QUESTION 81
After a laptop screen has been replaced, the laptop is having Wi-Fi connectivity issues. No SSIDs are discovered. Bluetooth and Ethernet are working. Which of the following should a technician investigate first?
A. Wireless card
B. Wireless antenna
C. Wireless AP
D. Network interface card
E. Motherboard
Correct Answer: B
QUESTION 82
Which of the following describes the concept of virtualization in computing?
A. Installing software that monitors system performance
B. Running multiple systems on the same hardware
C. Replacing older hardware with newer models
D. Converting software to be compatible with all operating systems
Correct Answer: B
QUESTION 83
An end user is having trouble printing from an application. The text on the page is unreadable. However, the application prints successfully from a newer computer. Which of the following should be done next?
A. Reinstall the printer.
B. Adjust the print tray.
C. Update the printer driver.
D. Change the toner.
Correct Answer: C
QUESTION 84
A user’s laptop keyboard is distorted and is no longer flat. Which of the following components most likely failed?
A. Battery
B. RAM
C. Keyboard
D. HDD
Correct Answer: A
QUESTION 85
A mobile device user reports that they must put their smartphone on low-power mode or it will not stay charged for the entre work day and they can only charge it using inductive charging. They also report that transferring data to and from the cloud works perfectly. Which of the following are the most likely causes of the issue? (Select two).
A. Damaged port
B. Improper charging
C. Malware
D. Degraded performance
E. Poor battery health
F. Overheating
Correct Answer: AE
QUESTION 86
A technician is installing an expansion card on a desktop computer to provide internet access. Which of the following expansion cards should the technician use?
A. GPU
B. NIC
C. Sound
D. Capture
E. PCIe
Correct Answer: B
QUESTION 87
Which of the following protocols stores data on the server during the email retrieval process?
A. SMTP
B. HTTP
C. POP3
D. IMAP
Correct Answer: D
QUESTION 88
Which of the following wireless frequency ranges is least likely to be affected by obstructions in the signal path?
A. 2.4GHz
B. 4.9GHz
C. 5GHz
D. 6GHz
Correct Answer: A
QUESTION 89
A technician connects a WISP modem to a portable router in order to provide an Ethernet connection to a laptop. Which of the following network types has the technician configured?
A. WAN
B. SAN
C. PAN
D. MAN
Correct Answer: A
QUESTION 90
Which of the following should a technician use in DNS to map a device to an IPv6 address?
A. A
B. CNAME
C. AAAA
D. MX
Correct Answer: C
QUESTION 91
A developer wants to virtualize an entire operating system but does not have the resources to dedicate an entire machine to this purpose. Which of the following technologies best meets this requirement?
A. Type 2 hypervisor
B. Container
C. Platform as a service
D. Virtual network computer
Correct Answer: A
QUESTION 92
After a technician restarts a SOHO wireless router, some office computers function properly, but some can no longer send or receive traffic. A technician verifies that all network devices have the 192.168.1.X subnet. Which of the following should the technician do next?
A. Check the firmware version update.
B. Check that the default gateway is correct.
C. Check for duplicate IP addresses.
D. Check the router firewall rules.
Correct Answer: C
QUESTION 93
A company wants to have multiple aliases for a website in their domain. Which of the following should the company use?
A. CNAME
B. MX
C. DKIM
D. TXT
Correct Answer: A
QUESTION 94
Which of the following networking technologies offers the ability to connect multiple audio devices simultaneously?
A. Radio-frequency identification
B. Near-field communication
C. 802.11ax
D. Bluetooth
Correct Answer: D
QUESTION 95
A user is trying to present a video in a conference room. The video appears when the user connects the computer to the TV display with an HDMI cable. However, there is no sound coming through. The computer and TV volumes are at 50%. Which of the following should the user perform next?
A. Adjust the volume settings.
B. Swap the HDMI cable.
C. Reinsert the HDMI cable.
D. Verify the audio output assignment.
Correct Answer: D
QUESTION 96
Which of the following is the best to use for centralized storage of events from networking equipment?
A. SCADA
B. Syslog
C. Fileshare
D. IoT
Correct Answer: B
QUESTION 97
Which of the following is a reason why a company would configure a DMARC record?
A. A DMARC record allows email to be authenticated for a domain.
B. A DMARC record gives instructions for what to do with unauthenticated emails.
C. A DMARC record displays the domains that are allowed to send emails as other domains.
D. A DMARC record maps a subdomain alias to a true name.
Correct Answer: B
QUESTION 98
Which of the following should a developer use to test and build new applications?
A. Sandbox
B. SaaS
C. Cross-platform virtualization
D. Hypervisor
Correct Answer: A
QUESTION 99
Which of the following is used to install a network device when electrical outlets are unavailable?
A. WWAN
B. ONT
C. NFC
D. PoE
Correct Answer: D
QUESTION 100
A student configures a wireless SOHO network to connect four laptops and one multifunction printer. All laptops must have internet access and be able use the multifunction printer. Which of the following settings must the student apply to ensure that the printer is always available for the laptops?
A. Configure dynamic IPs for the laptops and a static IP for the printer on the same subnet.
B. Manually assign IP addresses to the laptops and printer based on the public IP assigned by the ISP.
C. Use APIPA to connect the laptops and connect the printer to the ISP router.
D. Use dynamic IP addresses from the ISP router on all the devices.
Correct Answer: A