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PQSs > Help Desk Technician 301 (NAVEDTRA 43355-1) > Flashcards

Help Desk Technician 301 (NAVEDTRA 43355-1) Flashcards

1
Q

ORM (Operational Risk Management)

A

Standardized method of mitigating risk.

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2
Q

IAMIS

A

Identify, Assess, Make risk decisions, Implement controls, Supervise.

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3
Q

AIS Security

A

Limiting access, avoiding misuse, preventing destruction, preventing changes that would make data unreliable, etc.

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4
Q

Malicious Code Protection

A

To prevent Malicious Code from entering our systems, we must install and maintain anti-virus software, available to all DOD components at no cost.

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5
Q

Help Desk Technician

A

Properly verify identity of personnel requesting password assistance, input trouble tickets, and provide customer support.

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6
Q

Help Desk Supervisor

A

Monitors trouble ticket queue and assigns personnel.

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7
Q

Domain Admin

A

Responsible for the logical side of the network.

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8
Q

Infrastructure Admin

A

Responsible for the hardware side of the network.

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9
Q

COMSPOT

A

Communications Spotlight

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10
Q

Purpose of a COMSPOT

A

To report an outage to the ship’s chain of command and request technical assistance.

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11
Q

Timeframe for a COMSPOT

A

Per REAGANINST, when the outage/interruption of services reaches 30 minutes, then every hour or as updates come available. Final COMSPOT is issued 1 hour after system restoral.

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12
Q

COMSPOT Classification requirement

A

Minimum of Confidential

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13
Q

COMSPOT PLA requirements

A

Ship’s operational chain of command, NCTAMS (per AOR)

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14
Q

Components of a COMSPOT

A

Time outage discovered, troubleshooting conducted, results, assistance request.

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15
Q

Drafter

A

Drafts the COMSPOT

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16
Q

Originator

A

Quality Control

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17
Q

Releaser

A

Chops the message for release upon approval

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18
Q

COMSPOT/CASREP relationship

A

COMSPOT represents short-term, investigative action, but can eventually result in a CASREP. CASREPs are longer term, depot-level repair.

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19
Q

Meda (IRT Networking)

A

Physical object on which data is stored OR the object at the physical layer that carries data.

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20
Q

Magnetic Storage Media

A

Tapes and traditional harddrives

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21
Q

Off-site Disaster Files

A

A physical location where info is stored away from the primary data store to mitigate data loss in the event of a disaster.

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22
Q

BPI

A

Bits Per Inch

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23
Q

Bytes

A

8 bits of data, processed by computers as a unit.

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24
Q

ASCII

A

American Standard Code for Information Interchange: a standard code consisting of 128 7-bit combinations, for characters to be stored on or transmitted between computers.

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25
Q

EBCDIC

A

Extended Binary Code Decimal Interchange Code: 256 8-bit code used for data representation and transfer.

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26
Q

ACPI

A

Advanced Configuration and Power Interface

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27
Q

ATX

A

Hardware spec; open PC motherboard spec by Intel, increases I/O capability.

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28
Q

Backup

A

A copy or duplicate version, especially of a file, program, or entire computer system, in the event of data loss on the primary data store. Also the procedure to follow in such an event.

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29
Q

Baud Rate

A

A number related to the speed of data transmission in a system. Rate indicates the number of electrical oscillations per second.

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30
Q

Bandwidth

A

Transmission capacity of an electromagnetic communications device or system.

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31
Q

Binary

A

The representation of each one of a set of numbers, letters, etc as a unique sequence of bits, as in ASCII.

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32
Q

BIOS

A

Basic Input/Output System: computer firmware that directs many basic functions of the operating system, as booting and keyboard control.

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33
Q

Bit

A

A single, basic unit of information, used in connection with computers and informational theory.

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34
Q

BNC

A

Connector on a coaxial cable.

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35
Q

Buffer

A

A device or area of a computer that temporarily stores data that is being transferred between two machines that process raw data at different rates.

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36
Q

Cache

A

Small, highspeed memory that improves performance.

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37
Q

CD-ROM

A

Compact Disk-Read Only Memory: media on which a large amount of digitized, ROM memory can be stored.

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38
Q

CMOS

A

Complementary Metal Oxide Semiconductor

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39
Q

Coaxial Cable

A

Cable consisting of an inner, insulated core of stranded or solid wire surrounded by an outer insulated flexible wire braid.

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40
Q

CPU

A

Central Processing Unit; key component of a computing system which contains the circuitry necessary to interpret and execute program instructions.

