Final

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1
Directory
a centralized, hierarchical information repository about projects in an IT system
2
Directory services
protocols, functions, and APIs that allow access to directory information
3
Pruning and grafting
Moving objects to new locations in the directory, can move anything except the root
4
Attributes
Variables with values that are relevant to items in that part of the directory, attributes can be inherited
5
Schema
Defines the attribute types a directory can contain, defines the structure, holds the classes for the object that are created
6
Leaf
An object that cannot contain other objects ( Person, computer, printer)
7
Leaf object attributes
descirbe a leaf object and are defined in the directory schema
8
Directory enabled application
Core applications that rely on the directory for information (User logon, VPN authentication, Digital signature, SSO verification)
9
Organizational Units
Organizational containers, used to organize objects in AD
10
Distinguish names
refer to individual entries
11
Naming conventions
4 layers - c = Country, o = Organization, ou = Organization unit, cn = common name
12
X.500
Father of all directories, introduced concept of tree, leaf attributes, DN, and RDN
13
LDAP
standardized by the OSI and IETF, used for querying and modifying information in a directory
14
Active directory
Windows directory service, uses LDAP, X.500 based, replaced NTDS, contains the objects tracked and managed by the network, central repository of networked device information
15
eDirectory
Previously NDS, available in Navell Netware 4.0 and later, loosely based on X.500
16
Open DIrectory
Used by apple, uses LDAP and Kerberos, can intergrate with AD
17
Workgroup
no centralized mangement or control
18
Domain
Collection of objects that share the same databse
19
Active Directory Domain Serivces
Role to install AD, AD database
20
Sites
the physical structure or topology of the network, a collection of well-connected subnets
21
Replication
a change being made on one computer replicated across the directory
22
Obejct
An instance of a class
23
Group policy objects
configured settings that are applyed to one or more objects by lnking to an organizational unit
24
Forest
A singles instance of active directory, can have one or more domains that share the same schema
25
Schema master
The DC that is allowed to make changes to the schema, one in entire forest
26
Domain Naming master
The DC responsible for the forest-wide namesspace must be on the DC that is alos a global catalog server
27
PDC emulator
used for backward compatibility with windows NT DCs and for propogating password changes quickly across all DCs in the domain
28
SID
Security ID, same up to the alst 32 bits
29
RID (Relative ID) Master
Responsible for making sure that SIDs are unique within the domain, make sure last 32 bits are different
30
Infrastructure master
maintains references to objects located in another domain
31
AD Users
created within a specific domain and can authenticate against any DC within that domain
32
Domain local group
intended to be used only in within the domain it was created in, can contain universal groups from any domain and domain local groups from the same location
33
Global group
Default scope, can only be sued by computers within the domain and by members of other domains in the forest
34
Universal group
Stored on DCs that are configued as global catalogs, replicated across the entire forest, can be used by any domains in the forest, and can contain members from any domain in the forest
35
Windows profiles
an envirometn created specifically for a user, created for all new users by copying and modifying a default profile
36
Local profile
basic type, accts on a stand laone computer have a local proflie, user can modify any data in the profile
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Mandatory profile
A read only profile assigned to an account, ensures user profile is always the same, used for accoutns associated with specific tasks
38
Roaming profiles
The users profiles is stored on a network share, allows for the user to always have a consistent enviroment as changes are always available
39
Folder redirection
seperate uer data from profile data
40
Name resolution
Converts between human names and network addresses
41
Forward resolution
goes from names to addresses
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reverse resolution
goes from addresses to names
43
NetBIOS names
used in Microsoft file and print sharing
44
DNS names
used for internet protocols and hosts, also used in AD
45
Hostname
name of a computer in human readable characters
46
Namespace
name of adomain, not specifcally an AD domain, logical set of hosts signified by a name controlled by a set of name servers
47
Fully qualified domain name
hostname + namespace
48
HOSTS File
text file that helps a computer know static maps of hostnames to IP addresses
49
Name Server
DNS server that resolves FQDNs to IP addresses
50
DNS Name Space Structure
hostname.subdomain.top_level_domain, authority hneded down from top level to lower levels
51
NETBIOS
Legacy - still part of newer windows OS, used in the SMB server protocol
52
DNS
defines a hierarchical naming structure, supports IP and IPX addresses
53
DNS caching
DNS server saves the result of each DNS query
54
Dynamic DNS
Allows DNS to register their hostnames in an assigned namespace
