Which two protocols operate at the transport layer of the TCP/IP model? (Choose two.) UDP ICMP TCP FTP IP Answers Explanation & Hints: The TCP/IP model includes four layers. The…
Which technology uses existing electrical wiring to connect devices to a network? IPS 802.11 Z-Wave Ethernet over Power Answers Explanation & Hints: Ethernet over Power, or powerline networking, uses a…
Fill in the blank. The technology that allows a switch to deliver power to a device like an IP phone or an access point through the data cable is known…
A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this scenario?…
Which security technology is used to passively monitor network traffic with the objective of detecting a possible attack? IPS IDS proxy server firewall Answers Explanation & Hints: An IDS system…
Which smart home technology requires the use of a device, known as a coordinator, to create a wireless PAN? 802.11ac 802.11n Zigbee Z-Wave Answers Explanation & Hints: The ZigBee Coordinator…
Which network device regenerates the data signal without segmenting the network? router modem switch hub Answers Explanation & Hints: Hubs are sometimes called repeaters because they regenerate the signal. All…
What are two common media used in networks? (Choose two.) copper nylon water fiber wood Answers Explanation & Hints: Common media used in networks include copper, glass or plastic optical…
A technician has captured packets on a network that has been running slowly when accessing the internet. Which port number should the technician look for within the captured material to…
Which type of network will extend a short distance and connects printers, mice, and keyboards to an individual host? PAN LAN MAN WLAN Answers Explanation & Hints: A personal area…
A switch is a networking device that will record MAC addresses by inspecting every incoming data frame. Answers Explanation…
Fill in the blank. broadband technology uses different frequencies to transmit multiple signals simultaneously over the same cable. Answers Explanation & Hints: Broadband technology uses…
Which procedure is recommended when cleaning inside a computer? Invert the can of compressed air while spraying. Hold the CPU fan to prevent it from spinning and blow it with…
What is a symptom of a failing power supply? The computer sometimes does not turn on. The display has only a blinking cursor. The power cord will not attach properly…
Which step in the troubleshooting process is important to help avoid repeating repair processes that were performed previously? implementation of the solution identification of the problem documentation of the problem…
Which cleaning tool should be used to remove dust from components inside a computer case? cotton swabs duster damp cloth compressed air Answers Explanation & Hints: To remove dust inside a…
A customer reports that recently several files cannot be accessed. The service technician decides to check the hard disk status and the file system structure. The technician asks the customer…
What task should be completed before escalating a problem to a higher-level technician? Replace all hardware components with components that are known to work. Redo each test to ensure the…
After a problem is identified, what is the next step for the troubleshooter? Implement a solution. Establish a theory of probable causes. Document the findings. Verify the solution. Determine the…
What is the most important reason for a company to ensure that computer preventive maintenance is done? Preventive maintenance enables the IT manager to check on the location and state…