CCNA Discovery 2.5

1. vIn what two ways does SDM differ from the IOS CLI? (Choose two.) 
• SDM is used for in-band management only. The IOS CLI can be used for in-band and out-of-band management.
• SDM is accessed through a Telnet application. The IOS CLI is accessed through a web browser. 
• SDM is available for all router platforms. The IOS CLI is available for a limited number of Cisco devices. 
• SDM utilizes GUI buttons and text boxes. The IOS CLI requires the use of text-based commands.
• SDM is used for advanced configuration tasks. The IOS CLI is preferred for initial basic device configuration. 

2. Which mode will a configured router display at login? 
• global configuration mode 
• setup mode 
• ROM monitor mode 
• user EXEC mode

3. Refer to the exhibit. Which password or passwords will be encrypted as a result of the configuration that is shown? 
• virtual terminal only 
• enable mode only 
• console and virtual terminal only 
• enable mode and virtual terminal 
• only the service password 
• all configured passwords


4.Refer to the exhibit. Which three sets of commands are required to enable administrators to connect to the Switch1 console over Telnet for configuration and management? (Choose three.) 
• Switch1(config)# interface fa0/1 
Switch1(config-if)# ip address 192.168.2.64 255.255.255.192 
• Switch1(config)# interface fa0/1 
Switch1(config-if)# ip address 192.168.2.66 255.255.255.192 
• Switch1(config)# interface vlan 1 
Switch1(config-if)# ip address 192.168.2.126 255.255.255.192 
Switch1(config-if)# no shutdown 
• Switch1(config)# line vty 0 4 
Switch1(config-line)# enable password cisco 
Switch1(config-line)# login 
• Switch1(config)# line vty 0 15 
Switch1(config-line)# password cisco 
Switch1(config-line)# login 
• Switch1(config)# ip default-gateway 192.168.2.65


5. How does the SYST LED on the catalyst 2960 switch indicate a POST failure?
• blinks rapidly amber
• blinks rapidly green
• steady amber
• steady green 

6.  Refer to the exhibit. A company always uses the last valid IP address in a subnetwork as the IP address of the router LAN interface. A network administrator is using a laptop to configure switch X with a default gateway. Assuming that the switch IP address is 192.168.5.147/24, what command will the administrator use to assign a default gateway to the switch? 
• X(config)# ip default-gateway 192.168.5.254
• X(config)# ip gateway 192.168.5.1 
• X(config)# ip route 0.0.0.0 0.0.0.0 192.168.5.1 
• X(config)# ip default-route 192.168.5.1 
• X(config)# ip route 192.168.5.254 255.255.255.0 fastethernet 0/0

7. A technician has made changes to the configuration of a router. What command will allow the technician to view the current configuration before he saves the changes? 
• router# show running-config
• router# show startup-config 
• router# show flash 
• router# show version 

8. Passwords can be used to restrict access to all or parts of the Cisco IOS. Select the modes and interfaces that can be protected with passwords. (Choose three.) 
• VTY interface 
• console interface
• Ethernet interface 
• secret EXEC mode 
• privileged EXEC mode
• router configuration mode 

9. To save time, IOS commands may be partially entered and then completed by typing which key or key combination? 
• Tab
• Ctrl-P 
• Ctrl-N 
• Up Arrow 
• Right Arrow 
• Down Arrow 

10. What is the correct command sequence to configure a router host name to 'LAB_A'? 
• Router> enable 
Router# configure terminal 
Router(config)# hostname LAB_A
• Router> enable 
Router# hostname LAB_A 
• Router> enable 
Router# configure router 
Router(config)# hostname LAB_A 
• Router> enable 
Router(config)# host name LAB_A 

11. Refer to the exhibit. From the router console, an administrator is unable to ping a Catalyst switch that is located in another building. What can the administrator do from her location to check the IP configuration of the attached switch? 
• Open an SDM session with the switch from her desktop. 
• Telnet to the switch from the router console. 
• Use the show cdp neighbors detail command from the router console.
• The administrator must go to the switch location and make a console connection to check these settings. 

