Week 4 Test Review Flashcards by Josh Moore

SSH stands for?

Secure Shell Protocol

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What is referred to as either the number of bits used to indicate the color of a single pixel in a bit-mapped image or video frame buffer, or the number of bits used for each color component of a single pixel.

Color depth

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Power supplies are measured in what?

Watts

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What is the most common type of Twisted Pair (TP)?

UTP (Unshielded)

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What is the most battery used by today’s laptops?

Lithium Ion (Li-ion)

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What plugs directly into the power supply to test for problems?

Power supply tester

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What is a dynamic IP address?

– Address gets assigned each time device connects to network. The “dynamic” part comes from something called DHCP, or Dynamic Host Control Protocol. A computer or other device on the network that requests an address from the DHCP server is called a DHCP client.

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Name a common keyboard issue.

Stuck keys Loose connection Damaged keyboard

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IP stands for?

Internet Protocol

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SMB stands for?

Server Message Block Protocol

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What is the port for Telnet?

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AFP stands for?

Apple Filing Protocol

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FTP stands for?

File Transfer Protocol

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This protocol is a cryptographic network protocol for operating network services securely over an unsecured network.

SSH Secure Shell Protocol

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This device provides a simplified way of “plugging-in” an electronic device such as a laptop computer to common peripherals. What is it?

docking station

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This RAID consists of block-level striping with distributed parity.

RAID 5

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This is an electronic device that incorporates either a fan or a peltier device to keep a hot component such as a processor cool.

heatsink

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What does hot-swappable mean?

It means you do not have to power off the device to take the drive in and out

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A motherboard has a 24-pin socket for the main power connector. What ATX power supply connector will work?

20-pin connector

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What cable #s are different in the TP standards (T568 A & B)

Cables 1, 2, 3, and 6 are different.

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IPv4 is how many bits?

32 bits long is represented in dotted decimal

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What is tethering?

Tethering is when you share the Internet connection from your phone with other devices.

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SMD stands for?

Surface mounted devices

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Define IR.

Information retrieval (IR) is the activity of obtaining information resources relevant to an information need from a collection of information resources

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How much data can a single layer of a standard DVD hold?

4.7GB

What does UDP stand for? What is it?

UDP (user datagram protocol) – Connectionless sessions • Alternative to TCP, UDP just sends the package (doesn’t check for delivery) which means it has a lower bandwidth overhead and latency however due to this packets can be left behind.

IPv6 is how many bits?

128 bits long and is represented in hexadecimal

What is the physical component where data is stored in a HDD?

Platter

This tool is a device used to conjoin two pieces of metal by deforming one or both of them in a way that causes them to hold each other.

Crimper

SDRAM stands for? What does it do?

Synchronous Dynamic RAM Syncs to base clock of motherboard

IEEE stands for?

Institute of Electrical and Electronics Engineers

WAN stands for?

Wide Area Network

This protocol is used to transfer files between computers on a network. To exchange files between computer accounts, transfer files between an account and a desktop computer, or access online software archives.

FTP File Transfer Protocol

What is parity?

Parity is a technique that checks whether data has been lost or written over when it is moved from one place in storage to another or when it is transmitted between computers.

HDMI stands for?

High Definition Multimedia Interface

This hardware component In charge of the connection to all the secondary controllers: USB, SATA, Firewire, etc.

Southbridge (Known as ICH (I/O Controller Hub))

This protocol is an application layer protocol used on the Internet or local area networks to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection.

Telnet

What is a host?

A host is a device that sends & receives information on the network.

Do laptops use DIMM?

No laptops use a modified form of DIMM called SO-DIMM, or small outline dual inline memory modules.

DHCP stands for?

Dynamic Host Configuration Protocol

NIC stands for?

Network Interface Card

What is the data transfer rate of USB 3.0?

3Gb/s

CCFL stands for?

Cold Cathode Fluorescent Lamp

This RAM does not need to be refreshed Is found in cache memory in CPUs And soldered directly to a PCB - Printed circuit board. I.e. Motherboard OR integrated directly to chip

Static Random Access Memory (SRAM)

What are the 7 layers to the OSI model?

• Application 7 – Network services to applications • Presentation 6 – Transform data formats providing a standard interface for application layer • Session 5 – Establishes, manages, terminates connections between local and remote application • Transport 4 – Self-explanatory • Network 3 – Logical addressing and domain of routing • Data Link 2 – Physical addressing and media access procedures • Physical 1 – Defines all electrical and physical specifications for devices

What is the coloring standard for T568A?

White/Green White White/Orange Blue White/Blue Orange White/Brown Brown

LAN stands for?

