Question 1

Ann, a network technician, has just installed a fiber switch in a datacenter. To run the fiber cabling, Ann plans the cable route over the top of the rack using the cable trays, down to the switch, coiling up any excess cable. As Ann configures the switch, she notices several messages in the logging buffer stating the receive signal of the SFP is too weak. Which of the following is MOST likely the cause of the errors in the logging buffer?

Accepted Answer

Exceeding the bend radius of fiber optic cables can cause signal loss or attenuation, leading to a weak receive signal.

Question 2

An ISP technician frequently needs to administer a router remotely in the event of a configuration error or WAN outage. Which of the following technologies would facilitate the required connectivity?

Accepted Answer

The answer of An ISP technician frequently needs to administer...

Question 3

A network administrator needs to access a remote site and log into the site switch using secure methods. The administrator first has to gain access to the server GUI. Which of the following access control methods will be used?

Accepted Answer

RDP (Remote Desktop Protocol) is used to access the server GUI remotely, allowing the administrator to interact with the server's desktop environment securely.

Question 4

A network technician is troubleshooting a laptop that does not have wireless connectivity. The technician determines the wireless network is functioning as expected. The laptop does not show any SSIDs or allow the technician to modify network settings. Which of the following should the technician check FIRST?

Accepted Answer

The technician should first ensure that the wireless capability is enabled on the laptop, as this is a common reason for not seeing any SSIDs or being unable to modify network settings.

Question 5

Which of the following would MOST likely provide continuous power during a short brownout?

Accepted Answer

An Uninterruptible Power Supply (UPS) is designed to provide immediate backup power to connected devices during short power interruptions like brownouts, ensuring continuous operation.

Question 6

A new employee is unable to access any network resources. All other users are able to access the network at 100Mbps. No IP address, subnet mask, or default gateway is displayed on the new employee's workstation. The network administrator reterminates all connectors using the correct standard. Upon further investigation, the network administrator also notices the following: Wire map results from the user patch cable to the patch cable connecting to the switch: Pins 5 and 7 are short. The distance is 200ft (61m). Additional observations on the switch: The VLAN is set correctly. The port is not disabled. The duplex/speed settings are correct. Port LEDs are off for that port. The port is set to untagged. Which of the following is the MOST likely reason the new employee is having network issues?

Accepted Answer

The answer of A new employee is unable to access...

Question 7

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?

Accepted Answer

A hub operates at the physical layer and creates a single collision and broadcast domain, allowing all traffic on the subnet to be captured.

Question 8

A VoIP device is not getting power at a new user's desk. The technician tests the components with a PoE injector at the switch and resolves the issue. Which of the following is the MOST likely cause of the issue?

Accepted Answer

The issue was resolved with a PoE injector, indicating that the original problem was likely a damaged cable that was not delivering power to the VoIP device.

Question 9

A network technician needs a secure way to access a router in another country. Which of the following methods would meet this requirement?

Accepted Answer

SSH (Secure Shell) provides a secure method for remote access to network devices, encrypting the connection to protect data from interception.

Question 10

A user is reporting poor network performance. A network technician starts by looking at port statistics on that user's connected switchport. The technician notices there is a high level of collisions on the port. Which of the following is the MOST likely cause?

Accepted Answer

Collisions are typically caused by half-duplex settings, where both sending and receiving cannot occur simultaneously, leading to network performance issues.

Question 11

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?

Accepted Answer

A performance baseline is required to compare the network's performance before and after optimization to provide evidence of improvement.

Question 12

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 domains that exist?

Accepted Answer

The answer of An office network consists of one two-port...

Question 13

A network technician configures a firewall's ACL to allow outgoing traffic for several popular services such as email and web browsing. However, after the firewall's deployment, users are still unable to retrieve their emails. Which of the following would BEST resolve this issue?

Accepted Answer

Ports 110 and 143 are used for retrieving emails via POP3 and IMAP, respectively. Allowing inbound traffic on these ports would enable email retrieval.

Question 14

A network administrator has been experiencing slow performance and file errors when attempting to utilize server utilities. The administrator needs to ensure the system files on the server have not been modified. Which of the following should be used to ensure the server files have not been compromised?

Accepted Answer

File hashes can be used to verify the integrity of files by comparing the current hash value of a file to a known good hash value. If the hashes match, the file has not been modified.

Question 15

A wireless network is set up in a mesh configuration that has experienced recent growth. Some of the access points are four hops away in the mesh network. Users at these access points are reporting slow download speeds despite being the sole users on the access point. Which of the following would BEST resolve this issue?

Accepted Answer

Physically connecting more access points can reduce the number of hops required for data to travel, improving speed and performance in a mesh network.

Question 16

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.)

Accepted Answer

A loopback at the demark and router will test the link between the two devices and ensure that there are no errors on the physical layer. An OTDR (Optical Time Domain Reflectometer) can be used to validate the integrity of the cable by sending a light pulse down the cable and measuring the reflections.

Question 17

A network technician is asked to perform an unfamiliar task. Which of the following would the technician MOST likely reference?

Accepted Answer

Work instructions provide step-by-step guidance on how to perform specific tasks, making them the most likely reference for an unfamiliar task.

Question 18

A network administrator is creating a new WLAN that should only be used by legacy devices that do not support a secure method of authentication. Which of the following should be configured to provide connectivity and minimal security to the new network? (Choose two.)

Accepted Answer

A pre-shared key provides a basic level of security suitable for legacy devices, while MAC filtering can add an additional layer of access control by allowing only specific device MAC addresses to connect.

Question 19

A company wants to provide its sales representatives with an easy-to-use method of securely connecting to the corporate network from any client network. Which of the following methods should the network technician implement?

Accepted Answer

An SSL VPN provides a secure and user-friendly method for remote access, allowing sales representatives to connect to the corporate network securely from any location.

Question 20

A technician needs to connect several computers in close proximity to control manufacturing equipment in a factory. The medium to connect the computers must be cost effective and suitable for short distances. Which of the following mediums should the technician use?

Accepted Answer

BNC connectors are commonly used with RG-59 cable for short-distance connections, making it suitable for connecting computers in close proximity.

Exam 10: CompTIA Network+