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Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Take Free Test
Memory and Storage Questions
Nonvolatile memories — UV-erasable category Which type of ROM device can be erased by exposure to ultraviolet (UV) light through a quartz window?
RAM diagnostics — interpreting the checkerboard test When a RAM module passes a checkerboard pattern memory test, which conclusion is most appropriate?
DRAM cell refresh — common refresh period For mainstream dynamic RAM (DRAM) devices, which of the following is the typical refresh period used to retain data stored on capacitive cells?
ROM data retention characteristic ROM devices retain their stored data under which power condition?
Driving multiple TTL loads from a bus — memory interface requirement Because CPUs and memory ICs are typically specified to drive only one standard TTL load, what must be added if several inputs are being driven from the same bus line?
Write-cycle timing — correct sequence for a memory write Which timing sequence correctly describes a synchronous write operation to memory?
RAM speed — key timing parameters Which timing parameters primarily set a RAM device’s operating speed?
Core advantage of semiconductor RAM What is the principal advantage of semiconductor RAM compared with sequential-access memories like magnetic tape?
Memory technologies — relative bit-cell size In general, which technology has the smallest bit-cell area and which has the largest, when comparing common integrated memory types?
Characteristics of an ideal memory device Which statement best describes an “ideal” memory for digital systems?
Reading logic symbols — output bubbles/triangles In the shown memory/logic device, small inverted triangles (inverters) appear at the outputs. What do they indicate about the outputs?
Mask ROM programming concept Which statement correctly describes how a bit is stored in a mask ROM cell?
Static RAM (SRAM) vs. Dynamic RAM (DRAM) What is the basic operational difference between SRAM and DRAM in terms of data retention?
Address space sizing With an 8-bit address code, how many unique memory locations can be selected?
Types of ROM — factory mask options Which ROM type must be custom programmed by the manufacturer during fabrication (i.e., mask-programmed)?
Key DRAM characteristic — refresh requirement Which statement is a fundamental characteristic of dynamic RAM (DRAM) devices?
Purpose of DRAM refresh cycles Why is a refresh cycle necessary in dynamic RAM (DRAM)?
Recognizing valid memory types Which of the following is NOT a recognized memory type designation in standard usage?
In dynamic RAM (DRAM) design, what are the basic refresh modes used to periodically restore the stored charge in the memory cells?
In computer architecture, what components are considered part of the main (primary) memory of a computer system, as opposed to secondary storage?
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