CompTIA N+ N10 009 (Q 154 - Q 205)

A network administrator installed a new VLAN to the network after a company added an additional

floor to the office. Users are unable to obtain an IP address on the new VLAN, but ports on existing

VLANs are working properly. Which of the following configurations should the administrator update?

• Scope size

• Address reservations

• Lease time

• IP helper

An organization wants to ensure that incoming emails were sent from a trusted source. Which of the

following DNS records is used to verify the source?

• TXT

• AAAA

• CNAME

• MX

A small business is deploying new phones, and some of the phones have full HD videoconferencing

features. The Chief Information Officer (CIO) is concerned that the network might not be able to

handle the traffic if it reaches a certain threshold. Which of the following can the network engineer

configure to help ease these concerns?

• A VLAN with 100Mbps speed limits

• An IP helper to direct VoIP traffic

• A smaller subnet mask

• Full duplex on all user ports

A user's VoIP phone and workstation are connected through an inline cable. The user reports that the

VoIP phone intermittently reboots, but the workstation is not having any network-related issues

Which of the following is the most likely cause?

• The PoE power budget is exceeded.

• Port security is violated

• The signal is degraded

• The Ethernet cable is not working

A technician is troubleshooting a computer issue for a user who works in a new annex of an office

building. The user is reporting slow speeds and intermittent connectivity. The computer is connected

via a Cat 6 cable to a distribution switch that is 492ft (150m) away. Which of the following should the

technician implement to correct the issue?

• Increase the bandwidth allocation to the computer.

• Install an access switch in the annex and run fiber to the distribution switch.

• Run a Cat 7 cable from the computer to the distribution switch.

• Enable the computer to support jumbo frames.

A network administrator is deploying a new switch and wants to make sure that the default priority

value was set for a spanning tree. Which of the following values would the network administrator

expect to see?

• 4096

• 8192

• 32768

• 36684

Which of the following most likely determines the size of a rack for installation? (Select two).

• KVM size

• Switch depth

• Hard drive size

• Cooling fan speed

• Server height

Which of the following technologies is the best choice to listen for requests and distribute user traffic

across web servers?

• Router

• Switch

• Firewall

• Load balancer

Users usually use RDP to connect to a terminal server with hostname TS19 that points to

10.0.100.19. However, users recently have been unable to connect to TS19. The technician pings

10.0.100.19 and gets an unreachable error. Which of the following is the most likely cause?

• The users are on the wrong subnet

• The DHCP server renewed the lease.

• The IP address was not reserved

• The hostname was changed

An IT department asks a newly hired employee to use a personal laptop until the company can

provide one. Which of the following policies is most applicable to this situation?

• IAM

• BYOD

• DLP

• AUP