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Final Exam Answer
CCNA EXAM 640 - 802
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1. Which devices will create multiple collision domains in an Ethernet network? (Choose two.)

Switch

router

2. How many collision domains are shown in the diagram?

Seven

3. Refer to the exhibit. The physical documentation shows a portion of the internetwork of the ABC Company. Which segments will be free of collisions?

segments 3, 4, and 5

4. Refer to the exhibit. Which diagram represents the network topology that an administrator would prefer, and why would the administrator prefer it?

Diagram A. It will better provide available bandwidth to the hosts.

5. After an unsuccessful ping to the local router, the technician decides to investigate the router. The technician observes that the lights and fan on the router are not operational. In which layer of the OSI model is the problem most likely occurring?

Physical

6. Refer to the exhibit. How many broadcast domains are shown?

Three

7. Refer to the exhibit. A network associate needs to establish an Ethernet connection between Host A and Host B. However, the distance between the two hosts is further than the cabling standards allow. Which two devices that operate at the physical layer of the OSI can be used to allow Host A and Host B to communicate? (Choose two.)

hub

repeater

8. Refer to the exhibit. What must be configured on Host B to allow it to communicate with the file server? (Choose three.)

a unique host IP address

the subnet mask for the LAN

the default gateway address

9. Refer to the exhibit. Host A pings Host B. What can be concluded about the source and destination addresses contained in the communication sent by Router R5 when it forwards the ping out the Ethernet interface to Host B? (Choose two.)

source MAC address: 5555.AAAA.6666

destination IP address: 192.168.10.134

10. What is the correct number of usable subnetworks and hosts for the IP network address 192.168.35.0 subnetted with a /28 mask?

14 networks / 14 hosts

11. Refer to the exhibit. The network administrator wants to create a subnet for the point-to-point connection between the two routers. Which subnetwork mask would provide enough addresses for the point-to-point link with the least number of wasted addresses?

255.255.255.252

12. Refer to the exhibit. A network technician is trying to determine the correct IP address configuration for Host A. What is a valid configuration for Host A?

IP address: 192.168.100.20; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.17

13. Two peer hosts are exchanging data using TFTP. During the current session, a datagram fails to arrive at the destination. Which statement is true regarding the retransmission of the datagram?

Datagram retransmission is controlled by the application.

14. Which protocols are TCP/IP application layer protocols? (Choose two.)

TFTP

DNS

15. When using Category 5 UTP cable, which RJ-45 pin pairs are used to exchange data between hosts on an Ethernet network?

1 and 2; 3 and 6

16. In the exhibit, the connections between the devices are labeled A, B, C, D, and E. For each connection, what is the correct UTP cable to use?

A=rollover, B=straight, C=straight, D=crossover, E=crossover

17. Which cable diagram displays the end to end pinout for a crossover cable used with Cisco devices?

Cable C

18. Which subnet masks could be used when subnetting a Class B IP address? (Choose two.)

255.255.255.240

255.255.192.0

19. Which physical network topology is easy to monitor and troubleshoot, easy to add new devices to as the network expands, but subject to complete failure when a central hub or switch ceases to work?

Star

20. A computer technician is asked to make a network cable. One end of the cable is pinned as a 568A and the other as a 568B. For what purposes can this cable be used? (Choose two.)

to connect a switch to a switch

to connect a hub to a switch

21. Refer to the exhibit. Workstation 1 pings the Fa0/1 interface of Router 1. Which MAC address will workstation 1 obtain during the ARP request for this communication?

00-08-A3-B6-CE-02

22. Refer to the exhibit. A network administrator has configured a network after subnetting the network number 192.168.0.0/28. Workstation 1 is not able to communicate with Workstation 2. What is the cause of this loss in communications?

Workstation 1 is not on the same network that the Router 1 LAN interface is on.

23. Which network device creates the highest amount of latency?

Router

24. An Ethernet host receives a frame, calculates the FCS, and compares the calculated FCS to the FCS received in the frame. The host finds that the two FCS values do not match. What action will be taken by the host?

The host discards the frame.

25. A user initiates three simultaneous FTP connections from the local host to the same FTP server. Which OSI layer is responsible for establishing and managing these different FTP connections?

