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132 Cards in this Set
- Front
- Back
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ACL |
Access Control List |
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API |
Application Programming Interface |
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APM |
Application Performance Monitor |
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ATA |
Advanced Technology Attachment |
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BCP |
Bridge Control Protocol |
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BIA |
Business Impact Analysis |
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BIOS |
Basic Input/Output System |
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BMR |
Bare Metal Restore |
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BPaaS |
Business Process as a Service |
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BUN |
Backup Network |
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C2C |
Cloud to Cloud |
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C2D |
Cloud to Database |
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CAB |
Change Advisory Board |
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CAN |
Campus Area Network |
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CaaS |
Communication as a Service / Computing as a Service |
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CAS |
Content Addressed Storage |
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CIIS |
Client Integration Implementation Service |
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CMDB |
Configuration Management Database |
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CNA |
Converged Network Adapter |
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COLO |
Co-Location |
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COOP |
Continuity of Operations Plan |
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CRL |
Certificate Revocation List |
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CRM |
Customer Relationship Management |
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CSP |
Content Service Provider |
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D2C |
Datacenter to Cloud |
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DaaS |
Data as a Service |
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DAC |
Discretionary Access Control |
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DAS |
Direct Attached Storage |
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DBaaS |
Database as a Service |
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DBMS |
Database Management Server |
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DCB |
Datacenter Bridging |
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DHCP |
Dynamic Host Configuration Protocol |
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DMZ |
Demilitarized Zone |
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DNS |
Domain Name Service |
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DRP |
Disaster Recovery Plan |
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FC |
Fibre Channel |
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FCIP |
Fibre Channel over IP |
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FCoE |
Fibre Channel over Ethernet |
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FTP |
File Transfer Protocol |
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ftps |
FTP over SSL |
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GPT |
GUID Partition Table |
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GUI |
Graphical User Interface |
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HA |
High Availability |
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HAV |
Hardware Assisted Virtualization |
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HBA |
Host Bus Adapter |
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HTTPS |
Hypertext Transfer Protocol Secure |
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IaaS |
Infrastructure as a Service |
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ICMP |
Internet Control Management Protocol |
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IDS |
Intrusion Detection System |
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IFCP |
Internet Fibre Channel Protocol |
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IPMI |
Intelligent Platform Management Interface |
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IPS |
Intrusion Protection system |
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IQN |
Initiator Qualified Name |
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ISP |
Internet Service Provider |
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iSCSI |
Internet SCSI |
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ISNS |
Internet Storage Name Service |
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JBOD |
Just of bunch of Disks |
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KVM |
Keyboard Video Mouse |
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L2TP |
Layer 2 Tunneling Protocol |
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LAN |
Local Area Network |
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LUN |
Logical Unit Number |
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MAC |
Mandatory Access Control |
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MAN |
Metropolitan Area Network |
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MBR |
Master Boot Record |
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MDF |
Main Distribution Facility |
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MSP |
Managed Service Provider |
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MTBF |
Mean Time Between Failure Amount of time that has elapsed between failures Expressed in hours Derived from uptime / downtime Important for mission-critical components If it is small value, it means if fails more often Larger value means that it takes longer for the “thing” to fail The SLA should contain MTBF metric |
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MTTF |
Mean Time To Failure |
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MTTR |
Mean Time To Recovery Recover a system from failure May mean how long it takes to recover Determined by how long can you tolerate an outage? Spelled out in SLA |
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MTU |
Maximum Transmission Unit |
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NAS |
Network Attached Storage |
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NFS |
Network File System |
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NIS |
Network Information Service |
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NNTP |
Network News Transport Protocol |
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NOC |
Network Operations Center |
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NPIV |
N_Port ID Virtualization |