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41
Q

DCE

A

Distributed Computing Environment

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42
Q

DDR

A

Double Data Rate Random Access Memory

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43
Q

Defragmentation

A

The reorganization of files (on a disk) so that the parts of each file are stored in continguous sectors on a disk, thereby improving computer performance and maximizing disk space.

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44
Q

DIMM

A

Dual Inline Memory Module

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45
Q

Directory

A

Also called a “folder”; an organizing unit in a computer’s file system for storing and locating files.

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46
Q

DOS

A

Disk Operating System: single user, command-driven operating system for microcomputers.

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47
Q

Driver

A

Device Driver: main loop of an event-processing program, the code that gets commands and dispatches them for execution.

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48
Q

DTE

A

Data Terminal Equipment

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49
Q

DVD

A

Digital Video Disk: an optical disk that can store a very large amount of video data as text, music, or images.

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50
Q

EIDE

A

Enhanced Integrated Drive Electronics.

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51
Q

Ethernet

A

Trademarked LAN protocol featuring a bus topology and a 10 megabit-per-second data rate

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52
Q

FAT

A

File Allocation Table

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53
Q

FQDN

A

Fully Qualified Domain Name

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54
Q

Function Keys

A

A key on the keyboard of a computer that gives special commands to the computer.

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55
Q

Hexadecimal

A

Relating to or encoded in a hexadecimal system, especially for use by a computer.

56
Q

IDE

A

Integrated Drive Electronics

57
Q

IEEE

A

Institute of Electrical and Electronics Engineers

58
Q

IP

A

Internet Protocol; a communications protocol for computers connected to a network, especially the internet, specifying the format for addresses and units of transmitted data.

59
Q

LAN

A

Local Area Network; limited area, like inside a building.

60
Q

MAC

A

Media Access Control: unique identifier assigned to network interfaces for communications on the PHYSICAL layer segment.

61
Q

Memory

A

Storage on a computer.

62
Q

Motherboard

A

Rigid, slotted board upon which other boards that contain the basic circuitry of a computer/component can be mounted.

63
Q

NIC

A

Network Interface Controller: connects a computer to a network.

64
Q

NTFS

A

NT File System

65
Q

Operating System

A

The collection of software that directs a computer’s operations, controlling and scheduling the execution of other programs, and managing storage, I/O, and communications resources.

66
Q

Parallel Port

A

A socket that can be used for connecting devices that send and receive data at more than one bit at a time.

67
Q

PATA

A

Parallel Advanced Technology Attachment

68
Q

PCI

A

Peripheral Component Interconnect

69
Q

POST

A

Power On Self Test

70
Q

Peripheral

A

A device or unit that operates separately from the CPU but is connected to it. (I.E: a monitor or mouse)

71
Q

Power Supply

A

A source of electricity for a device, which converts, regulates, and transmits the external power for the device.

72
Q

Printer

A

An output device that produces a paper copy of alphanumeric or graphical data.

73
Q

PS/2

A

IBM’s second generation of PCs

74
Q

RAID

A

Redundant Array of Independant Disks

75
Q

RAM

A

Random Access Memory: VOLATILE - will lose load if power is interrupted.

76
Q

Registry

A

Stores configuration info.

77
Q

RJ-11

A

Typically used on modems, 2 wires / 6 connections

78
Q

RJ-45

A

Serial connector that looks much like a telephone line, but with 8 wires instead of 4. Connects at NIC.

79
Q

ROM

A

Read-only Memory. Cannot be altered.

80
Q

SATA

A

Serial Advanced Technology Attachment

81
Q

SCSI

A

Small Computer System Interface: used for connecting peripheral devices.

82
Q

Serial Port

A

Ports that send/receive more than one bit at a time.

83
Q

Service Pack

A

A collection of updates, fixes, or enhancements to a software program delivered in teh form of a single installable package.

84
Q

Shell

A

Software that provides an interface for users of an operating system to access the services of a kernel.

85
Q

SIMM

A

Single In-line Memory Module

86
Q

USB

A

Universal Serial Bus

87
Q

Virus

A

A computer program that can replicate itself and spread from one computer to another.

88
Q

WAN

A

Wide Area Network (i.e.: spanning a country or continent)

89
Q

ARP

A

Address Resolution Protocol

90
Q

Backbone

A

A large capacity, high-speed central section by which other network segments are connected.

91
Q

BGP

A

Border Gateway Protocol

92
Q

Cabling

A

A wire or bundle of wires that conduct electricity.

