Updated N10-007 CompTIA Network+ Certified Study Guide

1. A UTM is deployed on the external edge of the main corporate office. The office connects to the WAN port of the edge router. The edge router at the main office connects to the remote offices using GRE IPsec tunnels. A network administrator notices that a worm that was not detected by the UTM has spread from the remote sites into the corporate network. The UTM currently has traffic rules applied that should block the port used by the worm.

Which of the following steps would MOST likely correct this issue?

2. A technician has racked a new access switch and has run multimode fiber to a new location. After installing an extended-range 10Gb SFP in the core switch, the technician installed a 10Gb SFP in the access switch and connected the port to the new extension with a fiber jumper.

However, the link does not display, and the technician cannot see light emitting from the core switch.

Which of the following solutions is MOST likely to resolve the problem?

3. A network technician has implemented ACLs to limit access to cloud-based file storage.

Which of the following security mechanisms has the technician enforced?

4. A network technician receives a call from a user in the accounting department stating that Internet connectivity has been lost after receiving a new workstation. No other users in accounting are reporting similar issues. The network technician is able to ping the machine from the accounting department’s router, but is not able to ping the machine from the IT network.

Which of the following is MOST likely the cause?

5. A firewall administrator is implementing a rule that directs HTTP traffic to an internal server listening on a non-standard socket.

Which of the following types of rules is the administrator implementing?

6. A technician is installing a new wireless badging system on a hospital network. The requirements of the badging system are for it to have its own SSID and low power levels. The badging system has to cover 99.9% of the hospital.

Which of the following is the BEST action to take to meet the system requirements?

7. A technician attempts to replace a switch with a new one of similar model from the same vendor. When the technician moves the fiber and SFP plug, the switch does not completely boot up.

Considering that the config files are the same, which of the following is the MOST likely cause of the failure?

8. A company has hundreds of nodes on a single subnet and has decided to implement VLANs.

Which of the following BEST describes the benefit of this approach?

9. A company has completed construction of a new datacenter, and the IT staff is now planning to relocate all server and network equipment from the old site to the new site.

Which of the following should the IT staff reference to determine the location of the equipment being moved?

10. Which of the following would allow a device to maintain the same IP address lease based on the physical address of the network card?

11. A technician wants to prevent an unauthorized host from connecting to the network via Ethernet.

Which of the following is a Layer 2 access control the technician should implement?

12. A network engineer is configuring wireless access for guests at an organization. Access to other areas in the organization should not be accessible to guests.

Which of the following represents the MOST secure method to configure guest access to the wireless network?

13. The server team has just installed an application across three different servers. They are asking that all requests to the application are spread evenly across the three servers.

Which of the following should the network team implement to fulfil the request?

14. A network technician is deploying mobile phones for a company’s sales staff. Salespeople frequently travel nationally and internationally to meet with clients, and often have to roam or switch cellular providers.

Which of the following standards is the BEST option to fit the requirements?

15. A network administrator has been given a network of 172.16.85.0/21 and wants to know the usable range of IP addresses on that subnet.

Which of the following indicates the correct IP address range?

16. A network technician is troubleshooting wireless network issues in a crowded office complex and suspects there is interference from nearby wireless networks.

Which of the following should the technician perform to discover possible interference?

17. A network technician is troubleshooting an issue and has established a theory of probable cause.

Which of the following steps should the network technician take NEXT?

18. A network technician has discovered a rogue access point under an empty cubicle desk.

Which of the following should the technician perform to ensure another cannot be placed on the network?

19. Which of the following provides the ability to deploy consistent access point configurations from a central location?

20. A network technician is configuring a wireless network at a branch office. Users at this office work with large files and must be able to access their files on the server quickly.

Which of the following 802.11 standards provides the MOST bandwidth?

21. A network administrator configures a router with the following IP address information:

Gigabit Ethernet 1 Interface: 10.10.0.1/24

Serial 0 Interface: 10.10.0.253/30

Clients are connected to a switch on the gigabit Ethernet interface; the ISP is connected to the Serial 0 interface. When the router configuration is complete and client devices are reconfigured, all clients report that they are unable to connect to the Internet.

Which of the following is the MOST likely reason?

22. A penetration tester has been tasked with reconnaissance to determine which ports are open on the network.

Which of the following tasks should be done FIRST? (Choose two.)

23. Users are reporting Internet connectivity issues. The network administrator wants to determine if the issues are internal to the company network or if there is an issue with the ISP.

Which of the following tools should be used to BEST determine where the outage is occurring?

