Tech Detective
This might be the cause if a laptop’s touch screen is not responding correctly.
What is a faulty digitizer?
When installing a new motherboard, thermal compound must be applied between these two components.
What are the CPU and heat sink?
This service application is requested when a client packet has a destination port number of 137.
What is NetBIOS (NetBT)?
When explaining differences between inkjet and laser printers, a technician should make these two comparisons.
What are inkjet printers are less expensive initially, and laser printer output is dry while inkjet may have wet ink?
These three features can be configured in BIOS settings to secure a computer.
What are drive encryption, TPM, and passwords?
After testing a theory of probable causes without identifying the exact cause, a technician should do these two actions.
What are establish a new theory of probable causes and document each test tried that did not correct the problem?
These two laptop components are considered replaceable by the customer.
What are the battery and RAM?
These three values must be added to the IPv4 properties of a NIC for basic network connectivity.
What are IP address, subnet mask, and default gateway?
These three components are typically found in laser printer maintenance kits.
What are fuser assembly, pickup rollers, and transfer rollers?
When upgrading an ATX motherboard, this component might need to be upgraded as well.
What is the PCIe adapter?
This IP address might be assigned to a computer if the DHCP server is unreachable.
What is anything that starts with 169.254.x.x?
The purpose of RAID adapters is this.
What is to connect multiple storage devices for redundancy or speed?
These two types of wired high-speed Internet connections are common.
What are cable and DSL?
These two safety hazards are associated with laser printers.
What are high voltage and hot components?
Cleaning the inside of a computer reduces this negative environmental factor.
What is dust?
This is one common way hardware failure detected by the BIOS is indicated.
What is the computer emits a pattern of beeps indicating the failing device?
This is a characteristic of DDR SDRAM.
What is it transfers data twice per clock cycle compared to once per clock cycle for SDRAM?
To synchronize apps, movies, music, and ebooks between mobile devices, these two types of connections are used.
What are Bluetooth and Wi-Fi?
This service allows Windows to provide software print server services to MAC OS clients.
What is Bonjour Print Server?
In the United States, this is the standard voltage for wall outlet electrical power.
What is 120 volts AC?
To prevent specific applications from accessing a Windows computer over a network, a user can do this.
What is block specific TCP or UDP ports in Windows Firewall?
When assembling a PC, this component is connected to the motherboard with a SATA cable. (Hard drive isn't an option.)
What is the optical drive?
This networking trend allows hosting multiple operating systems on a single CPU in a data center.
What is virtualization?
To improve printing performance in a color laser printer used for graphics and photographs, this component should be upgraded.
What is RAM?
The purpose of a Safety Data Sheet is this.
What is to specify procedures for dealing with potentially hazardous materials?