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IPT Preliminary Exam Revision Exam Questions And Accurate Answers
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IPT Preliminary Exam Revision Exam Questions AndAccurate Answers
Lossy Compression - Answer Permanently removes data.
Lossless Compression - Answer Means that as the file size is compressed, the picture
quality remains the same and it does not get worse
Switch Function - Answer A computing network device that connects devices together
on a computer network.
Raster - Answer An image stored in memory as a bitmap.
Vector - Answer Don't use pixels instead of use lines and curves to make up an image.
Vectors are less detailed and often take up less storage.
Bitmap - Answer Sstored as a series of pixels which are represented by 0 and 1.
Bitmaps are very detailed but take up a lot more storage.
Non-Volatile Data - Answer Retrieves stored data without power.
Volatile Data - Answer Information that is residing in memory or in transit between
networks, and will be lost once a computer is powered down.
Simplex Transmission - Answer This allows for data to move in only one direction and it
does not require a return signal. A computer mouse and keyboard operate by using
simplex.
, Half Duplex Transmission -Answer Allows the data to move in both directions but not at
the same time. Most computer networks use half duplex.
Asynchronous Communication -Answer Has no set time for data to be transmitted and
received.
Full Duplex -Answer Allows the data to move simultaneously in both directions. Fastest
and most efficient way and used when devices are connected together like a computer
and modem.
Synchronous Transmission - Answer Has a set time for data to be transmitted and
received.
Relative Cell Reference - Answer When data are copied across more cells they change
based upon the relative position of rows and columns.
Absolute Cell Reference - Answer Where a cell reference maintains constant.
Primary Data Storage - Answer The main storage of the computer or main memory
which is the random access memory or RAM.
Storage of Secondary Data - Answer External devices used to store data on a long term
basis.
Router - Answer The function: It forwards packets of data along networks. A router is
connected to at least two networks. Routers are at gateways .
Bridge - Answer Filters data traffic at network boundary. It reduces the number of traffic
on a LAN by splitting it into two networks.
Gateway Function : A description of why this protocol is used to connect two different
protocols and transfer information from one system sets of protocols to another.
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