A+ 801 Flash Cards
1
Q
Where can you enable hardware support for USB 1.1?
A
The BIOS.
2
Q
What is required on a Mother Board to support BitLocker?
A
A trusted platform module (TPM)
3
Q
What components are accessed by the North Bridge?
A
CPU, RAM, and graphics.
4
Q
What benefit is provided by a ZIF?
A
Zero insertion force socket makes installation of the CPU easier.
5
Q
What type of expansion cards are commonly used for high-performance graphics?
A
PCIe x16 (Or other PCIe card). PCIe is short for Peripheral Component Interconnect Express.
6
Q
Can a micro-ATX motherboard fit in a ATX case?
A
Yes, they are designed to fit in ATX cases and smaller.
7
Q
What type of computer will you find Express card/34 ports?
A
Express card/34 as well as /54s are used in Laptops.
8
Q
What type of computer will you find PCMCIA ports?
A
Generally they are found in laptop computers. PCMCIA stands for Personal Computer Memory Card International Association.
9
Q
What is provided by ECC RAM?
A
Error Correcting Code (ECC) RAM improves reliability and corrects memory errors.
10
Q
How are memory banks identified in a motherboard with blue or black slots?
A
Memory banks are identified by the same color slots. Both blue slots are one bank and both black slots are another.
11
Q
What type of RAM package is used in Laptops?
A
Small Outline Dual Inline Memory Modules (SODIMMs) are used in laptops.
12
Q
What speed is used when two DIMMs are installed in the same bank but they have different speed specifications?
A
The slower speed is used when two DIMMS have different speed specifications.
13
Q
What is the memory type of a PC10600 DIMM?
A
DDR3. The clock is 166 2/3 MHz and the formula is 166 x 4 x 2 x 64 / 8. For DDR2, it would require a clock of 333 MHz (333 x 2 x 2 x 64 / 8) but clocks that fast are not used with DDR2.
14
Q
Can you place DDR2 RAM into DDR3 sockets?
A
No. You cannot mix and match DDR memory.
15
Q
What type of expansion card is used to convert VCR tapes to digital for storage on a DVD?
A
A video capture card.
16
Q
What is used on many graphics cards to keep them cool?
A
Heatsink over the graphics processing unit (GPU) and possibly a fan.
17
Q
What error would most likely display if the CMOS Battery needs to be replaced?
A
Date and time not set
18
Q
Where would you typically modify the fan speeds for a system?
A
In the BIOS
19
Q
What is a TPM?
A
Trusted Platform Module (used with BitLocker to encrypt volumes)
20
Q
What software is needed for a new sound card?
A
Device drivers are the software used to allow the operating system to use hardware.
21
Q
What can be used to capture screen shots from a game console?
A
A video capture card.
22
Q
What common RAID types provide fault tolerance?
A
RAID-1 (mirror), RAID-5 (striping with parity), and RAID-10 (stripe of mirrors)
23
Q
What disk type is the least susceptible to shock damage?
A
Solid State Drives (SSDs) are the least susceptible to shock damage because they do not have any moving parts.
24
Q
What is the storage capacity of a DL DVD?
A
A dual layer DVD holds 8.5 GB of data (sometimes rounded up to 8.6 GB).
25
Name two common interfaces for external hard drives.
USB and external Serial ATA (eSATA) are two common interfaces for external hard drives
26
How can you control the drive hierarchy for PATA drives?
You use jumpers to control which drive is a master and which is a slave in parallel ATA (PATA) drives. When jumpered to cable select, the cable determines the drive hierarchy.
27
Name two common external hard drive interfaces that are hot swappable.
USB and external Serial ATA (eSATA) are two common interfaces for external hard drives and they are both hot swappable.
28
What does the error "Date and Time Not Set" indicate?
The CMOS battery needs to be replaced.
29
Name three components commonly used to keep a CPU cool.
A CPU is commonly kept cool with thermal paste, a heatsink, and a CPU fan.
30
Name the common socket types used by Intel processors.
Intel processors commonly use LGA 775, LGA 1155, LGA 1156, and LGA 1366 sockets.
31
Name the common socket types used by AMD processors.
AMD processors commonly use 940, AM2, AM2+, AM3, AM3+, FM1, and F sockets.
32
What Intel feature causes a single core to appear as two processors?
Hyperthreading causes each core within a processor to appear as two processors.
33
What type of connector is commonly used with RS-232 interfaces?