55
Service Records
Key to workstations and servers finding domain controllers, Service name, server FQDN, port, prioriry, weight
56
Service name
standard value typically preceded by an uderscore, equivalent to the hostname
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Server FQDN
server that provides ther service
58
Port
the TCP or UDP port on which the service is available
59
Priority
number one priority
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weight
tie breaker for priority
61
_gc, global catalog
The LDAP service to look up data within the global catalog
62
_kerberos
THe authentication process
63
_kpassword
Another part of the authentication process
64
_ldap
the LDAP service to look up data within the domain
65
System Virtualization
the process of emulating hardware so it can be made availabel to multiple logical systems
66
Client based architecture
virtualization layer installed on top of an existing OS as an aplication
67
Bare-Metal Architecture
Virtualization layer isntalled directly on the hardware
68
Virtual Machine
Each enviroment available for OS isntallation
69
Guest OS
The OS installed on the VM
70
Host OS
In a hosted architecture, the OS in which the virtualization software runs
71
Hypervisor
THe software that provides the virtualization layer in a bare-metal architecture
72
Full Virtualization
uses binary translation to execute instructions, offers the est isolation and most security between VMs but is very complex
73
Paravirtualization
uses a modified guest OS to remove non-virtualizable instruction
74
Hardware assisted
Hypervisor traps non-virtualizable isntructions and re-issues them to hardware in root mode, whish is a function of CPU enhancements
75
Memory virtualization
uses virtual to physical mappings maintained by the hypervisor
76
Device and I/O virtualization
involves managing the routing of I/O requests between virtual devices and the shared physical hardware
77
ESX Server
extensions to the linux kernal that include functionality of script execution, 3rd party hardware monitoring and low level backup
78
ESXi Server
same functionallity as ESX server, uses special vm for console functionality, can be embedded or installable
79
virtual networking
in a virtualized enviroment, network access is virtualized as well
80
vSwitches
segregated into port groups, each has a seperate 802.1Q VLAN
81
Kernel port groups
used by the hypervisor needed for management, vmotion, san storage
82
VM port groups
Used by VMs for connectivity
83
identity source
a repository for users and groups that vcenter sso can use for authentication
84
Default domain
used by vcenter sso to authenitcate users when the user logs on without a domain name
85
VMSF-6.5
allows concurrent access to shared storage, can be dynamically expanded, uses a 1MB block size, uses subblock addressing, provides on-disk block-level blocking
86
Migration
moving a VM from one host or datastore to another host or datastore
87
cold migration
migrate a powered off VM
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suspended migration
migrate a VM that is suspended
89
vSphere vMotion
migrate a Vm that is powered on
90
vSphere Storage vMotion
Migrate a VMs files while the VM is powered on to another datastore
91
High Availability
a systm this continuosly opertion for an optimal length of time
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vSphere Fault Tolerance
part of HA, designed so that a backup VM can immediately take over with no loss of service when an outage occurs
93
Block devices
physical device (hard drive)
94
File containers
Logical device (formatted partition)
95
Cluster
smallest unit of data that the file system will read or write
96
File system
a hierarchy of files and their respective directories
97
Disk partitioning
Each disk is brok into one or more partitions, each holds one file system, no dynamic way to combine or resize file systems on physical partitions
98
Volumes and slices
block device are divided or aggregated into volumes or slices, can be resized as required
99
Partitions
a collection of consecutive sectors in a volume, also a volume
100
Journal file system
logs intended changes to a journal before they are made, used to replay changes if a crash occurs
101
Basic disk
contain basic volumes
102
Basic volumes
primary partitions, extended partitions, and logical drives
103
Dynamic Disks
Contain dynaic volumes
104
Dynamic volumes
5 types, simple, spanned, striped, mirrored, RAID-5
105
Simple
uses free space from a single disk
106
Spanned
Uses free space sequentially across multiple disks
107
Striped
Uses free space hat is interleaved through multiple disks
108
Mirrored
Uses free space on disk that is duplicated on a second disk (RAID 1)
109
RAID-5
Uses free space across three or more disks and uses one for parity or fault tolerance
110
Master Boot Record
Where the system boots from in Intel x86 systems, stored in the boot sector, tells the system where to find the active bootable partition
111
ATA
uses 40-pin ribbon cable to connect hard drives
112
SATA
provides more bandwidth, higher speed and smaller footprint than ATA
113
SCSI
used in high performacne systems and RAID arrays
114
Drive
Physical torage mechanism
115
Disk controller
controls read/write from/to drives, all transactions are originated by the controller
116
RAID