93
Q

Duplex

A

Permitting the transmission of simultaneous signals in both directions in radio, telecomms, or computer channels.

94
Q

Dynamic Routing

A

A protocol on one router communicates with the same protocol running on neighboring routers.

95
Q

Encapsulation

A

Technique used by layered protocols in which a layer adds header information to the protocol data unit (PDU) from the layer above.

96
Q

Ethernet Interface

A

Where ethernet cables connect to a port.

97
Q

Fast Ethernet Interface

A

Newer generation of ethernet interface. Faster speeds.

98
Q

Gateway

A

Software or hardware that links two computer networks.

99
Q

Hub/Switch

A

A device for connecting computers in a network.

100
Q

ICMP

A

Internet Control Message Protocol

101
Q

IOS

A

Internetworking Operating System; a package of routing, switching, internetworking and telecommunications functions integrated into a multitasking operating system.

102
Q

IP Address

A

A numerical label assigned to each device participating in a computer network that uses the internet protocol for communication.

103
Q

Loopback Interface

A

Routing signals back to their device or facility of origin; used in troubleshooting.

104
Q

OSPF

A

Open Shortest Path First:

105
Q

Port

A

Application or process specific software construct serving as a communications endpoint in a computer’s host OS.

106
Q

Protocol

A

A set of rules governing the exchange or transmission of data electronically between devices.

107
Q

RIP

A

Routing Information Protocol

108
Q

Router

A

A device that forwards data packets to the appropriate parts of a computer network.

109
Q

Serial Interface

A

Physical serial connection port.

110
Q

Server

A

Computer on computer program that manages access to a centralized resource or service in a network.

111
Q

Static Routing

A

Managed by an administrator and takes precedence over dynamic routes.

112
Q

Subnet

A

Any network that is part of a larger IP network and is identified by a subnet address.

113
Q

Subnet Mask

A

32-bit address mask used in IP to identify the bits of an IP address that are used for the subnet address.

114
Q

TCP

A

Transmission Control Protocol: connection oriented protocol that is defined at the transport layer of the OSI Model

115
Q

TCP/IP

A

Transmission Control Protocol/Internet Protocol: the suite of protocols underlying the Internet.

116
Q

Tunneling

A

A method of avoiding protocol restrictions by wrapping packets from one protocol in another’s frame and transmitting this encapsulated packet over a network that supports the wrapper protocol.

117
Q

UDP

A

User Datagram Protocol: a connectionless Transport layer protocol in the TCP/IP protocol stack that simply allows datagrams to be exchanged without acknowledgements or delivery guarantees.

118
Q

VoIP

A

Voice over IP: allows telephonic communication over the internet.

119
Q

OSI Model

A

Open Systems Interconnection Model: characterizes and standardizes the internal functions of a communications system by partitioning it into astract layers.

120
Q

Application Layer

A

Data.

Network process to application.

121
Q

Presentation Layer

A

Data.

Data representation, encryption & decryption, convert machine dependant data to machine independant data.

122
Q

Session Layer

A

Data.

Interhost communication, managing sessions between applications.

123
Q

Transport Layer

A

Segments.

End-to-end connections, reliability & flow control.

124
Q

Network Layer

A

Packet/Datagrams.

Path determination and logical addressing.

125
Q

Data Link Layer

A

Frame.

Physical addressing.

126
Q

Physical Layer.

A

Bit.

Media, signal & binary transmission.

127
Q

RJ-45 Colors

A

Orange/white, Orange, Green/white, blue, blue/white, green, brown/white, brown.

128
Q

nslookup

A

CMD line tool for querying the DNS to obtain domain name or IP address, or any other specific DNS record.

129
Q

ipconfig

A

Displays all current TCP/IP network configurations and can modify DHCP and DNS settings.

130
Q

ping

A

Admin utitlity used to test reachability of a host.

131
Q

traceroute

A

Diagnostic tool for displaying the route (path) and measuring transit delays.

132
Q

netstat

A

CMD line tool that displays network connections, routing tables, and a number of network interface & network protocol statistics.

133
Q

NAVCYBERDEFCOM

A

Mission is to coordinate, monitor, and oversee the defense of Navy computer networks and systems.

134
Q

COMTENTHFLT

A

Serves at the numbered Fleet for Fleet Cyber Command and exercises operational control of assigned Naval Forces; coordinates with other Naval, coalition, and Joint Task Forces across cyber, electromagnetic, and space domains.

135
Q

USCYBERCOM

A

Ensures US/Allied freedom of action in cyberspace and denying the same to adversaries.

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