24. Which of the following security mechanisms dynamically assigns a Layer 2 address and restricts traffic only to that Layer 2 address?

25. Which of the following is a vulnerable system designed to detect and log unauthorized access?

26. According to the OSI model, at which of the following layers is data encapsulated into a packet?

27. Which of the following WAN technologies is MOST preferred when developing a VoIP system with 23 concurrent channels?

28. A junior network technician is setting up a new email server on the company network.

Which of the following default ports should the technician ensure is open on the firewall so the new email server can relay email?

29. Which of the following policies would Joe, a user, have to agree to when he brings in his personal tablet to connect to the company’s guest wireless Internet?

30. In a service provider network, a company has an existing IP address scheme.

Company A’s network currently uses the following scheme:

Company b uses the following scheme: Subnet 1: 192.168.1.50/28 The network administrator cannot force the customer to update its IP scheme. Considering this,

which of the following is the BEST way for the company to connect these networks?

31. A network engineer is designing a new network for a remote site. The remote site consists of ten desktop computers, ten VoIP phones, and two network printers. In addition, two of the desktop computers at the remote site will be used by managers who should be on a separate network from the other eight computers.

Which of the following represents the BEST configuration for the remote site?

32. A network technician is troubleshooting an end-user connectivity problem. The network technician goes to the appropriate IDF but is unable to identify the appropriate cable due to poor labeling.

Which of the following should the network technician use to help identify the appropriate cable?

33. A network technician notices the site-to-site VPN and Internet connection have not come back up at a branch office after a recent power outage.

Which of the following is an out-of-band method the technician would MOST likely utilize to check the branch office’s router status?

34. A network technician is considering opening ports on the firewall for an upcoming VoIP PBX implementation.

Which of the following protocols is the technician MOST likely to consider? (Choose three.)

35. A device operating at Layer 3 of the OSI model uses which of the following protocols to determine the path to a different network?

36. A network administrator is setting up a web-based application that needs to be continually accessible to the end users.

Which of the following concepts would BEST ensure this requirement?

37. Which of the following devices should a network administrator configure on the outermost part of

the network?

38. A company finds that many desktops are being reported as missing or lost.

Which of the following would BEST assist in recovering these devices?

39. A technician is connecting a router directly to a PC using the G1/0/1 interface. Without the use of auto-sensing ports, which of the following cables should be used?

40. A technician is diagnosing an issue with a new T1 connection. The router is configured, the cable is connected, but the T1 is down.

To verify the configuration of the router, which of the following tools should the technician use?

41. A network technician receives a call from a user who is experiencing network connectivity issues. The network technician questions the user and learns the user brought in a personal wired router to use multiple computers and connect to the network.

Which of the following has the user MOST likely introduced to the network?

42. A technician is setting up a direct connection between two older PCs so they can communicate but not be on the corporate network. The technician does not have access to a spare switch but does have spare Cat 6 cables, RJ-45 plugs, and a crimping tool. The technician cuts off one end of the cable.

Which of the following should the technician do to make a crossover cable before crimping the new plug?

43. Which of the following is the number of broadcast domain that are created when using an unmanaged 12-port switch?

44. A network engineer wants to a segment the network into multiple broadcast domains.

Which of the following devices would allow for communication between the segments?

45. The Chief Information Officer (CIO) has noticed the corporate wireless signal is available in the parking lot. Management requests that the wireless network be changed so it is no longer accessible in public areas, without affecting the availability inside the building.

Which of the following should be changed on the network?

46. A network technician is assisting the security team with some traffic captures. The security team wants to capture all traffic on a single subnet between the router and the core switch. To do so, the team must ensure there is only a single collision and broadcast domain between the router and the switch from which they will collect traffic.

Which of the following should the technician install to BEST meet the goal?

47. Based on networks 10.8.16.0/22 and 10.8.31.0/21, which of the following is the BEST summarized CIDR notation?

48. A technician discovers that multiple switches require a major update.

Which of the following policies should be followed?

49. A technician is troubleshooting a point-to-point fiber-optic connection. The technician is at a remote site and has no connectivity to the main site. The technician confirms the switch and the send-and-receive light levels are within acceptable range. Both fiber SFPs are confirmed as working.

Which of the following should the technician use to reveal the location of the fault?

50. A Chief Information Officer (CIO) wants to move some IT services to a cloud service offering.

However, the network administrator still wants to be able to control some parts of the cloud service’s networking components.

Which of the following should be leveraged to complete this task?

