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Cisco

Cisco Systems, Inc. is a major IT company, which produces networking equipment and network management solutions for both personal and commercial use. Questions about this company and its products belong here.

1,095 Questions

What is the goal of Cisco's 'The Human Network Effect' campaign?

Cisco would like to emphasize the way we live and work together in the future is mainly influenced by the internet and networks in general. In several campaigns Cisco shows different use-cases where networking already changed our lives today.

Which three terms describe different types of computers?

Computers

Types | Uses

Personal computer* / laptop ------ Home and office applications

Server -------------------------------- Commercial use and data storage

Super computers -------------------- Military use and weather forcasting

*personal computers in a network are also know as "workstations"

What is the ticker symbol for Cisco Systems?

The ticker symbol for Cisco Systems is CSCO and it is traded on the Nasdaq.

Where can one find more information about Cisco wireless APs?

The best resource for information about Cisco wireless Access Points is the Cisco website, which has extensive listings for all models, including technical details and manuals for many of these models.

Cisco router log file?

Cisco routers don't generally log to a file. They keep it in "buffer", i.e. RAM. You can configure the device to send it to an external syslog server. You *probably* can make it log to a local file, but that's unusual. They don't have a lot of disk space, and it's all flash anyway.

Where does a collision domain exist in a switched network?

In a LAN packet-switched environment, such as with an Ethernet network, the transmission of the data packets relies on packet switches, routers, and LAN cables. In a LAN, the switch establishes a connection between two segments only long enough to send the current packet. Incoming packets are saved to a temporary memory area or buffer in memory. In an Ethernet-based LAN, an Ethernet frame contains the payload or data portion of the packet and a special header that includes the media access control (MAC) address information for the source and destination of the packet. When the packets arrive at their destination, they are put back in order by a packet assembler. A packet assembler is needed because of the different routes that the packets may take. Bottom Line is a router breaks up a number of computers into segments. So the collision domain is all the computers in that segment. The router prevents data traveling to the other segment when it is not addressed to that segment.

When creating a packet how does the network layer determine the size of the packet?

The Network layer (Layer 3, typically IP) will receive a segment from the Transport layer (Layer 4, typically TCP or UDP), and will add its own header to it to create a packet. The size of the packet will thus always be the size of the segment plus the Network layer header, the same as when the next layer down (the Data Link layer, layer 2, typically Ethernet) encapsulates the packet into a frame for transmission.

What are the advantages of Cisco security certification?

Advantages of Cisco security certification include recognition for the learned skills available to employers, combined with greater possibility of financial gains through increased wages. The ideal benefit is the increase in knowledge and skill which leads to greater self confidence in your own abilities as an IT specialist.

How does one configure a Cisco server for load balancing?

The process for configuring a Cisco server for load balancing can be quite confusing. If one wishes to do it correctly, they should visit the Cisco IOS IP website where they have step by step tutorials on how to do so.

What is the custom subnet mask for 195.85.8.0?

195.85.8.0 is a class C network. The subnet mask would be 255.255.255.0 and the network address is 195.85.8.0

What is the Best Way To Pass Cisco CCNA 200-301 Exam?

Cisco CCNA 200-301 exam has a great worth in this world. I got success with excellent results with the help of braindumpsstore real Cisco CCNA 200-301 Practice exam. I easily prepared and passed exam in the first attempt.

What is the purpose of the Cisco 800 series?

The Cisco 800 series is a series of routers that handle networking. They provide multiple access to the internet at once for both residential and corporate usage.

What is the purpose of Cisco CCNA lab?

A Cisco CCNA lab helps Cisco IT learners get access and perform routing and Layer 2 core switching lab configurations over the internet from a personal computer.

What utility can be used to dedrmine end-to-end connectivity between source and destination?

You can use the ping command to verify connectivity. Additionally you can use traceroute to determine how the packet reaches that destination.

What is the difference between HTML and HTTP?

HTML stands for Hyper Text Markup Language.

HTTP stands for Hyper Text Transfer Protocol.

HTML file is a text file containing small markup tags.The markup tags tell the Web browser how to display the web page.HTML file can be created using a simple text editor(e.g.Notepad).It is static scripting language.HTML elements are defined using HTML tags.

On the other hand HTTP is a protocol of W3(World Wide Web).With the use of HTTP W3 provide a single interface for accessing all the internet protocols

Cisco Catalyst feature automatically disables the port in an operational PortFast upon receipt of a BPDU?

Explanation/Reference:

This question is to examine the BPDU Guard.

To prevent loops from occurring in a network, the PortFast mode is supported only on nontrunking access ports because these ports typically do not transmit or receive BPDUs. The most secure implementation of PortFast is to enable it only on ports that connect end stations to switches. Because PortFast can be enabled on nontrunking ports connecting two switches, spanning tree loops can occur because BPDUs are still being transmitted and received on those ports.

The PortFast BPDU guard feature prevents loops by moving a nontrunking port into an errdisable state when a BPDU is received on that port. When the BPDU guard feature is enabled on the switch, spanning tree shuts down PortFast-configured interfaces that receive BPDUs, instead of putting them into the spanning tree blocking state. In a valid configuration, PortFast-configured interfaces do not receive BPDUs. If a PortFast-configured interface receives a BPDU, an invalid configuration exists, such as connection of an unauthorized device. The BPDU guard feature provides a secure response to invalid configurations because the administrator must manually put the interface back in service.

What are the advantages of Cisco Wifi?

Advantages of the Cisco Wifi are that is fast, and had great performance. In tests, it has been proven to be about 169 percent faster in the 2.4 GHz spectrum and 64 percent faster in the 5GHz spectrum.

How do you get past cisco guest access?

There is no way to get past Cisco guess access without hacking into the router itself. However, once you have hacked into a router, you've basically broken into someone's personal network and into their property. You've now broken the law.

Why is the transport layer not present inside the network?

The transport layer provides additional function to compensate for the limitations and impairments of the network layer, in order to meet requirements (e.g. QoS) of the upper layer. For example in TCP/IP, IP provides only best effort service. To provide the reliable service required by some applications - that is, to compensate for the shortcomings of best effort service - TCP establishes connections and implements flow control and congestion control on an end-to-end basis. Answer Actually, it is, just not through normal tools. Special programming is required to access the upper layers of TCP.

Which statements describe characteristics of extended access lists?

They check packets by source address

They check packets by destination address

What does clock rate do on packet tracer?

A clock-rate is the speed at which the Serial connection sends data to another router and each connection must match the others clock-speed or a speed mismatch error will occur. For packet tracer, the clock-rate has no effect.