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The NIC driver is out of date.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