Sharing Materi Kuliah

Lab 9.2.7




Step 1 : Build the network and configure the hosts


Step 2 : Record the baseline IP address information for computers and intergrated router


a. IP address : 192.168.1.2
   Subnet mask : 255.255.255.0
   Default gateway : 192.168.1.1
   DNS : 
   DHCP :
   
b. Internal IP address : 192.168.1.3
    Subnet mask : 255.255.255.0
    Enabled.
    External (internet) IP address : 10.1.1.5
    Subnet mask : 255.0.0.0
    Default gateway IP address : 10.1.1.1
    DNS server :

Lab 8.4.2

1. a small office uses a wireless ISR to connect to a cable modem for internet access. The network administrator receives a call tahat one office computer cannot access external website. The first troubleshooting step that the network administrator performs is to ping the ISR. While troubleshooting technique does this represent?

1. What should a network administrator do first after receiving a call from a user who cannot access the company web server?
• Ask the user what URL has been typed and what error message displays.

2. A customer called the cable company to report that the Internet connection is unstable. After trying several configuration changes, the technician decided to send the customer a new cable modem to try. What troubleshooting technique does this represent?
• substitution

3. Only one workstation on a particular network cannot reach the Internet. What is the first troubleshooting step if the divide-and-conquer method is being used?
• Check the workstation TCP/IP configuration.

4. Which two troubleshooting techniques are suitable for both home networks and large corporate networks? (Choose two.)
• documenting the troubleshooting process
• keeping a record of system upgrades and software versions

5. Identify two physical-layer network problems. (Choose two.)
• hardware failure
• loose cable connections

6. Which ipconfig command requests IP configuration from a DHCP server?
• ipconfig /renew

7. What command is used to determine the location of delay for a packet traversing the Internet?
• tracert

8. What command is used to determine if a DNS server is providing name resolution?
• nslookup

9. Which troubleshooting method begins by examining cable connections and wiring issues?
• bottom-up

10. A technician suspects that a Linksys integrated router is the source of a network problem. While troubleshooting, the technician notices a blinking green activity LED on some of the ports. What does this indicate?
• The ports are operational and are receiving traffic.

11. A PC is plugged into a switch and is unable to connect to the network. The UTP cable is suspected. What could be the problem?
• A crossover cable is being used.

12. Refer to the graphic. What configuration is incorrect in the network shown?

13. Which three settings must match on the client and access point for a wireless connection to occur? (Choose three.)
• SSID
• authentication
• encryption key

14. A technician is troubleshooting a security breach on a new wireless access point. Which three configuration settings make it easy for hackers to gain access? (Choose three.)
• configuring NAT
• broadcasting the SSID
• using open authentication
• using the default internal IP address

15. Refer to the graphic. The wireless host cannot access the Internet, but the wired host can. What is the problem?

16. Refer to the graphic. What configuration is incorrect in the network shown?

17. When acting as a DHCP server, what three types of information can an ISR provide to a client? (Choose three.)
• default gateway
• dynamic IP address
• DNS server address

18. What two items could be checked to verify connectivity between the router and the ISP? (Choose two.)
• router status page
• connectivity status as indicated by LEDs

19. A technician is unsuccessful in establishing a console session between a PC and a Linksys integrated router. Both devices have power, and a cable is connected between them. Which two troubleshooting steps could help to diagnose this problem? (Choose two.)
• Ensure the correct cable is used.
• Ensure the link status LED on the integrated router is lit.

20. Network baselines should be performed in which two situations? (Choose two.)
• after the network is installed and running optimally
• after major changes are implemented on the network

21. Typically, help desk personnel assist end users in which two tasks? (Choose two.)
• identifying when the problem occurred
• implementing the solution to the problem

22. How does remote-access software help in the troubleshooting process?
• Diagnostics can be run without a technician being present at the site.

