A+ semester final exam

your network follows the 1000Base-T specifications for gigabit Ethernet. which of the following is the maximum cable segment length allowed?

100 meters

which of the following IP addresses belong to the class A network 114.0.0.0? (tip assume the network is indicated by the default Class A portion of the IP address.)

114.0.0.15 114.122.66.12 114..58.12.0

You have a small home network that uses 192.168.1.0 with the default subnet mask for the network address. the default gateway address is 192.168.1.254,and the router is providing DHCP on the network. the Wrk2 computer has been assigned the IP address of 192.168.1.55. which of the following is considered the loopback address for the Wrk2 computer?

127.0.0.1

Internet message access protocol (imap)

143

given that your windows workstation has automatic private IP addressing (apipa) implemented using default settings, which of the following TCP/IP addressing could be automatically assigned to the system should your DHCP server go down or become inaccessible?

169.254.1.26

which of the following IP addresses are Class C addresses?

192.15.5.55 222.55.0.0 223.16.5.0

secure shell (ssh)

22

you have been asked to implement a RAID 5 solution for an engineer's desktop workstation. what is the minimum number of hard disks that can be used to configure RAID 5?

3

which of the following voltages are provided by an ATX power supply?

3.3 5 12

while working on a windows workstation, you've enabled remote desktop. Which of the following ports MUST be opened in the server's firewall to allow remote clients to access the desktop?

3389

Server location Protocol (SLP)

427

HTTP over SSL (HTTPS)

443

Server message block (SMB/CIFS) directly over TCP

445

what is the maximum data transfer speed for USB 3.0 devices?

5 Gbps

you've just installed the dns service on a windows server. which port must be opened in the server's firewall to allow clients to access the service?

53

apple filing protocol (afp)

548

which of the following are true of the SXGA screen resolution?

5:4 Aspect ratio 1280 x 1024

Hypertext transfer protocol (HTTP)

80

Upon reviewing the specifications for a motherboard, you find that it uses an F CPU socket. which of the following manufacturers' CPUs can be used in this motherboard?

AMD

A host wants to send a message to another host with the IP address 11.99.80.157. IP does not know the hardware address of the destination device. which protocol can be used to discover the MAC address?

ARP

which partition type identifies the partition as one that holds the boot loader program used to start the operating system?

Active

while on a service call at a customer site, you are discussing the problem with the customer when your cell phone rings. you check the caller ID, and you see that the call is related to the parts you ordered for another customer. which of the following is the most professional way to handle the situation?

Ask the customer if they mind if you take the call, and then step into the hallway to briefly talk on the phone.

which of the following components is an example of firmware?

BIOS/UEFI

One day, while trying to start your windows 10 system, you see the following error displayed: could not read from the selected boot disk. check boot path and disk hardware. which of the following will most likely fix the problem?

Boot into the recovery environment and run the bootrec/rebuild command.

which of the following is a valid MAC address?

C0-34-FF-15-01-BE

which of the following devices can store large amounts of electricity even when unplugged

CRT monitor

Which of the following are common tools used to physically clean the inside of a computer?

Compressed air natural bristle brush

which of the following memory ratings identifies the fastest memory?

DDR3-1600

while configuring a computer, you find that you need to create, format, and manage the partitions and volumes on your hard drives. which of the following is the BEST command line utility to use?

DiskPart

to improve the safety of your location and comply with regulations regarding work environments with hazardous materials, you have been assigned to assemble material safety data sheets (MSDS) for all chemicals used in your shop. how should you get them?

Download them from the chemical manufacturer's websites.

Which of the following is an error detection technique that can also correct the error?

ECC

you have just signed up for a broadband home internet service that uses coaxial cable. which connector type will you most likely use?

F-type

you have been using the same computer for several years. to improve performance, you decide to upgrade the processor. you check the motherboard documentation and purchase the fastest processor supported by the motherboard. however, when you try to start the computer, it beeps regularly and nothing is displayed on the screen. which of the following actions would most likely rectify this issue?

Flash the UEFI firmware. Reinstall the old processor in the motherboard

you are building an HTPC (home theater pc) that will be connected to an HDTV. you want to be able to play blu-ray movies on the HTPC. which of the following features should your video card and HDTV most likely support?

HDCP

which protocols are used on the internet to transmit web pages from web servers to web browsers running on client workstations?

HTTPS HTTP

which of the following standards provides for data transfer rates up to 800 Mbps with a maximum cable length of 100 meters?

IEEE 1394b

Which of the following protocols is used by an e-mail client to retrieve messages from an email server and gives users the option to keep mail messages on the server?

IMAP

You have an existing computer running windows 7 enterprise. you want to configure a RAID 1 array in the computer. you install two new SATA drives, then use the RAID controller integrated in the motherboard to define a RAID 1 array using them. when you boot the computer, windows does not show the logical RAID drive. what should you do?

Install the drivers for the RAID controller.

what is true of processor cache?

