Comptia A+ Certification

Front 1

If all computers on the network are in the same office, then the office is a _________.

Back 1

Local Area Network (LAN)

Front 2

Computers dedicated to providing resources to the other computer are called _________.

Back 2

Servers

Front 3

The layer of the OSI Model that manages the “look” of the data, including encryption and compression, is the __________ layer.

Back 3

Presentation

Front 4

The layer of the OSI Model responsible for establishing and maintaining communications between computers is the __________ layer.

Back 4

Session

Front 5

The OSI layer responsible for error checking is the ________ layer.

Back 5

Transport

Front 6

A network topology is which all computers are connected to a central device such as a switch is called a _________.

Back 6

Star

Front 7

The cable type with the longest range is________.

Back 7

Fiber-Optic

Front 8

Ethernet uses____________ to send information on the network.

Back 8

CSMA/CD (Carrier Sense Multiple Access/Collision Detection)

Front 9

As opposed to a WLAN, a Bluetooth network is referred as a _______________________.

Back 9

Wireless Personal Area Network (WPAN)

Front 10

The network connectivity device that can connect multiple networks to each other is a ____________.

Back 10

Router

Front 11

The language of communication spoken between computers on a network is called a ______________.

Back 11

Protocol

Front 12

The OSI Model layer responsible for putting frames on the wire is called the ______ layer.

Back 12

Physical

Front 13

TCP/IP is based on the _______________ model.

Back 13

United States Department of Defense (DoD)

Front 14

The seven layers of the OSI Model from top down are _____________.

Back 14

Application, Presentation, Session, Transport, Network, Data Link, Physical

Front 15

TCP/IP is a ___________protocol that operates at the ____________ layer of the OSI Model.

Back 15

Connection-Orientated, Transport

Front 16

Technology that allows electricity to be supplied over network cables is called _________________.

Back 16

Power over Ethernet (PoE)

Front 17

Which protocol in TCP/IP is responsible for resolving IP addresses to MAC addresses?

Back 17

ARP (Address Resolution Protocol)

Front 18

A simple hardware device that allows for longer cable runs is called a ___________.

Back 18

Repeater or Extender

Front 19

In order to communicate on a network, TCP/IP hosts must have a unique ____________ and valid __________.

Back 19

IP Address, Subnet

Front 20

Class A IP Addresses will have a first octet of between ________.

Back 20

1 and 126.

Front 21

APIPA Addresses are in the ______ range with a subnet mask of _______.

Back 21

169.254.0.0 to 169.254.255.255, 255.255.0.0

Front 22

FTP uses ports _____ and _____, and Telnet uses port ______.

Back 22

20.21.23

Front 23

The ___________protocol is used to send mail and operates on port _________.

Back 23

SMTP, 25

Front 24

A _________ server provides IP configuration information to clients on the network.

Back 24

DHCP (Dynamic Host Configuration Protocol)

Front 25

The address fe80::/10 is an example of an IPv6 _____________ address.

Back 25

Link-local

Front 26

Class B private IP Addresses are in the ________ range.

Back 26

172.16.0.0 to 172.31.255.255

Front 27

The ____________protocol is used to retrieve mail and operates on port _________.

Back 27

IMAP, 143

Front 28

Class C private IP Addresses are in the _______ range.

Back 28

192.168.0.0 to 192.168.255.255

Front 29

A 10BaseT network uses __________ cabling and can transmit data at __________ (speed).

Back 29

Twisted Pair (or unshielded twisted pair), 10Mbps

Front 30

The four common types of broadband are ____________.

Back 30

DSL (Digital Subscriber Line), cable, satellite, and fiber-optic

Front 31

Two examples of 4G technology are ___________ and _________.

Back 31

WiMAX, LTE

Front 32

The wireless networking standard 802.11a operates at ________ (frequency) and supports ______________ (speed).

Back 32

5GHz, 54Mbps

Front 33

Firewalls filter packets based on a set of rules called ______________.

Back 33

An ACL (access control list)

Front 34

The wireless networking standard 802.11n operates at ________ (frequency) and supports ______________ (speed).