A DB-9 is most commonly used with RS-232 (serial) interfaces.
34
What external interface has a maximum speed of 480 Mbps?
USB 2.0 has a maximum speed of 480 Mbps.
35
How many connectors are commonly needed for the subwoofer and front channel speaker in a 5.1 sound system?
One connector is commonly shared for the subwoofer and the front channel speaker. It can be a tip ring sleeve (TRS) or RCA connector.
36
What type of power connector is often needed for a graphics expansion card?
PCIe 6-pin, 8-pin, or 6+2-pin connectors are often needed for a graphics expansion card.
37
What type of power connector is needed for a floppy drive?
Floppy drives use berg connectors.
38
What should you do if a fully functioning system cannot boot to a DVD?
Modify the boot sequence in the BIOS
39
What is MOST likely failing if a system takes a long time booting as it rediscovers the installed hardware each time it is restarted?
Replace the CMOS battery
40
What two keys would you MOST likely press to access the BIOS?
F2 or Del (delete) keys (these are most common but some systems use different keys)
41
What type of power connector is needed for a SATA hard drive?
Serial ATA drives use L-shaped power connectors.
42
What type of power connector(s) are needed for a PATA hard drive and a combo CD/DVD IDE based drive?
Parallel ATA (PATA) and IDE based drives use Molex connectors.
43
What voltages are provided by a typical desktop PC power supply?
A typical desktop PC power supply provides 3.3 VDC, 5 VDC, and 12 VDC.
44
What is a benefit of a liquid-based cooling system?
Liquid-based cooling systems are quieter than fans.
45
What are the primary hardware requirements that should be considered for a CAD system?
Computer Aided Design (CAD) systems require a powerful processor, high-end video, and maximum RAM.
46
What are the primary hardware requirements that should be considered for an A/V editing workstation?
An audio/video editing workstation requires a specialized audio and video card, a large fast hard drive, and dual monitors.
47
What are the primary hardware requirements that should be considered for workstation used to host multiple virtual machines?
A virtualization workstation requires maximum RAM and CPU cores.
48
What are the primary hardware requirements that should be considered for a gaming PC?
A gaming PC requires a powerful processor, a high-end video card with a specialized graphics processing unit (GPU), a high-quality sound system, and high-end cooling.
49
What type of PC or workstation is best for media streaming?
A home server PC is best for media streaming, file sharing, and print sharing.
50
What resolution should you use for an LCD-based monitor?
You should use the native resolution for liquid crystal display (LCD) and light emitting diode (LED) monitors.
51
When comparing LED-based monitors and plasma monitors, which one consumes the most power?
Plasma monitors consume more power than light emitting diode (LED) monitors.
52
What specification identifies the brightness of an overhead projector?
The lumens identifies the brightness of an overhead projector.
53
What does a VGA port look like?
A video graphics array (VGA) port has 15 pins staggered on three rows and accepts DB-15 connectors.
54
What type of data is delivered on a DVI-D cable?
A Digital Visual Interface Digital (DVI-D) cable delivers digital video. It does not deliver audio.
55
How many cables are used for component video?
Component video delivers the signal over three cables (sometimes called three physical channels).
56
What is used to share a single monitor with multiple computers?
A keyboard video mouse (KVM) device is used to share a single monitor with multiple computers. It also shares a single keyboard and a single mouse among these computers.
57
When installing new hardware, what software needs to be installed?
Device drivers are the software that allows the operating system to recognize and use hardware.
58
What type of connection is typically used with a touch screen LCD monitor to transfer the touch signals?
USB cables are typically used with a touch screen monitor to transmit the touch signals.
59
Where can you configure the boot sequence and voltage parameters for a CPU?
BIOS
60
What type of card is most common for high-end graphics in current computers?
PCIe (such as PCIe x16). AGP is used less today.
61
What type of systems most commonly use ECC memory?
High-end servers use error correction code (ECC) memory
62
What slots should you use when installing memory in a system with colored slots?
Matched memory sticks should be installed in the same color slots (such as black slots or blue slots). These colored slots indicate dual channel memory.
63
What are key hardware considerations when purchasing an expansion card for a system?
The bus type of an open slot, and power consumption of the new card.
64
What can you use to capture screen shots from a game console?
Video capture card
65
Which type of drive is typically the fastest?
Solid state drives (SSDs) they do not have any moving parts.
66
What does this statement describe: It uses multiple hard drives to protect against data loss and increase performance?