12. Which two options must be selected in SDM Express to enable a router serial interface to obtain an IP address automatically? (Choose two.) 
• Easy IP (IP negotiated) 
• IP unnumbered 
• No IP address 
• HDLC encapsulation 
• Frame Relay encapsulation 
• PPP encapsulation 

13. What three settings can be made in the SDM Express basic configuration screen? (Choose three.) 
• host name 
• DHCP options 
• domain name 
• interface IP addresses 
• enable secret password 
• DNS server IP addresses 

14. Which tasks can be accomplished by using the command history feature? (Choose two.) 
• View a list of commands entered in a previous session. 
• Recall up to 15 command lines by default. 
• Set the command history buffer size. 
• Recall previously entered commands.
• Save command lines in a log file for future reference. 

15. What option within Cisco SDM Express must be configured to allow hosts that receive IP address settings from the router to resolve names on the network or Internet? 
• host name
• domain name 
• DHCP address pool 
• DNS server IP address 

16. Which three encapsulation types can be set on a serial interface by an administrator who is using SDM Express? (Choose three.) 
• ATM 
• CHAP 
• Frame Relay 
• HDLC
• PAP 
• PPP

17. Which command will display routing table information about all known networks and subnetworks? 
• Router# show ip interfaces 
• Router# show ip connections 
• Router# show ip route
• Router# show ip networks 

18. A network administrator needs to configure a router. Which of the following connection methods requires network functionality to be accessible? 
• console 
• AUX 
• Telnet
• modem 

19. Which three pieces of information about a neighbor device can be obtained by the show cdp neighbors command? (Choose three.) 
• platform
• routing protocol 
• connected interface of neighbor device 
• device ID
• IP addresses of all interfaces 
• enable mode password 

20.Which function is a unique responsibility of the DCE devices shown in the exhibit? 
• transmission of data 
• reception of data 
• clocking for the synchronous link
• noise cancellation in transmitted data 

21. Which of the following are functions of NVRAM? (Choose two.) 
• stores the routing table 
• retains contents when power is removed 
• stores the startup configuration file 
• contains the running configuration file 
• stores the ARP table 

22. Refer to the exhibit. Which series of commands will enable users who are attached to Router1 to access the remote server? 
• Router1(config)# interface S0/0/0 
Router1(config-if)# ip address 64.100.0.129 255.255.255.252 
Router1(config-if)# clock rate 64000 
Router1(config-if)# no shutdown 
• Router1(config)# interface S0/0/0 
Router1(config-if)# ip address 64.100.0.125 255.255.255.252 
Router1(config-if)# no shutdown 
• Router1(config)# interface S0/0/0 
Router1(config-if)# ip address 64.100.0.125 255.255.255.252 
Router1(config-if)# clock rate 64000 
Router1(config-if)# no shutdown 
• Router1(config)# interface S0/0/0 
Router1(config-if)# ip address 64.100.0.129 255.255.255.252 
Router1(config-if)# no shutdown

23. A network technician is attempting to add an older workstation to a Cisco switched LAN. The technician has manually configured the workstation to full-duplex mode in order to enhance the network performance of the workstation. However, when the device is attached to the network, performance degrades and excess collision are detected. What is the cause of this problem? 
• The host is configured in a different subnet from the subnet of the switch. 
• There is a duplex mismatch between the workstation and switch port.
• The switch port is running at a different speed from the speed of the workstation NIC. 
• The host has been configured with a default gateway that is different from that of the switch. 

24. Which of the following statements are true regarding the user EXEC mode? (Choose two.) 
• All router commands are available. 
• Global configuration mode can be accessed by entering the enable command.
• A password can be entered to allow access to other modes. 
• Interfaces and routing protocols can be configured. 
• Only some aspects of the router configuration can be viewed.

25. Which command turns on a router interface? 
• Router(config-if)# enable 
• Router(config-if)# no down 
• Router(config-if)# s0 active 
• Router(config-if)# interface up 
• Router(config-if)# no shutdown

CCNA Discovery 2.4

1. In an 8 bit binary number, what is the total number of combinations of the eight bits?

• 128

• 254

• 255

• 256

• 512

• 1024

2. Convert the decimal number 231 into its binary equivalent. Select the correct answer from the list below.

• 11110010

• 11011011

• 11110110

• 11100111

• 11100101

• 11101110

3. How many usable hosts are available given a Class C IP address with the default subnet mask?

• 254

• 255

• 256

• 510

• 511

• 512

4. Which statement describes NAT overload or PAT?

• Each internal address is dynamically translated to an individual external IP address.

