CIIP REVIEW TIPS QUESTIONS AND ANSWERS SET
A+
✔✔Denial of Service (DOS) - ✔✔Short for denial-of-service attack, a type of attack on a
network that is designed to bring the network to its knees by flooding it with useless
traffic. For all known DoS attacks, there are software fixes that system administrators
can install to limit the damage caused by the attacks.
✔✔diagnostic workstation - ✔✔A workstation used for viewing images for primary
diagnosis and/or production of clinical reports. A reporting workstation will commonly
have multiple display monitors, usually 2 or 4 screens, to allow for the simultaneous
display of multiple images. These monitors will be of high quality and resolution.
✔✔DICOM - ✔✔Digital Imaging and Communications in Medicine is the industry
standard for transferal of radiologic images and other medical information between
computers. Patterned after the Open System Interconnection of the International
Standards Organization, DICOM enables digital communication between diagnostic and
therapeutic equipment and systems from various manufacturers.
✔✔DICOM gateway - ✔✔An interface between a modality and PACS. This will allow the
transfer of images or data when the PACS and the modalities have DICOM conflicts.
✔✔DICOM header - ✔✔In DICOM an image, which is the standard medical image, has
an associated DICOM header. This contains information pertaining to the image e.g.
patient name or image information such as the size of the image. The header contains
the information that allows the computer to exchange information related to the image
with other devices and perform tasks on the data.
✔✔digital certificate - ✔✔An electronic certificate that establishes your credentials when
doing transactions on the Web.
, ✔✔Digital Subscriber Line (DSL) - ✔✔DSL (Digital Subscriber Line) is a technology for
bringing high-bandwidth information to homes and small businesses over ordinary
copper telephone lines.
✔✔digitizer - ✔✔A device used to scan a traditional X-ray film to create a digital image
data file. There are two types of film digitisers in common use. Both use lasers to scan
the film to create the digital image; however one uses photo-multiplier tubes (PMT) to
capture the light whereas the other uses charged coupled device (CCD) technology.
✔✔Disk Operating System (DOS) - ✔✔A command line operating system that Windows
runs on top of. Bill Gates created DOS while working for IBM.
✔✔Domain Name System (DNS) - ✔✔The Domain Name System is the system that
translates Internet domain names into IP numbers. A "DNS Server" is a server that
performs this kind of translation.
✔✔Dynamic Host Configuration Protocol (DHCP) - ✔✔Software that automatically
assigns IP addresses to client stations logging onto a TCP/IP network. It eliminates
having to manually assign permanent IP addresses.
✔✔endian - ✔✔Words in computers, are created from 2 or 4 bytes. In a big-endian
architecture, the leftmost byte of a word is the most significant. In a little-endian
architecture, the rightmost byte is most significant. Most PCs use little endian
architecture; big endian architecture is mainly used in larger computers.
✔✔ethernet - ✔✔This is the most widely used architecture in local area networks (LAN).
It is defined by the IEEE as the 802.3 standard. Ethernet operates over various types of
physical media such as coaxial, shielded or unshielded twisted pair and fibre optics. It
normally operates at 10 or 100 Mbps but new versions can operate at Gbit (1000 Mbps)
transfer rates.
✔✔extension - ✔✔A suffix at the end of a file name that indicates the format or usage of
a file. For example, .doc, .txt, or .jpg.
✔✔extranet - ✔✔the part of a company or organization's internal computer network
which is available to outside users, for example, information services for customers.
✔✔Failover - ✔✔A backup operation that automatically switches to a standby system
(database, server or network), if the primary system fails or is temporarily shut down.
Failover is an important fault tolerance function of PACS.
✔✔Fibre Channel - ✔✔a technology for transmitting data between computer devices at
a data rate of up to 1 Gbps (one billion bits per second).
A+
✔✔Denial of Service (DOS) - ✔✔Short for denial-of-service attack, a type of attack on a
network that is designed to bring the network to its knees by flooding it with useless
traffic. For all known DoS attacks, there are software fixes that system administrators
can install to limit the damage caused by the attacks.
✔✔diagnostic workstation - ✔✔A workstation used for viewing images for primary
diagnosis and/or production of clinical reports. A reporting workstation will commonly
have multiple display monitors, usually 2 or 4 screens, to allow for the simultaneous
display of multiple images. These monitors will be of high quality and resolution.
✔✔DICOM - ✔✔Digital Imaging and Communications in Medicine is the industry
standard for transferal of radiologic images and other medical information between
computers. Patterned after the Open System Interconnection of the International
Standards Organization, DICOM enables digital communication between diagnostic and
therapeutic equipment and systems from various manufacturers.
✔✔DICOM gateway - ✔✔An interface between a modality and PACS. This will allow the
transfer of images or data when the PACS and the modalities have DICOM conflicts.
✔✔DICOM header - ✔✔In DICOM an image, which is the standard medical image, has
an associated DICOM header. This contains information pertaining to the image e.g.
patient name or image information such as the size of the image. The header contains
the information that allows the computer to exchange information related to the image
with other devices and perform tasks on the data.
✔✔digital certificate - ✔✔An electronic certificate that establishes your credentials when
doing transactions on the Web.
, ✔✔Digital Subscriber Line (DSL) - ✔✔DSL (Digital Subscriber Line) is a technology for
bringing high-bandwidth information to homes and small businesses over ordinary
copper telephone lines.
✔✔digitizer - ✔✔A device used to scan a traditional X-ray film to create a digital image
data file. There are two types of film digitisers in common use. Both use lasers to scan
the film to create the digital image; however one uses photo-multiplier tubes (PMT) to
capture the light whereas the other uses charged coupled device (CCD) technology.
✔✔Disk Operating System (DOS) - ✔✔A command line operating system that Windows
runs on top of. Bill Gates created DOS while working for IBM.
✔✔Domain Name System (DNS) - ✔✔The Domain Name System is the system that
translates Internet domain names into IP numbers. A "DNS Server" is a server that
performs this kind of translation.
✔✔Dynamic Host Configuration Protocol (DHCP) - ✔✔Software that automatically
assigns IP addresses to client stations logging onto a TCP/IP network. It eliminates
having to manually assign permanent IP addresses.
✔✔endian - ✔✔Words in computers, are created from 2 or 4 bytes. In a big-endian
architecture, the leftmost byte of a word is the most significant. In a little-endian
architecture, the rightmost byte is most significant. Most PCs use little endian
architecture; big endian architecture is mainly used in larger computers.
✔✔ethernet - ✔✔This is the most widely used architecture in local area networks (LAN).
It is defined by the IEEE as the 802.3 standard. Ethernet operates over various types of
physical media such as coaxial, shielded or unshielded twisted pair and fibre optics. It
normally operates at 10 or 100 Mbps but new versions can operate at Gbit (1000 Mbps)
transfer rates.
✔✔extension - ✔✔A suffix at the end of a file name that indicates the format or usage of
a file. For example, .doc, .txt, or .jpg.
✔✔extranet - ✔✔the part of a company or organization's internal computer network
which is available to outside users, for example, information services for customers.
✔✔Failover - ✔✔A backup operation that automatically switches to a standby system
(database, server or network), if the primary system fails or is temporarily shut down.
Failover is an important fault tolerance function of PACS.
✔✔Fibre Channel - ✔✔a technology for transmitting data between computer devices at
a data rate of up to 1 Gbps (one billion bits per second).