Session

26. A network administrator has installed a 24 port switch and connected 10 computers with 10/100 NICs. If the NICs are operating at 100 Mbps, how much bandwidth is available for each computer to receive data?

100 Mbps

27. Based on the graphic above, which of the following occurs as each host system comes on line in the topology?

The switch adds MAC address to the bridge table as each host sends a frame.

28. Consider the networks shown in the exhibit. Host A is sending packets to host B. Which layer of the OSI model is being used when the router is making the calculated decision to determine which interface to send the packet out?

Network

29. Why would a company install a switch instead of a hub when building or expanding a corporate network?

A switch provides more bandwidth by sending frames only out the port to which the destination device is attached. A hub sends the frame out all ports except the source port.

30. Refer to the exhibit. The hub and the switch are operating using factory default settings. Which hosts will receive the frame if host A transmits a broadcast frame?

Workstations B, C, D, E, and the router will receive the data.

31. Refer to the exhibit. What kind of Ethernet cable is represented?

straight-through cable

32. The ping command can be used to test connectivity between hosts. Which OSI model layers are verified by this test?

Layers 1, 2 and 3

33. A technician is testing connectivity between the devices using the ping command. Pings between Host B and Host A were successful. The technician could not ping the R3 address 172.16.3.2 from Host A. The technician issued ipconfig from Host A and saw the information displayed in the exhibit. What is the most likely problem?

The default gateway of Host A is incorrect.

34. Why do vendors utilize the OSI model when designing networking products?

It ensures greater compatibility and interoperability with equipment from different vendors.

35. A router determines the path to deliver a packet. What layer of the OSI model does this fact represent?

Network

36. How does a switch learn the addresses of hosts connected to its ports?

The switch reads the source MAC address on incoming frames and records it in CAM.

37. Refer to the exhibit. The connections in the exhibit are labeled A through E. Which of these indicate LAN links? (Choose two.)

link A

link E

38. A large company has a network that is constantly changing. The routing tables in the routers need to be adjusted to reflect the changes in the routing paths. What type of routing would the network administrator implement?

dynamic routing protocols

39. A network administrator has added a new switch to the network. The new switch connects to an existing switch that is already installed. Which UTP cable correctly connects the new switch to the existing switch?

crossover

40. Refer to the exhibit. A newly hired technician has a task of terminating CAT 5 UTP cables. The network administrator visually examined the cables the technician terminated. Some of the cables have connectors as shown in the exhibit. What should the network administrator explain to the technician about the cables?

The cable in Graphic A will produce more crosstalk.

41. Refer to the exhibit. What is the order of the TCP/IP Protocol Data Units as data is moved as indicated through the OSI model?

bits, frames, packets, segments, data

42. Refer to the exhibit. Which type of UTP cable should be used to connect Host A to Switch1?

straight-through

43. Which technologies are considered to be LAN technologies? (Choose two.)

Token Ring

Ethernet

44. Refer to the topology in the graphic. Which characteristic does this type of topology possess?

Communication continues in the event of a break in any one connection.

45. Which characteristics are common to both UDP and TCP? (Choose two.)

uses port numbers

classified as a transport layer protocol

46. A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong?

172.16.192.160

47. Which type of address is 192.168.170.112/28?

subnetwork address

48. What is the decimal representation of the binary number 11111000?

248

49. What are important characteristics to consider when purchasing a network interface card? (Choose two.)

media used on the network system

bus used on the computer

50. Which of the following statements are correct about CSMA/CD? (Choose three.)

It is a media access method used in LANs.

When a device needs to transmit, it checks to see if the media is available.

Only one device can successfully transmit at a time.









1. A PC can not connect to any remote websites, ping its default gateway, or ping a printer that is functioning properly on the local network segment. Which action will verify that the TCP/IP stack is functioning correctly on this PC?

--> Use the ping 127.0.0.1 command at the command prompt.


2. Refer to the exhibit. Which set of devices contains only intermediary devices?

--> A, B, D, G

3. Refer to the exhibit. When computer A sends a frame to computer D, what computers receive the frame?

--> only computer D


4. Which password is automatically encrypted when it is created?

--> enable secret

5. Which three statements characterize the transport layer protocols? (Choose three.)

--> TCP and UDP port numbers are used by application layer protocols.