51. Client PCs are unable to receive addressing information from a newly configured interface on a router.

Which of the following should be added to allow the clients to connect?

52. When enabling jumbo frames on a network device, which of the following parameters is being adjusted?

53. A technician logs onto a system using Telnet because SSH is unavailable. SSH is enabled on the target device, and access is allowed from all subnets. The technician discovers a critical step was missed.

Which of the following would allow SSH to function properly?

54. A network administrator wants to ensure sensitive data is not exfiltrated from the system electronically.

Which of the following should be implemented?

55. An office network consists of one two-port router connected to a 12-port switch. A four-port hub is also connected to the switch.

On this particular network, which of the following is the number of collision domain that exist?

56. A network technician wants to remotely and securely access the desktop of a Linux workstation. The desktop is running remote control software without encryption.

Which of the following should the technician use to secure the connection?

57. Which of the following should current network performance be compared against to determine network anomalies?

58. A network administrator configures an email server to use secure protocols.

When the upgrade is completed, which of the following ports on the firewall should be configured to allow for connectivity? (Choose three.)

59. After a server outage, a technician discovers that a physically damaged fiber cable appears to be the problem. After replacing the cable, the server will still not connect to the network. Upon inspecting the cable at the server end, the technician discovers light can be seen through one of the two fiber strands.

Which of the following should the technician do FIRST to reconnect the server to the network?

60. The backups server connects to a NAS device using block-level storage over Ethernet. The performance is very slow, however, and the network technician suspects the performance issues are network related.

Which of the following should the technician do to improve performance?

61. A technician is trying to determine the IP address of a customer’s router. The customer has an IP address of 192.168.1.55/24.

Which of the following is the address of the customer’s router?

62. A network technician is able to connect the switches between two offices, but the offices cannot communicate with each other, as each office uses a different IP addressing scheme.

Which of the following devices needs to be installed between the switches to allow communication?

63. A network technician is working on a proposal for email migration from an on-premises email system to a vendor-hosted email in the cloud. The technician needs to explain to management what type of cloud model will be utilized with the cloud-hosted email.

Which of the following cloud models should the technician identify in the proposal?

64. Which of the following is the correct port number for NTP?

65. A network technician is connecting two switches together.

Which of the following protocols should the technician use to increase speed and fault tolerance?

66. A company has a web-based application that is used by many different departments. The company has experienced some overload of resources on the database server. The network administrator implements a network device in between the servers and the database.

Which of the following BEST describes the purpose of this device?

67. A technician is replacing a switch at a branch office and discovers the existing backbone cable does not fit in the new switch. The fiber patch panel has circular connections. The new switch has a transceiver that accepts a smaller square adapter of two strands.

Which of the following patch cables would the technician need to complete the installation?

68. A computer lab on a campus network was recently reconfigured using recycled network cables. One of the 24 computers in the lab is unable to connect to the network after the upgrade. A network technician successfully uses the cable in question to connect directly to another computer.

Which of the following is MOST likely issue with the cable?

69. Which of the following is a reason why a business may be hesitant to move sensitive data to a SaaS cloud service?

70. Users have been experiencing slow network response times, and management has asked the network technician to provide evidence of network improvement.

After optimizing the network, which of the following would be required?

71. A network technician has created a network that consists of a router, a firewall, a switch, and several PCs.

Which of the following physical network topologies was created?

72. A technician is setting up a branch office on a point-to-point connection.

Which of the following IP network blocks is the MOST efficient use of IP address space for the router connections between the two sites?

73. A technician is upgrading the firmware on an older KVM switch. The specifications call for a serial port to connect to the computer on one side, and an Ethernet jack to connect to the switch on the other side.

Which of the following connectors does the technician need for this cable? (Choose two.)

74. An end-user device requires a specific IP address every time it connects to the corporate network; however, corporate policy does not allow the use of static IP addresses.

Which of the following will allow the request to be fulfilled without breaking the corporate policy?

75. A technician is planning a remote-access strategy to manage routers and switches on a dedicated management network. The management network is segregated from the production network and uses site-to-site VPN connections. Some of the equipment does not support encryption.

Which of the following should the technician choose that all the equipment would support?

76. Which of the following protocols do MOST MITM attacks utilize?

77. An ISP technician gets a call from a business that just changed equipment but can no longer connect to the Internet. The technician checks the ARP table on the ISP switch, and there is no corresponding MAC address present. Instead, the entry is “Incomplete”.

Which of the following could cause this condition?

