IT ESSENTIALS MID TERM REVIEW

Questão 1 de 50

1

Which wireless security procedure should be used to hide the WLAN ID from wireless clients?

Selecione uma das seguintes:

Configure WEP only on the access point
Disable the broadcast of the SSID on the access point
Decrease the antenna spectrum on each wireless client.
Configure MAC address filtering on the access point.
Install WAP on the wireless clients

Explicação

Questão 2 de 50

1

When upgrading a CPU, what must be applied between the new CPU and the heat sink/fan?

Selecione uma das seguintes:

Adhesive gel or paste
Penetrating oil
Thermal compound
Lubricating grease

Explicação

Questão 3 de 50

1

After a Windows operating system has been installed, which program would a technician use to select the programs that will run at startup?

Selecione uma das seguintes:

Task Manager
Msconfig
Ntldr
Regedit

Explicação

Questão 4 de 50

1

What is the default file system used during a fresh installation of Windows 7?

Selecione uma das seguintes:

FAT32
FAT16
HPFS
NTFS

Explicação

Questão 5 de 50

1

Which type of device would be used on a laptop to verify the identity of a user?

Selecione uma das seguintes:

A biometric identification device
A MIDI device
A touch screen
A digitizer

Explicação

Questão 6 de 50

1

What can a technician do to help protect wireless network equipment from the effects of RFI?

Selecione uma das seguintes:

Lower the humidity level.
Keep the equipment plugged into a surge protector
Keep the equipment on an antistatic mat
Remove cordless telephones from the area.

Explicação

Questão 7 de 50

1

What are two consequences of setting an incorrect boot order in the system BIOS?

Selecione uma ou mais das seguintes:

The computer displays an "inaccessible Boot Device" error after POST.
The computer displays an "Invalid Boot Disk" error after POST.
The computer continually restarts without displaying the desktop.
The computer displays a "Missing NTLDR" error after POST.
The computer locks up without any error messages.

Explicação

Questão 8 de 50

1

A network technician has been asked to determine the best internet connection for a branch office located in a new metropolitan office building. Which connection would provide the highest bandwidth and reliability at the lowest cost?

Selecione uma ou mais das seguintes:

ISDN
DSL
Dial-up
Satellite

Explicação

Questão 9 de 50

1

Why does a technician wear an antistatic wrist strap?

Selecione uma ou mais das seguintes:

To prevent damage to electronic components inside the computer
To be grounded while working on the computer
To keep sensitive computer components dust-free before installation.
To use the power supply of the computer to store static electricity

Explicação

Questão 10 de 50

1

When installing a network adapter into a client computer, a technician notices that the contacts on the adapter need to be cleaned, which solution should the technician use to clean the contact?

Selecione uma ou mais das seguintes:

Glass cleaner
Slightly abrasive cleaner
Mild detergent
Isopropyl alcohol

Explicação

Questão 11 de 50

1

Which location on a hard disk is used by the BIOS to search for operating system instructions in order to boot a PC?

Selecione uma ou mais das seguintes:

The Windows partition
The logical drive
The active partition
The extended partition

Explicação

Questão 12 de 50

1

A technician is troubleshooting a computer that is experiencing hardware failure detected by the BIOS. What is one way this failure is indicated?

Selecione uma ou mais das seguintes:

The computer returns an error message that indicates the I/O address of the failing device.
The computer automatically boots into safe mode and displays a warning on the screen.
The computer emits a pattern of beeps indicating the failing device.
The screen flashes with a red background and displays a warning message.

Explicação

Questão 13 de 50

1

(refer to image)

Selecione uma ou mais das seguintes:

USB
Parallel
Serial
Network
Modem

Explicação

Questão 14 de 50

1

What is the purpose of RAID adapters?

Selecione uma ou mais das seguintes:

To provide enhanced audio and graphic capabilities
To connect multiple storage devices for redundancy or speed
To allow older PCI technology expansion slots to be used
To connect peripheral devices to a PC to improve performance

Explicação

Questão 15 de 50

1

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?

Selecione uma ou mais das seguintes:

My computer
Computer Management
Device Manager
System Tools

Explicação

Questão 16 de 50

1

After a computer is powered on, Windows 7 fails to start. What initial procedure would a technician use to deal with this failure

Selecione uma ou mais das seguintes:

Boot from a Windows 7 installation media and access the system restore utility.
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
Press the F2 Key during the boot process and start the computer in safe mode.

Explicação

Questão 17 de 50

1

A technician wants to create a new partition on a new additional hard drive. Which tool should be used?

Selecione uma ou mais das seguintes:

Disk Management
Scandisk
Disk Defragmenter
Device Manager
Chkdsk

Explicação

Questão 18 de 50

1

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?

Selecione uma ou mais das seguintes:

System Restore
Event Viewer
Task Manager
Add or Remove Programs

Explicação

Questão 19 de 50

1

Which key or key sequence pressed during the boot process will allow a user to start a Windows PC using the last known good configuration?

