Get To Know About Cisco Architecture Certification

Cisco Qualified Architect is the highest level of qualification possible within the Cisco Qualifications program. It is the pinnacle for individuals wishing to show their formal approval of Cisco technologies and infrastructure structure.
This famous certification identifies the architectural expertise of system Architects who can support the increasingly complicated networks of international organizations and effectively convert company techniques into transformative technical techniques. A Cisco Qualified Architect accumulates the company specifications and goals necessary to produce a blueprint for a, large-scale, complicated, international system. They can convert company factors and goals into functional specifications for a system design. In addition, Cisco Qualified Architects can clearly communicate and recommend suggested Cisco system architectures.
Requirements fro Cisco Certified Architect
There are no formal training programs available for the Cisco Certified Architect certification. However, applicants wishing to achieve their Cisco Certified Architect certification must meet before an in-person board made of Cisco-appointed exam committee members during which the applicant defends their proposed network solution.
Jobs of the Cisco Certified Architect
Lead development and progress of architecture
Analyze technological innovation and industry market trends
Establish relating to concepts for networks
Selection of technological innovation and products
Identification of company source needs
Lead the development of interaction and knowledge plan for system architecture
Applicants wanting to apply to become a Cisco Qualified Architect must also hold a real Cisco Qualified Style (CCDE) qualification, verifying their professional stage design and business stage expertise set.
Essential of the Cisco Certified Architect
A Cisco Qualified Architect accumulates the company specifications and goals necessary to produce a blueprint for an integrated, large-scale, complex, global system. They can convert company factors and goals into functional specifications for a system design. In addition, Cisco Qualified Architects can clearly communicate and recommend suggested Cisco system architectures.
Qualification Steps
Step One: Program and Interview
Applicants for CCA are necessary to publish a CV (subject to verification), a conclusion of a structure venture and a non-refundable fee of US$ 3,750. Architect Selected panel associates, hired by Cisco, will appointment

Reasons Why Your Aquarium Plants May Be Dying

Live aquarium plants can be a beautiful addition to an aquarium, whether you have it stocked with fish or not. But many aquarium owners who have trouble keeping their plants alive finally give up populate their aquarium with artificial plants. But keeping your plants alive and healthy is not really that difficult if you know what they like and need. Here are some of the main reasons that aquarium plants end up dying or not thriving well.

Failing to provide enough light for your plant. Light is extremely important for a plant. You can provide a plant with buckets of food and nutrients, but if you don’t give it enough light, it won’t last long. Now these days, most of the tanks that you find will come with a light attached to the tank top. Alternatively, it will come with pre-drilled holes that have been setup to allow you to install a light relatively easily. If not, most acrylic tanks will allow you to drill your own holes and set up your own lighting. Of course, another perfectly good alternative is simply to place your aquarium on the south side of your apartment or house, near a window where it will be sure to get plenty of light.

Not paying attention to your plant’s roots. If the plant is a new one, the brown leaves may be nothing more than the plant adjusting to it’s new home. Most plants experience some sort of shock when transplanted from one place to another. It’s nothing unusual. Just give it a bit of time to adjust and it should do fine. However, if your plant is an established plant and has been doing fine for a long time but suddenly the leaves start to turn brown and fall off – the roots may simply have come loose from the soil or gravel. It’s not unusual for roots to come loose in aquariums, especially if you have fish that love to dig. In this case, simply replant or reposition the plant making sure that the roots are well covered and secure.

Too many plants for the space.

Extraordinary Benefits of a School Garden

Does your child’s school have an active working garden?

Research is repeatedly showing how critical school gardens are to your child’s health and overall educational experience. Not only will your child learn science and math… which is great for his/her brain, but your child will also reap the benefits of fresh air, exercise, and exposure to direct sun light! Not to mention, there will be good fruits and veggies to consume!

Here are 5 extraordinary benefits of having a school garden:

1. Help increase Vitamin D levels. With reduced recess and lack of outdoor play, children’s Vitamin D levels are falling across the board. One of the best and free sources of Vitamin D is… the SUN! And Vitamin D is turning out to be a potent cancer fighter. Actively engaging in the school garden for 20 minutes is a great way for your child to get that much needed Vitamin D!

2. Increase the new-age Vitamin “G” – green space. In a recent published article for the National Recreation and Park Association, Dr. Francis Kuo of the University of Illinois, Urbana-Champaign, “found that children with ADHD who went for 20-minute walks in park settings performed as well on concentration tests afterwards as children who received common ADHD medications.” Outstanding!

