POPQuiz-I/O file

RAID 5 is organized in a similar fashion to _________ , but is different in the fact that RAID 5 distributes the parity strips across all disks.

• RAID 1

• RAID 2

• RAID 3

• RAID 4

The __________ unit is capable of mimicking the processor and of taking over control of the system bus just like a processor.

• interrupt-driven I/O

• I/O channel

• direct memory access

• programmed I/O

__________ external devices are suitable for communicating with electronic equipment.

• Communication

• Application

• Machine readable

• Human readable

__________ represents an open file associated with a process.

• Dentry object

• Inode object

• File object

• Superblock object

The _________ contains the core parts of the operating system, including system binaries, system libraries, and configuration files.

• data directory

• system directory

• cache directory

• mnt/sdcard directory

The simplest type of support that the operating system can provide is _________ .

• overflow buffering

• dual buffering

• single buffering

• circular buffering

On a moveable-head system, the time it takes to position the head at the track is known as ________ .

• access time

• seek time

• transfer time

• rotational delay

At the ______ layer, symbolic file names are converted to identifiers that either reference the file directly or indirectly through a file descriptor or index table.

Disk drives, USB keys, sensors, and controllers are examples of _________ external I/O devices.

An _____ is a control structure that contains the key information needed by the operating system for a particular file.