A+ practice

signs of a CMOS battery failing

BIOS settings along with date & time get set to factory default.

In the US only channels ___ through ___ are allowed

1, 11

When setting up a SOHO in a moderately sized building, you need to install 802.11n access points to allow wireless devices throughout to access the network on the 2.4 GHz band. Which channels should you use to ensure that you have non-overlapping channels in the United States? a. 1,6,11 b. 2,7,12 c. 1,2,3 d. 1,5,15

1,6,11

DDR had

184 pins and worked between 2.5 and 2.6 volts

A standard desktop PC that may use a full range of expansion cards and peripherals is typically rated to use a PSU (Power Supply Unit) around what amount of wattage? a. 100-200 W b. > 300 W c. 200-300 W d. < 100 W

200-300 W

The ATX12V version 2 PSU (Power Supply Unit) specification uses what type of connector to power a motherboard? a. 24 pin P1 b. 2-pin molex c. 15 pin SATA d. 6 pin PCIe

24-pin P1

DDR2 has

240 pins and works between 1.8 and 1.9 volts making it more energy efficient than its predecessor.

A user needs to upgrade Random Access Memory (RAM) and is looking for Double Data Rate 3 (DDR3) RAM, what is the pin count and voltage of this type of RAM? a. 184 pins, 2.5 to 2.6 V b. 240 pins, 1.8 to 1.9 V c. 240 pins, 1.35 to 1.5 V d. 288 pins, 1.2 V

240 pins, 1.35 to 1.5V

a 5.1 digital system (Dolby digital or digital theater system [DTS]) has

5 speakers and a subwoofer (which is the .1 in 5.1)

Your company is running Intel Core 2 Duo processors and wants to upgrade the motherboards. Which of the following factors will determine the type of motherboard you purchase? A. A motherboard with a TPM 2.0 chip B. A motherboard with Intel chipset C. A motherboard that supports 16 GB of DDR3 RAM D. A motherboard with x16 PCIe expansion slots

A motherboard with Intel Chipset

A user submits a ticket due to no network connectivity. After questioning the user, you verify that they are unable to access either local resources or the Internet. Which of the following actions do you take? (Select all that apply.) a. check the LED lights on the NIC b. bring a "known good" cable c. Verify the IP configuration d. Reset internet explorer settings

A&B&C

which of the following describe network services that are provided by servers? a. assigns IP addresses automatically when hosts connect to the network b. allows users to access resources using a FQDN c. allows users to edit spreadsheets and run advanced calculations d. provides an access control system

A&B&D

For systems that require a high level of reliability, what memory feature is available? A. ECC B. non-parity C. Parity checking D. DDR3

ECC

You need to increase the amount of Random Access Memory (RAM) in a workstation. Which of the following do you need to consider? (Select all that apply.) a. ECC or non-parity b. DIMM format c. motherboard FSB speed d. size of the HDD

ECC or non-parity; DIMM format; Motherboard FSB speed

Your company wants to use USB 3.0 compatible external hard drives and needs to update existing workstations. As a system administrator, which of the following changes will you recommend to save the most time and money? A. Install an expansion card. B. Replace the motherboard. C. Install a riser card. D. Install SATA adapters

Install an expansion card

You replace the Network adapter card on a user's laptop computer. To ensure maximum compatibility on various networks, you need to make sure the adapter is set to "autonegotiate" the network settings. How do you open the dialog box to verify this setting? a. Locate the device in the Device Manager, select Properties, and choose the Advanced tab. b. Locate the device in the Device Manager, select Properties, and choose the General tab. c. Locate the device in the Device Manager, select Properties, and choose the Details tab. d. Locate the device in the Device Manager, select Properties, and choose the Driver tab.

Locate the device in the device manager, select properties, and choose the advanced tab.

Which network connector is commonly used to connect telephones and connect to DSL networks? A. HDMI B. RJ-45 C. RJ-11 D. VGA

RJ-11

Which of the following is the current standard for connecting internal mass shortage devices to a PC motherboard? A. SATA B. PCIe C. PATA D. SCSI

SATA

A client wants to build a custom desktop computer that loads applications quickly, as well as be able to boot into Windows faster. Which of the four components, whether upgraded or a new purchase, will fulfill this need? a. SSD b. 15k HDD c. GDDR5 GPU d. Quad Core CPU

SSD

An expansion card can...

be easily inserted onto a motherboard, and only requires removal of the workstation chassis to complete. Expansion cards are abundant and affordable.

