Jumat, 15 Agustus 2014

Kunci Jawaban Cisco CCNA Discovery 1 Final EXAM

1. A host sent a message that all other hosts on the switched local network received and processed. What type of domain are all these hosts a part of?
 local domain
 multicast domain
 collision domain
 broadcast domain

2. Which two statements are true about local applications? (Choose two.)
 They run on the network.
 An example of a local application is e-mail.
 They are accessed from a remote computer.
 They are stored on the local hard disk.
 They run on the computer where they are installed.


3.
Refer to the exhibit. What cabling fault does the exhibit represent?
 open
 reversed pair
 short
 split pair

4. A learner wants to interact with the operating system of a computer. Which two methods can be used for this? (Choose two.)
 CLI
 GUI

 kernel
 third party software
 shell

5. What is an advantage of selecting an operating system that has a commercial license over one with a GPL license?
 The commercial license-based operating system ensures full access to the source code for everyone.
 The commercial license-based operating system ensures that everyone can participate in the enhancement of the product.
 The commercial license-based operating system provides structured support.
 The commercial license-based operating system is released free of charge.

6.
Refer to the exhibit. If H4 sends a message to H1 and the destination MAC address is in the MAC table for both Switch1 and Switch2, which host devices will receive the message?
 only H1
 hosts H1 and H4
 all hosts that are connected to Switch1
 all hosts that are connected to Switch1 and Switch2

7. For an IP address, what component decides the number of bits that is used to represent the host ID?
 default-gateway
 host number
 network number
 subnet mask

8. The help desk at a large packaging company receives a call from a user who is concerned about lost data files on the local PC. The help desk technician learns that the user clicked on an icon that appeared to be a program update, but no updates were scheduled for that program. What type of attack has likely occurred?
 worm
 DDoS
 brute force
 Trojan horse

9. What is the purpose of the ipconfig /release command?
 It forces a client to give up its current IP address.
 It forces a client to give up its current MAC address.
 It forces the client to clear all the MAC address to IP address associations it has learned.
 It shows the current IP configuration on the client.

10. Which protocol in its default configuration downloads e-mail messages to the client computer and deletes them from the server?
 FTP
 POP3
 SMTP
 IMAP4


11. What are two examples of storage peripheral devices? (Choose two.)
 printer
 flash drive
 headphones
 external DVD
 barcode reader

12. What is the function of the DNS server?
 It maps the IP address to the MAC address.
 It translates a computer or domain name to the associated IP address.
 It manages the domain that clients are assigned to.
 It accepts HTTP requests from clients.

13. What is the default subnet mask for an IP address of 64.100.19.14?
 255.0.0.0
 255.255.0.0
 255.255.255.0
 255.255.255.255

14. What are two best practices that are used when configuring a small home WLAN? (Choose two.)
 the use of EAP
 the encryption of the SSID
 the use of pre-shared keys
 the use of open authentication
 the disabling of SSID broadcasting

15. A network engineer wants to represent confidential data in binary format. What are the two possible values that the engineer can use? (Choose two.)
 0
 1

 2
 A
 F

16.
Refer to the exhibit. What is the purpose of assigning a network name of College?
 It enables access to the AP configuration GUI by name rather than by address.
 It encrypts data between the wireless client and the AP.
 It identifies the wireless LAN.
 It translates an internal address or group of addresses to a public address.
 It translates IP addresses into easy-to-remember domain names.

17. A network administrator has been notified that users have experienced problems gaining access to network resources. What utility could be used to directly query a name server for information on a destination domain?
 ping
 tracert
 netstat
 ipconfig
 nslookup

18. Which two causes of networking problems are related to the physical layer? (Choose two.)
 disconnected cables
 improper operation of cooling fans

 incorrect MAC address
 incorrect default gateway
 incorrect subnet mask

19. A network technician is required to provide access to the Internet for a large company. What is needed to accomplish this task?
 ISP
 private IP addresses for each host
 static IP addresses for each host
 DHCP server

20. Your school network blocks all websites related to online gaming. What type of security policy is being applied?
 identification and authentication
 remote access
 acceptable use
 incident handling

21.
Refer to the exhibit. What is the effect of setting the security mode to WEP on the Linksys integrated router?
 The WEP security mode enables the AP to inform clients of its presence.
 The WEP security mode encrypts network traffic during transmission between the AP and the wireless client.
 The WEP security mode generates a dynamic key each time a client establishes a connection with the AP.
 The WEP security mode identifies the WLAN.

22. When terminating UTP cabling, why is it important to untwist only a small amount of each wire pair?
 minimizes crosstalk
 makes installation faster
 ensures wires are in correct order
 makes it easier to fit wires into connector

23. Which part of the electromagnetic spectrum is commonly used to exchange data between a PDA and a computer?
 FM
 radar
 infrared
 ultraviolet

24. A network technician suspects that malware on a user PC is opening multiple TCP connections to a specific foreign host address. Which Windows command line utility can be used to confirm the multiple TCP connections?
 ping
 netstat
 tracert
 ipconfig
 nslookup

25. 
Refer to the exhibit. A user on host A sends an e-mail to the user on host B. Which type of message does host A send?
 broadcast
 multicast
 simulcast
 unicast

26. Which two transport layer protocols enable hosts to communicate and transfer data? (Choose two.)
 DHCP
 ICMP
 IP
 TCP
 UDP


27. The area covered by a single AP is known as what?
 ad-hoc network
 basic service set
 independent basic service set
 extended service set
 distribution system

28. What is the purpose of spam filter software?
 It detects and removes spyware.
 It detects and removes viruses.
 It prevents the display of advertisement windows.
 It examines incoming e-mail messages to identify the unsolicited ones.