Back 34

2.5GHz and 5GHz, up to 250Mbps

Front 35

UTP cable has a maximum segment length of ___________.

Back 35

100 meters

Front 36

The most secure encryption protocol for 802.11 is _________________.

Back 36

WPA2

Front 37

The server that translates between private nonroutable IP addresses and public IP addresses is ______________.

Back 37

Network Address Translation (NAT)

Front 38

Wireless networks use _____________ to identify themselves.

Back 38

SSIDs

Front 39

WPA2 employs what security method?

Back 39

AES-CCMP

Front 40

What type of laptop adapter combines the functionality of PCIe and USB 2.0/3.0

Back 40

ExpressCard

Front 41

The component of the laptop’s video system responsible for sending the video signal is the _____________.

Back 41

Video Card

Front 42

If you want to plug your laptop into a power outlet in your car, you need a __________ power adapter.

Back 42

DC

Front 43

Mini PCIe cards have ___________ connectors.

Back 43

52-pin card edge

Front 44

Where can you obtain laptop service manuals?

Back 44

From the manufacturer’s website

Front 45

What step of the EP print process uses a laser to discharge selected areas of the photosensitive drum, thus forming an image on the drum?

Back 45

Writing

Front 46

Name the three components of an LCD.

Back 46

Inverter, screen, backlight

Front 47

The last step in the EP print process is __________.

Back 47

Cleaning

Front 48

The part of the LCD that is responsible for providing enough light is called what?

Back 48

Backlight

Front 49

Which voltage is applied to the paper to transfer the toner to the paper in an EP process laser printer?

Back 49

+600VDC

Front 50

Bubble-jet and laser printers are examples of ___________ because they receive their print job instructions one page at a time.

Back 50

Page Printers

Front 51

The seven steps in the EP printing process, in order, are?

Back 51

Processing, Charging, Exposing, Developing, Transferring, Fusing, and Cleaning

Front 52

Multipart forms are used with this type of printer.

Back 52

Dot Matrix

Front 53

_____________ are examples of print communication languages.

Back 53

Printer Command Language (PCL), PostScript (PS), and Graphics Device Interface (GDI)

Front 54

With the EP process laser printers, the laser discharges the charged photosensitive drum to ______________ VDC.

Back 54

-100

Front 55

What service was developed by Apple to let iPads and iPhones print without the need to install a driver?

Back 55

AirPrint

Front 56

What is the function of the corona assembly?

Back 56

The corona assembly gets the toner from the photosensitive drum onto the paper.

Front 57

Consistently light or faded characters on output from a dot-matrix printer likely indicates what?

Back 57

Printer ribbon is old and needs to be replaced.

Front 58

What is the first step in the EP printing process?

Back 58

Processing

Front 59

Unevenly spaced character in output from a dot-matrix or bubble-jet printer could indicate what?

Back 59

A problem with the stepper motor

Front 60

A paper jam in a bubble-printer is usually caused by what two things?

Back 60

Worn pickup rollers or the wrong type of paper

Front 61

What causes image smudging from a laser printer?

Back 61

The fuser isn’t heating the toner and fusing it into the paper.

Front 62

Pin 1 on a laser printer’s power connector should supply what voltage?

Back 62

+5V

Front 63

When Windows quits unexpectedly, you may get a _________.

Back 63

Blue Screen of Death (BSoD)

Front 64

What are three ways you can manually configure your laser printer’s IP address?

Back 64

Through the control panel on the printer, using Telnet, and using management software on your computer

Front 65

The diagnostic routine built into the BIOS is called __________.

Back 65

Power-on Self-Test (POST)

Front 66

The process that a bubble-jet printer goes through after installing a new print cartridge is called what? ______________

Back 66

Printhead Alignment

Front 67

Two types of devices used to keep computers cool are?

Back 67

Cooling Fan and Heat Sinks

Front 68

What causes vertical white lines on the output of a laser printer?

Back 68

Foreign Matter (more than likely toner) caught on the transfer corona wire

Front 69

The line of print jobs is called the ___________.

