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Worksheetscoa midterm
Total questions: 40
Worksheet time: 20mins
A user has noticed that the hard drive LED on the front of the computer has stopped working. However, the computer seems to be functioning normally. What is the most likely cause of the problem?
a. The motherboard BIOS needs to be updated.
b. The power supply is not providing enough voltage to the motherboard.
c. The hard drive LED cable has come loose from the motherboard.
d. The hard drive data cable is malf
A network administrator currently has three servers and needs to add a fourth, but does not have enough room for an additional monitor and keyboard. Which device allows the administrator to connect all the servers to a single monitor and keyboard?
a. UPS
USB switch
c. touch screen monitor
KVM switch
e. PS/2 hub
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?
a. The PC default gateway address is missing or incorrect.
b. The NIC on the PC is faulty.
c. The PC has an incorrect IP address.
d. The network cable connected to the user PC is faulty.
Which disk drive type contains a magnetic HDD with onboard flash memory serving
as a non-volatile cache?
SSD
b. SSHD
c. SCSI
d. NVMe
What is a function of the BIOS?
a. enables a computer to connect to a network
b. performs a check on all internal components
provides graphic capabilities for games and applications
provides temporary data storage for the CPU
When a new PC is being built, which component has the most influence when selecting the case and power supply?
sound card
motherboard
RAM module
video card
hard disk type
What indicates that the charge on the CMOS battery could be getting low?
The computer fails to boot.
The computer time and date are incorrect.
A beep error code occurs during POST.
Performance while accessing files on the hard drive is slow.
A technician wants to replace a failing power supply on a high-end gaming computer. Which form factor should the technician be looking for?
EPS12V
ATX
AT
ATX12V
What is a characteristic of a WAN?
It is typically owned and managed by a single home or business.
It connects multiple networks that are geographically separated.
It spans across a campus or city to enable sharing of regional resources.
It requires a wireless access point to connect users to the network.
What data is stored in the CMOS memory chip?
user login information
device drivers
Windows configuration settings
BIOS settings
Which network protocol is used to automatically assign an IP address to a computer on a network?
SMTP
APIPA
ICMP
FTP
DHCP
Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?
hub
router
switch
repeater
From which type of data storage does the CPU load information for processing during normal operation?
hard drive
SSD
ROM
RAM
Which characteristic describes EPROM?
chips specifically designed for video graphics that are used in conjunction with a dedicated GPU
a chip that is nonvolatile and can be erased by exposing it to strong ultraviolet light
chips that run at clock speeds of 800 MHz and have a connector with 240 pins
chips that require constant power to function and are often used for cache memory
Which network service automatically assigns IP addresses to devices on the network?
Telnet
DNS
traceroute
DHCP
Which motherboard form factor has the smallest footprint for use in thin client devices?
ATX
Mini-ATX
Micro-ATX
ITX
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 for IP configuration of workstations. Which service would simplify the workstation IP configuration task?
APIPA
DHCP
ICMP
DIPS
A technician looks at a motherboard and sees a 24-pin connector. What component would connect to the motherboard through the use of this 24-pin connector?
floppy drive
power supply
SATA drive
video card
PATA optical drive
Which smart home technology requires the use of a device, known as a coordinator, to create a wireless PAN?
802.11ac
802.11n
Z-Wave
Zigbee
A computer has been assigned an IP address of 169.254.33.16. What command initiates the process of requesting a new IP address?
nslookup
ipconfig /release
tracert
net computer
Refer to the exhibit. Which type of adapter is shown?
sound
video
RAID
network interface
Refer to the exhibit. A technician is installing a second SATA hard drive. Which section of the motherboard will be used to connect the SATA cable?
section D
section C
section A
section B
Hard drives in a grocery warehouse keep failing because of vibrations in the warehouse environment. What would be a possible solution for this high failure rate?
Install a more powerful power supply in each computer.
Install each computer in a specialized high airflow case.
Install an antistatic mat under each computer.
Install an SSD drive in each computer.
Which type of input device can identify users based on their voice?
KVM switch
scanner
digitizer
biometric identification device
How are the internal components of a computer protected against ESD?
by using computer cases made out of plastic or aluminum
by unplugging the computer after use
by grounding the internal components via attachment to the case
by using multiple fans to move warm air through the case
When a dual core CPU with Hyper-Threading features is installed on a motherboard, how many instructions can the CPU simultaneously process?
4
8
2
6
A user needs to access the Internet from home. Which device is needed if a user connects to an ISP through the telephone network?
wireless access point
server
switch
DSL modem
Refer to the exhibit. What type of connecter is displayed?
DVI to HDMI adapter
HDMI to VGA converter
Molex to SATA adapter
USB to PS/2 adapter
Which type of memory is primarily used as cache memory?
ROM
RAM
SRAM
DRAM
Which type of interface was originally developed for high-definition televisions and is also popular to use with computers to connect audio and video devices?
DVI
VGA
USB
FireWire
HDMI
Which characteristic describes DDR3 SDRAM?
a small circuit board that holds several memory chips and has a 30- or 72-pin configuration
chips specifically designed for video graphics that are used in conjunction with a dedicated GPU
chips that run at clock speeds of 800 MHz and have a connector with 240 pins
an individual memory chip that has dual rows of pins used to attach it to the motherboard
Which characteristic describes ROM?
a chip that cannot be erased or rewritten and is now obsolete
chips that run at clock speeds of 800 MHz and have a connector with 240 pins
chips specifically designed for video graphics that are used in conjunction with a dedicated GPU
chips that require constant power to function and are often used for cache memory
Which technology uses existing electrical wiring to connect devices to a network?
Z-Wave
802.11
IPS
Ethernet over Power
During the troubleshooting of a PC that will not boot, it is suspected that the problem is with the RAM modules. The RAM modules are removed and put into another PC, which successfully powers on. The RAM modules are then put back into the original PC and it now successfully powers on as well. What was the most likely cause of the problem?
The RAM modules did not match the PC specs.
The RAM modules have bad blocks.
The RAM modules were not seated firmly.
The RAM modules were inserted backwards into the DIMM slots.
Where is the saved BIOS configuration data stored?
RAM
CMOS
hard drive
cache
Which laptop component makes use of throttling to reduce power consumption and heat?
optical drive
CPU
motherboard
hard drive
Which component controls the communications and interactions between the CPU and other components on the motherboard?
CMOS
RAM
chipset
BIOS
Refer to the exhibit. How is the connector used in a PC?
to connect optical drives
to connect legacy floppy drives
to connect disk drives
to supply power to various internal components
A web designer installed the latest video editing software and now notices that when the application loads, it responds slowly. Also the hard disk LED is constantly flashing when the application is in use. What is a solution to solve the performance problem?
replacing the video card with a model that has a DVI output
replacing the hard disk with a faster model
upgrading to a faster CPU
adding more RAM
Refer to the exhibit. Which device is shown?
optical drive
SATA drive
media reader
KVM switch