• A single internal address is always translated to the same unique external IP address.

• Many internal addresses can be translated to a single IP address using different port assignments.

• Many internal addresses are statically assigned a single IP address and port to use for communications.

5. Which IPv4 class of addresses provides the most networks?

• Class A

• Class B

• Class C

• Class D

• Class E

6. Which statement accurately describes public IP addresses?

• Public addresses cannot be used within a private network.

• Public IP addresses must be unique across the entire Internet.

• Public addresses can be duplicated only within a local network.

• Public IP addresses are only required to be unique within the local network.

• Network administrators are free to select any public addresses to use for network devices that access the Internet.

7. Which two statements describe classful IP addresses? (Choose two.)

• It is possible to determine which class an address belongs to by reading the first bit.

• The number of bits used to identify the hosts is fixed by the class of the network.

• Only Class A addresses can be represented by high-order bits 100.

• Up to 24 bits can make up the host portion of a Class C address.

• Up to 24 bits can be used to identify unique networks.

• Three of the five classes of addresses are reserved for multicasts and experimental use.

8. Company XYZ uses a network address of 192.168.4.0. It uses the mask of 255.255.255.224 to create subnets. What is the maximum number of usable hosts in each subnet?

• 6

• 14

• 30

• 62

9. What is the network broadcast address for a Class C address of 192.168.32.0 with the default subnet mask?

• 192.168.0.0

• 192.168.0.255

• 192.168.32.0

• 192.168.32.254

• 192.168.32.255

10. Refer to the exhibit. Host A is connected to the LAN, but it cannot get access to any resources on the Internet. The configuration of the host is shown in the exhibit. What could be the cause of the problem?

• The host subnet mask is incorrect.

• The default gateway is a network address.

• The default gateway is a broadcast address.

• The default gateway is on a different subnet from the host.

11. IPv6 increases the IP address size from 32 bits to how many bits?

• 64

• 96

• 128

• 192

• 256

• 512

12. What is the range of the first octet in a Class B address?

• 127 to 191

• 127 to 192

• 128 to 191

• 128 to 192

13. Which IPv4 class provides the highest number of host addresses per network?

• Class A

• Class B

• Class C

• Class D

• Class E

14.refer to the exhibit. Which range of IP addresses would allow hosts that are connected to the Router1 Fa0/0 interface to access outside networks?

• 192.168.1.0 through 192.168.1.95

• 192.168.1.66 through 192.168.1.94

• 192.168.1.66 through 192.168.1.96

• 192.168.1.0 through 192.168.1.127

• 192.168.1.66 through 192.168.1.128

15. Which option shows the proper notation for an IPv6 address?

• 2001,0db8,3c55,0015,abcd,ff13

• 2001-0db8-3c55-0015-abcd-ff13

• 2001.0db8.3c55.0015.abcd.ff13

• 2001:0db8:3c55:0015::abcd:ff13

16. What are two reasons that NAT was developed? (Choose two.)

• to preserve registered public IP addresses

• to allow users on the public Internet to access local networks

• to provide a method for privately addressed LANs to participate in the Internet

• to make routing protocols operate more efficiently

• to allow private addresses to be routed on the public Internet

• to reduce overhead and CPU usage on gateway routers

17. What must happen for a privately addressed host on an inside local network to be able to communicate with an outside destination host on the Internet?

• The host IP address must be translated to an outside private address.

• The host IP address must be translated to an inside local address.

• The host IP address must be translated to an outside local address.

• The host IP address must be translated to an inside global address.

