Question 1

A help desk technician is assisting a user who is experiencing issues with video conferencing when a laptop is undocked. During meetings, the audio becomes garbled, and the video sometimes pauses for brief periods. Which of the following is the MOST probable cause of these issues?

Accepted Answer

A)  Overcapacity 
B)  Channel overlap 
C)  Frequency mismatch 
D)  Latency

Question 2

Which of the following properties should be configured to extend logical network separation on an uplink interface to a second switch?

Accepted Answer

A)  802.1Q trunking 
B)  Multiple untagged ports 
C)  Port mirroring 
D)  Management VLAN

Question 3

A network technician is working on a new switch implementation to expand the network. Which of the following is the BEST option to ensure the implementation goes according to business requirements?

Accepted Answer

A)  AUP 
B)  NDA 
C)  SOP 
D)  SLA

Question 4

A network technician notices that most of the nodes in the 10.10.74.0/23 address space return either 1 or 2 node hop after running a tracert ; however, some of the new servers are showing a hop count larger than 10. Which of the following is the MOST likely reason for this?

Accepted Answer

A)  New servers are being provisioned in the cloud. 
B)  Those servers have host-based firewalls. 
C)  Some of the servers are configured to use different gateways. 
D)  Part of the subnet is configured to use different VLANs.

Question 5

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?

Accepted Answer

A)  Use a pre-shared key. 
B)  Set up EAP. 
C)  Configure RADIUS. 
D)  Configure MAC filtering.

Question 6

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?

Accepted Answer

A)  Perform antivirus and anti-malware scans of the file. 
B)  Perform a hash on the file for comparison with the vendor's hash. 
C)  Download the file a second time and compare the version numbers. 
D)  Compare the hash of the file to the previous firmware update.

Question 7

A network technician is investigating why a user cannot print to the network printer. The technician wants to determine if anything has changed. Which of the following actions would be the BEST example of this troubleshooting step?

Accepted Answer

A)  Attempt to log in from another computer with the user's credentials. 
B)  Log into the switch and reconfigure the printer port. 
C)  Review the maintenance logs from the night before. 
D)  Reinstall print drivers on the user's machine.

Question 8

Which of the following technologies is used to translate one public IP address to multiple private IP addresses?

Accepted Answer

A)  NAT 
B)  ARP 
C)  DHCP 
D)  DNS

Question 9

A technician is setting up VoIP phones on a wireless network. Users report that calls are choppy and sometimes dropped. The technician has measured two characteristics using simple command-line tools that verify the problem. Which of the following characteristics did the technician measure? (Choose two.)

Accepted Answer

A)  Reflection 
B)  Latency 
C)  Interference 
D)  Packet loss 
E)  Signal-to-noise ratio
F) Attenuation

Question 10

Which of the following is used to define the duration during which a client can use an IP address?

Accepted Answer

A)  MAC reservation 
B)  IP helper 
C)  Pool 
D)  Lease time

Question 11

Joe, a user, is having issues when trying to access certain web pages. Upon navigating to a web page, it seems like it connects, but then presents the following message: The security certificate presented by this website was not trusted by a trusted certificate authority. Joe has cleared his cache and cookies, rebooted his machine, and attempted to browse to the website from a coworker's desktop, but it still presented with this error. Which of the following is the MOST likely cause of this error?

Accepted Answer

A)  The web server is missing an intermediate certificate. 
B)  The website is missing an HTTPS certificate. 
C)  TLS is not enabled in the browser. 
D)  The SSL certificate has expired.

Question 12

A network engineer arrives at work and discovers that many users are having problems when attempting to connect to the company network shared drives. The network operations center (NOC) technician just completed server upgrades the night before. To which of the following documents should the NOC technician refer to determine what potentially caused the connectivity problem?

Accepted Answer

A)  Network maps 
B)  Cable management 
C)  Release notes 
D)  Change management

Question 13

A wireless access point that was working in a large warehouse last week is now offline. The technician observes there is no power to the device. The technician verifies PoE is working on the switchport, and then confirms the wireless access point is still not powering up. Which of the following is the MOST likely issue?

Accepted Answer

A)  Attenuation 
B)  Incorrect pin-out 
C)  Damaged cable 
D)  Switch misconfiguration

Question 14

At which of the following OSI model layers does the Layer 2 Tunneling Protocol operate?

Accepted Answer

A)  Application 
B)  Session 
C)  Transport 
D)  Data link

Question 15

Which of the following protocols do MOST MITM attacks utilize?

Accepted Answer

A)  ARP 
B)  SIP 
C)  FTP 
D)  SCP

Question 16

Which of the following is an IPv6 transition mechanism in which network devices utilize IPv4 and IPv6 at the same time?

Accepted Answer

A)  6to4 
B)  ISATAP 
C)  Teredo 
D)  Dual stack

Question 17

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?

Accepted Answer

A)  Single-mode fiber-optic cabling 
B)  Cat 5e-rated cabling 
C)  Cat 6-rated cabling 
D)  Plenum-rated cabling

Question 18

Which of the following would block access to an untagged port when connected to a Layer 2 device?

Accepted Answer

A)  BPDU guard 
B)  Spanning tree 
C)  Flood guard 
D)  Root guard

Question 19

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?

Accepted Answer

A)  Perform file hashing 
B)  Generate new keys 
C)  Update firmware 
D)  Change default credentials

Question 20

A server administrator is building an email server. To protect the corporate/internal network from external users, the email server should be placed:

Accepted Answer

A)  on the intranet. 
B)  in a subnet isolated from the internal network. 
C)  on the company LAN segment. 
D)  in the DMZ.

Exam 10: CompTIA Network+