Study Guide Exam 220-1101- Wiley Learning Flashcards
(171 cards)
Name three of the standard DC voltages supplied by a power supply.
+3.3VDC, +5VDC, −5VDC, +12VDC, or −12VDC
What is jitter?
Variable latency on a network
What causes image smudging from a laser printer?
The fuser isn’t heating the toner and fusing it into the paper.
What is the name of the Apple proprietary connector used on the iPhone 12?
Lightning
What two categories of materials will 3D printers use to create images?
Filament and resin
FTP uses ports ___ and ___, and Telnet uses port ____.
20, 21, 23
What is the term for cloud service where the provider offers applications?
software as a service (SaaS)
When Windows quits unexpectedly, you may get a _________.
Blue Screen of Death (BSOD)
What are three SSD communications interfaces?
NVMe, SATA, PCIe
NVMe - non-volate Memory Express, is a device specification introduced by Intel in 2007. It standardizes the way that non-volatile memory devices, such as SSDs, can connect to a computer’s PCI Express (PCIe) bus.
Traditionally, SSDs are connected to the computer using a disk drive interface, such as SATA. However, SATA was designed for older data storage devices, such as HDDs (hard disk drives), and its data transfer speed is limited. Beginning in about 2005, when SSDs first became popular with consumers, the fastest SSDs were reading data quicker than SATA could transfer it. Manufacturers began producing SSDs that could be installed in a PCIe slot, but their interfaces varied widely. The NVMe standard allows any of these devices to be attached to a computer without requiring separate, and possibly conflicting, operating system device drivers.
Traditionally, SSDs are connected to the computer using a disk drive interface, such as SATA. However, SATA was designed for older data storage devices, such as HDDs (hard disk drives), and its data transfer speed is limited. Beginning in about 2005, when SSDs first became popular with consumers, the fastest SSDs were reading data quicker than SATA could transfer it. Manufacturers began producing SSDs that could be installed in a PCIe slot, but their interfaces varied widely. The NVMe standard allows any of these devices to be attached to a computer without requiring separate, and possibly conflicting, operating system device drivers.
SATA - Short for serial AT attachment, SATA 1.0 was first released in August 2001 and is a replacement for the parallel ATA interface used in IBM compatible computers. SerialATA can deliver 1.5 Gbps (approximately 187 MBps) of performance to each drive within a disk array. It is backward-compatible with ATA and ATAPI devices, and offers a thin, small cable solution, as seen in the “SATA Data Cable” picture. This cable helps makes cable routing easier and offers better airflow in the computer compared to the earlier ribbon cables used with ATA drives.
SATA also supports external drives through External SATA more commonly known as eSATA. eSATA offers many more advantages compared to other solutions. For example, it is hot-swappable, supports faster transfer speeds with no bottleneck issues like USB and FireWire, and supports disk drive technologies (e.g., S.M.A.R.T.).
However, eSATA does have some disadvantages, such as not distributing power through the cable like USB, which means drives require an external power source. The eSATA cable also supports a maximum length of up to 2 meters. Because of these disadvantages don’t plan on eSATA becoming the only external solution for computers.
PCie - Originally known as 3rd Generation I/O (3GIO), PCI Express, or PCIe, was approved in July 2002 as a serial computer expansion bus standard. PCI Express was designed as a high-speed replacement for the aging PCI and AGP standards and is available in different formats. The data transmitted over PCI Express is sent over wires (called lanes) in full duplex mode (both directions at the same time). Each lane can transfer speeds around 250 MB/s and each slot can be scaled from 1 to 32 lanes. With 16 lanes, PCI Express supports a bandwidth of up to 4,000 MB/s.
STP designed for use outdoors or underground is called what?
Direct burial
If one end of an Ethernet patch cable is configured as T568B, the other end needs to be configured as _____.
T568B
DDR3 SODIMMs have ____ pins.
204
Multipart forms are used with this type of printer.
impact
Which service helps manage corporate applications on mobile devices?
Mobile application management (MAM)
Class C private IP addresses are in the ____ range.
192.168.0.0 to 192.168.255.255
The series of print jobs waiting to use the printer is called the _________.
print queue
The ___ protocol is used to send mail and operates on port ___.
SMTP, 25
SMPT - Simple Mail Transfer Protocol, SMTP is an Internet standard for the sending of e-mail messages over port 25. While it is mostly used for transfer from one mail server to another, some client mail applications use SMTP for relaying messages; whereas receiving happens via POP or IMAP.
Thunderbolt is a combination of which two technologies?
DisplayPort and PCIe
Displayport - is a digital audio and video interface created by VESA. Its connections come in two varieties: standard, (shown in the picture) and the smaller Mini DisplayPort. Despite the difference in size, both connection types transmit identical signals. These cables are used to a display device like a computer monitor or projector to a computer.
Two common types of internal expansion slots for laptops are ____ and ____.
Mini PCIe, M.2
PCI - peripheral component interconnect
M.2 - is a connection type specification for computer expansion cards, introduced in 2014. The two major types of M.2 devices are the SATA M.2 and the significantly faster (and more expensive) PCIe M.2.
M.2 is often used for storage devices, such as SSDs, and high-performance non-volatile memory storage, such as Intel Optane.
The functional components of a chipset are known as __________and __________.
Northbridge and Southbridge
A ______ is a device primary used for storage on a network.
fileshare (or file server)
_________________ drives can be inserted and removed without turning off the system.
Hot-swappable
The roaming list on a mobile device is established by what?
The PRL (preferred roaming list)
The most secure encryption protocol for 802.11 is ____.
WPA3
WI-FI protected access 3