5 Flashcards by AlEX 000,000,000,000

what 802.11 standards function only on the 5GHz band

the 802.11ac is 5GHz only

11n can do 2.4GHz and 5GHz
11g is 2.4 only
11i is a security standard called WPA2

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what encryption protocol offers the best security

WPA2

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what device enables you to extend the capabilities of a wireless network?

wireless access point WAP

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which mode do all the wireless devices connect directly to each other?

in ad hoc mode networks

all the nodes connect directly to each other

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what determines the name of a wireless network

the SSID determines the name

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what technology enables 802.11n networks to make multiple simultaneous connections and thus improve speed over previous wifi standards?

the multiple in / multiple out MIMO technology implementing multiple antennas enables 802.11n networks to run at much faster speeds than previous wifi networks

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whats the top speed for data transfers using IrDA technology

4Mbps

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bluetooth technology enables computers to link into what sort of network?

personal area network

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what is the name for the common omni-directional antennas found on wireless access points?

dipole antennas

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user installed a wireless network in the house placing the access point in the kitchen the centralized location. the wifi works fine in the living and dining room but goes completely out in the bedroom. what is most likely the problem

watch out for microwave ovens, refrigerators, and pipes in the walls. they can interfere with wifi signals and create dead spots

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name the slowest internet connection

Dial up

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what port does POP3 use?

Post Office Protocol 3
POP3
uses port 110

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what advantage does dial up have over DSL

DSL has a 18,000 feet from main switch limit
leaving people in rural areas out of luck
Dial up jsut requires a phone line

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what protocol do you use to send email

Simple Mail Transfer Protocol SMTP

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what protocols receive email

Internet Message Access Protocol IMAP

or POP3

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what advantage does satellite have over cable for connecting to the internet

satellite cuts you loose from wires!

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Remote Desktop Protocol RDP uses port —-

Hypertext Transfer Protocol Secure HTTPS uses port —-

Remote Desktop Protocol RDP uses port 3389

Hypertext Transfer Protocol Secure HTTPS uses port 80

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what command often enables you to diagnose TCP IP errors such as connection problems?>

ping command to diagnose TCP IP problems

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what cellular data technology is considered 4G?

LTE

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what programs enable you to access and work on a remote computer from your local computer?

Remote Desktop Connection and Telnet

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which of following are good ideas when it comes to batteries

keeping batteries in the freezer is good in theory, not in practice. All batteries contain toxic chemicals and should NEVER be treated like regular trash

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tablet PCs come in which of the following form factors?

convertible and slate form factors

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expressCards connect to which buses

PCI Express bus or the USB bus

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user laptop has a DVI connector to a connected to a projector. the laptop shows the presentation but the projector looks on but not working

press the function key combination for cycling through monitor modes

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what is the benefit of adding RAM to laptop that uses shared memory?

improved overall system performance

what display type will you commonly find on portable PC

LCD and LED displays

user complains that his aging windows 7 laptop stiil isnt snappy enough after upgrading the RAM what might improve system performance?

replacing the HDD with SSD

user likes his laptop but complains the wireless seems slow compared to all the new laptops. on further inspection u determine his laptop runs 802.11n what can be done to improve his network connection speed?

replace the 802.11n NIC with a 802.11ac NIC

user successfully replaced the display on a laptop but the customer called back almost immediately complaining that the wireless didnt work. what could be the problem

a disconnected antenna

user has brand new laptop complain its giving them headaches. what could the problem be?

dimming the screen on a LED monitor could cause flickering which causes headaches

what is used in mobile devices to convert analog video and sound to digital video and sound

digitizers convert analog video and sound to digital video and sound, or to interpret analog signals associated with touch movement on a screen into digital equivalents

what type of display responds to the difference in electrical potential between you and the screen

a capacitive touchscreen display responds to the difference in electrical potential between the user and the screen

what mobile device screen technology uses no backlight

OLED technology does not use a backlight

what can a government use to determine your location at a specific time as long as youre using your mobile device?

