Help Desk Technician 301 (NAVEDTRA 43355-1) Flashcards
(135 cards)
1
Q
ORM (Operational Risk Management)
A
Standardized method of mitigating risk.
2
Q
IAMIS
A
Identify, Assess, Make risk decisions, Implement controls, Supervise.
3
Q
AIS Security
A
Limiting access, avoiding misuse, preventing destruction, preventing changes that would make data unreliable, etc.
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.
5
Q
Help Desk Technician
A
Properly verify identity of personnel requesting password assistance, input trouble tickets, and provide customer support.
6
Q
Help Desk Supervisor
A
Monitors trouble ticket queue and assigns personnel.
7
Q
Domain Admin
A
Responsible for the logical side of the network.
8
Q
Infrastructure Admin
A
Responsible for the hardware side of the network.
9
Q
COMSPOT
A
Communications Spotlight
10
Q
Purpose of a COMSPOT
A
To report an outage to the ship’s chain of command and request technical assistance.
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.
12
Q
COMSPOT Classification requirement
A
Minimum of Confidential
13
Q
COMSPOT PLA requirements
A
Ship’s operational chain of command, NCTAMS (per AOR)
14
Q
Components of a COMSPOT
A
Time outage discovered, troubleshooting conducted, results, assistance request.
15
Q
Drafter
A
Drafts the COMSPOT
16
Q
Originator
A
Quality Control
17
Q
Releaser
A
Chops the message for release upon approval
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.
19
Q
Meda (IRT Networking)
A
Physical object on which data is stored OR the object at the physical layer that carries data.
20
Q
Magnetic Storage Media
A
Tapes and traditional harddrives
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.
22
Q
BPI
A
Bits Per Inch
23
Q
Bytes
A
8 bits of data, processed by computers as a unit.
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.
25
EBCDIC
Extended Binary Code Decimal Interchange Code: 256 8-bit code used for data representation and transfer.
26
ACPI
Advanced Configuration and Power Interface
27
ATX
Hardware spec; open PC motherboard spec by Intel, increases I/O capability.
28
Backup
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.
29
Baud Rate
A number related to the speed of data transmission in a system. Rate indicates the number of electrical oscillations per second.
30
Bandwidth
Transmission capacity of an electromagnetic communications device or system.
31
Binary
The representation of each one of a set of numbers, letters, etc as a unique sequence of bits, as in ASCII.
32
BIOS
Basic Input/Output System: computer firmware that directs many basic functions of the operating system, as booting and keyboard control.
33
Bit
A single, basic unit of information, used in connection with computers and informational theory.
34
BNC
Connector on a coaxial cable.
35
Buffer
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.
36
Cache
Small, highspeed memory that improves performance.
37
CD-ROM
Compact Disk-Read Only Memory: media on which a large amount of digitized, ROM memory can be stored.
38
CMOS
Complementary Metal Oxide Semiconductor
39
Coaxial Cable
Cable consisting of an inner, insulated core of stranded or solid wire surrounded by an outer insulated flexible wire braid.
40
CPU
Central Processing Unit; key component of a computing system which contains the circuitry necessary to interpret and execute program instructions.
41
DCE
Distributed Computing Environment
42
DDR
Double Data Rate Random Access Memory
43
Defragmentation
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.
44
DIMM
Dual Inline Memory Module
45
Directory
Also called a "folder"; an organizing unit in a computer's file system for storing and locating files.
46
DOS
Disk Operating System: single user, command-driven operating system for microcomputers.
47
Driver
Device Driver: main loop of an event-processing program, the code that gets commands and dispatches them for execution.
48
DTE
Data Terminal Equipment
49
DVD
Digital Video Disk: an optical disk that can store a very large amount of video data as text, music, or images.
50
EIDE
Enhanced Integrated Drive Electronics.
51
Ethernet
Trademarked LAN protocol featuring a bus topology and a 10 megabit-per-second data rate
52
FAT
File Allocation Table
53
FQDN
Fully Qualified Domain Name
54
Function Keys
A key on the keyboard of a computer that gives special commands to the computer.
55
Hexadecimal
Relating to or encoded in a hexadecimal system, especially for use by a computer.
56
IDE
Integrated Drive Electronics
57
IEEE
Institute of Electrical and Electronics Engineers
58
IP
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
LAN
Local Area Network; limited area, like inside a building.
60
MAC
Media Access Control: unique identifier assigned to network interfaces for communications on the PHYSICAL layer segment.
61
Memory
Storage on a computer.
62
Motherboard
Rigid, slotted board upon which other boards that contain the basic circuitry of a computer/component can be mounted.
63
NIC
Network Interface Controller: connects a computer to a network.
64
NTFS
NT File System
65
Operating System
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
Parallel Port
A socket that can be used for connecting devices that send and receive data at more than one bit at a time.
67
PATA
Parallel Advanced Technology Attachment
68
PCI
Peripheral Component Interconnect
69
POST
Power On Self Test
70
Peripheral
A device or unit that operates separately from the CPU but is connected to it. (I.E: a monitor or mouse)
71
Power Supply
A source of electricity for a device, which converts, regulates, and transmits the external power for the device.
