Ite Final Exam Part1

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test Ite Final Exam Part1 (Hardware)(nezveřejněné)

Autor: krystofoxik (5vlož. 80vyzk.+2%ø) ... vloženo 17.6.2018

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What is the next troubleshooting step after a theory of probable cause has been established?
Establish a plan of action.
Test the theory to determine cause.
Document findings and outcomes.
Identify the exact problem.
A user calls the help desk to report that 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 operating system has encountered an error.
The touchscreen is not calibrated.
What is the purpose of RAID adapters?
to connect peripheral devices to a PC to improve performance
to allow older PCI technology expansion slots to be used
to connect multiple storage devices for redundancy or speed
to provide enhanced audio and graphic capabilities
Which three features can be configured in the BIOS settings to secure a computer? (Choose three.) (vyberte 3)
passwords
MAC filtering
drive encryption
TPM
TKIP key
file encryption
What is an indication that the battery in a mobile device could become physically hazardous and should be immediately replaced?
if the battery only supports the system for a reduced period of time
if the screen brightness begins to dim
if there are signs of swelling
if the device feels warm to the touch
What type of device provides power to a computer and allows it to be safely shut down in the event of a power loss?
standby power supply
surge suppressor
power inverter
uninterruptible power supply
What can be tested with a digital multimeter?
quality of electricity in computer components
copper cable location
basic functionality of computer ports
wireless signal strength and access point positioning
A technician opens up a PC to work on it, and finds that it is very dusty inside. What should the technician do?
Use a can of compressed air to remove excess dust.
Use a lint-free cloth sprayed with a cleaning solution to remove excess dust.
Use a moistened cotton swab to remove excess dust.
Ignore the dust, as it does not affect the computer.
Once a technician understands a customer complaint, it is common to ask closed-ended questions. Which question is a close-ended one?
What happened after the error occurred?
Is this the first time the error occurred?
What error messages were displayed when the error occurred?
What happened before the error occurred?
What are two advantages of the NTFS file system compared with FAT32? (Choose two.) (vyberte 2)
NTFS provides more security features.
NTFS allows faster access to external peripherals such as a USB drive.
NTFS allows the automatic detection of bad sectors.
NTFS is easier to configure.
NTFS supports larger files.
NTFS allows faster formatting of drives.
What type of external storage should be used by a technician to back up over 2 TB of music and video data files?
external flash drive
external hard drive
CompactFlash card
Secure Digital card
A technician is troubleshooting a computer that is experiencing hardware failure detected by the BIOS. What is one way this failure is indicated?
The computer returns an error message that indicates the I/O address of the failing device.
The computer emits a pattern of beeps indicating the failing device.
The screen flashes with a red background and displays a warning message.
The computer automatically boots into Safe Mode and displays a warning on the screen.
What does %USERPROFILE% represent in the path C:\Users\%USERPROFILE%\AppData\Local\Temp?
a variable set by the administrator for each user of the system
a fixed value that represents the level of access of a user to system files
the location of the Documents folder of a particular user
an environment variable that is set by the operating system
What are two potential risks that could result from rooting or jailbreaking a mobile device? (Choose two.) (vyberte 2)
not properly creating or maintaining sandboxing features
allowing the user interface to be extensively customized
improving device performance
enabling features that are disabled by a cellular carrier
enabling app access to the root directory
Which type of input device can identify users based on their voice?
digitizer
scanner
KVM
switchbiometric identification device
Which built-in tool is available on a Mac OS X machine to perform disk backups?
Deja Dup
Finder
Time Machine
Disk Utility
Which layer of the OSI model is responsible for physical addressing and the procedures used to access media?
application
transport
data link
network
After a computer is powered on, Windows 7 fails to start. What initial procedure would a technician use to deal with this failure?
Access the Control Panel and choose Restore Files from Backup from the System and Security menu.
Create a System Repair Disc and restore the image.
Boot from a Windows 7 installation media and access the System Restore utility.
Press the F12 key during the boot process and start the computer in Safe Mode.
