CCNA Discovery 4 - Module 5 Exam Version 4.0 Designing and Supporting Computer Networks

1. What characteristic of a network supports high availability?
• VPNs
• high-bandwidth paths to servers
• redundancy
• wireless management

2. When applying network security, what security measure should be implemented first?
• securing the network devices
• implementing the firewalls or filters at the enterprise edge
• applying security to resources accessed by internal users
• applying ACLs to the interfaces of the routers in the internal network

3. What is integrated into a Cisco IP phone to reduce the number of ports needed in the wiring closet?
• hub
• router
• switch
• firewall appliance

4. Which network design process identifies where to place access points?
• site survey
• risk assessment
• scalability design
• network protocol analysis

5. Which two statements are true regarding the following extended ACL? (Choose two.)
• access-list 101 deny tcp 172.16.3.0 0.0.0.255 any eq 20
access-list 101 deny tcp 172.16.3.0 0.0.0.255 any eq 21
access-list 101 permit ip any any
• FTP traffic originating from network 172.16.3.0/24 is denied.
• All traffic is implicitly denied.
• FTP traffic destined for the 172.16.3.0/24 network is denied.
• Telnet traffic originating on network 172.16.3.0/24 is denied.
• Web traffic originating from 172.16.3.0 is permitted.

6. Refer to the exhibit. What is an advantage of having two links connected between the two switches shown?
• provides redundancy in case one of the switches fails
• provides connectivity to Switch1 when the link to the server fails
• provides connectivity when one of the connections between the switches fails
• provides power to the other switch when the other switch has lost AC power

7. Refer to the exhibit. Which statement is true regarding how the ISP router filters traffic?
• Traffic from the 64.100.0.1 address to any destination on the Internet is denied.
• Traffic from any source address entering the ISP router interface s0/0/0 is permitted.
• Only traffic with a source address of 64.100.0.1/30 is allowed into the ISP router interface s0/0/0.
• All traffic from the 64.100.0.0/21 network can access the Internet.
• Traffic from any source address can access the 64.100.0.0/21 network.

8. What is a primary function of a wireless LAN controller?
• tuning each AP channel for optimal coverage
• providing PoE to the wireless clients
• distributing VLAN information to the wireless clients
• serving as the point of connection between wireless clients and the wired LAN

9. A company lists this equipment in their network design:
Two Catalyst 4503 Layer 3 switches
One 5500 security appliance firewall
Two Catalyst 6509 switches
Two lightweight access points
Two Catalyst 2960 switches
Which two types of devices would be appropriate to use at the access layer to provide end-user connectivity? (Choose two.)
• Catalyst 4503 switches
• Cisco 1841 router
• Catalyst 6509 switches
• lightweight access points
• Catalyst 2960 switches

10. What characteristic in a routing protocol allows it to support the network design criteria for availability?
• CIDR support
• fast convergence
• timed updates
• VLSM suppor

11. Using expandable, modular network devices is a key element of what network design criteria?
• availability
• performance
• scalability
• security

12. What type of WAN service is Frame Relay?
• dedicated
• cell switched
• packet switched
• circuit switched

13. What are three features of a Catalyst 2960 switch? (Choose three.)
• network layer functionality
• redundant power availability
• route summarization
• SNMP
• switch clustering
• inter-VLAN routing

14. Which three design requirements are implemented at the access layer? (Choose three.)
• PoE
• VLANs
• high-density routing
• packet filtering
• rapidly converging routing protocols
• QoS traffic classification and marking

15. Which rule should be followed when implementing the security requirements of a network design?
• Always use a common security plan for all business needs.
• As standard practice, lower access restrictions for users if cost is too high.
• Avoid reducing security in order to add additional network capabilities.
• When possible, implement an IDS to protect users from spam.

16. What limitations of the 2960 switch prevent it from providing the services needed in the Distribution layer?
• It is limited to copper connections.
• It does not support QoS.
• It does not support voice VLAN capability.
• It does not support route summarization.