--> TCP uses windowing and sequencing to provide reliable transfer of data.

--> TCP is a connection-oriented protocol. UDP is a connectionless protocol.


6. Which type of media is immune to EMI and RFI? (Choose two.)

--> 100 Base-FX

--> 1000 Base LX


7. Refer to the exhibit. A technician is working on a network problem that requires verification of the router LAN interface. What address should be pinged from this host to confirm that the router interface is operational?

--> 192.168.254.1


8. Refer to the exhibit. The diagram represents the process of sending email between clients.
Select the list below that correctly identifies the component or protocol used at each numbered stage of the diagram.

--> 1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8.MUA

9. Refer to the exhibit. What function does router RT_A need to provide to allow Internet access for hosts in this network?

--> address translation

10. Refer to the exhibit. The network containing router B is experiencing problems. A network associate has isolated the issue in this network to router B? What action can be preformed to correct the network issue?

--> issue the no shutdown command on interface FastEthernet 0/1


11. Which three IPv4 addresses represent a broadcast for a subnet? (Choose three.)

--> 172.16.4.63 /26

--> 172.16.4.191 /26

--> 172.16.4.95 /27


12. What are three characteristics of CSMA/CD? (Choose three.)

--> A device listens and waits until the media is not busy before transmitting.

--> All of the devices on a segment see data that passes on the network medium.

--> After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired.

13. In a Cisco IOS device, where is the startup-configuration file stored?

--> NVRAM

14. A routing issue has occurred in you internetwork. Which of the following type of devices should be examined to isolate this error?

--> router


15. Which OSI layer protocol does IP rely on to determine whether packets have been lost and to request retransmission?

--> transport


16. Due to a security violation, the router passwords must be changed. What information can be learned from the following configuration entries? (Choose two.)

--> The entries specify four Telnet lines for remote access.
The entries set the console and Telnet password to "c13c0".
Telnet access will be denied because the Telnet configuration is incomplete.
--> Access will be permitted for Telnet using "c13c0" as the password.

17. Which prompt represents the appropriate mode used for the copy running-config startup-config command ?

--> Switch-6J#


18. Which combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 through 172.16.159.255?

--> 172.16.128.0 255.255.224.0

19. When must a router serial interface be configured with the clock rate command?

--> when the interface is functioning as a DCE device

20. When connectionless protocols are implemented at the lower layers of the OSI model, what are usually used to acknowledge the data receipt and request the retransmission of missing data?

--> upper-layer connection-oriented protocols


21. A technician is asked to secure the privileged EXEC mode of a switch by requiring a password. Which type of password would require this login and be considered the most
secure?

--> enable secret


22. Refer to the exhibit. What is required on host A for a network technician to create the initial configuration on RouterA?

--> a terminal emulation program


23. Refer to the exhibit. A network administrator remotely accesses the CLI of RouterB from PC1. Which two statements are true about the application layer protocol that is used to make this connection? (Choose two.)

-->The connection type is called a VTY session.

--> The application name is the same for the service, protocol, and client.


24. The Layer 4 header contains which type of information to aid in the delivery of data?

--> service port number


25. Refer to the exhibit. What two facts can be determined about the exhibited topology? (Choose two.)

--> A single broadcast domain is present

--> Five collision domains exist.


26. Refer to the exhibit. A network technician is trying to determine the correct IP address configuration for Host A. What is a valid configuration for Host A?

--> IP address: 192.168.100.20; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.17


27. Refer to the exhibit. Cable 1 and cable 2 have the ends wired for specific physical layer requirements. The table lists each segment by number and the cable which has been installed by the network technician between the network components on that segment. From the data
given, which segments have the correct cable installed? (Choose three.)


--> segment1

--> segment3

--> segment4


28. What is true regarding network layer addressing? (Choose three.)

--> uses a flat structure

--> uniquely identifies each host

--> contains a network portion


29. Refer to the exhibit. A router, whose table is shown, receives a packet that is destined for 192.168.1.4. How will router treat the packet?


--> The packet will be forwarded to the destination host.



30. Refer to the exhibit. Which two statements describe the information that is represented in the header? (Choose two.)


--> The destination port indicates a Telnet session.

--> The return segment will contain a source port of 23.