RAID configuration
67
What would you use to back up a very large database?
Tape
68
Where would you apply thermal paste?
Between the CPU and the heat sink
69
What is the purpose of thermal paste?
Transfer heat from the CPU to the heat sink.
70
What CPU brand uses the 1156 socket?
Intel
71
What CPU brand uses the F socket?
AMD
72
What CPU cooling system is the quietest?
Liquid-based
73
How many pins are in an RS-232 serial port?
Nine pins (shaped like a D)
74
How many pins are in a VGA port?
15 pins (in three rows of five)
75
What type of PC would you recommend to a user that plans to use a computer for only word processing?
Thin client
76
What type of PC would you recommend to a user that plans to run multiple desktop applications?
Standard thick client
77
What are the primary hardware requirements for a home server PC?
Gigabit NIC and RAID disk subsystem
78
What type of PC would you recommend to a user that plans to use a computer for only browsing the Internet?
Thin client
79
What does the .1 signify in a 7.1 sound system?
A subwoofer
80
What type of video connector is used by VGA?
DB-15 (three rows of five pins)
81
What is the purpose of plenum-rated cable?
Plenum-rated cable has a fire retardant jacket and is less likely to release hazardous fumes.
82
What type of cable is most commonly used for cable TV connections?
RG-6 coaxial cable is used for cable TV connections.
83
What type of cable supports the maximum transmission distance: SMF or MMF?
Single-mode fiber (SMF) supports longer transmission distances than multimode fiber (MMF).
84
What type of cable is used with POTS?
CAT 3 cable is used with the Plain Old Telephone Service (POTS).
85
What occurs if two systems are statically assigned the same IP address?
An IP address conflict occurs when two systems are statically assigned the same IP address
86
What is the purpose of DHCP?
Dynamic Host Configuration Protocol (DHCP) assigns IP addresses and other TCP/IP configuration information.
87
What should be checked if you see an address of 169.254.45.23
Dynamic Host Configuration Protocol (DHCP) should be checked for any address starting with 169.254.
88
What is used to assign an IP address if DHCP doesn't respond?
Automatic Private IP Addressing (APIPA) assigns an address starting with 169.254 if a Dynamic Host Configuration Protocol (DHCP) server doesn't respond.
89
What is the classful class of the address of 192.168.12.45?
An address starting with 192 is a Class C address.
90
What is the purpose of DNS?
Domain Name System (DNS) provides name resolution and can resolve user friendly names to IP addresses.
91
What differentiates the network portion of an IP address from the host portion of an IP address?
The subnet mask differentiates the network portion of an IP address from the host portion of an IP address.
92
What ports are used for email?
25, 110, and 143.
Simple Mail Transfer Protocol (SMTP) is used for outgoing email on port 25.
Post Office Protocol version 3 (POP3) is used for incoming email on port 110.
Internet Message Access Protocol (IMAP) uses port 143.
93
What ports are used by web browsers?
80 and 443. Hypertext Transfer Protocol (HTTP) uses port 80 and Hypertext Transfer Protocol Secure (HTTPS) uses port 443.
94
What is SFTP used for?
Secure File Transfer Protocol (SFTP) is used to securely transfer large files.
95
What port does RDP use?
Remote Desktop Protocol (RDP) uses port 3389.
96
What is the maximum transmission speed and base frequency used by 802.11a?
802.11a has a maximum transmission speed of 54 Mbps and a base frequency of 5.0 GHz.
97
Which wireless standard has the shortest transmission distance?
802.11a has the shortest transmission distance and 802.11n has the longest transmission distance.
98
Which wireless standard has minimum maximum transmission speed?
802.11b has the minimum transmission speed at 11 Mbps and 802.11n has the maximum transmission speed at 150 Mbps, 300 Mbps, or 600 Mbps.
99
Which wireless encryption method is the weakest?
Wired Equivalent Privacy (WEP) is the weakest of the three testable wireless encryption methods.
100
Where should a gaming server be placed so that it is accessible from the Internet but also has a layer of digital security?
A demilitarized zone (DMZ) is a perimeter network used to protect Internet facing servers such as a game server or a mail server.
101
What is the purpose of MAC filtering?
Media access control (MAC) address filtering limits access to a network based on devices hardware identification.
102
What is this: 1A-2B-3C-4D-5C-6D?
1A-2B-3C-4D-5C-6D is a media access control (MAC) address.
103
What is a benefit of disabling SSID broadcast on a wireless router?