18. Which port numbers are used by PAT to create unique global addresses?

• 255 and below

• 1024 and below

• 1025 and above

• 64,000 and above

19. Static NAT works by mapping a specific inside local IP address to what other specific address type?

• inside global

• outside local

• outside global

• private IP address

20. What are three advantages of NAT implementations? (Choose three.)

• improved security

• improved router performance

• decreased processor load

• improved scalability

• universal application compatibility

• sharing few public IP addresses with many hosts

Labskill2 - Lab 3.2.4.2 Evaluating a Cabling Upgrade Plan

Lab 3.2.4.2 Evaluating a Cabling Upgrade  Plan

Objectives

• Examine the existing floor plan of a customer.
• Propose a cable upgrade plan to accommodate extra floor space.

Background / Preparation

A medium sized company has existing space on the second floor of an office tower and has  just acquired the rest of the second floor. They have  asked you to examine their existing floor plan and assist the the placement of a new IDF, placement of cables to support all of the new office space, and to help determine  if any new devices are required. This lab can be done individually or in groups. The following resources are required:

• Existing Floor Plan (provided)

Step 1: Examine the existing floor plan

a.  From the information provided on the existing floor plan, label the following items:

1.    POP –Point of Presence

2.    MDF – Main Distribution Facility

3.    IDF – Intermediate Distribution Facility

4.    vertical/Backbone Cabling

5.    Horizontal Cabling

b.     What type of cabling could be used for the vertical/back bone cabling? Explain your answer

Jawab:

Kabel yang digunakan ialah vertical backbone cable, alasannya karena jaringan yang akan dibangun terletak pada lantai dua dan jika dianalogikan posisi masing masing device kerja atau bagian kerja akan bersimpangan. Oleh karena itu kabel yang digunakan ialah vertical backbone cable dangan sambungan vertical patch panel.

Step 2 :Evaluate plan for new floor space.

Any Company  has just  merged  with a small web design group and has acquired the remaining space on the second floor  to accommodate the web design tea. This  new space is represented on the diagram as the floor  space highlighted on the right side of the floor  plan.  It has been decided to add a second IDF to  support the work stations in the new area.

a.    Suggest a possible  location for the new IDF . What room / location did you choose and explain why you think it is suitable?

Jawab:

Ruangan / lokasi yang cocok untuk memasang IDF baru ialah pada telecommunication room  karena IDF sebagai fasilitas pendistribusi merupakan perangkat yang harus tersusun dengan perangkat server.

b.    What type of cable would you suggest for the vertical cabling required to connect the new IDF to the existing MDF? Explain your reasons

Jawab:

Jenis cable yang digunakan untuk menghubungkan IDF dan MDF adalah Horizontal Cabling, alasannya IDF dan MDF dihubungkan untuk langsung terkoneksi ke area kerja (work area) sehingga harus menggunakan cabel horizontal.

c.    The new space contains mostly offices.  Assume that each office will be provisioned with 2 data drops. Also plan for 2 drops  in the auditorium to support Internet access for presentations and training sessions. How many additional data drops need to be ordered?

Jawab: dibutuhkan dua data drops lagi.

d.    You have been asked to determine the number of  new 24 port switches required for the new IDF. Remember to plan on approximately 25% growth. How many new switches will Company ABC need to purchase?

Jawab:

banyaknya switch yang dibutuhkan dengan perkembangan perusahaan yang dianalisa 25% adalah 60 buah switch dengan perhitungan. Masing – masing lantai terdiri dari 24 switch dan perlutambahan untuk perkembangan sebanyak 6 buah = 24 x 2 = 48 + 12 = 60 buah switch

e.    How many horizontal cables will terminate on patch panels in the new IDF?

Jawab:

Sebanyak 32  buah kabel horizontal, termasuk pada telecommunications room.

Step3: Examine the floor space and wiring plan.

a.    What equipment other than switches would you expect to find in the new IDF?

Jawab : Horizontal cable, Switch,hub

b.    What equipment other than switches would you expect to find in the MDF?

Jawab : Vertical cable,Router.

c.    Using existing cable runs, could you use UTP to connect the devices  in room 2.20 or 2 .30 directly into a switch in the MDF?

Jawab : Ya bisa dapat langsung digunakan.

Step 4 . Reflection

a.    Is  it better to have an IDF in this floor space or should the company run the horizontal cables for each device directly back to the existing MDF?