geotracking can locate you and your GPS equipped mobile device

what are the steps involved in pairing a bluetooth keyboard with a tablet

enable bluetooth on the tablet, turn on the bluetooth device, find the bt device in the settings, enter PIN code if asked

which of the following is a 15 digit number used to uniquely identify a mobile device that connects to a cellular network

the international mobile equipment identity IMEI number

a client calls and is upset they lost their iPad. the mobile device has literally thousands of client records, including business addresses, email addresses, phone number, and, in some cases, credit card information. what should he do first

user just purchased very expensive comic book and paid for it using the stored credit card information on his smartphone. what technology did he use to make the transaction?

using Near Field Communication NFC technology

what information do you need to connect an android based tablet to an IMAP account

user name and password and the sending and receiving server addresses

which mobile OS enables developers to customize the user experience without restriction

Google Android is open source, enabling developers to create custom versions for their devices

what is legitimate reason a mobile device is running slowly

lack of storage space would be a legitimate reason a mobile device is running slowly

user has both gmail and a traditional SMTP/POP3 email account. wants to consolidate the traditional account into her Gmail account. where does she do this

add an account to the gmail, forward the emal in the traditional email server's setting in gmail.

user decides to add a traditional email app to get her email. what will they most probably need to configure the app

name of the SMTP server and the name of either the IMAP or POP3 email server

user notices her GPS map app give the error GPS coordinates not available. what should they try first

user needs to move to a place where she can get a good gps signal

youve lost your iphone. what would you use to try to find it?

apple's iphone uses the Find My iPhone feature of iCloud

user wants to play WoW on his desktop. he logs in and then the game asks for a code that is generator by an authenticator app on his on his android phone. this is an example of

using both a password and a security code is an example of multifactor authentication

jailbreaking an iphone gives access to the-

root

a great way to protect data on a removable media card is to

encrypt it

which mobile operating system requires a third party software firewall

only android requires a third party software firewall

users bringing personally owned mobile devices into an enterprise environment is called

users bringing personally owned mobile device into an enterprise environment is known as Bring Your Own Device BYOD

what mechanism is used by most inkjet printer to push ink onto the paper?

electroconductive plates to push ink onto the paper

with a laser printer, what creates the image on the photosensitive drum?

the laser imaging unit creates an image on the photosensitive drum

what is the proper order of the laser printing process

process, charge, expose, develop, transfer, fuse and clean is the proper process

on a dot matrix printer what physically strikes the ribbon to form an image

printwires physically strike the ribbon in dot matrix printers

which of these items are considered to be dot matric printer consumables

paper and ribbons

what part must be vacuumed or replaced periodically to prevent damage caused by the action of the corona?

the ozone filter should be periodically vacuumed or changed

what port type do most printers support?

youll find almost all non networked printers hooked up to USB ports

a standalone printer prints a test page just fine. but it makes gobbledygook out of your term paper. whats probably wrong

the application that is trying to print is probably configured wrong

what printing process uses heat sensitive plastic film embedded with various color dyes

dye sublimation printers use heat sensitive plastic film embedded with various color dyes

what tool would help you determine why a print job didnt print?

the printer spooler can help you determine why a print job didnt print

what is the process for using or manipulating people to gain access to network resources

social engineering is the process of using or manipulating people to gain access to network resources

what might offer good hardware authentication

smart cards

what tool would enable you to stop a user from logging on to a local machine but still enable him to log on to the domain

Local Security Policy to stop someone from logging on to a local machine

what hardware firewall feature enables incoming traffic on a specific port to reach an IP address on the LAN?

to open a port on your hardware firewall and send incoming traffic to a specific PC, use port forwarding

user downloaded a game off the internet and installed it, but as soon as they start to play it blue screens of death. upon rebooting he discovered that his documents folder had been erased. what happened

installed a trojan

what should mary set up on her wifi router to make it the most secure

set up WPA2

what tool would you use to enable auditing on a local level

enable through Local Security Policy

user dressed up in fake security guard uniform matching the ones used by the company and then walked into the company's headquarters with some legitimate employees in an attempt to gain access to company resources. what kind of attack is this?

this is called tailgating

the first day on the job, jill received a spreadsheet that listed approved software for users and clear instruction not to allow any unapproved software. what kind of policy must she follow

enforce Compliance to help keep the tech support calls at a minimum and the uptime for user at a maximum

edna wants to put a policy in place at her company to prevent or at least limit viruses. what policies would offer the best solution?

the best policy includes updating the software engine and definitions, scanning PCs regularly, and educating users

5 Flashcards

(70 cards)