L3 is shared between all cores L1 is typically unique to a processor core

you are putting together a system for a graphic artist and need to make sure you get a display that meets her needs. the display needs to have very good color reproduction quality and viewing angles. the display needs to run cool and be power efficient which of the following types of displays will most likely meet these needs?

LCD display with IPS panel.

you are putting together a gaming system and need to make sure you get a display that meets your needs. the display needs to have a very good response time, and you would prefer that it be affordable and power efficient.

LCD display with TN panel

You are configuring a new system and want to use a RAID 0 array for the operating system using SATA disks and the raid functionality built into the motherboard. Which of the following best describes the action you will take as part of the configuration?

Load the raid drivers during operating system installation.

Which of the following form factors does not have expansion slots on the motherboard, but instead uses a riser card for expansion cards?

NLX

what is required to control access to the file system using file and folder permissions on a window-based computer?

NTFS-formatted partition

which of the following protocols do email clients use to download messages from a remote mail server?

POP3

what is the name for the routine that tests the motherboard, memory, disk controllers, video, keyboard and other system hardware?

POST

you have been asked to configure the drives in a computer. The end user wants to use striping without incorporating any fault tolerance. which of the following will BEST meet these requirements?

RAID 0

What is an advantage of RAID 5 over RAID 1?

RAID 5 improves performance over raid 1.

you are building a new computer and want to purchase a motherboard that has integrated sound with digital audio output. which of the following ports would you most likely find on the motherboard faceplate that indicates digital audio support?

S/PDIF

you are building one of your customers a home theater PC (HTPC) to connect to an HDTV and high-definition audio system. The customer is going to be playing mostly blu-ray movies on the system. which of the following features should the sound card include?

S/PDIF output Dolby digital/DTS support, or SDDS support.

After arriving at work, you turn on your computer to begin your day. Instantly, you see smoke and smell a strange odor coming from the computer. which of the following would be the most important action to take?

Shut off the system immediately.

your company relocated you to their united kingdom office in London. you brought your personal computer with you and are in the process of setting it up. your computer was previously configured to receive 110 V AC, but the electricity in London uses 230 V AC. Which of the following would allow your computer to run on 230 V AC?

Toggle the voltage switch on the power supply to the different voltage.

which of the following standards provides for data transfer rates up to 480 Mbps with a maximum cable length of 5 meters?

USB 2.0

for which type of device will you typically install the driver before you connect the device to your system?

USB devices

you have a computer with a Pentium 4 CPU and two PC-2400 DDR modules. the motherboard has room for two additional memory modules. Which of the following statements is true?

all memory will operate at 300 MHZ

You have a computer with a removable disk drives that has been formatted with NTFS. you want the drive to use FAT32 to be compatible with more operating systems. the drives is currently configured using drive letter D:. which of the following action MUST you complete to make desired changes?

back up the data on the D: drive. reformat the D: drive using FAT32. Restore the data.

which disk type does windows support?

basic dynamic

you have just purchased a new plug and play sound card that uses a PCI slot. what should you do before installing the device in your windows system?

check the HCL to make sure the device is compatible with the version of windows running on your system. download the latest driver from the manufacture's website.

which of the following should be handled with caution due to high operating temperatures?

components within a laser printer printing head in a dot matrix printer

you are installing a high-end pcie x16 video card in a new computer. the video card has connectors for two displays. the card also has dual fans to cool the unit.

connect a 6- or 8-pin power connector to the video card.

you want to be able to watch and record live TV on your computer. Your computer already has a video card, so you want to purchase an additional card that provides TV tuner input capabilities. which of the following should MOST likely be part of the configuration process?

connect the TV input to the tuner card using coaxial cable and F-type connectors. Purchase a card that supports ATSC.

a user reports that she can't turn her computer on. after some investigation, you find that the power supply is malfunctioning. which of the following actions should you perform next?

create an action plan

A user reports that he cannot access several network files. After some investigation, you determine that the problem was with a network server.

determine if escalation is needed.

which of the following disk maintenance utilities will locate and dispose of files that can be safely removed from the disk?

disk cleanup

which of the following disk maintenance utilities optimizes the performance of your hard drive by joining parts of the files that are in different locations on your hard drive into a single location?

disk derangementer

you've just installed a new video card in a user's window workstation. however, when the system is powered on, the screen is displayed in 16 colors at 640x480 resolution which of the following will best resolve this problem?

download and install the latest driver from the video card manufacturer's website.

You have just installed a new device in your windows system. after installation, you can't use the device. you check device manager and find an icon for the device with a yellow exclamation mark over it. what should you do?

download the latest driver from the manufacturer's website.

