Selasa, 24 Februari 2015

1.5.1.1 Class Activity - Draw Your Concept of the Internet Now Instructions



Reflection


1. After completing Chapter 1, are you more aware of the devices, cabling, and physical components of a small-to-medium size network? Explain your answer.Ya, Saya belajar apa LAN dan WAN, apa End Device dan perangkat perantara, cara kerja router dan bagaimana paket data bekerja

Senin, 23 Februari 2015

1.4.4.3 Lab - Researching IT and Networking Job Opportunities


Part 1: Research Job Opportunities
Type the word Network in the Job title box. Notice that the website offers context sensitive suggestions based on the keywords provided. Either click on, or finish typing the words, "Network Administrator" and click the SEARCH button. Now focus your search by adding terms to the keywords field box. Try terms like Cisco CCNA, CCNP, CCNA Security, CCNA Voice, etc.Finally, refine your search by adding in different geographical locations.


d. Now try refining your search by adding in different geographical locations. Did you find jobs in the locations you entered?Ya,saya menemukan 41 Job di jakarta 
Part 2: Reflect on Research
a. What job titles did you search for?
Network Administrator
b. What skills or certifications were required?Banyak sertifikasi dan perguruan tinggi yang berbeda pendidikan diperlukan untuk berbagai hal, serta pengalaman, semangat, komitmen, keterampilan kerja sama tim, dll
c. Did you find any jobs that you previously did not know existed? If so, what were they?
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d. Did you find any jobs that you are interested in? If so, which ones and what skills or certifications do they require?
Untuk saat ini belum ada yang membuat saya tertarik


Minggu, 22 Februari 2015

1.3.1.3 Lab - Mapping the Internet

Part 1: Test Network Connectivity Using Ping
Step 1: Determine whether the remote server is reachable.
All these pings were run from a computer located in the U.S. What happens to the average ping time in milliseconds when data is traveling within the same continent (North America) as compared to data from North America traveling to different continents?
Akan membutuhkan lebih sedikit waktu untuk reply. 
What is interesting about the pings that were sent to the European website?Sepertinya dibutuhkan waktu yang lebih lama untuk menerima ping dari Eropa yang menyebabkannya time out.
Part 2: Trace a Route to a Remote Server Using Tracert
Step 1: Determine what route across the Internet traffic takes to the remote server. 

What happens at hop 7? Is level3.net the same ISP as hops 2-6, or a different ISP? Use the whois tool to answer this question.
Dalam hop 7, terjadi perubahan ip address dari ip address sebelumnya karena menemukan ISP baru untuk hop. Mereka berbeda karena hop 2-6 ISPnya adalah verizon-gni.net dan ALTER.NET sedangkan hop 7 ISPnya adalah NewYork2.level13.net
What happens in hop 10 to the amount of time it takes for a packet to travel between Washington D.C. and Paris, as compared with the earlier hops 1-9?
Ini karena untuk hop ke ISP paris dibutuhkan waktu lebih lama
What happens in hop 18? Do a whois lookup on 168.209.201.74 using the whois tool. Who owns this network?
Pada hop 18, untuk sampai afrinic.net harus lewat POP Router, dan POP router ini bukan milik ISP siapapun
What happens in hop 7?
Terjadi perubahan ISP dari sebelumnya
Part 3: Trace a Route to a Remote Server Using Web-Based and SoftwareTools
Step 1: Use a web-based traceroute tool.

How is the traceroute different when going to www.cisco.com from the command prompt (see Part 2) rather than from the online website? (Your results may vary depending upon where you are located geographically, and which ISP is providing connectivity to your school.)Hasil cmd berbeda dari situs online, karena ping lewat ISP untuk sampai ke cisco.com sementara online website mengambil rute yang berbeda untuk website cisco.
Compare the tracert from Part 1 that goes to Africa with the tracert that goes to Africa from the web interface. What difference do you notice?
Ping ke afrika menggunakan situs online lebih cepat dibandingkan dengan menggunakan cmd mungkin menggunakan situs online menciptakan jarak yang lebih pendek untuk ping
Some of the traceroutes have the abbreviation asymm in them. Any guesses as to what this means? What is its significance?
"asymm" berarti jalan menuju hop dan kembali akan berbeda (asimetris). Hal ini biasanya terjadi ketika ada beberapa link dalam satu arah macet atau arsitektur jaringan mendorong jalan yang berbeda untuk arah yang berbeda. Jumlah setelah asymm menunjukkan kelas asimetri (yaitu berapa banyak hop yang berbeda).
 Part 5: Compare Traceroute Results
Step 1: List the path to www.cisco.com using tracert.

Step 2: List the path to www.cisco.com using the web-based tool on subnetonline.com.