A technician is troubleshooting the appearance of flashing lines on a laptop screen. What are two possible causes of this distortion? (Choose two.) (vyberte 2)
The display settings have been changed.
Power to the pixels has been removed.
The LCD cutoff switch is damaged.
The GPU is not cooling correctly.
The display is not correctly installed.
What is the most important reason for a company to ensure that computer preventive maintenance is done?
Preventive maintenance helps to protect the computer equipment against future problems.
Preventive maintenance allows the IT department to regularly monitor the contents of user hard drives to ensure computer use policies are being followed.
Preventive maintenance enables the IT manager to check on the location and state of the computer assets.
Preventive maintenance provides an opportunity for junior technicians to obtain more experience in a non-threatening or problem environment.
When should a technician avoid wearing an antistatic wrist strap?
when installing a hard drive
when installing RAM
when replacing a power supply unit
when opening a computer case
A tire store needs to use carbon copy paper to print customer invoices so that both the store and the customer have a copy. What is the best printer solution?
thermal printer
inkjet printer
piezoelectric printer
impact printer
Which closed-ended question would be appropriate for a technician to use to narrow down the possible problems on a laptop that will not power on?
What were you doing when the problem occurred?
Have you changed your password recently?
Can the laptop operate using the AC adapter?
What software has been installed recently?
A network administrator has finished migrating from a peer-to-peer network to a new client-server network configuration. What are two advantages of the new configuration? (Choose two.) (vyberte 2)
Data is more secure in the event of hardware failures.
The total cost of the new solution is considerably lower.
Individual users are in control of their own computers and network resources.
Personnel costs are lower because a dedicated network administrator is no longer necessary.
Data resources and access are centrally controlled.
Which wireless security mode supports government grade security and offers both personal and enterprise authentication?
WPA
WEP
WPA2
LEAP
Which type of interface should a customer choose if connecting a single cable from a Microsoft Windows computer to output both audio and video to a high definition television?
DVI
DB-15
HDMI
PS/2
Which two commands could be used to check if DNS name resolution is working properly on a Windows PC? (Choose two.) (vyberte 2)
ipconfig /flushdns
net cisco.com
nbtstat cisco.com
nslookup cisco.com
ping cisco.com
What are three common input devices found on laptops? (Choose three.) (vyberte 3)
touchpad
PS/2 keyboard
external monitor
AC power connector
fingerprint reader
web camera
A technician notices that an application is not responding to commands and that the computer seems to respond slowly when applications are opened. What is the best administrative tool to force the release of system resources from the unresponsive application?
System Restore
Task Manager
Add or Remove Programs
Event Viewer
Which measure can help control RFI effects on wireless networks?
Ensure the number of wireless NICs exceeds the number of wireless phones.
Ensure the wireless network is on a different frequency than the offending source.
Ensure the humidity and temperature levels are set as low as possible.
Ensure each wireless NIC is configured to operate at different frequencies from all other wireless NICs.
A network administrator occasionally asks a technician to make sure that dust does not accumulate on devices in the network equipment closets. What is the purpose of having the technician do this job?
Dust diminishes the range of wireless services.
Dust increases electromagnetic interference in nearby connected cables.
Dust is considered a fire hazard that poses danger to personnel and equipment.
Dust can encourage insects and other pests to live in the equipment closets.
Dust can cause network equipment to overheat and cause problems on the network.
What guideline should be followed when establishing a password security policy?
Lockout policies should be avoided in order to increase user access.
Passwords should be physically stored in a convenient location.
The system administrator should assign passwords to the users.
An expiration period should be established so that passwords frequently change.
Passwords should contain mainly numbers for better encryption.
A computer technician has decided that a problem with a laptop can be solved by repairing a hardware component. What should be done first before attempting to repair a hardware component on a laptop?
Ask a fellow technician for advice.
Backup the BIOS settings.
Consult the service manual for the laptop.
Remove the keyboard.
