Computer Memory and Storage

MBR (Master Boot Record) and GPT (GUID Partition Table) are the two primary partition styles used to organize layout on storage drives. SATA and PATA refer to physical hardware interface standards and connection types, not to storage device partitioning schemes.

Common hard drive interfaces include SATA (Serial ATA) and PATA (Parallel ATA) for internal drives. FireWire and iLink (IEEE 1394) are external interfaces used with external hard drives. PRIMARY is not an interface type - it refers to a primary partition. NT is not a valid hard disk interface.

A Virtual Tape Library (VTL) emulates physical tape drives using disk storage, presenting tape-like media to backup software while using hard disks for actual data storage. It's commonly used for backup and recovery, providing faster access than physical tape while maintaining compatibility with tape-based backup workflows.

The question describes a system comprising many pieces of hard disks that requires its own management system - this refers to a Storage Box which contains multiple disks and management software. A Storage Area Network (SAN) provides network-level storage access, Storage Controller is a component, and NAS is network-attached storage but doesn't necessarily contain 'many pieces of hard disks' requiring its own management system in the same way.

RAID configurations, such as RAID 5 or RAID 6, support data redundancy. If a drive fails, the SAN system automatically uses parity data or mirror copies from the remaining active drives to rebuild the lost information onto a configured hot spare disk, avoiding any data loss.

RAM is volatile memory, meaning it loses its contents when power is removed. The question incorrectly states RAM is 'UN Volatile' (non-volatile). Non-volatile memory like ROM, flash storage, or hard drives retains data without power. The 'In Currently Use' phrasing is also grammatically incorrect but doesn't change the core fact - RAM holds active programs and data but requires constant power to maintain them.

ROM is Read-Only Memory that cannot be written to after manufacture. It is preprogrammed with permanent instructions. Option A is false because ROM retains data without power. Option B is false because ROM is soldered or built-in, not plugged in like RAM.

RAM is volatile memory that requires constant power to maintain stored data. When power is lost, RAM contents are erased. ROM, hard disks, and floppy disks retain data without power.

Smart cards contain both a processor chip and memory, allowing them to store and update information. Magnetic strips (magnetic cards) have no processor. Memory cards lack a processor. 'Processor card' is not the standard term.

Floppy disks are the slowest because they have low rotational speeds and old technology. Hard disks are much faster. Option C 'tap disk' is likely a typo for tape (sequential access) or an error, but floppies remain the slowest among common magnetic media.

Hard disks have faster access times compared to other listed storage devices. They use spinning platters with read/write heads that can quickly access any data location, unlike sequential access devices like magnetic tape or slower removable media like floppy/zip disks.

GAC stands for Global Assembly Cache, a .NET framework component that stores assemblies designated to be shared across multiple applications. It's a centralized repository for strongly-named .NET assemblies.

Blu-ray discs have the highest storage capacity among the options: standard single-layer Blu-ray holds 25GB, dual-layer holds 50GB. DVDs hold 4.7GB (single-layer) or 8.5GB (dual-layer). CDs hold 700MB. Floppy diskettes hold only 1.44MB. Blu-ray clearly has the most information capacity.

In IIS 7.0, each application pool has a baseline memory footprint of approximately 3 MB of private bytes and 5 MB of page file usage. This is the minimum memory overhead for a worker process before the actual application code even starts executing. Options B and C swap or zero out values incorrectly, while D is incorrect because application pools have fixed overhead costs.

IIS application pools can have memory limits configured through several settings: 'Private Memory Limit' (kernel-mode limit on private bytes), 'Virtual Memory Limit' (limits virtual address space), and 'Request Memory Limit' (per-request memory threshold). When these limits are exceeded, IIS can recycle the worker process, take no action, or trigger other configurable responses. This prevents runaway processes from consuming all server memory.