17. An automobile sales company is establishing a new, small sales showroom in a downtown area. To update the inventory database, the new sales office will need a WAN connection to the headquarters that is located in the suburban area. The WAN connection should be around a 4 Mb/s connection. Which WAN service will provide the most economical approach to meet the requirement?
• DSL
• ATM
• T1 line
• Frame Relay

18. Refer to the exhibit. The branch office needs constant access to the servers in the enterprise headquarters. Therefore, a backup Frame Relay link is added. A network
• administrator is configuring the routers in the branch office to make sure that when the backup Frame Relay link is used, only the traffic to access the enterprise headquarters is allowed. Which statement is true about the routing configuration on branch office edge routers?
• The command ip route 0.0.0.0 0.0.0.0 serial 0/0 50 should be configured on BE2.
• The command ip route 128.107.0.0 255.255.0.0 serial 0/0 50 should be configured on BE1.
• The command ip route 128.107.0.0 255.255.0.0 serial 0/0 50 should be configured on BE2.
• The command ip route 192.135.250.0 255.255.255.0 serial 0/0 50 should be configured on BE1.

19. Which two factors should be considered when designing a wireless LAN that provides seamless roaming capabilities? (Choose two.)
• use of a wireless controller to manage IP addressing
• type of routing protocols
• location of existing wired clients
• coverage
• position of MDF

20. Which statement applies to a large network with thousands of nodes?
• Each wireless phone is normally in a separate VLAN for security reasons.
• Multiple firewalls exist throughout the access layer for maximum security protection.
• Firewalls cannot be implemented in the multilayer switches and routers.
• Intrusion detection is more likely to be performed by a separate device rather than integrated into a switch or router

21. A network designer is evaluating the network security implementation for an organization. The designer recommends adding network security devices in front of the server farm, although network security devices have been deployed in the Enterprise Edge for two years. What type of attack can be effectively prevented with this recommendation?
• virus attack
• internal attack
• Internet attack
• phishing attack

22. What is the function of the access layer in the Cisco three-layer hierarchical internetworking model?
• provides QoS classification and marking
• implements a fast-converging routing protocol
• uses routed interconnections between devices
• aggregates traffic and performs route summarization

23. A network designer is selecting a WAN technology for connections between the headquarters of an organization and its branch offices. In this context, what is one advantage of choosing Frame Relay over a T1 line?
• more secure
• flexible bandwidth
• shared media across the link
• efficiency with fixed length packet size

24. on campus. The college currently has only wired network device access. Which two devices must be incorporated into the network design to best accommodate roaming for wireless IP phones?(Choose two.)
• voice VLAN capable switch
• autonomous AP
• PoE switch
• Cisco wireless LAN controller
• 2960 switch with 48 100-Mb ports
• lightweight access points

25. When considering converged network designs, it is important to identify appropriate service demands. What is a concern when preparing a network design to fit this environment?
• business data compensation for sensitivity to noise
• location and placement of firewalls
• voice-level quality of service
• security policy requirements

CCNA Discovery 1 - Module Final 2 Exam Version 4.0 Networking for Home and Small Businesses

1. Refer to the graphic. What feature can be installed on the Linksys integrated router to convert private IP addresses to Internet-routable addresses?
• authentication
• DHCP
• encryption
• firewall
• NAT
• WEP

2. Select three statements that correctly describe how DHCP services may be provided. (Choose three.)
• An integrated router provides IP configurations for most ISPs.
• An integrated router can act as both DHCP server and DHCP client.
• A home PC using a static IP address obtained that address from a DHCP server.
• Most home network integrated routers receive an IP configuration directly from their ISP.
• A variety of devices can act as DHCP servers, as long as they run DHCP service software.
• A home PC is required by standards to obtain an IP address and default gateway from a DHCP server (usually the ISP).

3. Which of the following statements best describes DNS?
• DNS servers are used to map an IP address to a physical address.
• DNS servers are used to map a name to an IP address.
• DNS servers are used to configure logical address information for host computers.
• DNS servers are used to translate from private addresses to public addresses.

4. When are leased lines typically used?
• when low bandwidth is required
• for home and small business connectivity
• when a dedicated digital data line is necessary
• as a less expensive option to cable and DSL modem service


5. Refer to the graphic. 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 wireless connection is good.
• The WEP key or SSID needs to be checked.
• The DHCP configuration on the router needs to be checked.
• The wireless NIC driver or the NIC itself needs to be reinstalled.

