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IT Essentials 6.0 - Final review Flashcards | StudBud
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IT Essentials 6.0 - Final review
IT Essentials 6.0 - Final review
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Computer Hardware and Software
Flashcards
57 cards
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Answers
1
Which question is considered a close-ended one?
What happened before the error occurred?
What happened after the error occurred?
Is this the first time the error occurred?
What error messages were displayed when the error occurred?
2
Which is an indication you get when trouble shooting hardware failure during POST?
Screen flashes with a red background with a warning message.
Auto boots into Safe Mode and displays a warning.
The computer emits beeps indicating the failing device.
Error message that indicates the I/O of the bad device.
3
What are two potential risks that could result from rooting or jailbreaking a mobile device?
enabling app access to the root directory
allowing the user interface to be extensively customized
not properly creating or maintaining sandboxing features
enabling features that are disabled by a cellular carrier
4
Which is best tool to use to free system resources to improve performance?
System Restore
Task Manager
Add or Remove Programs
Event Viewer
5
What does
%USERPROFILE%
represent in the path
C:\Users\%USERPROFILE%\AppData\Local\Temp
?
a fixed value that represents level of user sytem files
location of user Documents folder
an environment variable set by the OS
a variable set by the admin for each user on the system
6
When a user tries to run a program, a missing or corrupt DLL message is displayed.
Run Windows Startup Repair.
Reinstall the correct drivers.
Run sfc/scannow in Safe Mode.
Reinstall the program associated with the corrupt DLL file.
7
On a home network a printer is shared on one Win7 machine. How do other machines get drivers?
Download the drivers from the Internet
Do nothing. Windows automatically provides the drivers.
Use Additional Driver button on the machine with the Printer
Manually install the drivers on all machines
8
When should a mobile device battery be replaced because it may be a physical hazard?
if the screen brightness begins to dim
if the device feels warm to the touch
if there are signs of swelling
if the battery only supports the system for a reduced time
9
What is the next troubleshooting step after a theory of probable cause has been established?
Test the theory to determine cause.
Document findings.
Test the theory to determine cause.
Identify the problem.
10
A technology that provides a solution for PC virtualization?
RAID
hypervisor
server clustering
Terminal Services
11
Which guideline should be followed when establishing a password security policy?
A system administrator should assign passwords to the users.
They should contain mainly numbers for better encryption.
Passwords should be physically stored in a convenient locale
Expiration period is needed so that pw frequently change.
12
A tech opens up a PC to work, and finds that it is dusty inside. What should the technician do?
Use moist cotton swat to remove excess dust
Use can of compressed air
Clean with lint free cloth and cleaning solution
Ignore the dust
13
A new sound card in a PC is not operating correctly. Where should you look driver problems?
Device Manager
System Tools
Computer Management
My Computer
14
What are two consequences of setting an incorrect boot order in the system BIOS? (Choose two.)
The computer locks up without any error messages.
The computer displays "Invalid Boot Disk" error after POST
The computer displays a "BOOTMGR is missing" after POST.
The computer continually restarts without displaying.
15
The most important reason for a company to ensure that computer preventive maintenance is done?
Helps to protect the computer against future problems.
To ensure computer use policies are being followed.
To give expereince to computer technicians
Allows IT Manager check on location/state of computer assets
16
Select correct printer to print invoices that use carbon paper to make copies
impact printer
thermal printer
inkjet printer
piezoelectric printer
17
A firewall is blocking HTTPS. Which port should be opened to solve the problem?
22
443
143
53
18
A mobile device exhibits very slow performance. What could cause this problem?
The operating system has encountered an error.
A power-intensive app is running at the background.
An app is not compatible with the device.
The touchscreen is not calibrated.
19
All of these are provided by the Trusted Platfrom Module (TPM) module except this one.
hashed encryption of the hard drive volume
security for user authentication information
application license protection
storage of digital certificates
20
Which type of input device can identify users based on their voice?
KVM switch
biometric identification device
digitizer
scanner
21
Which two types of expansion slots would be used by a wireless NIC in a computer today?
DIMM and PCI
ISA and PCIe
AGP and PCIe
PCI and PCIe
22
Which measure can help control RFI effects on wireless networks?
Set temp and humidity as low as possible
Wireless freq. must be different than the offending source
All wireless NICs must be set to unique frequencies
Wireless NICs should exceed the number of wireless phones
23
What type of external storage can be used to back up over 2 TB of music and video data files?
Secure Digital card
CompactFlash card
external hard drive
external flash drive
24
A computer running Windows 7 fails to start. What should be tried first?
Create a System Repair Disc and restore the image.
Open Control Panel and then Restore files from backup
Boot from a Windows 7 install and use the System Restore
Press F12 key during boot process and start in Safe Mode.
25
What two tasks should be done regularly for security and data and app integrity on mobile dev.?
Password protect iTunes or Google Play accounts.
Back up user data on a regular basis.
Unmount all unused disk partitions.
Ensure that the OS and apps contain the latest updates.
26
On a Win 7 computer that displays an "Invalid Boot Disk" which action would likely be taken?
UseSystem Recovery Option to select correct active partition
Scan for and remove any virus found.
Run chkdsk /F /R to fix the hard drive file entries.
Replace the hard drive on the computer.
27
Why should dust
not be allowed to accumulate on network devices in a wiring closet?
