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الخميس، 28 أبريل، 2011

IT Essentials Final exam 2e1






Elgaad IT Essentials Final Exam

1
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What is the purpose of an IRQ?
Request information from the CPU.
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2
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ABC Inc. decided to integrate redundancy by connecting multiple hard disks to duplicate the information they store. Which type of adapter will need to be installed on the servers to accomplish the desired redundancy?
RAID adapter
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3
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A network administrator is troubleshooting a server that keeps crashing. While monitoring traffic to the server, the administrator notices repeated, larger than normal pings to the server. What is the name of this type of attack?
ping of death
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4
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A customer reports poor telephone communications when using a copper telephone line that also has a DSL service. What is the most likely cause of the problem?
The DSL filter is faulty or not connected.
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5
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Which key or key sequence pressed during the boot process will allow a user to restart a Windows PC using the last known good configuration?
F8
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6
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Refer to the exhibit. A technician is troubleshooting a problem where a teacher is unable to connect a laptop to a wireless network. The wireless NIC is enabled and the wireless network configuration settings are correct. Which key would be used in conjunction with the Fn key to enable the wireless connection?
F7
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7
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Which steps lead to the window where the performance settings can be changed on a Windows XP computer that is using the classic view display?
Choose Start > Control Panel > Administrative Tools > Performance area > VMem
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8
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What are the four layers in the TCP/IP reference model?
application, transport, internet, network access
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9
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A technician is to document the current configurations of all network devices in a college, including those in off-site buildings. Which protocol would be best to use to securely access the network devices?
SSH
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Which type of memory is used for cache memory?
SRAM
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Which two memory types are installed using Dual Inline Memory Module (DIMM) slots? (Choose two.)
DDR SDRAM
SDRAM
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What approach should a technician take when receiving a call from a stressed customer?
Ask the customer to hold, and then wait five minutes for the customer to calm down.
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Refer to the exhibit. Which type of device uses the connector shown in the graphic?
DVD drive
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A customer needs to purchase a new power supply for a computer. What must be considered when selecting an appropriate power supply?
The power supply has sufficient wattage to support all components inside the computer.
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A student enables file sharing on a laptop so that a friend can access music files. Which type of service is being configured?
peer-to-peer
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Which are three steps in the laser printing process? (Choose three.)
fusing
writing
transferring
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Which option is the most secure type of user authentication?
fingerprint scanner
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What is the purpose of Windows Vista 64-bit Kernel Patch Protection?
It prevents the use of 32-bit drivers with the 64-bit Visa operating system.
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A user has been writing data to a USB flash memory drive. What should the user do before removing the device?
Click on the Safely Remove Hardware icon in the system tray then on the device.
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Which two general precautions should be taken before replacing any non-hot-swappable laptop component? (Choose two.)
Disconnect the power cord.
Remove any batteries.
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A technician wants to create a new partition on a new additional hard drive. Which tool should be used?
Disk Management
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Which port is used only for input?
PS/2
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A technician has been asked to find how a hacker keeps breaking in to a computer. Which security precaution was most likely missed when the operating system was first installed?
A password was not assigned to the default administrator account.
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What is the logical topology used for the Ethernet architecture?
bus
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Once a technician understands a customer complaint, it is common to ask close-ended questions. Which question is a close-ended one?
Is this the first time the error occurred?
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Which three customizable properties are available when right-clicking the Windows XP My Computer desktop icon and selecting Properties? (Choose three.)
virtual memory settings
automatic updates settings
computer name
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A supervisor received a complaint that one of the technicians was rude and disrespectful. Which action by the technician most likely caused the customer to complain?
The technician occasionally confirmed an understanding of the problem.
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A newly purchased scanner is not functioning as efficiently as expected. Which step should a technician take to improve performance?
Download drivers and utilities from the manufacturer web site.
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When installing the Windows XP operating system, a technician is given a choice of file systems to use. If security is a requirement, which file system should be chosen?
NTFS
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A user reports that a printer is printing unknown characters on documents. What is a possible solution to this issue?
Uninstall and reinstall the printer driver.
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A technician needs to purchase a new video adapter for a computer. Which factors should be considered when selecting the adapter?
expansion slot type
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A company uses a single computer to receive and test all Windows updates. When the most recent update was installed, several programs failed. What is the first course of action that a technician should attempt to remove the update?
Run a System Restore from the last restore point.
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Why do mobile devices such as laptop computers use specially designed CPUs?
They consume less power.
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A small business has used a high quality configurable flatbed scanner to scan a number of photographs to print as large posters. However, the quality of the images printed as posters is poor. What should the user do?
Increase the resolution of the scanner.
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A technician is having trouble with laptops that keep overheating. What preventive maintenance procedure can be performed on the laptops to reduce this problem?
Clean the air vents.
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Which power management method offers the most power management features?
ACPI
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A workstation is experiencing an error that is caused by suspected dirty RAM contacts. Which two materials should be used to clean the RAM module? (Choose two.)
isopropyl alcohol
lint-free swab
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A technician is asked to set up one hard drive that will support two operating systems and will store data files in three separate drive locations. Which partition settings will support these requirements?
2 primary, 1 active, 1 extended, 3 logical
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Which two file systems are available for selection during installation of Windows XP? (Choose two.)
FAT32
NTFS
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What is the purpose of using thermal compound when installing a CPU, a heat sink, and a fan assembly on a motherboard?
to attach the heat sink firmly to the CPU
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A technician is troubleshooting a problem where the user claims that access to the Internet is not working, but that there was access to the Internet the day before. Upon investigation, the technician determines that the user cannot access the network printer in the office either. The network printer is on the same network as the computer. The computer has 169.254.100.88 assigned as an IP address. What is the most likely problem?
The router that connects this network to other networks is down.
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Employees in the financial department have reported that an unknown technician has been asking questions about the network. Which type of attack might the employees be observing?
social engineering
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Refer to the exhibit. A Cisco Networking Academy instructor is trying to print a flash graphic from the curriculum. The print job has gone into the print queue as shown. Based on the output, what should be the next step in solving this problem?
Check the printer cabling and power.
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When installing a service pack or security patches on an operating system, what should be done to protect the system in the event of a faulty or aborted installation?
Create a restore point.
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Which network protocol is used to automatically assign an IP address to a computer on a network?
DHCP
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What is the default subnet mask for a Class A network?
255.0.0.0
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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.)
Individual users are in control of their own computers and network resources.
Data resources and access are centrally controlled.
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What do the terms refresh rate, interlace, and aspect ratio explain?
image properties of a monitor
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Where in Windows XP can the shutdown, hibernate, and standby modes be configured?
Start > Control Panel > Power Options
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What must be done before a technician cleans a very dirty LCD screen on a laptop?
Remove the battery.
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Which three things should be investigated first when troubleshooting a printer? (Choose three.)
equipment power
low-ink warning
out of paper
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A printer has a paper jam. An impatient user has sent multiple print jobs of the same document to this printer. What can be done to remove these print jobs?
Cancel the jobs in the printer queue.
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