31. Refer to the exhibit. What is the correct destination socket number for a web page request from Host A to the web server?


--> 198.133.219.25:80
http://www.cisco.com


32. During the encapsulation process, which identifiers are added at the transport layer?


--> two applications communicating the data



33. Refer to the exhibit. A student has wired each end of a CAT 5e cable as shown. What is the result? (Choose two.)


--> The cable is suitable for use as a Fast Ethernet crossover.

--> The cable is suitable for use between two 100 Mbps Auto-MDIX capable switches.


34. Refer to the exhibit. Assume all devices are using default configurations. How many subnets are required to address the topology that is shown?


--> 3



35. Refer to the exhibit. On the basis of the IP configuration that is shown, what is the reason that Host A and Host B are unable to communicate outside the local network?


--> The gateway address was assigned a broadcast address.



36. Refer to the exhibit. Each media link is labeled. What type of cable should be used to connect the different devices?

--> Connection 1 - straight-through cable , Connection 2 - crossover cable , Connection 3 - straight-through cable



37. Refer to the exhibit. What does the IP address 192.168.33.2 represent?

--> The host's primary domain name server.



38. Refer to the exhibit. What two facts can be determined from the information that is given? (Choose two.)


--> The destination port indicates that an HTTP session has been initiated.

--> The data listed is associated with the transport layer.


39. Which of the following are the address ranges of the private IP addresses? (Choose three.)

--> 10.0.0.0 to 10.255.255.255

--> 172.16.0.0 to 172.31.255.255

--> 192.168.0.0 to 192.168.255.255



40. Which two functions of the OSI model occur at layer two? (Choose two.)


--> physical addressing

--> media access control



41. Which range of port numbers are reserved for services that are commonly used by applications that run on servers?

--> 0 to 1023


42. As network administrator, what is the subnet mask that allows 510 hosts given the IP address 172.30.0.0?


--> 255.255.254.0



43. Refer to the exhibit. The tracert command is initiated from PC1 to the destination PC4. Which device will send a response to the initial packet from PC1?


--> Athens


44. Refer to the exhibit. Host A is transmitting data to host B. What addresses will host A use to for the destination IP and MAC addresses in this communication?


--> Destination MAC: EEEE:EEEE:EEEE Destination IP: 172.22.0.75


45. Refer to the exhibit. Which logical topology best describes the exhibited network?


--> star


46. Examine the graphic with current configurations. Host A in the Clerical offices failed and was replaced. Although a ping to 127.0.0.1 was successful, the replacement computer can not access the company network. What is the likely cause of the problem?


--> subnet mask incorrectly entered



47. Refer to the exhibit. With the router running NAT, what IP addresses can be applied to the computer to allow access to the Internet? (Choose three.)


--> 192.168.18.49

--> 192.168.18.52

-->192.168.18.59



48. Refer to the exhibit. What three statements are true about the IP configuration that is shown? (Choose three.)



--> The address that is assigned to the computer represents private addressing.

--> The computer is unable to communicate outside of the local network.

--> The prefix of the computer address is /27.



49. Refer to the exhibit. Host A attempts to establish a TCP/IP session with host C. During this attempt, a frame was captured with the source MAC address 0050.7320.D632 and the destination MAC address 0030.8517.44C4. The packet inside the captured frame has an IP source address 192.168.7.5, and the destination IP address is 192.168.219.24. At which point in the network was this packet captured?