78. A systems administrator has recently purchased and installed a large electronic signage screen for the company’s parking garage. The screen’s management software was installed on a server with public IP address to allow remote management. The systems administrator is now troubleshooting an issue with the screen displaying unknown, random, and inappropriate messages.

Which of the following is MOST effective in resolving this issue?

79. A technician is investigating a server performance issue. The technician has gathered the server utilization statistics.

Which of the following should the technician use to determine which statistics are not in the normal range?

80. Which of the following devices, if implemented, would result in decreased administration time of an 802.11 network running centralized authentication services? (Choose two.)

81. A technician must determine if a web page user’s visits are connecting to a suspicious website’s IP address in the background.

Which of the following tools would provide the information on TCP connections?

82. An administrator is moving to a new office. There will be several network runs through the ceiling area of the office.

Which of the following is the BEST to utilize in these areas?

83. A network technician receives a spool of Cat 6a cable and is asked to build several cables for a new set of Ethernet runs between devices.

Which of the following tools are MOST likely needed to complete the task? (Choose three.)

84. As part of a transition from a static to a dynamic routing protocol on an organization’s internal network, the routing protocol must support IPv4 and VLSM.

Based on those requirements, which of the following should the network administrator use? (Choose two.)

85. A telecommunications provider has just deployed a new OC-12 circuit at a customer site. While the circuit showed no errors from the provider end to the customer’s demarcation point, a network administrator is trying to determine the cause of dropped packets and errors on the circuit.

Which of the following should the network administrator do to rule out any problems at Layer 1? (Choose two.)

86. A single PRI can deliver multiple voice calls simultaneously using which of the following Layer 1 technologies?

87. A network technician is diagnosing a time-out issue generated from an end user’s web browser. The web browser issues standard HTTP get and post commands to interact with the website. Given this information, the technician would like to analyze the entire TCP handshake of the HTTP requests offline.

Which of the following tools would allow the technician to view the handshake?

88. A customer cannot access a company’s secure website.

The company’s network security is reviewing the firewall for the server and finds the following output:

Which of the following changes should be made to allow all customers to access the company’s secure website?

89. Which of the following MUST be implemented to share metrics between routing protocols within the same router?

90. An engineer is reviewing the implementation requirements for an upcoming project.

The basic requirements identified by the customer include the following:

– WLAN architecture supporting speeds in excess of 150 Mbps

– Clientless remote network access

– Port-based network access control

Which of the following solution sets properly addresses all of the identified requirements?

91. Which of the following is used to classify network data for the purpose of providing QoS?

92. A network technician needs to separate a web server listening on port 80 from the internal LAN and secure the server from the public Internet. The web server should be accessible to the public Internet over port 80 but not the private LAN.

Currently, the network is segmented with a network-based firewall using the following IP addressing scheme on each interface:

Which of the following ones should the technician use to place the web server and which of the following firewall rules should the technician configure?

93. A company recently upgraded all of its printers to networked multifunction devices. Users can print to the new devices, but they would also like the ability to scan and fax files from their computers.

Which of the following should the technician update to allow this functionality?

94. A disgruntled employee executes a man-in-the-middle attack on the company network. Layer 2 traffic destined for the gateway is redirected to the employee’s computer.

This type of attack is an example of:

95. The process of attempting to exploit a weakness in a network after being given permission by the company is known as:

96. A company has contracted with an outside vendor to perform a service that will provide hardware,

software, and procedures in case of a catastrophic failure of the primary datacenter. The Chief Information Officer (CIO) is concerned because this contract does not include a long-term strategy for extended outages.

Which of the following should the CIO complete?

97. A typical cell tower will have microwave and cellular antennas.

Which of the following network topologies do these represent? (Choose two.)

98. A network administrator has a monitoring system in place that is currently polling hundreds of network devices at regular intervals. The continuous polling is causing high CPU utilization on the server.

Which of the following tasks should the administrator perform to resolve the CPU issue while maintaining full monitoring capabilities?

99. A contractor is setting up and configuring conference rooms for a convention. The contractor sets up each room in the conference center to allow wired Internet access going to individual tables. The contractor measured the distance between the hotel’s patch panel to the jack, and the distance is within Cat 5e specifications. The contractor is concerned that the room will be out of specification if cables are run in each room from the wall jacks.

Which of the following actions should the contractor take to ensure the cable runs meet specifications and the network functions properly?

100. Users are reporting their network is extremely slow. The technician discovers pings to external host have excessive response times.

However, internal pings to printers and other PCs have acceptable response times.

Which of the following steps should the technician take NEXT?