What is a rail?

A rail is the printed circuit board (PCB) inside the power supply to which the external cables are connected.

What video technology supports both analog and digital signals, each requiring a cable with different connectors from the other?

DVI

A computer can have a maximum of X USB devices? What is X (#)?

127

What port is used for AFP?

548

SDIO stands for?

Secure Digital Input Output Card

Telnet stands for?

Telephone Network

The voltages for Molex and Mini (Berg) power connectors are color coded Red, Black, and Yellow. What is the voltage for each color?

Red 5V Yellow 12V Black G

What is the port for FTP?

Where is the BIOS configuration data stored?

CMOS

What does OSI stand for?

Open Systems Interconnect

ECC stands for?

Error Correction Code

What port is used for RDP?

3389

List the four different power supply problems.

Surge Spike Brownout (sag) Blackouts

What is a plenum cable for?

Cable that is run in the plenum spaces of building, more specifically in building construction this is the space that is used for air circulation in heating and air conditioning.

What is Ohms Law?

Ohm's Law is given by: V = I R

What are the three kinds of fiber connectors?

ST - Straight Tip SC - Subscriber/Standard/Square Channel LC - Lucent/Local/Little Connector

Firewire 800's connector type is?

9-conductor

Where are are battery alarms modified in Windows?

Power Options window

What component is most suspect if a burning electronics smell is evident?

power supply

What does TCP/IP stand for?

(Transmission Control Protocol / Internet Protocol)

What are the two parts of an IPv4 address?

Network portion: the number of the network the computer is on Host portion: the individual number of the computer

HTTP stands for?

Hypertext Transfer Protocol

The most common laptop resolution is?

WXGA, Widescreen Extended Graphics Array 1280x800 16:10 (1.6:1)

This protocol was developed by Microsoft; a multi-channel capable protocol which allows separate virtual channels for carrying information, and highly encrypted data.

RDP Remote Desktop Protocol

FireWire 800 is also known as?

IEEE 1394b

What are common tools you might use to troubleshoot power supplies?

Screwdrivers Compressed Air and Compressors Computer Vacuum – Takes out dust efficiently but can cause ESD (electrostatic discharge) if not used correctly. Multimeter – Commonly used to measure power supply voltages. Power Supply Tester – Plugs directly into the power supply to test for problems.

PAN stands for?

Personal Area Network

MAC stands for?

Media Access Control

Firewire 800 can hold a max of how many devices?

This RAID consists of an exact copy (or mirror) of a set of data on two or more disks.

RAID 1

List all the categories of twisted pair

Cat 3 Cat 5 Cat 5e Cat 6/6a Cat 7/7a

A tool used for inserting wire into insulation-displacement connectors on punch down blocks, patch panels, keystone modules, and surface mount boxes (also known as biscuit jacks).

Punchdown tool

The three most common voltages for power supply units are?

3.3V 5V 12V

You're installing a Blu-ray Disc drive on a computer. How much data can you fit on a single-layer Blu-ray Disc?

25GB

DNS stands for?

Domain name system

This RAID splits ("stripes") data evenly across two or more disks, without parity information, redundancy, or fault tolerance.

RAID 0

What is an intermediary device?

A device that ensures data flows from one host device to another host device.

POST stands for?

Power On Self Test

ESD stands for?

Electrostatic discharge

What are the 4 layers to the TCP/IP model?

• Application • Transportation • Internet • Network Access

The four type of power connectors are?

Molex Mini (Berg) SATA PCIe

What does FAT stand for?

File Allocation Table

This hardware component is in charge of the connection to high data transfer devices such as PCI Express video cards and the RAM.

Northbridge (Known as MCH - Memory Controller Hub)

ACPI stands for?

Advanced Configuration & Power Interface

How many colors are there if the color depth in Windows is set to 32-bit?

4 billion

If two computers are to communicate they must \_\_\_\_\_?

Use the same protocol

What is the coloring standard for T568A?

White/Orange Orange White/Green Blue White/Blue Green White/Brown Brown

APIPA is? What does it do?

(Automatic Private IP addressing) – Occurs in Window’s when a computer can’t contact DHPC server to obtain an IP address. When APIPA self-assigns an IP address it will be on 169.254.0.0 network.

What is the port for HTTP?

What does BNC stand for?

Bayonet Neill-Concelman

This object is designed to feed the motherboard, hard drives, optical drives and any other devices inside a computer with power. What is it called?

Power supply

This protocol is the foundation of data communication for the World Wide Web.

HTTP Hypertext Transfer Protocol

What is the port for SSH?

Week 4 Test Review Flashcards

(100 cards)