A PC technician has installed a new network printer that was preconfigured with the correct static IP address, subnet mask, and default gateway. The printer was installed with a new cable and appears to have link activity, but the printer will not respond to any network communication attempts. Which of the following is MOST likely the cause of the problem?
A. Damaged cable B. Duplex mismatch C. Incorrect VLAN assignment D. Speed mismatch
Correct Answer: C
Explanation: If a port is accidentally assigned to the wrong VLAN in a switch, it’s as if that client was magically transported to another place in the network. This would explain the inability to communication with the printer, as it is on a different VLAN.
Which of the following should a technician implement to prevent external contractors from physically plugging devices into the company’s network jacks unless such jacks are designated for guest use?
A. Disable DHCP and assign a static IP address to each network device physically connected to the network. B. Enable MAC address filtering across all network jacks and record the MAC address of guest devices. C. Disable all switch ports when they are not utilized and enable them on an as needed basis. D. Place guest network jacks in public areas and all other jacks in secure areas as needed.
A user states that they cannot connect to the network or the Internet. The technician determines the issue is that the computer has a static IP address and needs to use DHCP to work correctly. The technician sets the NIC to automatically assign an IP address. Which of the following should the technician perform NEXT?
A. Identify the type of network card and what Operating System the computer is running B. Confirm the computer is back on the network and has Internet connectivity C. They need to annotate what the static IP address was and inform the employees manager D. They need to determine why the NIC was assigned a static IP address
A technician has been dispatched to a SOHO to troubleshoot an issue with a USB printer shared on the network. All networked devices obtain their IP address automatically from the router. Additionally, all computers were printing fine the previous day, when the printer was first installed. Which of the following should the technician implement to fix the printing issue?
A. A DHCP reservation should be made for the host computer. B. The printer should be connected to a USB hub. C. An updated printer driver should be installed on all office computers. D. The printer should be configured with a static IP address.
A technician is called into an office where multiple users are reporting duplicate IP address errors. Upon arrival, the technician skims notes from the previous technician who serviced the office and finds that DHCP functionality was disabled on the internal router. Which of the following explanations is MOST likely the issue?
A. The previous technician turned off DHCP to free up resources for QoS functionality. B. The previous technician decided to use DNS instead of DHCP for handling IP addresses. C. The previous technician moved the office to a mismanaged static IP address setup. D. The previous technician did not setup DHCP reservations properly and therefore the router is giving multiple users the same IP.
A SOHO has had several issues with various unauthorized devices consuming the network’s bandwidth. There are only four network devices that are authorized to access the Internet as well as the local LAN’s resources. Which of the following security implementations would MOST likely help disable network access to the unauthorized devices?
A. Using complex passwords B. Disabling the use of static IP addresses C. Disabling ports D. MAC filtering
A technician enabled remote management on the small office WAP to manage this device from another location. Users are reporting that the WAP has changed its SSID without anyones knowledge. Which of the following would prevent this from occurring?
A. Change to user MAC filtering B. Change default usernames and passwords C. Disable the SSID from broadcasting D. Enable static IP addresses