--> leaving Dallas


50. Which of the following OSI layers offers reliable, connection-oriented data communication services?


--> transport



1. Refer to the exhibit. Host B attempts to establish a TCP/IP session with host C. During this attempt, a frame was captured at the FastEthernet interface fa0/1 of the San Francisco router. The packet inside the captured frame has the source IP address 10.10.1.2, and the destination IP address is 10.31.1.20. What is the destination MAC address of the frame at the time of capture?• 0060.7320.D632• 0060.7320.D631• 0040.8517.44C3• 0009.B2E4.EE03• 0010.C2B4.34212. What are three characteristics of CSMA/CD? (Choose three.)• It monitors the media for presence of a data signal.• After detecting a collision, hosts can resume transmission after a random timer has expired.• A jam signal is used to ensure that all hosts are aware that a collision has occurred.• Devices can be configured with a higher transmission priority.• Data is transmitted only when the data signal is present.• It uses a token system to avoid collisions.3. Refer to the exhibit. The PC, the routing table of which is displayed, is configured correctly. To which network device or interface does the IP address 192.168.1.254 belong?• PC• switch• router interface fa0/0• router interface fa0/14. Refer to the exhibit. Host A wants to access the Internet. Which combination of a Layer 2 address and a Layer 3 address will enable this access from host A?• Destination MAC: 0030.8596.DE83 Default gateway: 209.165.202.130• Destination MAC: 0030.8596.DE82 Default gateway: 172.16.9.2• Destination MAC: 0030.8517.44C4 Default gateway: 172.16.1.1• Destination MAC: 0030.8517.44C4 Default gateway: 209.165.202.1305. Refer to the exhibit. Communication between hosts X and Y is restricted to the local network. What is the reason for this?• The gateway addresses are broadcast addresses.• Host Y is assigned a multicast address.• Host X and host Y belong to different networks.• Host X is assigned a network address.6. What is the result of using the clock rate 56000 command at the serial interface of the router?• The interface is configured as a DCE device.• The interface timers are cleared.• The FastEthernet interface is made to emulate a serial interface by assigning it a timing signal.• The IP address for the serial interface is configured.7. Which three addresses belong to the category of public IP addresses? (Choose three.)• 127.0.0.1• 196.1.105.6• 132.11.9.99• 10.0.0.1• 172.16.9.10• 46.1.1.97
8. Which three statements are true about transport layer protocols? (Choose three.)• TCP and UDP manage communication between multiple applications.• TCP retransmits the packets for which the acknowledgment is not received.• TCP acknowledges received data.• UDP exchanges frames between the nodes of the network.• TCP has no mechanism to acknowledge transmission errors.• UDP uses windowing and sequencing to provide reliable transfer of data.9. Refer to the exhibit. Which logical topology describes the exhibited network?• star• ring• point-to-point• multi-access10. Which statement is true about the running configuration file in a Cisco IOS device?• It affects the operation of the device immediately when modified.• It is stored in NVRAM.• It should be deleted using the erase running-config command.• It is automatically saved when the router reboots.11. Refer to the exhibit. Host C is able to ping 127.0.0.1 successfully, but is unable to communicate with hosts A and B in the organization. What is the likely cause of the problem?• Hosts A and B are not on the same subnet as host C.• The IP addresses on the router serial interfaces are wrong.• The subnet mask on host C is improperly configured.• The FastEthernet interface fa0/0 of router 1 is wrongly configured.12. A host is transmitting a video over the network. How does the transport layer allow this host to use multiple applications to transmit other data at the same time as the video transmission?• It uses error control mechanisms.• It uses a connectionless protocol only for multiple simultaneous transmissions.• It uses multiple Layer 2 source addresses.• It uses multiple port numbers.13. Refer to the exhibit. PC1 is unable to access PC2. To troubleshoot this problem, the technician needs to confirm that the next hop interface is operational. Which default gateway address should the technician ping from PC1 to confirm this?• 10.0.0.254• 192.168.0.249• 192.168.0.250• 10.0.1.254
14. Refer to the exhibit. Cable 1 and Cable 2 are wired for specific physical layer requirements. Which three segments use Cable 2? (Choose three.)• Segment 1• Segment 2• Segment 3• Segment 4• Segment 5• Segment 615. Refer to the exhibit. Which two facts can be determined about the topology? (Choose two.)• Three networks are needed.• Two logical address ranges are required.• A single broadcast domain is present.• Three collision domains are present.• Four networks are needed.16. Refer to the exhibit. Which three statements are true about the IP configuration that is displayed? (Choose three.)• The assigned address is a private address.• The PC cannot communicate with the DNS server.• The network can have 126 hosts.• The prefix of the computer address is /26.• The IP address is routable on the Internet.• The IP address is a multicast address.17. Which password restricts Telnet access to the router?• enable• enable secret• console• VTY18. Refer to the exhibit. To create the initial configuration, a network technician connected host A to the router using the connection that is shown. Which statement is true about this connection?• It terminates at the Ethernet port of the router.• It provides out-of-band console access.• It terminates at the serial interface of the router.• It requires a Telnet client on host A to access the router.19. Which device should be used for routing a packet to a remote network?• access switch• DHCP server• hub• router