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OLA |
Operational Level Agreement |
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OSD |
Object Storage Device |
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P2P |
Physical to Physical |
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P2V |
Physical to Virtual |
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PaaS |
Platform as a Service |
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PAT |
Port Address Translation |
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PIT |
Point-in-Time backup or snapshot |
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QA |
Quality Assurance |
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RAID |
Redundant Array of Inexpensive Disks For most small- to midsize-business purposes, RAID 0, 1, 5 and in some cases 10 suffice for good fault tolerance and performance. |
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RBAC |
Role-based Access Control |
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PBX |
Public Branch Exchange |
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RDP |
Remote Desktop Protocol |
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RIP |
Routing Information Protocol |
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RPO |
Recovery Point Objective Determined from how much data loss can be tolerated? Used in DR plans to determine backup strategy E.g., if you have a 6 hour RPO, then your backups must be run every 6 hours to meet the RPO |
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RTO |
Recovery Time Objective System downtime metric Restoration of a business process to normal operations Determined by how long does it take to return to normal operations for an *entire* system. May include multiple IT systems (i.e., app server, db server, web server) Shorter RTOs = costs more |
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SaaS |
Software as a Service |
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SAN |
Storage Area Network |
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SAS |
Serial Attached SCSI |
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SATA |
Serial ATA |
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SCSI |
Small Computer System Interface |
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SDLC |
Software Development Life Cycle |
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SFTP |
Secure FTP |
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SLA |
Service Level Agreement |
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SNMP |
Simple Network Management Protocol |
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SSD |
Solid State Disk |
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SSH |
Secure Shell |
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SSO |
Single Sign-On |
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TCO |
Total Cost of Operations/ Ownership |
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TTD |
Technical Training Device |
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UAT |
Universal Access Transceiver |
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UDP |
Universal Diagram Protocol |
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UPS |
Universal Power Supply |
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UTA |
Universal Target Adapter |
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V2P |
Virtual to Physical |
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V2V |
Virtual to Virtual |
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VAT |
Virtual Allocation Table |
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VCPU |
Virtual CPU |
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VLAN |
Virtual LAN |
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VM |
Virtual Machine |
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VNIC |
Virtual NIC |
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VPN |
Virtual Private Network |
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VRAM |
Virtual RAM |
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VSAN |
Virtual SAN |
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Vswitch |
Virtual Switch |
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VTL |
Virtual Tape Library |
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WAN |
Wide Area Network |
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WMI |
Windows Management Implementation |
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WWNN |
WorldWide Node Name |
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WWPN |
WorldWide Port Name |
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XaaS |
anything as a Service |
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RAID 0 |
- Used to boost a server's performance - "disk striping" - Data is written across multiple disks. - two disks are required. - Both software and hardware RAID support RAID 0 - Downside: no fault tolerance. |
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RAID 1 |
- fault-tolerant - "disk mirroring" - data is copied simultaneously, from one disk to another, creating a replica, or mirror. - simplest way to implement fault tolerance - low cost. - Downside: slight drag on performance - implemented through software or hardware. - minimum of two disks are required hardware implementations. software RAID 1, data can be mirrored between volumes on a single disk. - cuts total disk capacity in half |
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RAID 5 |
- most common RAID configuration for business servers/NAS devices - provides better performance than mirroring as well as fault tolerance - data and parity (which is additional data used for recovery) are striped across three or more disks. If a disk gets an error or starts to fail, data is recreated from this distributed data and parity block — automatically. - Can suffer 1 drive failure - drive can be swapped with a new drive without shutting down the server and without user interruption - Downside: performance hit to servers that perform a lot of write operations. Not ideal for databases for example. |
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RAID 6 |
- frequently used in enterprises. - identical to RAID 5, except it uses one more parity block than RAID 5. - Can suffer 2 drive failures |
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RAID 1+0 (RAID 10) |
- combination of RAID 1 and 0 - combines the mirroring of RAID 1 with the striping of RAID 0 - gives the best performance - costly, requiring twice as many disks as other RAID levels, for a minimum of four - ideal for highly utilized database servers or any server that's performing many write operations (i.e., databases) - implemented as hardware or software; general consensus is performance advantages are lost when you use software RAID |
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RAID 0+1 |
- mirrored array with segments that are RAID 0 arrays. - implemented in specific infrastructures requiring high performance but not a high level of scalability. |