Jawab:

Lebih baik menggukan IDF dengan koneksi kabel horizontal untuk terhubung sebagai mediator untuk distribusi.

b.    How many cables will be required from the MDF to the IDF to support the switches? Explain your answer

Jawab : 3 buah kabel, alasannya setelah terkoneksi dengan router, dibutuhkan 3 lagi alat berupa repeater. Maka agar alat itu bisa digunakan dibutuhkan 3 lagi kabel horizontal

Labskill 2 - Lab 1.2.3 Mapping ISP Connectivity Using Traceroute

Lab 1.2.3 Mapping ISP Connectivity Using Traceroute

Objectives

• Run the Windows tracert utility from a local host computer to a website on a different continent.
• Interpret the traceroute output to determine which ISPs the packets passed through on their way from the local host to the destination website. 
• Draw a diagram of the traceroute path, showing the routers and ISP clouds passed through from the local host to the destination website, including IP addresses for each device.

Background / Preparation 

In this activity, you will use the Windows tracert utility to map Internet connectivity between your local ISP and the other ISPs that it uses to provide global Internet access. You will also map connectivity to the following major Regional Internet Registries (RIRs). However, your instructor may choose different destination websites. 

·         AfriNIC (African Network Information Centre) – Africa Region

·         APNIC (Asia Pacific Network Information Centre) – Asia/Pacific Region

·          ARIN (American Registry for Internet Numbers) – North America Region

·         LACNIC (Regional Latin-American and Caribbean IP Address Registry) – Latin America and some Caribbean Islands

·         RIPE NCC (Réseaux IP Européens) – Europe, the Middle East, and Central Asia

This activity can be done individually, in pairs, or in teams. It can be done as an in-class activity or as a homework assignment, depending on whether the classroom computers have access to the Internet.  The following resources are required:

• Host computer with the Windows operating system
• Access to the command prompt
• Internet connection
• Routes Traced worksheet for each destination URL. The worksheet is attached to this lab. Each student completes their own worksheets and gives them to the instructor.
• Global Connectivity Map, which is attached at the end of this lab
•  Access to the PC command prompt

Step 1: Run the tracert utility from a host computer

a.    Verify that the host computer has a connection to the Internet.

b.    Open a Command Prompt window by clicking Start > Run and typing cmd. Alternatively, you may click Start > All programs > Accessories > Command Prompt.

c.    At the prompt, type tracert and your first destination website. The output should look similar to the following:

d.    Save the tracert output in a text file as follows:

1.    Right-click the title bar of the Command Prompt window and choose Edit > Select All.

2.    Right-click the title bar of the Command Prompt window again and choose Edit > Copy.

3.    Open the Windows Notepad program: Start > All Programs > Accessories > Notepad.

4.    To paste the output into Notepad, choose Edit > Paste.

5.    Choose File > Save As and save the Notepad file to your desktop as tracert1.txt.

e.    Run tracert for each destination website and save the output in sequentially numbered files.

f.     Run tracert from a different computer network, for example, from the public library or from a friend’s computer that accesses the Internet using a different ISP (for instance, cable instead of DSL). Save a copy of that output in Notepad and print it out for later reference.

Step 2: Interpret tracert outputs to determine ISP connectivity

Routes traced may go through many hops and a number of different ISPs depending on the size of your ISP and the location of the source and destination hosts. In the example output shown below, the tracert packets travel from the source PC to the local router default gateway to the ISPs Point of Presence (POP) router and then to an Internet Exchange Point (IXP). From there they pass through two Tier 2 ISP routers and then though several Tier 1 ISP routers as they move across the Internet backbone. When they leave the Tier 1 ISPs backbone, they move through another Tier 2 ISP on the way to the destination server at

www.ripe.net.

a. Open the first traceroute output file and answer the following questions. 

1.    What is the IP address of your local POP router? 

Jawab:

IP Address dari local POP Router adalah 192.168.190.6

2.    How many hops did the traceroute packet take on its journey from the host computer to the destination?

Jawab:

Pengambilan paket data selama proses pada tracert ada sebanyak 16 kali

3.    How many different ISPs did the traceroute packet pass through on its journey from the host computer to the destination?