23. Which two items should be added to the documentation following a troubleshooting event? (Choose two.)
• final resolution
• results of successful and unsuccessful troubleshooting steps

1. Identify three techniques used in social engineering. (Choose three.)
• vishing
• phishing
• pretexting

2. During a pretexting event, how is a target typically contacted?
• by phone

3. While surfing the Internet, a user notices a box claiming a prize has been won. The user opens the box unaware that a program is being installed. An intruder now accesses the computer and retrieves personal information. What type of attack occurred?
• Trojan horse

4. What is a major characteristic of a Worm?
• exploits vulnerabilities with the intent of propagating itself across a network

5. A flood of packets with invalid source-IP addresses requests a connection on the network. The server busily tries to respond, resulting in valid requests being ignored. What type of attack occurred?
• SYN flooding

6. What type of advertising is typically annoying and associated with a specific website that is being visited?
• popups

7. What is a widely distributed approach to marketing on the Internet that advertises to as many individual users as possible via IM or e-mail?
• spam

8. What part of the security policy states what applications and usages are permitted or denied?
• acceptable use

9. Which statement is true regarding anti-virus software?
• Only after a virus is known can an anti-virus update be created for it.

10. Which two statements are true concerning anti-spam software? (Choose two.)
• When anti-spam software is loaded, legitimate e-mail may be classified as spam by mistake.
• Even with anti-spam software installed, users should be careful when opening e-mail attachments.

11. What term is used to describe a dedicated hardware device that provides firewall services?
• appliance-based

12. Which acronym refers to an area of the network that is accessible by both internal, or trusted, as well as external, or untrusted, host devices?
• DMZ

13. Which statement is true about port forwarding within a Linksys integrated router?
• Only external traffic that is destined for specific internal ports is permitted. All other traffic is denied.

14. To which part of the network does the wireless access point part of a Linksys integrated router connect?
• internal

15. Refer to the graphic. What is the purpose of the Internet Filter option of Filter IDENT (Port 113. on the Linksys integrated router?

16. What statement is true about security configuration on a Linksys integrated router?
• Internet access can be denied for specific days and times.

17. What environment would be best suited for a two-firewall network design?
• a large corporate environment

18. What is one function that is provided by a vulnerability analysis tool?
• It identifies missing security updates on a computer.

19. Many best practices exist for wired and wireless network security. The list below has one item that is not a best practice. Identify the recommendation that is not a best practice for wired and wireless security.
• Disable the wireless network when a vulnerability analysis is being performed.

20. What best practice relates to wireless access point security?
• a change of the default IP address

21. Refer to the graphic. In the Linksys Security menu, what does the SPI Firewall Protection option Enabled provide?

Lab 7.2.5


Step 1 : Verify Connectivity Between the Computer and the Multi-function Device.


d. Perintah yang digunakan untuk melakukan ping ke perangkat multi-fungsi :
    ping 10.1.1.5


Step 2 : Log in To The Multi-function Device and Configure The Wireless Network


e. SSID yang digunakan : informatika 2.


f. 2 options pada Radio Band : standar dan auto.


Step 3 : Reflection


a. Berapa banyak jaringan wireless yang bisa dikonfigurasi dalam satu kelas ?Berapa batasnya? 
Tidak terbatas, karena jaringan wireless bisa diakses oleh siapa saja, dan bisa dikonfigurasi sesuai dengan keinginan.




Lab 7.2.6


Step 1 : Install the Wireless NIC Wireless


b. Wireless NIC diproduksi oleh : intel.


c. Langkah install wireless NIC Driver : 
   - Klik Start, Control Panel, Performance & Maintenance, System, Hardware, Device Manager, Network Adapter, Properties.
   - Turn off komputer, cabut semua kabel dari komputer.
   - Masukkan wireless NIC card dengan hati - hati.
   - Kemudian booting kembali komputernya.
   - Found new hardware akan running secara otomatis, lalu masuk ke Control Panel dan pilih Add Hardware.




Step 3 : Attach To The Wireless Network


b. SSID yang mana yang digunakan : linksys.


d. Sinyal yang paling kuat untuk Wireless NIC : mixed.


e. Ya, karena banyak jaringan wireless yang tersedia.


g. Nama host wireless yang lainnya : elka.


h. Lebih baik menggunakan wireless NIC.


Step 4 : Determine the NIC Driver Version


b. Linksys




Step 5 : Determine If the NIC driver is the most current


a. Ya.


b. Intel.




Step 6 : Verify Connectivity


e. IP address : 192.168.1.1




Step 7 : Reflection


a. Setting nya sama.


b. Ya.




Lab 7.3.5


Step 1 : Plan the security for your home network


a. 6 security best practice :
    1. Turn on WPA
    2. Change default administrator (username dan password)
    3. Change the default SSID
    4. Enable MAC address filtering
    5. Disable SSID Broadcast
    6. Enable firewalls on each computer and router


b. 6 resiko keamanan untuk setiap sistem :
    1. Interception