A wireless network is partially hidden and is harder to locate when service set identifier (SSID) broadcasts are disabled.
104
What is used to identify a wireless network?
Wireless networks are identified with a service set identifier (SSID).
105
What is the relationship of upload and download speeds with an ADSL?
The download speed is faster than the upload speed in an asynchronous digital subscriber line (ADSL).
106
What type of Internet connection is most appropriate for a user that travels frequently?
Cellular Internet connections are appropriate for mobile users.
107
What is a PAN?
A personal area network (PAN) is a network centered around a person.
108
What is a WAN?
A wide area network (WAN) is a network that covers a large physical distance.
109
What is a primary benefit of a mesh topology?
A mesh topology includes redundant connections for each network device.
110
What type of networking device converts analog signals to digital signals?
A modulator demodulator (modem) converts analog signals to digital signals and converts digital signals to analog signals.
111
What type of networking device sends received packets to all ports on the device?
A hub does not analyze packets but instead sends received packets to all ports on the device.
112
What type of networking tool is used to attach RJ-45 connectors to twisted pair cables?
Crimpers are used to attach RJ-45 connectors to twisted pair cables.
113
What type of networking tool is used to test a NIC?
Loopback plugs are used to test network interface cards (NICs).
114
What type of networking tool is used to trace a cable between two rooms?
Toner probes are used to trace a cable between two rooms.
115
What type of connector would you find on a POTS connection?
RJ-11
116
What type of connector would you find on an Ethernet twisted pair cable?
RJ-45
117
What is the maximum recommended transmission rate of CAT5?
100MBps
118
What is the maximum transmission rate of CAT5e?
1000 Mbps (1 Gbps)
119
What category of cable has a maximum transmission rate of 10 Mbps?
CAT3
120
What are the two primary benefits of fiber cable?
Immune to electromagnetic interference (EMI) and supports longest cable lengths
121
What type of cable is fire retardant?
Plenum-rated or plenum-safe cable
122
What type of twisted pair cable protects against EMI?
Shielded Twisted Pair (STP)
123
What class address is 10.12.14.18?
Class A
124
What is the Class A range of private IP addresses?
10.0.0.0 to 10.255.255.255
125
What type of IPv4 addresses are assigned on the Internet?
Public IP addresses
126
What Class address is 192.168.1.5?
Class C
127
What is the Class B range of private IP addresses?
172.16.0.0 to 172.31.255.255
128
What numbers are at the beginning of all APIPA addresses?
169.254
129
What is the Class C range of private IP addresses?
192.168.0.0 to 192.168.255.255
130
What port receives email?
110 (post office protocol)
131
What port sends email?
25 (Simple Mail transport protocol)
132
What is the base frequency used by 802.11b?
2.4Ghz
133
What is the maximum transmission speed used by 802.11b?
11 Mbps
134
What is the base frequency used by 802.11g?
2.4 Ghz
135
What is the maximum transmission speed used by 802.11g?
54 Mbps
136
What is the base frequency used by 802.11n?
2.4 Ghz and 5.0 Ghz
137
What is the maximum transmission speed used by 802.11n?
600 Mbps (300 Mbps common)
138
Where is the wireless antenna located in a typical laptop?
Display Bezel
139
What is a distinguishing feature of WEP?
It is the weakest encryption type
140
Which wireless encryption type is the strongest?
Wifi Protected Access Version 2 (WPA2)
141
What feature on a wireless router issues IP addresses?
Dynamic Host Configuration Protocol (DHCP)
142
What feature on a wireless router limits access to specific devices?
Media Access Controll (MAC) address filtering.
143
What feature on a wireless router hides the network from casual users?
Disabling Service Set Identifier (SSID) broadcast
144
What type of cable would you use to connect a DSL modem with an Internet service provider?
CAT3 twisted pair cable to connect to a telephone line
145
What type of cable would you use to connect a broadband cable modem with an Internet service provider?
Cable modems use Coaxial cables
146
What topology connects devices in a line?
Bus
147
What topology connects devices to a central device, such as a switch?
Star
148
What device connects networks together?
A router
149
What device connects devices together in a network with the most efficiency?
A Switch
150
After installing a new NIC expansion card, what else should you install?
Drivers for the new NIC
151
On what type of cable would you see an F-type connector?
Coaxial Cable use F-type connectors.
152
On what type of cable would you see an LC-type connector?
Fiber cable
153
What type of connector is used to connect external DSL modems to a phone line?