20. Refer to the exhibit. The serial interface of the router was configured with the use of the commands that are shown. The router cannot ping the router that is directly connected to interface serial 0/0/0. What should the network technician do to solve this problem?• Configure the description at interface serial 0/0/0.• Configure an IP address on interface serial 0/0/0.• Remove the no shutdown command at interface serial 0/0/0• Reboot the router.21. Refer to the exhibit. In a network, host A is sending data segments to host B. The flow control of the segments that are being exchanged is displayed. Which two statements are true about this communication? (Choose two.)• The initial window size is determined via the two-way handshake.• The window size for the TCP session that is represented is initially set to 3000 bytes.• Acknowledgment number 3001 indicates that host A will send the next segment with sequence number 3001.• Host B expects that the next received segment number will be 3000.• No more acknowledgments will be exchanged.
22. Refer to the exhibit. The network administrator wants to remotely access the CLI of the router from PC1 using modem 1. Which port of the router should be connected to modem 2 to enable this access?• console• Ethernet• auxiliary• serial23. Which OSI layer uses a connection-oriented protocol to ensure reliable delivery of data?• application layer• presentation layer• session layer• transport layer24. What are two functions of the data link layer? (Choose two.)• It segments and reorders the data.• It exchanges data between programs that are running on the source and destination hosts.• It controls how data is placed onto the media.• It generates signals to represent the bits in each frame.• It encapsulates each packet with a header and a trailer to transfer it across the local media.25. Refer to the exhibit. Which list refers only to end devices?• D,E,F,G• A,H,B,C• A,D,E,F• A,D,E,G26. Refer to the exhibit. The diagram represents the process of sending e-mail between clients. Which list correctly identifies the component or protocol used at each numbered stage of the diagram?• 1.MUA 2.MDA 3.MTA 4.SMTP 5.MTA 6.POP 7.MDA 8.MUA• 1.MUA 2.POP 3.MDA 4.SMTP 5.MTA 6.MDA 7.SMTP 8.MUA• 1.MUA 2.POP 3.SMTP 4.MDA 5.MTA 6.SMTP 7.POP 8.MUA• 1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8.MUA27. Refer to the exhibit. Host B was powered off. What change will occur in the MAC table of the switch?The table will remain unaffected.• The switch will remove the MAC address at Fa0/19 immediately.• The switch will retain the MAC address until host B is powered on again.• The switch will rebuild the MAC table by assigning the FFFF.FFFF.FFFF address to port Fa0/19.28. Refer to the exhibit. A technician has connected the PC to the switch using a Category 6 UTP cable. Which two statements are true about this connection? (Choose two.)• The cable that is used is an Ethernet crossover cable.• The transmit pin of the cable is terminated to the receive pin.• The maximum distance between the switch and the PC can be 100 m.• The maximum supported bandwidth is 1000 Mb/s.• The Category 6 cable simulates a point-to-point WAN link and is unusable for this type of connection.29. Refer to the exhibit. A host is using NAT to connect to the Internet. Which three IP addresses enable this connection? (Choose three.)• 10.1.1.63• 10.1.1.37• 10.1.1.39• 10.1.1.32• 10.1.1.60• 10.1.1.230. Refer to the exhibit. A PC is communicating with another PC on a remote network. The two networks are connected by three routers. Which action will help to identify the path between the hosts?• Use the ipconfig command at the host.• Use the ipconfig/all command at the destination.• Use the tracert command at the host.• Use the ping command at the destination.31. An organization wants to create a subnet of the IP network 172.16.0.0. This subnet will accommodate 1000 hosts. Which subnet mask should be assigned to this network?• 255.255.0.0• 255.255.248.0• 255.255.252.0• 255.255.254.0• 255.255.255.0• 255.255.255.12832. Refer to the exhibit. A host is connected to hub 1. Which combination of IP address, subnet mask, and default gateway can allow this host to function in the network?• IP address: 172.16.31.36 Subnet mask: 255.255.255.240 Default gateway: 172.16.31.35• IP address: 172.16.31.63 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35IP address: 172.16.31.29 Subnet mask: 255.255.255.248 Default gateway: 172.16.31.35• IP address: 172.16.31.32 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35• IP address: 172.16.31.29 Subnet mask: 255.255.255.240 Default gateway: 172.16.30.1• IP address: 172.16.31.37 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.3533. Refer to the exhibit. A technician uses the nslookup command on the PC and views the output that is displayed in the exhibit. What is the IP address of the primary domain name server configured at the host? (Choose two.)• 192.168.1.99• 192.168.2.100• 10.10.10.32• 192.168.1.5• the IP address of the website resolver1.xyz.local34. Which OSI layer offers ordered data reconstruction services?• application layer• network layer• presentation layer• session layer• transport layer