3. Seasonal, local, organic and whole (SLOW). There is no denying the research behind SLOW foods and their superior nutritional benefits over packaged, processed, cooked foods. “Studies have shown that fresh produce loses nutrients quickly during transportation. During the trip from harvest to dinner table, sugars turn to starches, plant cells shrink, and produce loses its vitality.” Eating fresh from the garden preserves more the vital nutrients, which helps build healthy cells in your child’s body.

4. Children like to eat what they grow! There is nothing quite like putting a seed in the ground, watching those first two leaves sprout up and eventually seeing the results of tender love and care of a plant that grows and blooms. Curiosity is an inherent facet of all children… and they are far more likely to be more curious and taste a

Multisynth-based Architecture

Traditional clock generators use a simple integer-N phased-locked loop (PLL)-based architecture. The output clock frequency is a function of the input clock frequency and the PLL divider values as shown in the equation
Equation: fOUT = fIN.N/P.R
Traditional single PLL-based IC solutions are suitable for simple integer clock multiplication of reference inputs or clock generation from crystal inputs. However, many applications require clock generation of multiple non-integer-related frequencies (e.g., 125 MHz Ethernet and 106.25llMHz Fibre Channel). Traditional solutions require that the crystal frequency be changed to support each unique frequency plan. This forces the designer to use one or more custom crystals and multiple clock generator ICs to generate the required set of frequencies, increasing the cost, complexity and power consumption of the overall solution.

New Any-Rate Clock Multiplier Architecture Simplifies Design
Recent advances in mixed-signal analog design have made it possible to provide any-rate frequency synthesis from a single device. Silicon Labs newest clock architecture leverages a fractional-N PLL used in concert with a low-jitter fractional divider termed MultiSynth to produce any-rate frequency synthesis on multiple output clocks. The flagship of this new product family is the Si5338 Any-Rate, Any-Output Quad Clock Generator. This technology dramatically simplifies timing architectures by integrating the frequency synthesis capability of four PLLs in a single device, greatly reducing size and power requirements compared to traditional solutions.

MultiSynth Technology
The Si5338s low phase noise, high-frequency VCO supplies a high-frequency output clock to the MultiSynth block on each of the four independent output paths. The first stage of the MultiSynth architecture is a fractional-N divider, which switches seamlessly between the two closest integer divider values to produce the exact output clock frequency with 0 ppm error. To eliminate phase error generated by this process, the MultiSynth calculates the relative phase difference between the clock produced by the fractional-N divider and the desired output clock and dynamically adjusts the phase to match the ideal clock waveform. This novel approach makes it possible to generate any output clock frequency without sacrificing jitter performance. Based on this architecture, each output clock can

TCPIP architecture model

Unlike the ISO/OSI reference model, TCP/IP architecture is only divided into 4 layers. The exchange of information between the layers is again exactly defined and again, each service uses the services of a lower level and provides its services to a higher layer.
Network interface(Data link) layer
Network layer
Transport layer
Application layer Network interface layer
The lowest layer of the TCP/IP model. Its task is to provide access to the transmission physical medium and it differs according to the implementation of the medium.
Network layer
The network layer provides network addressing, routing and datagram transmission. Used protocols that will be of interest further regarding DHCP are IP and ARP.
IP protocol
It is the basic protocol of the network layer and in general the internet as a whole. It sends datagrams, which are independent units that contain information about the destination, source and the sequence number of the datagram. The sequence number is used for message reconstruction, since the delivery order of the datagrams might not be the same as their order in the message and delivery reliability isnt guaranteed at all. IP protocol versions:
IP v4 32 bit addresses. Provides approximately 4 billion unique addresses which arent sufficient at present times.
IP v6 128 bit addresses. The transition to v6 will bring (is bringing) higher security, QoS, packet segmentation and many more IP addresses. (the transition from IP v4 to IP v6 must be supported by the system provider) ARP protocol
The ARP abbreviation stands for Address Resolution Protocol. This protocol is used to find the physical address (MAC) based on a known IP address. If required ARP sends information concerning the wanted address to all the stations in the network Broadcast. The stations consequently answer with a message containing their MAC. If the wanted device/station is outside the node/segment, the appropriate router will answer instead of it.
Transport layer
The transport layer is implemented only in terminal devices and it adjusts the behavior of the network according to the requirements of the device/application.

Application layer