72
Printer
An output device that produces a paper copy of alphanumeric or graphical data.
73
PS/2
IBM's second generation of PCs
74
RAID
Redundant Array of Independant Disks
75
RAM
Random Access Memory: VOLATILE - will lose load if power is interrupted.
76
Registry
Stores configuration info.
77
RJ-11
Typically used on modems, 2 wires / 6 connections
78
RJ-45
Serial connector that looks much like a telephone line, but with 8 wires instead of 4. Connects at NIC.
79
ROM
Read-only Memory. Cannot be altered.
80
SATA
Serial Advanced Technology Attachment
81
SCSI
Small Computer System Interface: used for connecting peripheral devices.
82
Serial Port
Ports that send/receive more than one bit at a time.
83
Service Pack
A collection of updates, fixes, or enhancements to a software program delivered in teh form of a single installable package.
84
Shell
Software that provides an interface for users of an operating system to access the services of a kernel.
85
SIMM
Single In-line Memory Module
86
USB
Universal Serial Bus
87
Virus
A computer program that can replicate itself and spread from one computer to another.
88
WAN
Wide Area Network (i.e.: spanning a country or continent)
89
ARP
Address Resolution Protocol
90
Backbone
A large capacity, high-speed central section by which other network segments are connected.
91
BGP
Border Gateway Protocol
92
Cabling
A wire or bundle of wires that conduct electricity.
93
Duplex
Permitting the transmission of simultaneous signals in both directions in radio, telecomms, or computer channels.
94
Dynamic Routing
A protocol on one router communicates with the same protocol running on neighboring routers.
95
Encapsulation
Technique used by layered protocols in which a layer adds header information to the protocol data unit (PDU) from the layer above.
96
Ethernet Interface
Where ethernet cables connect to a port.
97
Fast Ethernet Interface
Newer generation of ethernet interface. Faster speeds.
98
Gateway
Software or hardware that links two computer networks.
99
Hub/Switch
A device for connecting computers in a network.
100
ICMP
Internet Control Message Protocol
101
IOS
Internetworking Operating System; a package of routing, switching, internetworking and telecommunications functions integrated into a multitasking operating system.
102
IP Address
A numerical label assigned to each device participating in a computer network that uses the internet protocol for communication.
103
Loopback Interface
Routing signals back to their device or facility of origin; used in troubleshooting.
104
OSPF
Open Shortest Path First:
105
Port
Application or process specific software construct serving as a communications endpoint in a computer's host OS.
106
Protocol
A set of rules governing the exchange or transmission of data electronically between devices.
107
RIP
Routing Information Protocol
108
Router
A device that forwards data packets to the appropriate parts of a computer network.
109
Serial Interface
Physical serial connection port.
110
Server
Computer on computer program that manages access to a centralized resource or service in a network.
111
Static Routing
Managed by an administrator and takes precedence over dynamic routes.
112
Subnet
Any network that is part of a larger IP network and is identified by a subnet address.
113
Subnet Mask
32-bit address mask used in IP to identify the bits of an IP address that are used for the subnet address.
114
TCP
Transmission Control Protocol: connection oriented protocol that is defined at the transport layer of the OSI Model
115
TCP/IP
Transmission Control Protocol/Internet Protocol: the suite of protocols underlying the Internet.
116
Tunneling
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
UDP
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
VoIP
Voice over IP: allows telephonic communication over the internet.
119
OSI Model
Open Systems Interconnection Model: characterizes and standardizes the internal functions of a communications system by partitioning it into astract layers.
120
Application Layer
Data.
Network process to application.
121
Presentation Layer
Data.
Data representation, encryption & decryption, convert machine dependant data to machine independant data.
122
Session Layer
Data.
Interhost communication, managing sessions between applications.
123
Transport Layer
Segments.
End-to-end connections, reliability & flow control.
124
Network Layer
Packet/Datagrams.
Path determination and logical addressing.
125
Data Link Layer
Frame.
Physical addressing.
126
Physical Layer.
Bit.
Media, signal & binary transmission.
127
RJ-45 Colors
Orange/white, Orange, Green/white, blue, blue/white, green, brown/white, brown.
128
nslookup
CMD line tool for querying the DNS to obtain domain name or IP address, or any other specific DNS record.
129
ipconfig
Displays all current TCP/IP network configurations and can modify DHCP and DNS settings.
130
ping
Admin utitlity used to test reachability of a host.
131
traceroute
Diagnostic tool for displaying the route (path) and measuring transit delays.
132
netstat
CMD line tool that displays network connections, routing tables, and a number of network interface & network protocol statistics.
133
NAVCYBERDEFCOM
Mission is to coordinate, monitor, and oversee the defense of Navy computer networks and systems.
134
COMTENTHFLT
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
USCYBERCOM
Ensures US/Allied freedom of action in cyberspace and denying the same to adversaries.