6. Choose the option that shows the correct sequence of steps in the encapsulation of TCP/IP data that is passed from a source to a destination host?
A. converts data to bits for transmission
B. packages the data for end to end transport
C. adds the data-link header and trailer
D. adds the network IP address to the header of the frame
• A,B,C,D
• A,C,D,B
• B,D,C,A
• B,C,D,A
• D,C,B,A

7. What are two advantages of purchasing a custom-built computer? (Choose two.)
• usually a lower cost
• no waiting period for assembly
• user can specify higher performance components
• supports higher-end graphics and gaming applications
• fewer components to replace

8. What is an ISP?
• It is a standards body that develops cabling and wiring standards for networking.
• It is a protocol that establishes how computers within a local network communicate.
• It is an organization that allows individuals and businesses to connect to the Internet.
• It is a networking device that combines the functionality of several different networking devices in one.

9. A wireless DHCP client cannot connect to the Internet through a Linksys integrated router. When you type ipconfig on the host, no IP address, subnet mask, or default gateway shows. What are two of the first things you will check? (Choose two.)
• SSID
• if the wireless client is configured for DHCP
• the cable between client and integrated router
• the firewall configuration on the integrated router
• if the correct default gateway is configured on the client
• if the correct default gateway is configured on the integrated router

10. Identify two causes of physical layer network problems. (Choose two.)
• logical addressing issues
• improperly terminated cables
• cables plugged into wrong ports
• incorrect MAC address assigned
• packets received out of sequence
• incorrect subnet mask on an interface

11. Which wireless protocol is used for encryption?
• EAP
• Open
• PSK
• WEP


12. 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

13. What is a service pack?
• an access policy
• an agreement between a company and a vendor
• a piece of code created to fix one specific problem
• a collection of patches and updates released by a vendor
• a small piece of software designed specifically for security issues

14. 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


15. Refer to the graphic. Based on the information that is shown, what statement is true?
• This configuration would be commonly found in an ad hoc wireless network.
• Any wireless client that is attached to this access point would have the same IP address and SSID.
• All wireless devices that are connected to this access point must have an assigned SSID of Academy.
• In addition to accepting wireless client requests, this access point must connect to the wired network.

16. Which of the following are transport layer protocols of the TCP/IP model? (Choose two.)
• FTP
• UDP
• SMTP
• TFTP
• TCP

17. How does a crossover cable make it possible for two "like devices" (for example, two switches) to communicate?
• The transmit pins are disconnected and only the receive pins are used.
• The transmit pins on one device are connected to the transmit pins on the other device.
• The receive pins on one device are connected to the receive pins on the other device.
• The transmit pins on one device are connected to the receive pins on the other device.

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

19. What information within a data packet does a router use, by default, to make forwarding decisions?
• the destination MAC address
• the destination IP address
• the destination host name
• the destination service requested

20. What is the name for the contract between a customer and an ISP that specifies requirements for uptime and service response time?
• DSL
• IAB
• NAP
• SLA


21. Refer to the graphic. Based on the configuration information that is shown, which three types of 802.11 networks are allowed access to the WLAN? (Choose three.)
• 802.11a
• 802.11b
• 802.11e
• 802.11g
• 802.11n
• 802.11x

22. Which installation option should be chosen when the current operating system is too damaged to work properly?
• upgrade
• multi-boot
• clean install
• virtualization

23. 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

24. What is specified by the network number in an IP address?
• the network to which the host belongs
• the physical identity of the computer on the network
• the node of the subnetwork which is being addressed
• the broadcast identity of subnetwork

25. A computer joins the network and announces itself to all hosts on the LAN. What type of message does the computer send out?
• broadcast
• simulcast
• multicast
• unicast

26. What two commands can be used to form a new binding if client information does not agree with the DHCP client table? (Choose two.)
• ipconfig /release
• ipconfig /all
• ipconfig /flushdns
• ipconfig /renew
• ipconfig

27. 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

28. What is an accurate description of network devices in the distribution layer?
• They are designed to interconnect individual hosts.
• They are designed to interconnect multiple companies.
• They are designed to interconnect local network segments.
• They are designed to switch data packets as fast as possible.