29. What type of message is sent to a specific group of hosts?
 static
 unicast
 dynamic
 multicast
 broadcast

30. What layer is the first point of entry for a host into the network?
 core layer
 access layer
 network layer
 distribution layer

31. What type of cable would be required to connect a Linksys router to a wired PC?
 crossover cable
 rollover cable
 serial cable
 straight-through cable

32. 
Refer to the exhibit. Why would a network administrator use the network mode that is shown?
 to support hosts on different IP networks
 to support hosts that use different 802.11 standards
 to support both wireless and wired Ethernet hosts
 to support hosts with different operating systems
 to support hosts with network cards from different manufacturers

33. In an attempt to verify connectivity, a user issues the ping command to a device that is not on the local network. The ping is unsuccessful. What can be determined from this result?
 The default gateway is misconfigured.
 The patch cable on the host station is faulty.
 The router between the host and destination is faulty.
 Further troubleshooting will be required to reach a definite conclusion.

34. What is the function of CSMA/CA on a wireless Ethernet network?
 to prevent collisions
 to broadcast messages
 to select the least congested channel
 to establish an ACK between devices

35. Because of an increasing number of users, bandwidth per user on a WLAN has decreased to a point where users are complaining about poor performance. What can be done to improve the user experience?
 Increase the AP radio signal strength.
 Place the AP in a more central location.
 Deploy an external omni-directional antenna.
 Reduce the number of devices using each channel.

36. Which installation option enables a single physical resource to function simultaneously as multiple logical resources?
 clean install
 multi-boot
 upgrade
 virtualization

37. What is the purpose of creating a DMZ during network firewall implementation?
 to create a server security zone accessible only to internal clients
 to create a dirty zone that allows all inbound and outbound traffic
 to allow for a publicly accessible zone without compromising the internal network
 to specify a higher security level than normally required for the internal production network

38. What is specified by the host bits in an IP address?
 broadcast identity of the network
 identity of the computer on the network
 network that is being addressed
 network to which the host belongs

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
 200.100.50.0 to 200.100.25.255
 150.150.0.0 to 150.150.255.255
 172.16.0.0 to 172.31.255.255
 192.168.0.0 to 192.168.255.255

 127.16.0.0 to 127.31.255.255

40. Which type of computer uses an integrated monitor and keyboard?
 pocket PC
 laptop
 mainframe
 server
 workstation


41. A company has a web server that must be accessible to both external and internal clients. Which security policy best practice should be followed to maximize security of the server?
 Place the web server in a DMZ.
 Keep the web server on the external network.
 Configure a firewall device to serve as the web server.
 Locate the web server in the server farm of the internal network.

42. What advantage does a peer-to-peer network have over a client-server network?
 It increases security.
 It increases scalability.
 It produces a higher performance for hosts.
 It eliminates the need for centralized administration.

43. Where do ISPs get the public addresses that they assign to end users?
 ISPs create the addresses themselves.
 ISPs are assigned addresses through the RFC.
 ISPs obtain their addresses automatically.
 ISPs obtain address blocks from registry organizations.

44. Which part of a data packet is used by a router to determine the destination network?
 source IP address
 user data
 destination IP address
 control information
 destination MAC address

45. 
Refer to the exhibit. Assume that the command output is from a wireless DHCP client that is connected to a Linksys integrated router. What can be deduced from the output?
 The DHCP configuration on the router needs to be verified.
 The WEP key or SSID needs to be verified.
 The wireless connection is operational.
 The wireless NIC driver or the NIC itself needs to be reinstalled.

46. When acting as a DHCP server, an integrated router can provide what three types of information to a client? (Choose three.)
 physical address
 MAC address
 default gateway
 static IP address
 dynamic IP address
 DNS server address


47. Which transport layer protocol is used when an application requires acknowledgment that data has been delivered?
 FTP
 TCP
 UDP
 RTP
 SMTP

48. What does the term "attenuation" mean in data communication?
 loss of signal strength as distance increases
 time for a signal to reach its destination
 leakage of signals from one cable pair to another
 strengthening of a signal by a networking device

49. A user is unable to send e-mail. While troubleshooting this problem, the network technician first verifies the physical connectivity of cables. Which troubleshooting approach is being followed?
 bottom-up
 divide-and-conquer
 top-down
 trial and error

50. 
Refer to the graphic. Assume that the exhibited output is from a host that is connected to a Linksys integrated router. What is one of the first things you should check?
 IP address on the host
 IP address on the router
 subnet mask on the host
 default gateway on the host
 link status LED on the front of the router

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