Causes insects and other pests to live in closet
Network equipment may overheat and cause network problems
Dust is a fire hazard
Wireless range is diminished
28
OSI model layer that is responsible for physical addressing and how the media is accessed.
application
network
data link
transport
29
Which solution should be used to clean a CPU and a heat sink?
isopropyl alcohol
rubbing alcohol
soap and water
a diluted ammonia solution
30
Problem if Ping
command can receive responses from PCs on same subnet but not from remote PCs?
The default gateway is incorrect.
The NIC driver is out of date.
The TCP/IP protocol stack is not loaded.
The OS is not compatible with the remote sites.
31
Purpose of a Safety Data Sheet?
to specify procedures in designing/building computer systems
Procedures for the operation of sensitive components
Specify humidity control and prevention of moisture damage
Procedures for dealing with potentially hazardous materials
32
To allow users to backup and restore all the files on their computers what should be done?
Make the users members of a group called Backup Operators.
Check Folder is Ready for Archiving box in the properties
Grant the users read permissions on all files.
Give the users administrator rights on their computers.
33
Which two commands could be used to check if DNS name resolution is working properly?
nbtstat cisco.com
ping cisco.com
net cisco.com
nslookup cisco.com
34
HDD that contains both flash memory and a magnetic disk
embedded multimedia card
solid-state hybrid disk
solid-state drive
USB flash drive
35
What can be tested with a digital multimeter?
copper cable location
basic functionality of computer ports
quality of electricity in computer components
wireless signal strength and access point positioning
36
What can help control the effect of RFI on a wireless LAN?
Ensure the number of wireless NICs exceeds the number Phones
Put WAP on different freq. than the offending source
Ensure the humidity and temperature levels are set as low
Each NIC should be on a different frequency
37
Which built-in tool is available on a Mac OS X machine to perform disk backups?
Disk Utility
Time Machine
Finder
Deja Dup
38
Which three features can be configured in the BIOS settings to secure a computer?
TPM, Passwords, MAC filtering
drive encryption, TPM, passwords
drive encryption, Passwords, lockout
MAC Filtering, drive encryption, passwords
39
A network printer is printing vertical lines on all pages. What is a likely the problem?
The printer drum is damaged.
The printer has an incorrect IP address.
The printer toner is low.
The printer does not have enough memory.
40
All the components below can typically be found in laser printer maintenance kits except one.
pickup rollers
fuser assembly
Primary and secondary corona
transfer rollers
41
What characterizes DDoS attacks?
All hosts must be in the same geographic area
Infected computers are called daemons
It is easy to identify the source of the attack
Many hosts participate in a coordinated attack
42
What should be done first before attempting to repair a hardware component on a laptop?
Remove the keyboard.
Ask a fellow technician for advice.
Consult the service manual for the laptop.
Backup the BIOS settings.
43
Which service or protocol would simplify the workstation IP configuration task?
DHCP
ICMP
DNS
APIPA
44
What is a characteristic of the open source license of an application software?
It requires registration instead of purchasing.
It allows users to modify and share the source code.
It does not require purchase in order to use the software.
It cannot be used for campus-wide deployment.
45
3 Which type of interface should be used to get both and audio and video from a computer?
PS/2
DB-15
HDMI
DVI
46
What type of device allows a computer to be safely shut down in the event of a power loss?
surge suppressor
power inverter
standby power supply
uninterruptible power supply
47
Why would NTFS be chosen over FAT32?
Better security features
It is easier to configure
Larger files supported
Auto detection of bad disk sectors
48
A technician is troubleshooting flashing lines on a laptop screen. 2 possible causes?
The display settings have been changed.
The display is not correctly installed.
Power to the pixels has been removed.
The GPU is not cooling correctly.
49
When a PC is being assembled, what component is connected to the motherboard with a SATA cable?
the video card
the network interface card
the power supply
the optical drive
50
Which closed-ended question would be appropriate for a laptop that will not power on?
Have you changed your password recently?
Can the laptop operate using the AC adapter?
What were you doing when the problem occurred?
What software has been installed recently?
51
When should a technician avoid wearing an antistatic wrist strap?
when installing RAM
when installing a hard drive
when opening a computer case
when replacing a power supply unit
52
1 What is the purpose of RAID adapters?
to allow older PCI technology expansion slots to be used
to provide enhanced audio and graphic capabilities
to connect peripheral devices to a PC to improve performance
to connect multiple storage devices for redundancy or speed
53
All items below are common laptop input devices except _________?
finger print reader
touchpad
AC power connector
web camera
54
Wireless security for gov't grade security and both personal and enterprise authentication?
LEAP
WPA2
WEP
WPA
55
Computer tech corrects a problem. Some actions did not solve the problem, What gets documented?
only the solution, because this solved the problem
only the failed attempts, for future technician.
Everything that was done
a description of the problem and solution
56
Cloud computing service best for an organization that needs to collaboratively create apps?
Infrastructure as a Service (IaaS)
Software as a Service (SaaS)
IT as a Service (ITaaS)
Platform as a Service (PaaS)
57
A network admin has migrated a peer-to-peer network to new client-server network. 2 advantages?
Data is more secure in the event of hardware failures.
Data resources and access are centrally controlled.
The total cost of the new solution is considerably lower.
Users can control their own computers & network resources