When setting up the network for a Small Office Home Office (SOHO) network, you want to ensure that guests can easily find and connect to the network. What settings should you check? (Select all that apply.) a. broadcast the SSID b. Enable QoS c. Configure WEP encryption d. enable DHCP

broadcast the SSID & enable DHCP

A Virtual Desktop Infrastructure (VDI) has been installed and configured. Users are ready to receive and use their thin clients. Which actions are commonly performed by admins to set up a thin client? (Select TWO.) a. install thin client OS b. install a small form factor GPU c. configure the connection manager/broker d. set up dual monitors

install thin client OS & configure the connection manager/broker

IDE

integrated drive electronics

Near Field Communications (NFC)

is a peer to peer version of Radio Frequency Identification (RFID).

Extended Page Table (EPT)

is a second generation virtualization extension created by Intel that uses SLAT (second level address translation) technology. It improves MMU (memory management unit) which handles shadow page tables that translates virtual memory to physical memory.

What is the function of a LAN? a. it works at the same layer as a switch making a physical link with the ISP's network b. it divides the network into multiple networks c. it joins a network using one type of media with a network using another type of media d. it converts the client's private internet protocol IP into a public IP address

it divides the network into multiple layers

KVM stands for

keyboard, video, and mouse

A user calls to report that content on a computer's screen suddenly appears oversized. Which of the following are most likely to cause this issue? (Select all that apply.) A. Magnifier in use B. Dead Pixels C. Loose Cabling D. Low resolution

magnifier in use & low resolution

which of the following are characteristics of routers, but NOT characteristics of modems? a. must be matched to the type of link b. make decisions about forwarding between two networks. c. make a physical network link with the ISP's network d. can divide a physical network into multiple networks

make decisions about forwarding between two networks; can divide a physical network into multiple networks

ECC memory cannot be paired with

non-parity memory and must be supported by the motherboard.

Using channels 1,2, & 3 does

not allow 5 MHz of spacing between channels.

Although they have the same pin count, DDR2 and DDR3 are

not compatible. The modules and slots are keyed differently to prevent a module from being inserted in an incompatible slot

The size of the Hard Disk Drive (HDD) does

not effect how fast a processor runs or the type of memory required to support it.

non-parity memory does

not perform any error checking, except for the startup memory count. Is used by most desktops.

PATA

parallel advanced technology attachment

The company you work for allows users to request an additional Solid State Drive (SSD) by submitting a help desk ticket. Occasionally, after receiving the upgraded computer, some users will report that they are unable to see the new drive from the File Explorer on their Windows workstation. What has the technician most likely forgotten to do with these instances? a. install the device driver b. configure RAID array c. partition the new drive d. restart the computer

partition the new drive

A user reports hearing a clicking sound and received an error message when saving a file. What actions do you take? (Select all that apply.) a. run the chkdsk /f program b. run the bootrec /fixmbr program c. perform a SMART check d. replace the disk

perform a SMART check and replace the disk

A SATA adapter usually comes in cable form with a USB connector at the other end... This makes it

possible to connect a SATA hard drive outside of the computer to a USB port.

You power on your IBM PC and you hear a continuous beep during post. What seems to be the problem? a. normal post- system is ok b. power supply, motherboard, or system memory problem c. power supply, motherboard, or keyboard problem d. display adapter error

power supply, motherboard, or system memory problem

thick clients are known as

regular fully installed work stations

Using Media Access Control (MAC) address filtering is a security measure that

restricts network access using either a whitelist allowed MACs or a blacklist of prohibited MACs.

Which peripheral is commonly used at shopping malls and retail stores for customers to authorize a payment transaction after swiping a credit card? A. NFC device B. Chip reader C. signature pad D. smart card reader

signature pad

SCSI

small computer systems interface

Which of the following peripheral devices is part of a 5.1 digital system? a. microphone b. speaker c. webcam d. camera

speaker

Frame rate is a benchmark...

test for a GPU and is more important for gaming or animation

Serial Advanced Technology Attachment (SATA) is

the current standard means of attaching internal drives to a computer. The SATA cables are terminated with a 7-pin connector.

in the 2.4 GHz band, 1,6, and 11 are

the only non-overlapping channels which provide the necessary 5 MHz of spacing between channels.

You are configuring a virtual desktop infrastructure (VDI) and need to configure the workstations for users. What type of computers will you be configuring? a. thick clients b. thin clients c. virtual desktop environment (VDE) d. windows 10 enterprise

thin client

Which peripheral connector serves as a display interface and a peripheral interface (like USB), and is primarily used on Apple workstations and laptops? A. Lightning B. USB 3.0 C. Thunderbold D. DVI

thunderbolt

Users in your office complain of latency on the network. Which Windows networking tool can you use to investigate network paths? a. tracert b. ping c. ipconfig d. netstat

tracert

You work for a company that sells computer components. A customer recently purchased and installed a new graphics processing unit (GPU) on a Microsoft Windows PC for a gaming rig, but now the customer reports motion trails on the screen while playing games. Which actions do you recommend the user take? (Select all that apply.) A. replace the GPU B. Update the GPU driver C. Install the latest version of DirectX D. reseat the video card

update the GPU driver; Install the latest version of DirectX

Double Data rate 3 (DDR3) is an

updated type of Synchronous Dynamic Random Access Memory (SDRAM). This is not a feature of memory; rather it is a type of memory.

