Memory and Security Concepts Quiz

What is the key advantage of RAMBUS over traditional SDRAM?

• It transfers data one bit at a time

• It transfers data in large blocks for higher bandwidth

• It is cheaper to manufacture

• It consumes less power

How does DDR SDRAM improve on traditional SDRAM?

• It operates without synchronization

• It transfers data on both the rising and falling edges of the clock cycle

• It uses single-bit transfers

• It is slower than traditional SDRAM

What is the primary mechanism used by RAMBUS to transfer data?

• Single-bit transfers

• Block-based transfers

• Packet-based transfers

• Burst transfers

What type of data transfer mechanism is commonly used in networking?

• Block-based transfers

• Single-bit transfers

• Packet-based transfers

• Burst mode

In what way does burst mode improve memory performance?

• It allows for continuous transfer of data

• It breaks data into smaller packets for easier handling

• It reduces the bandwidth usage

• It delays the data transfer

What is the main disadvantage of the FIFO page replacement algorithm?

• It can lead to suboptimal performance because it doesn't consider the frequency or recency of page accesses

• It is difficult to implement

• It consumes too much memory

• It has high computational overhead

What is the function of the dirty bit in memory management?

• It tracks which pages have been accessed recently

• It indicates whether a page has been modified since it was loaded into memory

• It marks the pages to be kept in memory

• It shows the memory address of the page

Which page replacement algorithm uses the reference bit to decide which page to replace?

• FIFO

• LRU

• Optimal page replacement

• Clock algorithm

In a virtual memory system, what does the valid/invalid bit indicate?

• Whether the page has been accessed

• Whether the page is currently in physical memory

• Whether the page has been modified

• Whether the page is dirty

Which of the following is a key feature of cloud security?

• Data encryption

• Device management

• Access control for IoT devices

• Multi-factor authentication for users