A user complains that his USB scanner no longer works. you check device manager and see an icon with a black down arrow on it. what should you do?

enable the device in device manager

lately you hear a clicking noise when reading or writing data from the hard disk. what is the most likely cause of the clicking?

failing hard drive

you have physically installed a new hard disk in your computer, configured the disk in the BIOS using the CMOS setup program, and partitioned the disk. you try to access the hard disk drive in windows explorer, but get an error message. which utility will you most likely use to solve the problem?

format

which windows component can be used to display information such as weather forecasts, time, and news headline on the desktop?

gadgets

what is a major benefit of STP over UTP?

greater resistance to interference

you need a storage device that has very large storage capacity, is fast, and is relatively inexpensive. which storage device will best suit your needs?

hard disk

you are responsible for managing client workstations for your company. a frantic user calls you one morning exclaiming that "nothing is working" which of the following actions should you perform FIRST?

identify the problem

your computer currently runs windows 10 professional edition. you want to create a RAID 10 array using four newly-installed SATA disks. when you go to disk management, the option to create the RAID 10 array is not available. what should you do?

install an add-on RAID controller.

You have an existing computer running windows 10 enterprise. you want to configure a RAID 5 array in the computer. you install three new SATA drives, then use the RAID controller integrated into the motherboard to define a RAID 5 array using them. when you boot the computer, windows does not show the logical RAID drive you just created. what should you do?

install the drivers for the motherboard RAID controller

which of the following statements accurately describes how a modem works?

it demodulates analog data from a telephone network into digital pc data. it modulates digital data from the pc into analog data and transmits it on a telephone network.

you have just build a new system from scratch. you turn the computer on but the system boot fails and sounds a beep code. which of the following is most likely cause?

memory not installed or not detected

which of the following features should you look for when selecting a vacuum cleaner for your cleaning kit?

non-static generating one that blows as well as vacuums

which of the following components requires special disposial procedures to comply with environmental guidelines?

notebook battery

you are connecting an older, dot matrix printer to a computer. the printer's cable is a d-shaped connector with 25 pins. which port type does the printer connect to?

parallel port

which of the following is an error detection technique that can detect errors with only one bit?

parity

which of the following terms refers to a network resource sharing model that uses access control lists saved on each computer?

peer-to-peer

You want to use a multimeter to test a power supply's voltage. to do this, you need to turn on the power supply. which of the following pins on the power supply's 24-pin ATX connector can be bridged to turn on the power supply?

pins 16 and 17 pins 15 and 16

you have added two new hard disks to a windows computer. the disks are configured as basic disks which of the following could be configured on these disks?

primary partitions extended partitions with logical drives

A user calls to complain that her computer is behaving erratically. some days it functions correctly, other days it crashes frequently. sometimes, the system wont boot at all. you open the system case and notice the following: > two of the mounting screws are missing from the system hard disk drive. > the system uses memory modules from several different manufactures with mismatched capacities. > several capacitors on the motherboard are bulged and have a brown liquid oozing from them. > the chassis fan on the front of the case is oriented to blow air into the system. what should you do?

replace the motherboard.

you test installing a second CPU. you remove the terminating resistor from the second CPU slot, insert the cpu and perform your testing. upon conclusion of the test you remove the second CPU and find that your system no longer boots up properly. how can you correct this situation?

replace the terminating resistor in the slot that was occupied by the second CPU.

an 8-port switch receives a frame on port number 1. the frame is addressed to an unknown device. what will the switch do?

send the frame out ports 2-8.

you want to set up a windows system to also be able to boot to linux. to be able to dual boot, the system needs a partition on which to install linux. however, you dont have an extra hard disk that can be used for the linux partition. the existing disk has no unpartitioned space available, but it has about 300 GB of free space. which of the following disk management operations will best prepare your hard disk for dual boot?

shrink the primary partition

which of the following are improvements over BIOS that are provided by UEFI?

supports drives larger than 2.2 TB Faster startup times supports 64-bit firmware device drivers

Which of the following BEST describes the purpose for which loopback plugs are used?

testing ports by returning output signals as input.

you are installing an updating driver for a hardware device on your system. A dialog box displays indicating that microsoft has digitally signed the driver you are installing. what benefits does driver signing provide?

the driver has been tested by Microsoft. the driver file has not been altered.

When you try to boot your computer, it hangs after POST. when you access the UEFI setup program, you see that the date is several years behind , and the time is set to 12:01 am. which of the following is the MOST likely cause of this behavior?

the motherboard battery has failed.

you need to trace the route that a CAT 6 UTP cable takes through the ceiling and walls of your building. which tool should you use?

tone generator

you have an extra disk on your system that has three primary partitions and an extended partition with two logical drives. you want to convert the partitions to simple volumes, preferably without lost and data. which of the following is the best step to perform?

upgrade the disk to a dynamic disk.

you have a desktop computer that uses a 250-watt power supply. you recently added four-disk RAID 10 array to the system, and now it spontaneously shuts down.

upgrade to a power supply that provides more watts.

you want to combine storage space from two different hard disks into a single logical storage unit on your windows computer which of the following is the best step to perform?

use dynamic disks and a spanned volume

which component of windows prompts the user for credentials or permission to minimize the dangers of unintended software installations?

user account control (UAC)

You place a new disc in an optical drive, and then double-click the drive in the operating system's file browser interface. an error message appears stating that the drive is not accessible. what should you do?

wait. then try again.

which of the following conditions would prevent you from using a guid partition table (GPT) when setting up a disk drive?

you're setting up the drive to boot windows 7 on a computer that uses traditional bios.