without