29. A network host is accessing a web server. What two protocols are most likely being used as the TCP/IP model application layer protocol and the internetwork layer protocol? (Choose two.)
• IP
• FTP
• TCP
• DHCP
• HTTP

30. For the second time in a week, workstations on a LAN are not able to log into the server. The technician fixed the problem the first time, but cannot remember the steps taken to solve it. What aspect of the troubleshooting process has the technician neglected?
• identifying the problem
• asking end-users questions
• documenting the troubleshooting process
• using structured techniques to solve a problem

31. Which three statements are true about local and network applications? (Choose three.)
• A local application is loaded in a local computer and can be accessed by a remote computer on the network.
• A network application is loaded in a local computer and accessed from a remote computer.
• A local application is loaded in a local computer and accessed only by the local computer.
• A network application is loaded in a local computer and accessed only by the local computer.
• An example of a local application is e-mail.
• An example of a network application is instant messaging.

32. Which statement is true concerning stateful packet inspection?
• Access is permitted based on IP addresses of the source and destination devices.
• Access is permitted based on the MAC addresses of the source and destination devices.
• Access is permitted only if the type of application that is attempting to reach the internal host is allowed.
• Access is permitted only if it is a legitimate response to a request from an internal host.

33. What action will a router take when it receives a frame with a broadcast MAC address?
• It will not forward the frame to another network.
• It forwards the frame back to the sending host with its IP address as a response.
• It forwards the frame out of all interfaces except the interface where the frame was received.
• It forwards the frame back out the receiving interface to insure all hosts on the local network receive it.

34. What is the default subnet mask for a class B address?
• 255.0.0.0
• 255.255.0.0
• 255.255.255.0
• 255.255.255.255

35. Which protocol is used to transfer files among network devices and perform file-management functions?
• DNS
• FTP
• HTML
• HTTP


36. Refer to the graphic. What is the purpose of assigning a Network Name of Academy?
• It identifies the wireless LAN.
• It translates IP addresses into easy-to-remember domain names.
• It encrypts data between the wireless client and the access point.
• It allows access to the AP configuration GUI by name rather than address.
• It translates an internal address or group of addresses into an outside, public address.

37. Select the connection that would require a straight-through cable.
• a switch to a hub
• a router to a switch
• a switch to a switch
• a router to a router

38. What type of computer would most likely use a docking station?
• laptop
• server
• desktop
• mainframe
• workstation


39. Refer to the graphic. What is the effect of setting the security mode to WEP on the Linksys integrated router?
• It identifies the wireless LAN.
• It allows the access point to inform clients of its presence.
• It translates IP addresses into easy-to-remember domain names.
• It encrypts data between the wireless client and the access point.
• It ensures that only authorized users are allowed access to the WLAN.
• It translates an internal address or group of addresses into an outside, public address.

40. What are two ways that a user can interact with an operating system shell? (Choose two.)
• CLI
• OS
• GUI
• NIC
• kernel

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

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

43. What are the two possible values for a digital bit? (Choose two.)
• 1
• A
• F
• #
• 9

44. 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

45. Within a local network, which two items must be unique on a computer for it to successfully connect to the network? (Choose two.)
• IP address
• subnet mask
• computer name
• default gateway address
• operating system version

46. 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.

47. 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

48. What measurement is commonly used to describe communication speed when transferring data?
• bps
• cps
• Hz
• MB

49. Which two statements correctly describe Media Access Control (MAC) addresses? (Choose two.)
• MAC addresses are used to identify a specific NIC.
• MAC addresses are physical addresses.
• MAC addresses contain a network number and unique host identification.
• MAC addresses are always assigned to network devices by a network administrator.
• MAC addresses can be dynamically assigned.

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

51. When considering the purchase of a new operating system, what is meant by "Total Cost of Ownership?"
• applications and support costs
• hardware and support costs
• hardware and software costs
• hardware, software, and support costs
• hardware, operating system, and applications costs

52. 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