What type of backlight is used in an LED display?
Correct answer(s):
- LED
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What is the purpose of a digitizer in a mobile device?
Correct answer(s):
- to convert user touch actions to digital input signals
Which laptop component is commonly found in the laptop lid?
Correct answer(s):
- Wi-Fi antenna
What device setting is used to share the cellular WAN connection of a phone in order to allow other devices to connect to the Internet?
Correct answer(s):
- mobile hotspot
What is a characteristic of laptop motherboards?
Correct answer(s):
- Laptop motherboards are proprietary.
Which protocol can be used to transfer messages from an email server to an email client?
Correct answer(s):
- POP3
What is a design consideration for mobile CPUs used in laptops compared with desktop CPUs?
Correct answer(s):
- They require smaller cooling mechanisms than desktops do.
Which type of RAM modules are designed for the space limitations of laptops?
Correct answer(s):
- SODIMMs
A customer brings a laptop into a computer repair shop. The technician can tell that the laptop is powered on by the power light, but nothing displays on the screen. What are two possible issues that could cause this symptom? (Choose two.)
Correct answer(s):
- The laptop has gone into sleep mode.
- The screen cutoff switch needs cleaning or is damaged.
What are two methods typically used on a mobile device to provide internet connectivity? (Choose two.)
Correct answer(s):
- cellular
- Wi-Fi
Which network protocol is used to automatically assign an IP address to a computer on a network?
Correct answer(s):
- DHCP
Port triggering has been configured on a wireless router. Port 25 has been defined as the trigger port and port 113 is an open port. What effect does this have on the network traffic?
Correct answer(s):
- All traffic that is sent out to port 25 will open port 113 to allow inbound traffic into the internal network through port 113.
A technician is troubleshooting a problem where the user claims access to the Internet is not working, but there was access to the Internet the day before. Upon investigation, the technician determines that the user cannot access the network printer in the office either. The network printer is on the same network as the computer. The computer has 169.254.100.88 assigned as an IP address. What is the most likely problem?
Correct answer(s):
- The computer cannot communicate with a DHCP server.
A group of users is unable to connect to the network. When testing several of the PCs and issuing the command ipconfig, the technician notices that all of them have an IP address in the 169.254.x.x range. What is the most likely cause of this problem?
Correct answer(s):
- The DHCP server is not operational.
What security technique could provide secure access to a server located in a small office without the expense of implementing a DMZ or purchasing a hardware firewall?
Correct answer(s):
- implement port forwarding
A PC is not able to connect to a wired network. Pinging the loopback address is successful, but the gateway cannot be reached. On the network switch, all the interface lights are on, except for the interface connected to the PC. The LED on the network card is off. What is the most likely cause of this problem?
Correct answer(s):
- The network cable is faulty.
A technician troubleshooting a network problem has used CLI commands to determine that a computer has not been allocated a correct IP address from the DHCP server. Which command can the technician use to solve this problem?
Correct answer(s):
- ipconfig/renew
The current IP configuration of a small company is done manually and is time-consuming. Because of increased network growth, a technician needs a simpler way to IP configuration of workstations. Which service would simplify the workstation IP configuration task?
Correct answer(s):
- DHCP
A user can print to a printer that is on the same network, but the traffic of the user cannot reach the Internet. What is a possible cause of the problem?
Correct answer(s):
- A user can print to a printer that is on the same network, but the traffic of the user cannot reach the Internet. What is a possible cause of the problem?
What two default wireless router settings can affect network security? (Choose two.)
Correct answer(s):
- The SSID is broadcast.