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The Cisco Unity service is a service that providers information, technology and collaboration details and software for people looking to branch out to other companies.

there may be the issue with the layer 2 protocol like hdlc or ppp is not configured or wrongly configured if the interface is serial interface.

Cisco Secure ACS provides companies with protection against potential threats and security breaches. It categorizes and recognizes threats from both within and without the company and greatly reduces the amount of work and worrying required of your company.

Found in many different places, the price of a Cisco 2651XM router can vary considerably also. A brand new router on Amazon can cost around 300, though if you want a cheaper version, a used version will cost you much less.

Complex address schemes

The most common WAN data-link protocols are:

1. HDLC 2. PPP

3. Frame Relay

4. ATM

Nyan cat

A device identifier usually refers to a MAC address.

It is submitted that, Anila Augustine (My daughter),was not feeling well and caught a chicken pox which rendered her unable to be present at classes

rip is short for routing information protcol

it is a routing protocol that shared routing tables from 1 router to another to a maximum of 16 hops of 16 routers

USb or AUX

If the sending and receiving protocols are different, then you have a mismatch. Think of a speaker using French but the receiver only understanding Spanish. They will not be able to understand each other, and this is what happens with network protocols.

They can see the communication but have no clue about the content or what to do with the request.

Route table lookup

ide

when your working in the switch and suddenly an error occurred that message will simply prompt in the window irrespective of the work your doing it. message may come in the middle of the command or etc. to overcome that we use logging synchronous .simply to prevent the interruption of command text input we use logging synchronous .

RIP_JITTER, from Chapter 4:Distance Vector Routing Protocols. This is found in the "Check Your Understanding" questions, page 214.

• Definition of Hardware Specifications: The details of operation of cables, connectors, wireless radio transceivers, network interface cards and other hardware devices are generally a function of the physical layer (although also partially the data link layer; see below).
• Encoding and Signaling: The physical layer is responsible for various encoding and signaling functions that transform the data from bits that reside within a computer or other device into signals that can be sent over the network.
• Data Transmission and Reception: After encoding the data appropriately, the physical layer actually transmits the data, and of course, receives it. Note that this applies equally to wired and wireless networks, even if there is no tangible cable in a wireless network!
• Topology and Physical Network Design: The physical layer is also considered the domain of many hardware-related network design issues, such as LAN and WAN topology.

R1(Config)#ip route x.x.x.x y.y.y.y z.z.z.z

X will be the source network

Y will be the source network's subnet mask

Z will be the destination network.

*Note you can also set the destination as an outbound interface.

class (its case sensitive)

It is short for copy running-config starting-config. Running-config is the configuration of the router as you have modified it and which is currently operating, held in RAM (gone after a reboot), and you copy it to the starting-config which is in NVRAM and gets loaded by the router when it boots/

So essentially you're saving what you have now to the persistent storage so your router will still work after a reboot.

The passing score is 80%. In previous versions of the exam, that was a strict 80% on every section; however, in Version 5 of the CCIE Lab exam, that is treated as a weighted average passing score. This should cause candidates to relax a little knowing that if you come "that close" in Troubleshooting, you still have a chance to save the day in the Configuration section.

In total there is 65535 UDP/TCP ports allocated . However, the first 1024 port numbers are reserved for common applications such as ftp (20,21), ssh (22), http (80) etc. This means that for other common applications there is "only" 64511 available port numbers.

router

Top Talkers is a feature in Cisco IOS software to provided granular statistics regarding traffic patterns traversing specified networked devices, commonly routers but also some switches. A useful tool for monitoring network load