You work for a small startup and are setting up the Small Office Home Office (SOHO) network security on the router. What actions should you take to improve the router's security on the network? (Select all that apply.) a. enable UPnP b. use MAC filtering c. turn on windows firewall d. configure content filtering

use MAC filtering & configure content filtering

A failed video card driver could cause problems such as:

visual artifacts, loud fan sounds, and black screens.

The general tab of the device properties box tells you

whether the device is working and allows you to enable or disable it.

Which of the following devices attaches to the motherboard of a device to allow the device to communicate wirelessly on a Wi-Fi network? a. range extender b. wireless access point (WAP) c. router d. wireless network card

wireless network card

DDR3 also has 240 pins but

works between 1.35 and 1.5 volts

A user reports their workstation is continuously rebooting. After arriving at the user's desk, you suggest the problem may relate to newly installed GPUs (Graphics Processing Units). What do you do next? A. you establish a theory of probable cause B. you test your theory and reseat the GPU C. you verify and document the solution D. you escalate the problem

you test your theory and reseat the GPU

Which network type is characterized by long range transmission media connecting geographically diverse users? a. LAN b. VPN c. WAN d. PAN

WAN

For which of the following scenarios would you use Remote Desktop Connection instead of Windows Remote Assistance? (Select all that apply.) a. a user wants to walk you through the steps leading to an error. b. you need to log into a remote machine using network administrator credentials c. you need to gain control of a remote machine and lock the local side. d. a user wants to send you a request for assistance.

You need to log into a remote machine using network admin credentials; you need to gain control of a remote machine and lock the local side.

Which wireless communications protocol is an open source technology used primarily for home automation and operates in the same frequency band as many Wi-Fi networks? a. Z-wave b. ZigBee c. Bluetooth D. NFC

ZigBee

clock speed is

a basic measure of performance of a GPU.

Dual Inline Memory Modules (DIMMs) have

a certain number of pins and notches that line up to the motherboard to prevent the memory module from being inserted incorrectly.

Trusted Platform Module (TPM) is

a chip on the motherboard that works with bitlocker technology to securely store the keys that are used to encrypt the hard drive contents.

DirectX is

a graphical application programming interface (API) that allows the software to interact with the GPU.

Z-wave

a proprietary wireless communications protocol used primarily for home automation

Which of the following is a dial up service and is a digital circuit-switched technology for voice, video, and data? a. DSL b. Fiber optic c. ISDN d. cellular

ISDN

After powering on your workstation, you notice the system time has reset. You reboot the workstation and notice BIOS (basic input/output system) settings have also reset. What seems to be the issue? a. Workstation experienced a power loss from the PSU (Power Supply Unit). b. Operating System boots to incorrect disk. c. Motherboard is damaged by Electrostatic discharge. d. CMOS battery is failing.

CMOS battery is failing

What second generation virtualization extension must you enable on your Intel chip in order to run VMware's hypervisor virtualization technology? a. extended page table (EPT) b. Rapid Virtualization Indexing (RVI) c. Virtualization Technology (VT) d. AMD-V

Extended page table (EPT)

An industrial designer is looking to improve the performance of Computer Aided Design (CAD) software. You recommend adding a Graphics Processing Unit (GPU) to the designer's computer. With which of the following does the GPU need to be compliant? A. Graphics application programming Interface (API) B. Clock speed C. digital interfaces D. frame rate

Graphics API

Which of the following cable types supports only digital signals and is currently the most common cable type among consumer electronics? A. VGA B. DVI-D C. HDMI (Type A) D. DisplayPort

HDMI

SMART check

Self-monitoring, analysis, and reporting technology check

You are upgrading the sound card for a home theater computer. Which of the following features should you look for in a new sound card? (Select all that apply.) A. on board memory B. Sony/Phillips Digital Interface (S/PDIF) Jack C. Support for MIDI D. Support for multiple channel output

Sony/phillips digital interface (S/PDIF) jack & Support for multiple channel output

Your organization wants to implement BitLocker disk encryption on all company Windows laptops. Which system component normally stores the BitLocker encryption key? a. secure boot b. UEFI c. TPM d. LoJack

TPM

An I/O adapter is typically for

USB or SATA connectors for internal storage.

