S's

Question 1

S.M.A.R.T.

Answer 1

(Self Monitoring Analysis and Reporting Technology)

Technology designed to alert the user to possible hard disk failures before the disk becomes unusable.

Question 2

S/MIME

Answer 2

(Secure Multipurpose Internet Mail Extensions)

Email encryption standard (Cryptographic Message Standard) using PKI (X.509) certificates for confidentiality(digital envelopes) and integrity (digital signatures). S/MIME provides extensions for standard MIME headers.

Question 3

S/PDIF

Answer 3

(Sony/Phillips Digital Interface)

A high-quality audio port that uses coax cabling with RCA connectors or fiber optic cabling and connectors. S/PDIF supports surround sound speakers.

Question 4

SaaS

Answer 4

(Software as a Service)

A cloud computing service that enables a service provider to make applications available over the Internet.

Question 5

SAS

Answer 5

(Serial Attached SCSI)

Developed from parallel SCSI, SAS represents the highest performing hard disk interface available.

Question 6

SATA

Answer 6

(Serial ATA)

The most widely used interface for hard disks on desktop and laptop computers. It uses a 7-pin data connector with one device per port. There are three SATA standards specifying bandwidths of1.5 Gbps, 3 Gbps, and 6 Gbps, respectively. SATA drives also use a new 15-pin power connector, though adapters for the old style 4-pin Molex connectors are available. External drives are also supported via thee SATA interface.

Question 7

SC

Answer 7

(Subscriber Connector) Push/pull connector used with fiber optic cabling.

Question 8

SCSI

Answer 8

(Small Computer Systems Interface)

A legacy expansion bus standard allowing for the connection of internal and external devices. SCSI 1 defines the original 8-bitbus with a transfer rate of 5 MBps. SCSI 2features a 16-bit data bus implementation(Wide SCSI) and a faster transfer rate (Fast SCSI) while maintaining backward compatibility with most of the original devices. SCSI 3 introduces further data rate enhancements (Ultra SCSI) and a serial SCSI standard (Firewire). Each device on a SCSI bus must be allocated a unique ID. The bus must also be terminated at both ends.

Question 9

SDK

Answer 9

(Software Development Kit)

A set of resources provided by a platform vendor for programmers to use when creating software to work with the vendor’s platform.

Question 10

SDN

Answer 10

(Software Defined Networking)

Application Programming Interfaces (API) and compatible hardware allowing for programmable network appliances and systems.

Question 11

SDRAM

Answer 11

(Synchronous Dynamic Random Access Memory)

A variant on the DRAM chip designed to run at the speed of the system clock, thus accelerating the periodic refresh cycle times. SDRAM can run at much higher clock speeds than previous types of DRAM. Basic SDRAM is now obsolete and has been replaced by DDR/DDR2/3 SDRAM.

Question 12

SFF

Answer 12

(Small Form Factor)

Motherboards and connectors that are designed to take up less space.

Question 13

SIM

Answer 13

(Subscriber Identity Module)

A small chipcard that identifies the user and phone number of a mobile device via an International Mobile Subscriber Identity(ISMI). A SIM card also provides a limited amount of local storage for contacts.

Question 14

SLA

Answer 14

(stereolithography)

A 3D printing method
which uses a resin or photopolymer to create objects which are cured using an ultraviolet laser.

Question 15

SLAT

Answer 15

(Second Level Address Translation)

A feature of virtualization software designed to improve the management of virtual(paged) memory.

Question 16

SLS

Answer 16

(selective laser sintering)

A 3D printing method which fuses layers together using a pulse laser, creating the object from aplastic or metal powder with the model being lowered into a tank as each layer is added.

Question 17

SMB

Answer 17

(Server Message Block)

A protocol used for requesting files from Windows servers and delivering them to clients. SMB allows machines to share files and printers, thus making them available for other machines to use. SMB client software is available for UNIX-based systems. Samba software allows UNIX and Linux servers or NAS appliances to run SMB services for Windows clients.

Question 18

SMF

Answer 18

(Single Mode Fiber)

A category of fiberoptic cable. SMF is more expensive than MMF (using high quality cable and optics)and supports much longer distances (up to about 70 km).

Question 19

SMP

Answer 19

(symmetric multiprocessing)

A condition where two or more physical CPUs that share a common OS and memory execute instructions simultaneously.

Question 20

SMT

Answer 20

(Simultaneous Multithreading)

Processing of multiple threads simultaneously.

Question 21

SMTP

Answer 21

(Simple Mail Transfer Protocol)

The protocol used to send mail between hosts on the Internet. Messages are sent over TCP port 25.

Question 22

SNMP

Answer 22

(Simple Network Management Protocol)

A protocol for monitoring and managing network devices. A management system collates data sent by agents running on each device. The agents maintain a Management Information Base of configuration and usage data. An agent can also generate a trap, alerting the management system of some notable event (such as a printer being out of paper). SNMP works over UDP ports 161and 162 by default.

Question 23

SNR

Answer 23

(Signal-to-Noise Ratio)

A sound measurement that is expressed in decibels that compares the signal power with the noise power.

Question 24

SODIMM

Answer 24

(Small Outline Dual In-line Memory Module)

Memory that is half the size of DIMMs, are available in 32- or 64-bit data paths, and are commonly found in laptops and iMac systems.

Question 25

SOHO network

Answer 25

(small office/home office network)

A small network that provides connectivity and resource sharing for a small office or home office.

Question 26

SSD

Answer 26

(solid state drive)

A personal computer storage device that stores data in non-volatile special memory instead of on disks or tape.

Question 27

SSH

Answer 27

(Secure Shell)

A remote administration and file copy program that is flexible enough to support VPNs too (using port forwarding).SSH runs on TCP port 22.

Question 28

SSID

Answer 28

(Service Set ID)

Identifies a particular Wireless LAN (WLAN). This “network name “can be used to connect to the correct network. When multiple APs are configured with the same SSID, this is referred to as an E(xtended)SSID.

Question 29

SSL

Answer 29

(Secure Sockets Layer)

A security protocol developed by Netscape to provide privacy and authentication over the Internet. It is application independent (working at layer5 [Session]) and can be used with a variety of protocols, such as HTTP or FTP. Client and server set up a secure connection through PKI (X.509) certificates (optionally, both client and server can authenticate to one another). The protocol is now being developed as Transport Layer Security(TLS).

Question 30

SSO

Answer 30

(Single Sign-on)

Any authentication technology that allows a user to authenticate once and receive authorizations for multiple services. Kerberos is a typical example of an authentication technology providing SSO.

Question 31

SSTP

Answer 31

(Secure Socket Tunneling Protocol)

Uses the HTTP over SSL protocol and encapsulates an IP packet with an SSTP header.

Question 32

ST Connector

Answer 32

(Straight Tip connector)

Bayonet-style twist-and-lock connector for fiber optic cabling.

Question 33

STP

Answer 33

(Shielded Twisted Pair cabling)

A type of network cabling used where protection from interference is required. Insulation is installed around all four pairs of twisted cables.

Question 34

SVGA

Answer 34

(Super VGA)

A variant of the VGA standard that supported 800x600 pixel resolution with 4-bit or 8-bit color.