N10-007 : CompTIA Network+ : Part 10

N10-007 : CompTIA Network+ : Part 10

NS – Modules 20 – 22

1. A switch has detected duplicate broadcast messages sourced from a second port. The broadcasts continue to be transmitted and duplicated until the amount of traffic causes severe performance issues. Which of the following should be configured to prevent this behavior?

   • BPDU guard
   • DHCP snooping
   • ARP protection
   • Spanning tree

2. A Chief Information Officer (CIO) is concentrated about an attacker gaining administrative access to the company’s network devices. Which of the following is the MOST secure way to prevent this?

   • ACL allowing only HTTP
   • ACL allowing only Telnet
   • Out-of-band modem
   • Out-of-band console router

3. The Chief Executive Officer’s (CEO’s) tablet cannot connect to the wireless network from the corner office. A network technician verified the tablet can connect to the wireless network in other areas of the building. The distance between the office and the 802.11ac WAP is 150ft (46m), and there are a few cubicles in between. Which of the following is the MOST likely cause of the tablet not connecting?

   • Absorption
   • Reflection
   • Distance
   • Refraction
   • Attenuation

4. A company has two geographically separate locations that need to connect using a VPN. Which of the following devices must be specifically configured to allow VPN traffic into the network?

   • Firewall
   • Switch
   • Router
   • Modem

5. A technician is working on a new machine that has been procured for testing and development. The machine will run a hypervisor and host several operating systems of various types so the development team can test the company’s applications in a variety of environments. The technician wants the virtual machines to be available to communicate with each other without leaving the hypervisor. Which of the following is the BEST solution to the problem?

   • The technician should connect the machine to its own separate switch.
   • The technician should add a route in each virtual machine to the default gateway.
   • The technician should configure a virtual switch.
   • The technician should set up individual routes between the machines.

6. A network technician is repurposing a switch that has been in storage for some time. The device has been wiped to factory defaults. Which of the following should be done FIRST to ensure the device has been hardened before configuration?

   • Generate new keys.
   • Disable unused ports.
   • Check for updated firmware.
   • Configure the default VLAN.

7. A technician is setting up a wireless access point in a coffee shop. The shop is not concerned with security but only wants to allow customers to have access. Which of the following configurations should the technician deploy?

   • Use a pre-shared key.
   • Set up EAP.
   • Configure RADIUS.
   • Configure MAC filtering.

8. A network administrator is assigned to run and connect a Cat 6e Ethernet cable between two nodes in a datacenter. Which of the following connector types should the network administrator use to terminate this cable?

   • DB-9
   • RS-232
   • DB-25
   • RJ-45

9. Management has requested that services be available within 72 hours of a disaster. Budget is a major concern. A contract is signed with a company that has plenty of space, and the technician will have the option of putting infrastructure equipment in place. Which of the following BEST describes this business continuity strategy?

   • Cold site
   • Differential backup
   • Hot site
   • Incremental backup
   • Warm site
   • Full backup

10. A network technician is planning to update the firmware on a router on the network. The technician has downloaded the file from the vendor’s website. Before installing the firmware update, which of the following steps should the technician perform to ensure file integrity?

    • Perform antivirus and anti-malware scans of the file.
    • Perform a hash on the file for comparison with the vendor’s hash.
    • Download the file a second time and compare the version numbers.
    • Compare the hash of the file to the previous firmware update.

11. A network technician performs a wireless site survey at a company building and identifies that the cafeteria is not covered by a wireless signal. The cafeteria is located in a medium-size, square-shaped room. Which of the following types of WAP antenna should the technician install in the center of the cafeteria to provide the BEST coverage?

    • Unidirectional
    • Parabolic
    • Omnidirectional
    • Yagi

12. An entire enterprise cannot access a specific website. The network technician knows the website was accessible last week. The technician can also ping the website. Which of the following is the technician MOST likely to find upon investigation?

    • The firewall is misconfigured.
    • The network is being hit by a zero-day attack.
    • The SSL certificate is untrusted.
    • The SSL certificate has expired.

13. At which of the following OSI model layers would a router operate?

    • Physical
    • Network
    • Transport
    • Data link

14. Which of the following are DNS record types? (Choose three.)

    • CNAME
    • NTP
    • PTR
    • LDAP
    • DHCP
    • TTL
    • SRV
    • SSH

15. Which of the following backup techniques is used to capture all the data that has changed since the last full backup?

    • Incremental
    • Replica
    • Differential
    • Snapshot

16. A network administrator frequently needs to assist users with troubleshooting network hardware remotely, but the users are non-technical and unfamiliar with network devices. Which of the following would BEST help the administrator and users during hands-on troubleshooting?

    • Logical diagrams
    • MDF documentation
    • Equipment labeling
    • Standard operating procedures

17. A technician is observing brownout issues at a smaller office. At least once a week, the edge switch power cycles. Which of the following should the technician do to resolve the issue?

    • Install a new switch
    • Install a UPS
    • Replace the switch uplink cable.
    • Install a new electrical circuit.

18. A technician is troubleshooting a workstation’s network connectivity and wants to confirm which switchport corresponds to the wall jack the PC is using. Which of the following concepts would BEST help the technician?

    • Consistent labeling
    • Change management
    • Standard work instructions
    • Inventory management
    • Network baseline

19. Under which of the following layers of the OSI model do ATM cells operate?

    • Data link
    • Network
    • Session
    • Transport
    • Presentation

20. A new building needs to be joined to an existing network, but management has decided that running fiber is too expensive. Since the buildings are about 1000ft (305m) apart, the IT department has been asked to propose alternatives. Which of the following is the BEST device to add to each building to facilitate the extension of the network while meeting budgetary demands?

    • Switch
    • Router
    • Media converter
    • PRP wireless

NS – Modules 20 – 22