Step 3: List the path to www.cisco.com using VisualRoute Lite edition.
Did all the traceroute utilities use the same paths to www.cisco.com? Explain.
Tidak, karena setiap jalan adalah unik dan dapat mengambil rute yang berbeda untuk mencapai tujuan.
Reflection
Having now viewed traceroute through three different tools (tracert, web interface, and VisualRoute), are there any insights that using VisualRoute provided that the other two tools did not?
Saya percaya menggunakan VisualRoute adalah cara yang baik untuk melihat jalan yang kita ambil untuk mencapai sebuah website karena mengelompokkannya informasi yang lebih baik dengan memisahkan mereka ke dalam baris. Ini juga memiliki jalur visual yang hebat yang menunjukkan pengguna bagaimana mereka sampai ke situs web

1.2.4.4 Packet Tracer - Representing the Network Instructions

Part 1: Overview of the Packet Tracer Program

Step 1: Access the Packet Tracer Help pages, tutorial videos, and online resources
c. Find the “Configuring Devices Using the Desktop Tab” tutorial. Watch the first part to answer the following question: What information can you configure in the IP Configuration window?
Disitu saya dapat mensetting ip address (dengan cara statik atau dhcp), subnet mask, gateway dan DNS server.

Step 2: Toggle between Realtime and Simulation modes. 

f. In the network topology on the left, click one of the envelopes on an intermediate device and investigate what is inside. Over the course of your CCNA studies, you will learn the meaning of most everything inside these envelopes. For now, see if you can answer the following questions:
- Under the OSI Model tab, how many In Layers and Out Layers have information?

Ada 3 in layer yang mendapatkan informasi dan out layer tidak ada mendapat kan informasi
- Under the Inbound PDU Details and Outbound PDU Details tabs, what are the headings of the major sections?
ICMP, Ethernet II and IP

- Click back and forth between the Inbound PDU Details and Outbound PDU Details tabs. Do you see information changing? If so, what?
Saya tidak melihat informasi berubah karena semua paket hanya masuk. Tidak ada rincian paket yang keluar jalur PDU.

Part 2: Exploring LANs, WANs, and Internets
Step 1: Identify common components of a network as represented in Packet Tracer.

b. List the intermediate device categories.
switches,modem,hubs,routers,servers,wireless access points, and security devices (seperti firewalls).
c. Without entering into the Internet cloud or Intranet cloud, how many icons in the topology represent endpoint devices (only one connection leading to them)?
15 end devices 
d. Without counting the two clouds, how many icons in the topology represent intermediate devices (multiple connections leading to them)?
13 perangkat perantara
e. How many intermediate devices are routers? Note: The Linksys device is a router. ada 3 perangkat perantara adalah router

f. How many end devices are not desktop computers?ada 7 end devices bukan komputer desktop

g. How many different types of media connections are used in this network topology?
4 jenis media koneksi yang digunakan dalam topologi jaringan

h. Why isn’t there a connection icon for wireless in the Connections category? Tidak ada ikon koneksi wireless untuk dalam kategori koneksi karena perangkat wireless secara otomatis akan terhubung.
 Step 2: Explain the purpose of the devices.

a. In Packet Tracer, the Server-PT device can act as a server. The desktop and laptop PCs cannot act as a server. Is that true in the real world?Based on your studies so far, explain the client-server model.
Itu tidak benar, Sebuah komputer desktop dapat menjadi server, tetapi harus memiliki software khusus diinstal di atasnya untuk menjadi server. 
b. List at least two functions of intermediary devices.
Sebagai penguhubung anatara jaringan satu dengan jaringan yang lain dan sebagai mengatur jalur paket data

c. List at least two criteria for choosing a network media type.
jenis jaringan dan biaya



Step 3: Compare and contrast LANs and WANs.
a. Explain the difference between a LAN and a WAN. Give examples of each.
LAN adalah jaringan komputer yang jaringannya hanya mencakup wilayah kecil; contoh jaringan komputer kampus, gedung, kantor, dalam rumah, sekolah atau yang lebih kecil.
 
WAN adalah merupakan jaringan komputer yang mencakup area yang besar sebagai contoh yaitu jaringan komputer antar wilayah, kota atau bahkan negara, atau dapat didefinisikan juga sebagai jaringan komputer yang membutuhkan router dan saluran komunikasi publik.

b. In the Packet Tracer network, how many WANs do you see?
ada 4 jaringan WAN

c. How many LANs do you see?
ada 3 jaringan LAN

d. The Internet in this Packet Tracer network is overly simplified and does not represent the structure and form of the real Internet. Briefly describe the Internet.
internet adalah sistem global dari seluruh jaringan komputer yang saling terhubung dan terdiri dari milyaran komputer yang ada di seluruh dunia dengan melibatkan berbagai jenis komputer serta topology jaringan yang berbeda

e. What are some of the common ways a home user connects to the Internet? Biasanya menggunakan telepon rumah dengan berlangganan ISP atau menggunakan modem usb
f. What are some common methods that businesses use to connect to the Internet in your area?  Yang umum nya dengan cara berlangganan isp



 Challenge
 · Add an end device to the topology and connect it to one of the LANs with a media connection. What else does this device need to send data to other end users? Can you provide the information? Is there a way to verify that you correctly connected the device?
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· Add a new intermediary device to one of the networks and connect it to one of the LANs or WANs with a media connection. What else does this device need to serve as an intermediary to other devices in the network?
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· Open a new instance of Packet Tracer. Create a new network with at least two LANs connected by a WAN. Connect all the devices. Investigate the original Packet Tracer activity to see what else you might need to do to make your new network functional. Record your thoughts and save your Packet Tracer file. You may want to revisit your network later after you have mastered a few more skills.
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