Under what conditions should you use a plenum grade network cable?
QUESTION 1 of 5
When you need to run networking cables through ventilation spaces
When the cable needs to run long uninterrupted distances
When connecting one computer directly to another computer
When connecting a switch to a router
Identify the port and connector shown in the following figure.
QUESTION 2 of 5
ATXv2.2 motherboard power port and connector
SATA power port and connector
EPS12V power port and connector
Molex power port and connector
Which of the following best describes DNS?
QUESTION 3 of 5
It assigns an automatic IP address if the DHCP server is down.
It assigns static IP addresses.
It assigns dynamic IP addresses.
It maps domain names to IP addresses.
The LCD-CCFL display screen on your PC has no image. In an attempt to troubleshoot the problem, you notice that you can see a faint image when you shine a flashlight on the screen. Which of the following do you suspect might be causing this problem?
QUESTION 4 of 5
The screen is not receiving power and the image you see is an after image burned into the screen before it failed.
The display cables are loose and the screen is only receiving intermittent video signals.
The display settings are configured for a secondary display or projector, but none is connected.
The backlight or inverter in the screen has failed.
You have built a CAT5e cable using a T568B pinout. What type of connector did you use?
QUESTION 5 of 5
RJ-11
RJ-45
BNC
SC
Quiz Review
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Questions
- Q1 highlight_off
Under what conditions should you use a plenum grade network cable?
4.0 timer 00:00 expand_lessUnanswered4.0 timer 00:00When you need to run networking cables through ventilation spaces
When the cable needs to run long uninterrupted distances
When connecting one computer directly to another computer
When connecting a switch to a router
You should use only plenum grade networking cables anytime you need to run your cables through ventilator shafts, under floors, or inside a suspended ceiling. This is because standard cabling is toxic when burned, and in case of fire, the burning cables produce toxic smoke that could asphyxiate people in the building before they could find their way out. Plenum grade cables are much less toxic when burned and may even be self-extinguishing.
- Q2 highlight_off Identify the port and connector shown in the following figure. 4.0 timer 00:00 expand_moreUnanswered4.0 timer 00:00
ATXv2.2 motherboard power port and connector
SATA power port and connector
EPS12V power port and connector
Molex power port and connector
This is the ATX v2.2 (24-pin) motherboard power port with its connector and cable leading to the power supply.
- Q3 highlight_off Which of the following best describes DNS? 4.0 timer 00:00 expand_moreUnanswered4.0 timer 00:00
It assigns an automatic IP address if the DHCP server is down.
It assigns static IP addresses.
It assigns dynamic IP addresses.
It maps domain names to IP addresses.
An Internet site can only be accessed if you know the site's IP address. But most people do not know the IP addresses of their favorite sites. People remember names much better than numbers. DNS (which uses port 53) 7solves this problem by searching for the domain name and mapping the domain's name to its IP address. If the DHCP server is down, APIPA automatically assigns an IP address. The user assigns a static IP address to a computer. DHCP automatically assigns dynamic IP addresses.
- Q4 highlight_off The LCD-CCFL display screen on your PC has no image. In an attempt to troubleshoot the problem, you notice that you can see a faint image when you shine a flashlight on the screen. Which of the following do you suspect might be causing this problem? 4.0 timer 00:00 expand_moreUnanswered4.0 timer 00:00
The screen is not receiving power and the image you see is an after image burned into the screen before it failed.
The display cables are loose and the screen is only receiving intermittent video signals.
The display settings are configured for a secondary display or projector, but none is connected.
The backlight or inverter in the screen has failed.
Since you can see an image on the screen when you shine a flashlight on it, there is probably a problem with the LCD-CCFL screen. Probably either the inverter or the backlight has failed. None of the other options would leave an image on the screen. With those options, the screen would be completely empty.
- Q5 highlight_off You have built a CAT5e cable using a T568B pinout. What type of connector did you use? 4.0 timer 00:00 expand_moreUnanswered4.0 timer 00:00
RJ-11
RJ-45
BNC
SC
An RJ-45 connector is used with CAT5/5e, CAT6/6e, and CAT7 cables on Ethernet networks. RJ-11 connectors are used with CAT3 cables for telephone services. BNC connectors are used with coaxial cables. SC connectors are used with fiber optic cables.