Questions and Answers
Random Access Memory (RAM) falls into the category of volatile storage media.
True
Which of the answers listed below refer(s) to the characteristic feature(s) of Static Random Access Memory (SRAM)? (Select all that apply)
Which of the following answers describes(s) the characteristics of Dynamic Random Access Memory (DRAM)? (Select all that apply)
The term 'Synchronous Dynamic Random Access Memory (SDRAM)' refers to a broad category of DRAM modules that rely on the system clock.
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Which of the statements listed below are true? (Select all that apply)
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A Single Data Rate Synchronous Dynamic Random Access Memory (SDR SDRAM) can read/write one word of data per clock cycle.
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The placement of a notch on the RAM module contact surface allows for proper alignment of the module on the motherboard.
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What are the characteristic features of the Double Data Rate Synchronous Dynamic Random Access Memory (DDR SDRAM)? (Select 3 answers)
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Which of the answers listed below refers to the industry name used for DDR-333 modules?
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What is the peak transfer rate of a DDR-266 module?
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What are the characteristic features of the Double Data Rate 2 Synchronous Dynamic Random Access Memory (DDR2 SDRAM)? (Select 3 answers)
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Which of the following answers refers to the industry name used for DDR2-1066 modules?
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What is the total bandwidth of a DDR2-533 module?
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What are the characteristic features of the Double Data Rate 3 Synchronous Dynamic Random Access Memory (DDR3 SDRAM)? (Select 3 answers)
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Which of the answers listed below refers to the industry name used for DDR3-1333 modules?
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What is the maximum amount of data that can be transferred each second by a DDR3-1600 module?
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Which of the answers listed below describe(s) the characteristics of Dual In-line Memory Modules (DIMMs)? (Select all that apply)
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What is the most common memory module form factor type used in laptop computers?
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A memory module form factor commonly used in sub-notebook devices is known as:
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ECC type RAM can detect and correct errors.
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Which of the answers listed below refers to the industry name used for DDR2-1066 modules?
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Certain types of RAM take advantage of an additional bit to detect whether a data error has occurred. What is the name of that extra bit?
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Compared to a non-ECC type of memory, the ECC RAM is a less expensive option and will always perform faster.
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The color-coded memory slots on the motherboard indicate that the system can take advantage of the multi-channel memory architecture.
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Which of the following characteristics apply to the type of RAM most commonly used as the main system memory in desktop PCs? (Select 3 answers)
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Taking advantage of the performance benefits offered by the multi-channel memory architecture requires: (Select all that apply)
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A type of typically more expensive memory modules equipped with additional circuitry designed to ensure better system stability and accuracy of data processing is known as: (Select all that apply)
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A single-sided memory module type can have memory chips placed on both sides of the module.
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Which of the following RAM types would be the most suitable choices for a high-end server? (Select 3 answers)
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Which of the memory types listed below allows for permanent storage of data?
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Study Notes
RAM Overview
- Random Access Memory (RAM) is volatile storage media that requires power to retain its data.
- Static RAM (SRAM) is faster than Dynamic RAM (DRAM) but also more expensive.
- DRAM is commonly used as the primary storage in systems and is slower and less expensive than SRAM.
Types of RAM
- Synchronous Dynamic RAM (SDRAM) uses the system clock for coordinated functioning with other components.
- Single Data Rate SDR SDRAM can read/write one word of data per clock cycle.
- Double Data Rate SDRAM (DDR SDRAM) can read/write two words per clock cycle and features 184 contact pins.
- DDR2 SDRAM has 240 contact pins and can read/write four words of data per clock cycle.
- DDR3 SDRAM also features 240 contact pins and improves bandwidth and data transfer rates compared to DDR2.
DDR Specifications
- DDR-333 is known as PC-2700, while DDR-266 has a peak transfer rate of 2133 MB/s.
- Maximum data transfer for DDR3-1600 is 12800 MB/s.
- DDR2-1066 is referred to as PC2-8500, while total bandwidth of DDR2-533 is 4266 MB/s.
Memory Module Types
- Dual In-line Memory Modules (DIMMs) utilize a printed circuit board (PCB) with separate electrical contacts on each side.
- Most common memory module form factor for laptops is SO-DIMM, while MicroDIMM is used in sub-notebook devices.
ECC and Non-ECC RAM
- Error-Correcting Code (ECC) RAM can detect and correct errors, enhancing system reliability.
- ECC RAM is typically more expensive and does not always provide better speed than non-ECC memory.
Multi-Channel Memory Architecture
- Color-coded memory slots indicate compatibility with multi-channel architectures which improve data bandwidth and performance.
- To benefit from multi-channel architecture, matching types, speeds, and capacities of memory modules are required.
Other RAM Types
- Buffered memory (RDIMM) provides stability in memory-intensive environments and is typically used in high-end servers.
- Single-sided memory modules may have chips on both sides, but generally consist of chips on one side only.
Key Definitions
- Parity bit: An extra bit used to check the integrity of data by counting how many bits are set to one.
- Buffered memory enhances system stability and accuracy, making it preferable in critical server environments.
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Description
Test your knowledge on Random Access Memory (RAM) with these flashcards. This quiz covers key concepts such as volatile storage and the characteristics of Static Random Access Memory (SRAM). Challenge yourself and enhance your understanding of computer memory!