Selecione uma ou mais das seguintes:

Windows key
F12
Alt+Z
F1
F8

Explicação

Questão 20 de 50

1

Which Windows hard drive partition is commonly referred to as the C:drive?

Selecione uma ou mais das seguintes:

The first primary partition
The first extended partition
The first logical partition
The first volume partition

Explicação

Questão 21 de 50

1

A technician needs to purchase a new video adapter for a computer, In addition to performance and price, which factor should be considered when selecting the adapter?

Selecione uma ou mais das seguintes:

Type of installed hard drive
Motherboard manufacturer
Expansion slot type
Amount of installed system memory

Explicação

Questão 22 de 50

1

A computer user complains of a computer that freezes up after about five minutes of use. The technician checks the computer BIOS to see if there might be a configuration problem that is causing the computer to behave consistently in this manner, While the technician is reviewing the information, the computer once again freezes. What is the probable cause of the computer problem?

Selecione uma ou mais das seguintes:

The CPU fan is not functioning
The BIOS is corrupt
The hard drive is failing
The CMOS battery has failed

Explicação

Questão 23 de 50

1

A technician has replaced the batteries in all the company laptops. Which source will have information on the proper disposal requirements for the old batteries?

Selecione uma ou mais das seguintes:

OSHA web site
MSDS
The website of the laptop manufacturer
Local environmental regulations

Explicação

Questão 24 de 50

1

Where would a technician configure a PC to boot from a CD-ROM?

Selecione uma ou mais das seguintes:

Control Panel
My Computer
BIOS Settings
Start Menu
Device Manager

Explicação

Questão 25 de 50

1

A technician just terminated some fiber optic cable and needs to properly dispose of the hazardous waste created during the termination. Where should the technician look for the proper disposal method for the waste?

Selecione uma ou mais das seguintes:

ESD
EPA
MSDS
FEMA

Explicação

Questão 26 de 50

1

A school is adding computers to a classroom that has none. What type of LAN would the school choose to take advantage of commonly implemented wired technologies?

Selecione uma ou mais das seguintes:

Token Ring
802.11n
Ethernet
WiMAX

Explicação

Questão 27 de 50

1

A customer has a computer for a home business, but wants to have another computer as a web server. What would be the best solution for the customer to share the monitor, mouse, and keyboard between the two computers?

Selecione uma ou mais das seguintes:

Multipurpose device
Access Point
KVM switch
network switch
USB hub

Explicação

Questão 28 de 50

1

What is the default TCP destination port number or number combination that is used for SSH connections?

Selecione uma ou mais das seguintes:

20/21
22
23
25
80

Explicação

Questão 29 de 50

1

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?

Selecione uma ou mais das seguintes:

The NIC driver is out of date
The default gateway is incorrect.
The operating system is not compatible with the remote sites.
The TCP/IP protocol stack is not loaded.

Explicação

Questão 30 de 50

1

Which product is recommended to remove the dust from inside a computer?

Selecione uma ou mais das seguintes:

Compressed Air
Household vacuum cleaner
damp cloth
dry cloth

Explicação

Questão 31 de 50

1

Which command should a computer technician use on a PC to restore protected system files with known good versions?

Selecione uma ou mais das seguintes:

defrag
chkdsk
sfc/scannow
msconfig

Explicação

Questão 32 de 50

1

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?

Selecione uma ou mais das seguintes:

ICMP
DNS
APIPA
DHCP

Explicação

Questão 33 de 50

1

What are the four layers in the TCP/IP reference model?

Selecione uma ou mais das seguintes:

application, presentation, internet, network access
application, transportation, internet, data link
application, transport, internet, network access
application, presentation, session, transport
physical, data link, internet, transport

Explicação

Questão 34 de 50

1

A PC that is running the Windows 7 operating system has slowed down over a period of time and now takes a long time to launch applications and open various documents. What can be done to remedy the problem?

Selecione uma ou mais das seguintes:

Dr.Watson
System Restore
Disk Defragmenter
Chkdsk

Explicação

Questão 35 de 50

1

A computer is assigned an IP address of 169.254.33.16. What can be said about the computer, based on the assigned address?

Selecione uma ou mais das seguintes:

It cannot communicate outside its own network
It has a public IP address that has been translated to a private IP address.
It can communicate on the local network as well as on the internet.
It can communicate with networks inside a particular company with subnets

Explicação

Questão 36 de 50

1

A user complains about being unable to connect to the wireless network. Which two actions should be part of troubleshooting the wireless connection? (Choose two.)

Selecione uma ou mais das seguintes:

Verify in the laptop software whether any wireless networks are detected.
Verify that the laptop is plugged into an electrical outlet
Reconfigure TCP/IP settings on the laptop.
Try moving the laptop to different places to see if a signal can be detected.
Reinsert the laptop battery.

Explicação

Questão 37 de 50

1

Which recommendation should be observed when replacing existing memory?