Can be used to aggregate multiple devices into a single, fault tolerant, higher perfoming storage device
117
RAID
redundant array of inexpensive disks, used to create a single logical disk from multiple physical disks
118
Hardware RAID
RAID operations are manged by the attachment controller, looks like a single large drive to a the computer
119
Software RAID
operations are manged by the OS, can limit RAID types
120
RAID 0 (striping)
Data is distributed across multiple disks, increased performance, no redundancy
121
RAID 1 (mirroring)
Data is duplicated acorss multiple disks, no increased perfomrance
122
RAID 5 (Striped with parity)
Dat ais striped across multiple disks, parity is kept for each set of stripes, increased performance, provides some redundancy
123
RAID 10/1+0 (Mirrored Stripes)
Stripes data across multiple disks wich are then mirrored, increased performance, fault tolerant
124
Network atached storage
File level storage that is avaialable over the network, already partioned and formatted
125
Storage Area Netwokes
Block level storage accessible over a networkm, uses dedicated hardware to interconnect the storage arrays (iSCSI)
126
iSCSI
Internet Small Computer Systems Interface, SCSI command protocol over TCP/IP
127
Initiator
Device that originates a session to a storage device
128
Target
The storage device to which an initiator connects
129
LUN
A logical device/partition presented over the network
130
Network fabric
the interconnection between nodes
131
iQN
iSCSI Qualified name, iqn.yyyy.mm
132
Eui
extended Unique Identifier, eui.{EUI-64 bit address}
133
Backup
Making copies of data that can be used to restore in the event of a data loss event
134
Full Backups
Back up all files every time, disregards the archive bit setting
135
Differenctial Backups
Back up files that have been changed or added since the last Full backup, Level 1 backup
136
Incremental Backups
BAck up files that have changed or been added since last backup of any kind
137
Custom backups
Enables you to configure backups differently for each
138
Subnets
used to determine relative location of an item in the directory
139
Sites
Reflects one or more interconnected subnets
140
DFS Namespace
A central network file sharing hierarchy
141
Namespace server
Server that contains the namespace root
142
Target
A network share located on a server that is part of the namespace
143
Referral
The process of pointing a client to a target
144
DFS Folder
A folder within the namespace, virtual or a referral to an actual target
145
Scripts
Sequence of instructions telling a program to do something
146
Scripting languages
Programming languages wuth limit functionality
147
System image
Standardized client software installations
148
WSUS
Microsoft powered tool to automate windows updates
149
Software/Hardware audits
can assist in buidling and maintaining a hardware database
150
Proprietary Licensing
A license is granted for use of a copy of software but ownership of the copy remains with the publisher
151
time-based licensing
software rental, perpetual or annual
152
Deployment based licensing
licensing based on how software is deployed
153
stand alone licensing
Software that runs on an individual machine rather than in a clinet/server enviroment
154
Per-Connection licenses
Enforced on the server and governs the number of concurrent connetions to that particular server
155
Client Access Licenses
Enforced on the client and governs how a client can access a server based resource
156
Volume licensing
Alows a single license key to validate multiple software copies
157
Open source licensing
License granted for use of a copy of software and ownership of the copy transfers to the end user
158
Direct Printing model
application printed directly to the printer
159
Modern printing model
uses a print server to manage communications between clients and printers
160
LPR
traditional printer protocol for a delivery access network
161
RAW
default networking printing protocol in modern windows systems
162
CUPS
de facto printing protcol in UNIX systems to enable print server functionality
163
PDL
A programming language used to describe the print job to the printer
164
PCL
Printer command language, simple efficient lightweight, de facto standard for inkjet printing
165
Postcript
developed for laser printer and licensed to adobe
166
SCCM
System Center Configuration Manager
167
BITS
Background Intelligent Service, transfers files between a client and a server and provides progress infprmation related to the transfers
168
BrancheCache
WAN bandwidth optimization technology
169
Application Virtualization
Allows apps to be encapsulated from the underlying OS
170
SaaS (Software as a sService
Software hosted by a provider designed to run in a web browser
171
PaaS (Platform as a Service)
Delivers a development enviroment to app developers as a service over the cloud
172
IaaS (Infrastructure as a Service)
Allows the custoemr to provision resources on an as needed basis
173
Public cloud
Clients and service providers are seperate entities
174
Private Cloud
Infrastructure is owned and operated solely for a single organization
175
Community Cloud
Shared by multiple organizations all supporting a single commnity with shared concerns
176
Hybrid Cloud
Any combination of clouds that remain unique entities but are bound together through the sue of technology that enables data and applicaiton portability
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