35. Refer to the exhibit. All devices in the network use default configurations. How many logical address ranges are required in this topology?• 2• 3• 4• 5• 636. The network administrator wants to install a private application on a server. Which range of port numbers is normally assigned to this application to make it accessible by clients?• 0 to 255• 49152 to 65535• 1024 to 49151• 0 to 102337. Because of a security violation, the router password must be changed. What information can be learned from these configuration entries? (Choose two.)
• Router(config)# line vty 0 4
Router(config-line)# password arj15
Router(config-line)# login• This configuration allows users to connect by using a modem.• Users must specify which line, 0 or 4, they wish to connect to when making a connection.• This configuration allows users to connect to the router via the use of the telnet command.• This configuration allows five users to make simultaneous connections to this router.• The configured password is automatically encrypted on the router.38. Refer to the exhibit. Each media link is labeled. What type of cable should be used to connect the different devices?• Connection 1 - rollover cable Connection 2 - straight-through cable Connection 3 - crossover cable• Connection 1 - straight-through cable Connection 2 - crossover cable Connection 3 - rollover cable• Connection 1 - crossover cable Connection 2 - rollover cable Connection 3 - straight-through cable• Connection 1 - crossover cable Connection 2 - straight-through cable Connection 3 - rollover cable• Connection 1 - straight-through cable Connection 2 - straight-through cable Connection 3 - straight-through cable39. Which two types of media are useful for connecting two devices separated by a distance of 500 meters? (Choose two.)• 10 BASE-T• 1000 BASE-TX• 10 BASE-2• 1000 BASE LX• 1000 BASE-SX40. Which information is used by the router to determine the path between the source and destination hosts?• the host portion of the IP address• the network portion of the IP address• host default gateway address• the MAC address41. Refer to the exhibit. What two facts can be determined from the session information that is displayed? (Choose two.)• This exchange is part of the three-way handshake.• The destination port indicates that a Telnet session has been initiated.• The source port does not support communication with the destination port that is listed.• The destination port indicates that an SMTP session has been initiated.• The protocol is a connection-oriented protocol.42. Refer to the exhibit. Host A is accessing multiple servers. Which combination of port number and address will uniquely identify a particular process running on a specific server?• MAC address of the server and port number of the service• IP address of the host and port number of the service• MAC address of the host and port number of the service• IP address of the server and port number of the service43. A network technician wants to configure an IP address on a router interface by using the ip address 192.168.1.0 255.255.255.0 command. Which prompt should the technician see when entering this command?• Router>• Router(config-if)#• Router#• Router(config)#44. Refer to the exhibit. Host X is unable to communicate with host Y. Which command can be run at host X to determine which intermediary device is responsible for this failure?• telnet 192.168.1.1• ping 192.168.1.1• ftp 192.168.1.1• tracert 192.168.1.1
45. Refer to the exhibit. In a network, PC1 sends a message to PC2. The frame received at PC2 is shown. What information in this frame determines the correct destination application?• timing and synchronization bits• destination and source physical addresses• destination and source logical network addresses• destination and source process numbers46. An organization has been assigned network ID 10.10.128.0 and subnet mask 255.255.224.0. Which IP address range can be used for this organization?• 10.10.128.0 to 10.10.160.255• 10.10.128.0 to 10.10.159.255• 10.10.128.0 to 10.10.192.255• 10.10.128.0 to 10.10.0.159• 10.10.128.0 to 10.10.159.047. What is the effect of using the Router# copy running-config startup-config command on a router?• The contents of ROM will change.• The contents of RAM will change.• The contents of NVRAM will change.• The contents of flash will change.
48. Which three IPv4 addresses represent valid host addresses for a subnet? (Choose three.)• 10.1.12.79/28• 10.1.12.113/28• 10.1.12.32/28• 10.1.11.5/27• 10.1.11.97/27• 10.1.11.128/27
49. Refer to the exhibit. The NAT functionality of the router is enabled to provide Internet access to the PC. However, the PC is still unable to access the Internet. Which IP address should be changed to 209.165.201.1 to enable the PC to access the Internet?• 192.168.1.191• 192.168.1.101• 192.168.1.1• 192.168.1.25450. Which three statements are true about network layer addressing? (Choose three.)• It uniquely identifies each host.• It assists in forwarding packets across internetworks.• It uses a logical 32-bit IPv4 address.• It is not a configurable address.• It is a physical address.• It identifies the host from the first part of the address