Selecione uma ou mais das seguintes:

The new memory should exceed the capability of the hard drive.
The new memory should operate at the same speed as the hard drive.
The new memory should be as fast or faster than existing memory.
The new memory should be as fast or faster as the cache found in the processor.

Explicação

Questão 38 de 50

1

A network specialist has been hired to install a network in a company that assembles airplane engines. Because of the nature of the business, the area is highly affected by electromagnetic interference. Which type of network media should be recommended so that the data communication will not be affected by EMI?

Selecione uma ou mais das seguintes:

coaxial
STP
fiber optic
UTP

Explicação

Questão 39 de 50

1

A company is expanding its business to other countries. All branch offices must remain connected to corporate headquarters at all times. Which network technology is required to support this scenario?

Selecione uma ou mais das seguintes:

LAN
WLAN
MAN
WAN

Explicação

Questão 40 de 50

1

Which step in the troubleshooting process is important to help avoid repeating repair processes that were performed previously?

Selecione uma ou mais das seguintes:

implementation of the solution
documentation of the problem and its solution
preparation of a plan of action
identification of the problem

Explicação

Questão 41 de 50

1

(refer to image)

Selecione uma ou mais das seguintes:

1
2
3
4
5
6

Explicação

Questão 42 de 50

1

What are three main characteristics of a Windows 64-bit operating system?

Selecione uma ou mais das seguintes:

The 64-bit operating system memory management system enhances program performance.
The 64-bit operating system can recognize more than 128 GB of RAM
The 64-bit operating system has fewer registers to manage applications.
The 64-bit operating system has additional security features.
The 64-bit operating system has a built-in virtualization mode.
The 64-bit operating system runs on a RISC chip architecture.

Explicação

Questão 43 de 50

1

What is an example of PC virtualization?

Selecione uma ou mais das seguintes:

sharing video and music files in a homegroup network
running an instance of Windows Vista from inside a Windows OS
configuring a small network to allow an application to be accessed by other PCs in the office
Setting up a peer-to-peer network so that a laser printer can be accessed by all workstations

Explicação

Questão 44 de 50

1

A specific computer has an issue that could not be resolved by the help desk technician. The on-site technician finds that Windows updates have been disabled. The technician re-enables the update service, configures the computer for automatic updates, downloads and installs all missing updates, ensures the computer boots successfully, and verifies with the customer that the issue has been resolved. Which step, if any, is next?

Selecione uma ou mais das seguintes:

Document the findings, actions, and outcomes.
Establish a plan of action to resolve the problem and implement the solution.
verify full system functionality and, if applicable , implement preventive measures.
Test the theory to determine the cause.
No further action needed.

Explicação

Questão 45 de 50

1

A technician is designing a hardware preventive maintenance plan for a company. Which strategy should be included in the plan?

Selecione uma ou mais das seguintes:

Omit performing maintenance operations on components until the equipment malfunction.
Schedule and document routine maintenance tasks.
Avoid performing maintenance operations on plug and play devices that are controlled by the operating system.
Only clean equipment that is requested by the customer.

Explicação

Questão 46 de 50

1

A helpdesk technician takes a call, "Good morning, this is the helpdesk, My name is Greg. How may I help you today?" The frantic caller states, "My computer will not turn on and I have a presentation in 15 minutes." The technician responds, "Now calm down and let us see what we can do" The technician then proceeds to lead the caller through the process of checking power cables and power lights. Which troubleshooting step is being used at this point?

Selecione uma ou mais das seguintes:

Identify the problem
Establish a plan of action to resolve the problem
Implement a solution
Verify full system functionality and, if applicable, implement preventive measures.
Establish a theory of probable cause.

Explicação

Questão 47 de 50

1

On a computer that will not boot, which two actions are recommended in the troubleshooting process after verifying the obvious issues such as power to the computer and display, non-bootable media, and the BIOS boot order options? (choose two.)

Selecione uma ou mais das seguintes:

Reinstall the operating system
Remove unnecessary peripherals.
Replace computer components one at a time until the problem is solved.
Reset the BIOS settings to factory default
Use the Last Known Good Configuration
Reinstall the user application

Explicação

Questão 48 de 50

1

Which type of standard interface allows users to connect and disconnect peripheral devices while the computer is running without having to restart?

Selecione uma ou mais das seguintes:

PATA
SATA
USB
IDE

Explicação

Questão 49 de 50

1

What is the most important reason for the company that the preventive maintenance be done?

Selecione uma ou mais das seguintes:

Preventive maintenance helps to protect the computer equipment against future problems.
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.
Preventive maintenance maintenance allows the IT department to regularly monitor the contents of user hard drives to ensure computer use policies are being followed.

Explicação

Questão 50 de 50

1

What is the distance limitation of a single data run for UTP cabling without adding networking devices?

Selecione uma ou mais das seguintes:

33 ft (10 m)
100 ft (31 m)
330 ft (100 m)
500 ft (154 m)

	Criado por CoolUsername7 quase 9 anos atrás