Which type of memory is used to permanently store Cisco IOS Software?
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A. B. C. D.A.
The correct answer is B. Flash.
Cisco IOS software is stored in non-volatile memory, which means that the software is retained even when the device is powered off. Non-volatile memory in Cisco devices is provided by two types of memory: NVRAM and flash memory.
NVRAM (Non-Volatile Random Access Memory) is a type of memory used to store the startup configuration file of a Cisco device. This file contains information about the device's configuration, such as the hostname, IP addresses, passwords, and other settings. However, the IOS software is not stored in NVRAM.
Flash memory, on the other hand, is a type of non-volatile memory that is used to store Cisco IOS software. Flash memory is a type of electrically erasable programmable read-only memory (EEPROM) that can be written and erased electronically. Flash memory provides a fast, reliable, and flexible storage solution for Cisco IOS software.
SRAM (Static Random Access Memory) and DRAM (Dynamic Random Access Memory) are types of volatile memory used by Cisco devices for processing and temporary data storage. They are not used to store Cisco IOS software permanently.
In summary, the type of memory used to permanently store Cisco IOS software is flash memory.