Mike Meyers / Jason Dion Notes

Question 1

ARM CPU

Answer 1

Advanced RISC Machines

operate using a Reduced Instruction Set Computing (RISC) methodology

Question 2

CPUs with graphics cards built-in

Answer 2

APUs (Accelerated Processing Unit)

Question 3

IA-32

Answer 3

Intel Architecture, 32-bit

Question 4

ISAs

Answer 4

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

Question 5

Two most common kinds of CPU sockets

Answer 5

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

Question 6

Stores information about the RAM stick

Answer 6

SPD Chip

Question 7

How many pins are in a stick of DDR4 RAM?

Answer 7

288

Question 8

How many pins are in a stick of DDR3 RAM?

Answer 8

240

Question 9

How many pins are in a stick of DDR2 RAM?

Answer 9

240

Question 10

How many pins are in a stick of SDRAM?

Answer 10

128

Question 11

How many pins are in a stick of DDR RAM?

Answer 11

184

Question 12

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

Answer 12

ECC

Question 13

In what order should memory slots be filled?

Answer 13

Whatever order the motherboard specifies

Question 14

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

Answer 14

Add more RAM

Question 15

Which RAM would typically be installed into a laptop computer?

Answer 15

SO-DIMM

Question 16

BIOS programs that enable hardware to function are called what?

Answer 16

Services

Question 17

Which is found in BIOS?

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

Answer 17

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.

Question 18

What is the primary purpose of POST?

Answer 18

It performs diagnostic tests before booting the operating system

Question 19

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

Answer 19

Video card

Question 20

How would a technician start the system setup program?

Answer 20

Press a certain key before the computer boots the operating system

Question 21

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

Answer 21

Set a user password

Question 22

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

Answer 22

The CMOS battery is weak or failing

Question 23

Which battery provides power to the RTC and CMOS chip?

Answer 23

CR2032

Question 24

ATX Form Factor

Answer 24

12” x 9.6”

Question 25

Micro ATX form factor

Answer 25

9.6" x 9.6"

Question 26

Mini ITX form factor

Answer 26

6.7" x 6.7"

Question 27

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

Answer 27

Capacitor swelling

Question 28

What should you do when you notice a capacator swelling?

Answer 28

Immediately remove power and don't use the motherboard

Question 29

Which chip is typically found on modern motherboards?

Answer 29

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

Question 30

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

Answer 30

Slow hardware

Question 31

Which is typically not found on a motherboard?

Answer 31

A. PCIe slots B.

Question 32

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

Answer 32

Standoffs

Question 33

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

Answer 33

Anti-static wrist strap

Question 34

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

Answer 34

12V, 5V, 3.5V

Question 35

The largest motherboard form factor is?

Answer 35

ATX

Question 36

What are the two main power connectors for the motherboard?

Answer 36

20-pin ATX & 4-pin P4

Answer 37

SAS

Answer 38

iSCSI

Question 39

Mass storage is organized into __________? A. Gibibytes B. LBAs C. Pages D. Gigabytes

Answer 39

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.

Question 40

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

Answer 40

ATA

Question 41

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

Answer 41

1

Question 42

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

Answer 42

Pages

Question 43

Which interface is the fastest?

Answer 43

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.

Question 44

Combine SCSI with SATA to get ____________?

Answer 44

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

Question 45

Running SCSI commands over Ethernet is called __________?

Answer 45

iSCSI

Question 46

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

Answer 46

3

Question 47

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

Answer 47

2

Question 48

Which is an example of a hardware RAID controller? A. Storage spaces B. Dedicated expansion card C. Dynamic disks D. Basic disks

Answer 48

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.

Question 49

RAID 10 requires how many drives?

Answer 49

4

Question 50

What kind of chip holds a BitLocker key?

Answer 50

TPM (Trusted Platform Module)

Question 51

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

Answer 51

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.

Question 52

USB 1.0 speed

Answer 52

1.5 Mbps

Question 53

USB 1.1 speed

Answer 53

12 Mbps

Question 54

USB 2.0 speed

Answer 54

480 Mbps

Question 55

USB 3.0 speed

Answer 55

5 Gbps

Question 56

USB 3.1 Gen 1 speed

Answer 56

5 Gbps

Question 57

USB 3.1 Gen 2 speed

Answer 57

10 Gbps

Question 58

Thunderbolt 1 speed

Answer 58

10 Gbps

Question 59

Thunderbolt 2 speed

Answer 59

20 Gbps

Question 60

Thunderbolt 3 speed

Answer 60

40 Gbps

Question 61

Blue ray capacity

Answer 61

15.6-50GB

Question 62

CD capacity

Answer 62

650-750 MB

Question 63

DVD capacity

Answer 63

4.37-15.9 GB

Question 64

Which display technology uses moving mirrors?

Answer 64

DLP

Answer 64

Keystone

Answer 65

Pincushion

Answer 66

Skew

Question 67

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

Answer 67

APU

Question 68

Cat 5 rating

Answer 68

100 Mbps

Question 69

Cat 5e rating

Answer 69

1 Gbps

Question 70

Cat 6

Answer 70

1 Gbps 100m 10 Gbps 55m

Question 71

Cat 6a rating

Answer 71

10 Gbps at 100m segments

Question 72

Contents of an ethernet frame

Answer 72

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

Question 73

MAC addresses are made up of how many bits?

Answer 73

48

Question 74

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

Answer 74

By watching frames

Question 75

How are WANs identified?

Answer 75

IP address

Question 76

Which device forwards data from one network to another?

Answer 76

Router

Question 77

Multimode fiber optic cables use what for their light source?

Answer 77

LEDs

Question 78

How many pairs of wires are in UTP Ethernet cables?

Answer 78

4

Question 79

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

Answer 79

Fox and hound

Question 80

Solid-core cabling is best used where?

Answer 80

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

Question 81

Wake-on-LAN is triggered by what?

Answer 81

Magic packet

Question 82

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

Answer 82

Hub

Question 83

What device forwards data from one network to another?

Answer 83

Router