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Comptia 1101 > Mike Meyers / Jason Dion Notes > Flashcards

Mike Meyers / Jason Dion Notes Flashcards

1
Q

ARM CPU

A

Advanced RISC Machines

operate using a Reduced Instruction Set Computing (RISC) methodology

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2
Q

CPUs with graphics cards built-in

A

APUs (Accelerated Processing Unit)

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3
Q

IA-32

A

Intel Architecture, 32-bit

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4
Q

ISAs

A

Instruction Set Architectures (x86, x64, x86x64, IA-32)

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5
Q

Two most common kinds of CPU sockets

A

Pin Grid Array (PGA) and Land Grid Array (LGA)

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6
Q

Stores information about the RAM stick

A

SPD Chip

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7
Q

How many pins are in a stick of DDR4 RAM?

A

288

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8
Q

How many pins are in a stick of DDR3 RAM?

A

240

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9
Q

How many pins are in a stick of DDR2 RAM?

A

240

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10
Q

How many pins are in a stick of SDRAM?

A

128

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11
Q

How many pins are in a stick of DDR RAM?

A

184

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12
Q

Which types of RAM can function even if one of its memory chips fails?

A

ECC

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13
Q

In what order should memory slots be filled?

A

Whatever order the motherboard specifies

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14
Q

What should a technician do to improve performance if the virtual memory file is constantly full?

A

Add more RAM

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15
Q

Which RAM would typically be installed into a laptop computer?

A

SO-DIMM

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16
Q

BIOS programs that enable hardware to function are called what?

A

Services

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17
Q

Which is found in BIOS?

A. CMOS Battery
B. CPU
C. POST
D. Real-time clock

A

POST

Explanation:
The Power On Self Test (POST) program is contained in the BIOS chip. The CPU is found on the motherboard, not within BIOS. The CMOS battery is not inside a chip. The real-time clock (RTC) is in the CMOS chip, not the BIOS chip.

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18
Q

What is the primary purpose of POST?

A

It performs diagnostic tests before booting the operating system

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19
Q

For which failures would you expect POST to issue beep codes?

A

Video card

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20
Q

How would a technician start the system setup program?

A

Press a certain key before the computer boots the operating system

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21
Q

To prevent random people from booting the OS, a technician should do what?

A

Set a user password

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22
Q

Which is more likely to cause a computer’s reported time to fall behind?

A

The CMOS battery is weak or failing

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23
Q

Which battery provides power to the RTC and CMOS chip?

A

CR2032

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24
Q

ATX Form Factor

A

12” x 9.6”

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25
Q

Micro ATX form factor

A

9.6” x 9.6”

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26
Q

Mini ITX form factor

A

6.7” x 6.7”

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27
Q

What could be the cause of a burning smell from a motherboard?

A

Capacitor swelling

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28
Q

What should you do when you notice a capacator swelling?

A

Immediately remove power and don’t use the motherboard

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29
Q

Which chip is typically found on modern motherboards?

A

Southbridge

The southbridge is typically found on modern motherboards. The functions of the old northbridge chip have been moved onto modern CPUs.

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30
Q

The job of the southbridge is to act as the interface between the CPU and what?

A

Slow hardware

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31
Q

Which is typically not found on a motherboard?

A

A. PCIe slots
B.

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32
Q

The small, metal items that screw into a case and keep the motherboard from touching the case are called:

A

Standoffs

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33
Q

How can you protect your system from ESD while installing the motherboard?

A

Anti-static wrist strap

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34
Q

What are the three main types of power that power supplies provide?

A

12V, 5V, 3.5V

35
Q

The largest motherboard form factor is?

A

ATX

36
Q

What are the two main power connectors for the motherboard?

A

20-pin ATX & 4-pin P4

37
Q
A

SAS

38
Q
A

iSCSI

39
Q

Mass storage is organized into __________?

A. Gibibytes
B. LBAs
C. Pages
D. Gigabytes

A

B. LBAs

Storage is organized into Logical Blocks (LBAs). Gigabytes and Gibibytes describe capacity, not organizational structure. Pages are the organizational structure of SSDs but not of all mass storage devices.