Back 69

Print Queue

Front 70

The service that formats jobs for the printer is called the __________.

Back 70

Print Spooler

Front 71

Which RAID level provides no fault tolerance?

Back 71

RAID 0

Front 72

If the laptop will not power up on battery power, you should try ____________.

Back 72

Plugging into an AC adapter

Front 73

What technology is built into hard drive to detect problems?

Back 73

S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology)

Front 74

If the video on a laptop is not working, you should plug in what?

Back 74

External Monitor

Front 75

What hardware tool is used to trace cables through the wall?

Back 75

Toner Probe

Front 76

To communicate on a TCP/IP network, which two things do you need?

Back 76

A unique IP address and a valid subnet mask

Front 77

What tool can be used to discover wireless network traffic?

Back 77

A WiFi Analyzer or wireless locator

Front 78

The command-line utility used to look at inbound and outbound TCP/IP connections on your computer is ____________.

Back 78

NETSTAT

Front 79

What tool is used to test a network card, without using a cable?

Back 79

Loopback Adapter

Front 80

The functional components of a chipset are known as __________ and ____________.

Back 80

Northbridge, Southbridge

Front 81

_______________ and _______________ modules both have 240 pins but are distinguished by the location of their keying notch.

Back 81

DDR2, DDR3

Front 82

ATX and ITX are examples of what?

Back 82

Motherboards Form Factors

Front 83

What are the two socket types that require little to no force during CPU installation?

Back 83

Zero insertion (ZIF) and land grid array (LGA)

Front 84

_________ is essentially software implemented in hardware.

Back 84

Firmware

Front 85

What should you apply between the CPU and Heat Sink to avoid overheating?

Back 85

Thermal compound, thermal paste, or thermal gel

Front 86

Two types of devices used to keep computer components cool are _____________ and _____________.

Back 86

Heat Sinks and Cooling Fans

Front 87

What in the name of a Blu-Ray disk indicates that it can be rewritten multiple times?

Back 87

DB-RE

Front 88

CPU Cache is most commonly implemented using what type of memory?

Back 88

Static RAM (SRAM)

Front 89

Name one of the common rotational speeds of a magnetic hard drive.

Back 89

6400rpm, 7200rpm, and 10,000rpm

Front 90

What two things are combined in a hybrid drive?

Back 90

A magnetic drive and a solid-state drive

Front 91

How much faster is the “1X” transfer rate of a DVD drive when compared to that of a CD drive?

Back 91

Nine times faster

Front 92

What does the e in eMMC stand for and refer to?

Back 92

It stands for embedded and indicates that the MMC memory card technology is embedded in the circuit board of the associated system

Front 93

Name three interfaces commonly used to attached external hard drives to a computer

Back 93

USB, FireWire, and eSATA

Front 94

Name three of the available memory card formats

Back 94

SD, micro-SD, mini-SD, xD, CF

Front 95

What is the capacity of a standard Blu-ray disc?

Back 95

25GB

Front 96

Name one of the standard DC voltages supplied by a power supply

Back 96

+3.3VDC, +5VDC, -5VDC, +12VDC, or -12VDC

Front 97

RCA and TOSLINK connectors are used with cooper and fiber, respectively, for what input/output technology family?

Back 97

Digital Audio

Front 98

_____ Drives can be inserted and removed with turning off the system

Back 98

Hot-swappable

Front 99

Thunderbolt is a combination of which two technologies?

Back 99

DisplayPort and PCIe

Front 100

What should you do for a mechanical mouse that causes the cursor to move erratically on the screen?

Back 100

Clean it

Front 101

A card with expansion slots on it that installs into a motherboard is known as a(n) _______ card.

Back 101

Riser

Front 102

The e in eSATA stands for ______, but the E in EIDE stands for ______.

Back 102

External, enhanced

Front 103

A(n) ____________ contrast ratio indicates that an LCD monitor reduces the power to the backlight to display darker images.

Back 103

Dynamic

Front 104

What input technology allows the touch of a finger or stylus to move the cursor and make a selection simultaneously?

Back 104

Touchscreen

Front 105

What is the digital version of YPbPr called?