A projector is being set up for a meeting, and the presenter calls you to report that no image is displayed on the screen. When troubleshooting the issue, which of the following actions do you take? (Select all that apply.) A. make sure the projector is plugged in and powered on B. check that the cable is connecting the projector and the device C. check the input source D. try the projector with a different input device

all of the above

A typical consumer purchases a set of smart light bulbs. The set comes with a centralized connection device and basic instructions for installation. For most of these types of devices, what steps may be involved in configuring them? (Select all that apply.) a. train the digital assistant b. connect the hub to the wifi c. connect to the hub d. use the hub to discover devices

all of the above

A riser card is meant to provide...

another way of attaching expansion cards that cannot fit inside of a chassis.

When troubleshooting connectivity issues for a user's computer, which of the following tools can help establish if there is a physical problem with the Ethernet cable or port? (Select all that apply.) a. cable tester b. loopback plug c. punch-down tool d. cable stripper

cable tester & loopback plug

a S/PDIF (Sony/Phillips digital interface) jack is most often used to

carry digital data for surround sound speaker systems and is included on high-end sound cards

Configuring Quality of Service (QoS) can prioritize

certain types of traffic over others.

You recently installed a new video card on a desktop computer. After editing videos on the computer, you receive a Windows Blue Screen. Which approach is a valid first troubleshooting step? a. check for overheating b. replace the video card c. increase the RAM d. power down the computer

check for overheating

Which of the following cloud computing models has a cost that is shared between several organizations or groups? a. hybrid b. private c. public d. community

community

A SATA boot disk should generally be connected to the lowest numbered port, but the BIOS boot order is..

configurable to select any attached SATA hard drive to boot first

You are configuring the router for a Small Office Home Office (SOHO) network that uses Voice over Internet Protocol (VoIP). The company wants to make sure teleconferences run smoothly, without network issues. What is the quickest and most cost-efficient way to ensure maximum availability of network resources for the meetings? a. block social media sites b. configure QoS c. Recommend a separate network for teleconferencing d. use a separate channel

configure QoS

A second Serial Advanced Technology Attachment (SATA) hard drive that has a bootable operating system (OS) was installed within a workstation computer. The user wants to boot to the other OS that is now available, and still access data from the first SATA hard drive. What setting must be configured to ensure access to the secondary OS? A. Configure the boot order B. Enable the secondary SATA data port C. Enable the additional SATA power cable D. disable the other SATA hard drive

configure the boot order

A Peripheral Component Interconnect Express (PCIe) slot can be used to

connect to a high performing solid state drive; however it is not the current standard to connect internal mass storage devices in this way

The details tab of the Device Properties dialogue provides

information including device firmware version number

Your workstation needs additional RJ-45 network connections. Which of the following changes do you implement to meet this need? A. Install an I/O adapter B. Install a Wi-Fi adapter C. Install a network interface card D. Install a PCI card

install a network interface card

the driver tab of the device properties dialog has options to

disable and roll back the driver.

A server malfunction has been resolved after replacing a failed hard drive. Enterprise services have been restored. What is the final step of the troubleshooting process? A. Purchase a new hard drive for spare B. establish a theory of probable cause C. verify full system functionality, and if applicable, implement preventative measures D. document findings, actions, and outcomes

document findings, actions, and outcomes

You want to automatically boost the performance of your gaming system. What can you do to your CPU (Central Processing Unit) to achieve this? a. Increase the L1 Cache. b. Enable overclocking. c. Lower clock speed. d. Enable Hyperthreading.

enable overclocking

Your organization wants to deploy Windows Images over the LAN (Local Area Network) to user workstations. What two settings should be configured on the workstation motherboards in order to immediately boot each workstation from the network? (Select all that apply.) a. set the boot mode to BIOS b. enable primary network adapter with PXE c. set first priority boot device to network/PXE d. set the boot mode to UEFI

enable primary network adapter with PXE; set first priority boot device to network/PXE

ECC means

error checking and correcting and is available for systems that need a high level of reliability. It detects and corrects single-bit errors and detects 2, 3, or 4 bit errors, sending a warning rather than correcting the errors.

Which of the following network devices performs microsegmentation by providing an end-to-end virtual circuit between two network nodes? a. wireless network card b. router c. hub d. ethernet switch

ethernet switch

thin client is a computer that

has just enough resources to boot to connect to a server that holds a remote and virtualized environment.

Which of the following network devices in considered a legacy device and is used to implement a star topology? a. hub b. router c. ethernet switch d. bridge

hub

Zigbee

ia an open source competitor to Z-wave. It is primarily for home automation and operates in the 2.4 GHz frequency band, causing it to have a risk of interference with other devices operating on this frequency band.

A Solid State Drive (SSD) provides

immediate access to applications and operating system data from disk, as it uses faster technology than found in traditional rotational hard drives.