40
Q

What is a standard command and connection standard for mass storage devices?

A

ATA

41
Q

SATA drives use how many wires to transfer data to and from the computer?

A

1

42
Q

SSDs are organized into logical blocks, but their memory storage cells are called what?

A

Pages

43
Q

Which interface is the fastest?

A

NVMe

NVMe uses PCIe lanes and is the fastest of these interface choices. PATA is the slowest; SATA and SCSI speeds fall between NVMe and PATA.

44
Q

Combine SCSI with SATA to get ____________?

A

SAS

Serial Attached SCSI (SAS) uses the SATA connector with the SCSI command language.

45
Q

Running SCSI commands over Ethernet is called __________?

A

iSCSI

46
Q

What is the minimum number of drives to perform RAID 5?

A

3

47
Q

What is the maximum number of drive failures under RAID 6 at which the array will still function?

A

2

48
Q

Which is an example of a hardware RAID controller?

A. Storage spaces
B. Dedicated expansion card
C. Dynamic disks
D. Basic disks

A

C. Dedicated expansion card

A dedicated RAID controller comes in the form of an expansion card. Storage Spaces is a Microsoft software RAID implementation. Dynamic and basic disks are not RAID controllers.

49
Q

RAID 10 requires how many drives?

A

4

50
Q

What kind of chip holds a BitLocker key?

A

TPM (Trusted Platform Module)

51
Q

Which is most likely the result of a corrupted operating system?

A. The system attempts to boot from the wrong device
B. Slow performance
C. The hard drive makes a loud clicking noise
D. Continuous reboot

A

D. Continuous reboot

Of the choices here, the most likely result of a corrupt operating system is continuous reboots. Boot order is set in the UEFI/BIOS system setup utility. A corrupt OS can cause crashes and reboots, not slow performance. Hard drive clicking comes from a mechanical failure inside the hard drive.

52
Q

USB 1.0 speed

A

1.5 Mbps

53
Q

USB 1.1 speed

A

12 Mbps

54
Q

USB 2.0 speed

A

480 Mbps

55
Q

USB 3.0 speed

A

5 Gbps

56
Q

USB 3.1 Gen 1 speed

A

5 Gbps

57
Q

USB 3.1 Gen 2 speed

A

10 Gbps

58
Q

Thunderbolt 1 speed

A

10 Gbps

59
Q

Thunderbolt 2 speed

A

20 Gbps

60
Q

Thunderbolt 3 speed

A

40 Gbps

61
Q

Blue ray capacity

A

15.6-50GB

62
Q

CD capacity

A

650-750 MB

63
Q

DVD capacity

A

4.37-15.9 GB

64
Q

Which display technology uses moving mirrors?

A

DLP

64
Q
A

Keystone

65
Q
A

Pincushion

66
Q
A

Skew

67
Q

A CPU with a built-in graphics processor is a what?

A

APU

68
Q

Cat 5 rating

A

100 Mbps

69
Q

Cat 5e rating

A

1 Gbps

70
Q

Cat 6

A

1 Gbps 100m
10 Gbps 55m

71
Q

Cat 6a rating

A

10 Gbps at 100m segments

72
Q

Contents of an ethernet frame

A

the destination MAC addresses, the source MAC address, the data payload, and finally the FCS.

73
Q

MAC addresses are made up of how many bits?

A

48

74
Q

How does a switch know the MAC addresses of connected devices?

A

By watching frames

75
Q

How are WANs identified?

A

IP address

76
Q

Which device forwards data from one network to another?

A

Router

77
Q

Multimode fiber optic cables use what for their light source?

A

LEDs

78
Q

How many pairs of wires are in UTP Ethernet cables?

A

4

79
Q

Which is the best tool to identify a specific cable within a bundle of cables?

A

Fox and hound

80
Q

Solid-core cabling is best used where?

A

To connect distant locations with horizontal runs and drops inside walls and plenum spaces

81
Q

Wake-on-LAN is triggered by what?

A

Magic packet

82
Q

Which device retransmits any inbound message out all of its other ports?

A

Hub

83
Q

What device forwards data from one network to another?

A

Router

Comptia 1101 (9 decks)

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