Incorrect Testout questions
Your company has a plan in place to upgrade each employee's laptop computer to a newer model every three years. As a result, you often have old laptop batteries. Unless otherwise dictated by your local authorities, which of the following is the BEST way to deal with these types of batteries? A) They must be recycled. B) They must be stored on-site until they expire. C) They can be thrown in the trash. D) They can be recharged.
A; They Must be Recycled Laptop batteries contain hazardous materials such as mercury, cadmium, and lead. These toxic substances harm the environment. If thrown away, they can enter the food chain, adversely affecting plants, animals, and humans. Therefore, these batteries must be recycled or given to a hazardous waste facility. Since new computers come with their own new battery, there is no need to recharge and keep the old batteries. In addition, these batteries lose their holding capacity and will most likely not be able to power a device for any useable length of time. Laptop batteries do not need to be keep on-site until a certain expiration date has been meet. Once you are done with them, they can be recycled or deposited at the hazardous waste facility.
You work for a large company that has over 1000 computers. Each of these computes uses a wireless mouse and keyboard. Therefore, your company goes through a lot of alkaline batteries. When these batteries can no longer power the intended device, you must decide what to do with them. Unless otherwise dictated by your local authorities, which of the following would be the EASIEST way to deal with these batteries? A) They must be stored onsite until they expire. B) They must be sent to hazardous waste collection. C) They can be thrown in the trash. D) They can be recharged.
Alkaline batteries manufactured after 1996 are made of relatively non-hazardous materials and can be tossed directly into the trash, in most states. There is no need to send them to a hazardous waste collection. Alkaline batteries do not have an expiration date that needs to be meet before they can be thrown away. Technically speaking, an Alkaline battery can be recharged, although most manufactures tell you not to recharge them. If you recharge an alkaline battery, you risk an explosion, and you will have a low-quality battery if the charge is successful.
Which of the following will help reduce the threat of static discharge when working on computer hardware? (Select TWO.) A) Leave the system plugged into a grounded wall outlet. B) Store unused components in static shielding bags. C) Reduce the humidity in the room to around 30%. D) Place your hardware on an insulating layer of 1/4 inch Styrofoam. E) Remain in physical contact with the server chassis at all times. F) Touch the leads on the PC components with your finger to dissipate any static charge.
B and E; To reduce the threat of static discharge when working on PC hardware, you should: Store unused components in static shielding bags. Remain in physical contact with the server chassis at all times. Reducing the humidity would increase the likelihood of a static discharge. Leaving the system plugged into a grounded wall outlet may theoretically reduce the likelihood of a static discharge, but it's also extremely dangerous and should never be done. Always unplug your systems before working on them. Using Styrofoam near computer components increases the build up of static electricity and should be avoided. You should never touch the leads of a component. If a static discharge occurs, the current is carried directly to the most sensitive parts of the component.
A technician works in a factory where there is a significant amount of EMI (electromagnetic interference) emissions. Due to this EMI, several of the computers that control the factory's manufacturing machines are unable to communicate with the network. Which of the following network cabling options would be the BEST for reestablishing network communications? A) Cat 5e B) Coaxial C) Cat 7 D) Fiber optic
D; Fiber optic cabling is totally immune to EMI and provides the highest level of EMI protection. Coaxial cabling is highly resistant to EMI, but is not as good as fiber optic cabling. Due to the number of twists, Cat 7 cabling provides better protection from EMI than Cat 5e cabling. Cat 7 can also be procured with added EMI shielding. However, Cat 7, with or without shielding, is not as good as fiber optic cabling. Cat 5e provides good protection from EMI. However, Cat 7, coaxial, and fiber optic cabling provide better protection.
Which of the following components requires special disposal procedures to comply with environmental guidelines? A) Motherboard B) Hard disk drive C) Video card D) Notebook battery
Ni-Cad, NiMH, and other notebook battery types can contain regulated materials. Read the battery's documentation for a description of correct disposal procedures. Incorrect disposal can result in serious fines. While using special recycling services when disposing of computer components is environmentally friendly, most locations do not have laws regarding the disposal of most common components.