A computer technician performed a number of actions to correct a problem. Some actions did not solve the problem, but eventually a solution was found. What should be documented?
everything that was done to try to solve the problem
only the solution, because this solved the problem
a description of the problem and solution
only the failed attempts, so that future technicians will know what not to try
When a PC is being assembled, what component is connected to the motherboard with a SATA cable?
the video card
the power supply
the optical drive
the network interface card
Which technology provides a solution for PC virtualization?
hypervisor
RAID
server clustering
Terminal Services
What are three features provided by the TPM module? (Choose three.) (vyberte 3)
application license protection
security for user authentication information
support for Windows backup
storage of digital certificates
support for Windows Firewall
hashed encryption of the hard drive volume
A user on a home network wants to share a printer from a Windows 7 computer. What must the user do in order for other Windows 7 computers in the house to obtain the proper driver?
The person doing the sharing must use the Additional Drivers button in order to designate how many device drivers are allowed to be downloaded.
The user must browse the Internet, then download and install the proper driver.
Nothing. Windows automatically provides the driver.
The person doing the sharing must use the Additional Drivers button in order to designate the driver to be used by the other Windows 7 computers.
What type of hard drive contains flash memory for caching frequently used data but stores the most of the data on a magnetic hard disk drive?
solid-state hybrid disk
solid-state drive
USB flash drive
embedded multimedia card
Which solution should be used to clean a CPU and a heat sink?
rubbing alcohol
a diluted ammonia solution
soap and water
isopropyl alcohol
A technician has installed a new sound card in a PC but it is not operating correctly. Where should the technician look to investigate driver problems?
System Tools
Device Manager
Computer Management
My Computer
Which three components are typically found in laser printer maintenance kits? (Choose three.) (vyberte 3)
primary corona
pickup rollers
paper trays
transfer rollers
fuser assembly
secondary corona
What are two consequences of setting an incorrect boot order in the system BIOS? (Choose two.) (vyberte 2)
The computer continually restarts without displaying the desktop.
The computer displays an ‘Inaccessible Boot Device’ error after POST.
The computer displays a “BOOTMGR is missing” error after POST.
The computer displays an “Invalid Boot Disk” error after POST.
The computer locks up without any error messages.
Which two types of expansion slots would be used by a wireless NIC in a computer today? (Choose two.) (vyberte 2)
AGP
DIMM
ISA
PCIe
PCI
What characterizes a DDoS attack?
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.
The current IP configuration of a medium size company with several subnets 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 or protocol would simplify the workstation IP configuration task?
ICMP
APIPA
DHCP
DNS
What two tasks should be done regularly to preserve the security and integrity of data and applications on mobile devices. (Choose two.) (vyberte 2)
Unmount all unused disk partitions.
Ensure that the operating system software and applications contain the latest updates.
Execute a factory reset once a month to remove all unidentified malicious software.
Password protect iTunes or Google Play accounts.
Use airplane mode if you are accessing the Internet at an open Wi-Fi site.
Back up user data on a regular basis.
Which Cloud computing service would be best for an organization that needs to collaboratively create applications and deliver them over the web?
IaaS
ITaaS
PaaS
SaaS
What is the purpose of a Safety Data Sheet?
to specify procedures for dealing with potentially hazardous materials
to specify procedures in designing and building common computer systems
to specify procedures in the use of humidity control and prevention of moisture damage
to specify procedures for the operation of sensitive components and prevention of electrostatic discharge
Several messages sent to the network administrator are reporting that access to a secure server using HTTPS is failing. After checking recent updates to the company firewall, the administrator learns that the firewall is blocking HTTPS. Which port should be opened to solve the problem?
443
53
143
22
80
Refer to the exhibit. What is true of this mobile device screen?
Text messages, news, photos and other content can be displayed in the different tiles.
Unpinning an app from this view will uninstall the app from the phone.
Icons and buttons are used to represent the different apps on the phone.
Tile sizes depend on the size of the app.
Tapping and holding the arrow at the bottom left will display the Home screen.
A technician installed a network adapter in a computer and wants to test network connectivity. The ping command can receive responses from workstations on the same subnet but not from remote workstations. What could be causing the problem?
The operating system is not compatible with the remote sites.
The default gateway is incorrect.
The TCP/IP protocol stack is not loaded.
The NIC driver is out of date.

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