Jawab:

Jumlah tracert melewati isp yang berbeda untuk sampai ketujuan ada sebanyak 5 kali adapun alamat alamat tujuan.

·         if-1-0-0-1980.mcore3.laa-losangeles.as6453.net [66.110.59.18]

·         ix-10-0-0-0.tcore1.lvw-losangeles.as6453.net [216.6.84.49]

·         if-10-0.core3.nto-newyork.as6453.net [216.6.57.66]

·         if-7-0-0.core2.ad1-amsterdam.as6453.net [80.231.81.45]

·         if-4-0.mcore3.njy-newark.as6453.net [216.6.84.2]

4.    List the IP addresses and URLs of all the devices in the traceroute output in the order that they appear on the Routes Traced worksheet. 

5.    In the Network Owner column of the worksheet, identify which ISP owns each router. If the router belongs to your LAN, write “LAN”. The last two parts of the URL indicates the ISP name. For example, a router that has “sprint.net” in its URL belongs to the network of an ISP called Sprint. 

6.    Did the traceroute pass through an unidentified router between two ISPs? This might be an IXP. Run the whois command utility or whois function of a visual traceroute program to identify ownership of that router. Alternatively, go to http://www.arin.net/whois to determine to whom the IP is assigned. 

b. Complete the worksheet using the traceroute output file for each of the other destination URLs.

c. Compare your results from the different traceroute output files. Did your ISP connect to different ISPs to reach different destinations?

Jawab:  

Ya, pada kasus melakukan tracert ke http://whois.arin.net/ui isp nya masing masing protocol yang berbeda salaing terkoneksi untuk mencapai tujuan yaitu hit-nxdomain.opends.com [67.215.65.132]

Dan ISP yang berbeda untuk saling terkoneksi adalah

1.    xe-1-0-0.r21.newthk02.hk.bb.gin.ntt.net [129.250.3.206]

2.    p64-4-1-1.r21.tokyjp01.jp.bb.gin.ntt.net [129.250.3.1]

3.    as-0.r21.Isanca03.us.bb.gin.ntt.net [192.250.6.4]

d. If you ran a traceroute from a different computer network, check the output for that traceroute file as well. Was the number of hops different to reach the same destination from different local ISPs? Which ISP was able to reach the destination in fewer hops?

Jawab:

Jumlah HOP untuk mencapai destination pada sebuah alamat tracert yang dituju akan tetap sama. Meskipun telah dilakukan beberapa kali test tracert akan memunculkan jumlah list hop yang sama. Maka ISP yang membutuhkan sedikit hop untuk mencapai tujuannya adalah ISP B (cable service provider)

Step 3: Map the connectivity of your ISP

a.    For each traceroute output, draw a diagram on a separate sheet of paper showing how your local ISP interconnects with other ISPs to reach the destination URL, as follows: 

1.    Show all of the devices in sequence from the LAN router to the destination website server. Label all of the devices with their IP addresses.

2.    Draw a box around the local POP router that you identified, and label the box “POP”. 

3.    Draw an ISP cloud around all the routers that belong to each ISP, and label the cloud with the ISP name.

4.    Draw a box around any IXP routers that you identified, and label the box “IXP”. 

b.    Use the Global Connectivity Map to create a combined drawing showing only ISP clouds and IXP boxes. 

Worksheet for Routes Traced

Destination URL: www.ripe.net [193.0.6.139]          Total Number of Hops: 16

Router IP Address	Router URL (if any)	Network Owner (LAN, Name of ISP or IXP)
192.168.190.6		ns4.unp.ac.id
192.168.37.9	58.26.87.109	tm.net.my
66.110.59.18		losangeles.as6453.net
216.6.84.49		losangeles.as6453.net
216.6.84.2		njy-newark.as6453.net
216.6.57.66		nto-newyork.as6453.net
80.231.81.45		ad1-amsterdam.as6453.net
80.231.81.18		ad1-amsterdam.as6453.net
195.219.150.70		ad1-amsterdam.as6453.net
195.69.144.68		gw.amsix.nikrtr.ripe.net
193.0.6.139		www.ripe.net