RJ-11, including phone lines connected to digital subscriber
154
What type of connector used with CAT 5e cable?
RJ-45 are used with twisted pair cables and CAT 5e cable.
155
What is the maximum transmission speed of CAT 3 cable?
10 Mbps
156
What type of cable provides the best protection against EMI?
Fiber cable provides the best protection
157
Where would you find an ExpressCard /34 slot?
Laptop computers
158
What type of RAM cards are used in laptops?
Small Outline Dual Inline Memory Modules (SODIMM)
159
What would cause a symptom of a backlight failure on a laptops LCD monitor?
The Display will dim if the backlight fails on a LCD
160
What type of backlight is used by older LCD monitors?
a Cold Fluorescent Lamp (CCFL)
161
What provides power to a CCFL on a Laptops LCD monitor?
An Inverter
162
What is a symptom of a failed inverter on a laptop?
The Screen becomes dim.
163
What is the easiest way to adjust the brightness on most laptops?
You can toggle the brightness Fn key on most laptops to adjust brightness.
164
What is the easiest way to disable internet access on most laptops?
You can toggle the brightness Fn switch
165
What is the easiest way to enable the output for an external monitor on most laptops?
Toggle the Fn switch
166
what is commonly used to provide physical security for laptops?
Cable locks.
167
What tool would you use to verify proper wiring in a cable?
Cable Tester
168
What are common video connectors on laptop computers?
HDMI and VGA
169
What jack is used to provide power to a laptop computer?
DC-in jack
170
What does a laptop AC adaptor do?
Converts AC power to DC power
171
What should be done before replacing components such as RAM in a laptop?
Remove all power including the battery
172
what is the symptom of a failed backlight in a laptop?
Extremely dim display
173
What type of printer uses voltage control to vary the amount of ink sent to the printer?
Inkjet printers
174
What component in a laser printer ensures that toner doesn't fall off the paper?
The fusing assembly melts the toner onto the page
175
What happens during the cleaning stage of a later printer?
Residual toner is removed from the drum.
176
What type of printer can use carbon paper?
Impact printers
177
What type of printer has an imaging drum?
Laser printers ave an imaging drum.
178
What type of printer interface is used with the LPT1 port?
A parallel printer interface
179
What is the purpose of a print server in a network?
To share one or more printers to users in a network.
180
What must be enabled on a user computer to share a printer connected via a USB port on a windows 7 computer?
Print sharing must be enabled to share printers.
181
What is replaced when the printout on an impact printer begins to fade?
The ink ribbon is replaced.
182
What is typically replaced when a laser printer has problems picking up a single piece of a paper from the paper tray?
Pickup rollers
183
What is required for an IR printer connection?
Clear line-of-sight
184
What would you use to allow multiple users to access a single printer?
Print Server
185
What happens to a network printer if a printer server is turned off?
The printer is no longer available.
186
What must be enabled on a single computer to share a local printer?
Print sharing
187
What is the easiest way to install a USB printer on Windows 7?
Turn it on and plug in the USB cable
188
What applet is used on Windows XP to share a printer?
Printers and Faxes
189
What prevents tripping hazards in a networked environment?
Propper cable management prevents tripping hazards in a networked environment.
190
What should a technician remove prior to measuring voltages from a desktop computers power supply?
Remove all rings and jewelry
191
What should be avoided when fighting an electrical fire?
Water-based fire extinguishers should not be used on electrical fires.
192
What is a significant safety hazard related to CRT monitors?
CRT = Cathode ray tube,
| They have lethal voltages inside them.
193
What is the best alternative when working on PCs if ESD equipment isn't available?
Techs should use self grounding techniques like holding the metal case.
194
What is a danger related to low humidity?
It can increase the chance of ESD.
195
What are some types of ESD equipment used by technicians?
ESD mats, wrist straps, and grounding bars
196
What protects a system during a power outage?
A battery backup or UPS.
197
What can be used to remove dust and debris from a desktop computer?
compressed air or ESD safe vacuums.
198
What is the purpose of a surge suppressor?
Protects systems against damage from power spikes.
199
When is it acceptable to copy user data?
You should only copy user data when you have the user's permission.
200
What is used to ensure that evidence is admissible in legal proceedings?
Chain of Custody document
201
What applet is used on Windows 7 to share a printer?
Devices and printers
202
What is provided by a UPS that is not provided by a surge suppressor?
Continuous power