Back 105

YCbCr

Front 106

What multimedia technology daisy-chains devices back to host and uses a messaging protocol to communicate musical information among devices?

Back 106

MIDI

Front 107

Three major types of pixel addressing in LCD screens are dual scan, passive matrix, and ______________.

Back 107

Active Matrix

Front 108

Which expansion bus type was the first to be able to share a single IRQ among two or more hardware components?

Back 108

PCI

Front 109

How many pins are on a standard (Type A) HDMI connector?

Back 109

19

Front 110

How many more pins does a dual-link DVI-D connector have than a single-link DVI-D connector?

Back 110

Six

Front 111

Name three custom computer configurations?

Back 111

CAD/CAM Design Workstation

Audio/Video Editing Workstations

Virtualization Workstations

Gaming PCs

Home Theater PCs

Thin Clients

Home Server PCs

Front 112

Between frame rate and refresh rate, which one is generally higher than the other?

Back 112

Refresh Rate

Front 113

What special modifications apply to graphics and CAD/CAM workstations?

Back 113

CPU enhancements, video enhancements, and maximized RAM

Front 114

Explain how pixel-electrode placement differs between TN and IPS?

Back 114

TN places the two electrodes on opposite sides of the LCD layer, while IPS places both on one side.

Front 115

What special modifications apply to A/V editing workstations?

Back 115

Video enhancements, specialized audio, and specialized drives

Front 116

The analog-only portion of a DVI-A connector has a flat ground blade surrounded by how many pins?

Back 116

Four

Front 117

What special modifications apply to virtualization workstations?

Back 117

CPU enhancements and maximized RAM

Front 118

_____has a resolution of 1920 pixels by 1200 pixels.

Back 118

WUXGA

Front 119

What special modifications apply to gaming PCs?

Back 119

CPU enhancements, video enhancements, specialized audio, and enhanced cooling

Front 120

What special modifications apply to home theater PCs?

Back 120

Video enhancements, specialized audio, special chassis, and TV tuner

Front 121

The smartphone known for its built-in hardware keyboard is the _____.

Back 121

Blackberry

Front 122

What special modifications apply to thin clients?

Back 122

They have little to no storage, but they must be able to run basic apps and the local OS

Front 123

Mobile devices with cell capabilities and touchscreens between 5” and 7” in size are often called what?

Back 123

Phablets

Front 124

What special modifications apply to home server PCs?

Back 124

Media streaming, file sharing, print sharing, gigabit NIC, and RAID

Front 125

What type of LCD technology de e-Readers use to conserve energy?

Back 125

Electrophoretic ink (E ink)

Front 126

The defining characteristic of a tablet computer is its ___.

Back 126

Touchscreen

Front 127

What is the name of the United States-based satellite navigation system?

Back 127

GPS

Front 128

Mobile devices with cell capability and screens less than 5” in size are most likely what?

Back 128

Smartphone

Front 129

GPS receivers calculate their position through a technique called _______.

Back 129

Triangulation

Front 130

How many GPS satellites are required to calculate location and elevation?

Back 130

4

Front 131

Maximum infrared distance is about how long?

Back 131

One Meter

Front 132

What is the name of the satellite signal for which civilian GPS receivers listen?

Back 132

Course Acquisition (C/A)

Front 133

NFC uses what type of signal to communicate?

Back 133

Radio Frequency (RF)

Front 134

What type of mobile devices can be considered extensions of smartphones and run apps?

Back 134

Smartwatches

Front 135

The maximum data rate of NFC is?

Back 135

424 Kbps

Front 136

What type of mobile device will track a user’s sleep patterns?

Back 136

Fitness Monitor

Front 137

What should you purchase to protect a mobile device from damage?

Back 137

A protective cover

Front 138

Two smaller USB connections often used by mobile devices are?

Back 138

microUSB and miniUSB

Front 139

Mini SDHC and Micro SDHC cards ca store up to how much data?

Back 139

32GB

Front 140

A network in which there are no dedicated servers is called a __________ network.

Back 140

Peer-to-Peer