Alfredo Javier González Rivera 1103075

Todos conocemos lo sucedido en México el 2 de octubre del 68 (la noche de tlatelolco), o cuando menos tenemos una buena idea, sin embargo no todos sabemos que sucedió en San Salvador Atenco el 4 de mayo del 2006 y es que si analizamos algunos puntos puede que no estén tan alejados el uno del otro.

Nunca olvidaremos el 2 de octubre, día en el que México se mancho de sangre de jóvenes estudiantes que solo luchaban por sus ideales, nunca olvidaremos esas madres que recuerdan año con año a sus hijos desaparecidos y más importante que todo nunca podremos borrar las cicatrices de esa masacre.

El daño esta hecho, ¿a quién culpar?, ¿a quién meter a la cárcel?, lamentablemente fue hace ya mucho tiempo de esto y no queda más que hacer que aprender de este error, de esta barbarie de la que fue víctima todo el pueblo mexicano, pero… ¿En realidad hemos aprendido algo?

El 4 de mayo del 2006 en San Salvador Atenco, municipio del Estado de México se llevo a cabo al amanecer un operativo policiaco para replegar a los activistas de dicho municipio los cuales tenían detenidos a 12 policías y no permitían el paso en la carretera Texcoco-Lechería, mientras se luchaba en las calles con bombas molotov, gases lacrimógenos, y otras armas, se reunieron cerca de 3000 elementos de la fuerza pública para contrarrestar la débil resistencia atenquense. Alrededor de las 7:30 a.m. se estaban llevando a cabo los últimos arrestos. Sin embargo aquí no termina toda la historia. Una vez que la fuerza pública se había adueñado de la plaza, los policías allanaron decenas de hogares realizando actos de abuso de poder ya que no contaban con órdenes de cateo y además propinaron una serie de abusos a mujeres y hombres por igual, llegando a violaciones, arrestos sin justificación, golpes, etc.

Por desgracia medios como TvAzteca y Televisa no mostraron estos hechos, lo cual nos hace dudar de su calidad como noticieros, y más importante que todo de su compromiso con el pueblo.

A lo que quiero llegar con esta reflexión es que los medios no han cambiado desde los días de Tlatelolco, se sigue diciendo lo que quiere y como quiere el Gobierno, ¿Es acaso que no nos sirve de nada nuestro pasado? ¿Acaso el gobierno va a seguir reprimiendo a la gente abusando de su poder?, yo no critico que desalojen a los activistas, ¿pero qué culpa tenía la gente de alrededor?, necesitamos aprender más de nuestro pasado y no sólo recordarlo en los días conmemorativos, el pasado y la historia son para aprender y para no olvidarnos de donde venimos.

Bibliografía
Un muerto y decenas de heridos al enfrentarse ejidatarios y policías
RENE RAMON, JAVIER SALINAS; GUSTAVO CASTILLO, ROBERTO GARDUÑO CORRESPONSALES Y ENVIADOS
Jueves 4 de mayo de 2006
pag. 3 sec. Política
http://www.jornada.unam.mx/2006/05/04/003n1pol.php

Sitian 500 granaderos a atenquenses y floricultores
JAVIER SALINAS, RENE RAMON; ROBERTO GARDUÑO, GUSTAVO CASTILLO CORRESPONSALES Y ENVIADOS
Jueves 4 de mayo de 2006
pag. 5 sec. Política
http://www.jornada.unam.mx/2006/05/04/005n1pol.php