D
- DAR
- DAR Direct Access Recovery
- DAS directly attached storage
- DASH Desktop and Mobile Architecture for System Hardware
- DCM Data Change Map
- DDI
- DDR Dynamic Document Review
- DES Data Encryption Standard
- DG
- DHCP
- DHCP Dynamic Host Configuration Protocol
- DHCP Enforcer
- DIS Digital Immune System
- DLL
- DLL dynamic link library
- DLO backup selection
- DLO database
- DLT
- DMI Desktop Management Interface
- DMP
- DMTF Distributed Management Task Force
- DMZ demilitarized zone
- DNS
- DNS Domain Name Server proxy
- DNS Domain Name System
- DNS server
- DNS spoofing
- DP data protection
- DPI dots per inch
- DRM Digital Rights Management
- DRU
- DSS Decision Support Systems
- DSX Dynamic Security Extension
- DUD Driver Update Disk
- DVD Digital Versatile Disc
- Data Change Map DCM
- Data Processing Service
- Data Processing Service Collector
- Data Processing Service Evaluator
- Data Processing Service Load Balancer
- Data Processing Service Reporter
- Data Protection
- Data Storage Checkpoint
- Data Volumes
- Decision Support Systems
- Decision only-type project
- Delta File Transfer
- Desktop Security 2010
- Device Discovery Layer
- Device-relative extent
- Differential - Back up changed files since last full
- Differential - Using modified time
- DirectDraw
- DirectX
- Directory Support Service
- Dirty Region Logging DRL
- Discovery Domain
- Discovery Domain Set
- Disk Heartbeat GABDISK
- Disk Signature
- Disk Striping
- Distributed Management Task Force DMTF
- DoS Denial of Service
- DoS denial-of-service attack
- Documentation Library
- Domain Administrator role
- Domain Controller
- Domain Name Service DNS
- Dropper
- Duplicate Backup Sets template
- Dynamic Host Configuration Protocol
- Dynamic Relayout
- daemon
- damage
- dashboard
- data block
- data change object
- data class
- data class attribute
- data class attribute parameter
- data collector
- data connection NDMP
- data de-duplication
- data item filter
- data location
- data lock password
- data management application NDMP
- data mover
- data protection
- data rate
- data selection removal
- data service NDMP
- data source
- data stream NDMP
- data stripe
- data synchronous writes
- data template
- data transfer
- data transmission
- data trickle
- data volume
- data-driven attack
- database
- database replication
- database-extension clients
- datafile
- dataserver
- datastore
- debug log
- debugger
- decode
- decrypt
- dedicated device
- deduplication
- defense in-depth
- defer
- definitions
- defragmentation
- degrades performance
- delayed apply
- deletes files
- delivery MTA
- denial of service DoS attack
- denial-of-service attack
- deploy
- deployment
- deport
- desktop computer
- destination IP address
- destination computer
- destination port
- destination server
- destination storage unit
- detection rule
- device delays
- device file
- device handle
- device name
- dhad domain high availability daemon
- dial
- dialer
- differential incremental backup
- digital certificate
- digital signature
- direct connection
- direct disk access
- direct event
- direct extent
- directory
- directory data source
- directory harvest attack
- directory server
- directory tree
- disabled
- disabled path
- disaster recovery
- discovered
- discovered direct I/O
- disk
- disk ID
- disk access name
- disk array
- disk array serial number
- disk cache
- disk device
- disk enclosure
- disk group ID
- disk media record
- disk-image backup
- disposition
- dissociated plex
- dissociated subdisk
- distributed catalog
- distributed command
- distributed disk group
- distributed lock manager
- distribution
- dock
- dom 0
- dom U
- domain
- domain 0
- domain administrator
- domain entity
- domain name
- download
- download folder
- downstream
- downstream Active Practice
- downstream post office
- drive cleaning
- drive lock
- drive path
- drive status
- driver
- driver-level protection
- drop-down list box
- dump
- duplicate backup
- duplicate image
