Question 1

A block device transfers___________

Accepted Answer

A) bytes one by one 
B) block of bytes as a unit 
C) with unpredictable response times 
D) none of the mentioned 
A) bytes one by one 
B) block of bytes as a unit 
C) with unpredictable response times 
D) none of the mentioned B

Question 2

Buffering is done to___________

Accepted Answer

A) cope with device speed mismatch 
B) cope with device transfer size mismatch 
C) maintain copy semantics 
D) all of the mentioned 
A) cope with device speed mismatch 
B) cope with device transfer size mismatch 
C) maintain copy semantics 
D) all of the mentioned D

Question 3

The first linux kernel which supports the SMP hardware?

Accepted Answer

A) linux 0.1 
B) linux 1.0 
C) linux 1.2 
D) linux 2.0 
A) linux 0.1 
B) linux 1.0 
C) linux 1.2 
D) linux 2.0 D

Question 4

Which one of the following bootloader is not used by linux?

Accepted Answer

A) grub 
B) lilo 
C) ntldr 
D) none of the mentioned 
A) grub 
B) lilo 
C) ntldr 
D) none of the mentioned

Question 5

Which desktop environment is not used in any linux distribution?

Accepted Answer

A) gnome 
B) kde 
C) unity 
D) none of the mentioned 
A) gnome 
B) kde 
C) unity 
D) none of the mentioned

Question 6

A___________  is a full duplex connection between a device driver and a user level process.

Accepted Answer

A) bus 
B) i/o operation 
C) stream 
D) flow 
A) bus 
B) i/o operation 
C) stream 
D) flow

Question 7

Standard set of functions through which interacts with kernel is defined by

Accepted Answer

A) system libraries 
B) kernel code 
C) compilers 
D) utility programs 
A) system libraries 
B) kernel code 
C) compilers 
D) utility programs

Question 8

A keyboard is an example of a device that is accessed through a___________      interface.

Accepted Answer

A) block stream 
B) set of blocks 
C) character stream 
D) none of the mentioned 
A) block stream 
B) set of blocks 
C) character stream 
D) none of the mentioned

Question 9

Which one of the following linux file system does not support journaling feature?

Accepted Answer

A) ext2 
B) ext3 
C) ext4 
D) none of the mentioned 
A) ext2 
B) ext3 
C) ext4 
D) none of the mentioned

Question 10

Which one of the following is not shared by threads?

Accepted Answer

A) program counter 
B) stack 
C) both program counter and stack 
D) none of the mentioned 
A) program counter 
B) stack 
C) both program counter and stack 
D) none of the mentioned

Question 11

A process can be___________

Accepted Answer

A) single threaded 
B) multithreaded 
C) both single threaded and multithreaded 
D) none of the mentioned 
A) single threaded 
B) multithreaded 
C) both single threaded and multithreaded 
D) none of the mentioned

Question 12

If the number of cycles spent busy - waiting is not excessive, then___________

Accepted Answer

A) interrupt driven i/o is more efficient than programmed i/o 
B) programmed i/o is more efficient than interrupt driven i/o 
C) both programmed and interrupt driven i/o are equally efficient 
D) none of the mentioned 
A) interrupt driven i/o is more efficient than programmed i/o 
B) programmed i/o is more efficient than interrupt driven i/o 
C) both programmed and interrupt driven i/o are equally efficient 
D) none of the mentioned

Question 13

Which binary format is supported by linux?

Accepted Answer

A) a.out 
B) elf 
C) both a.out and elf 
D) none of the mentioned 
A) a.out 
B) elf 
C) both a.out and elf 
D) none of the mentioned

Question 14

Caching is___________  spooling.

Accepted Answer

A) same as 
B) not the same as 
C) all of the mentioned 
D) none of the mentioned 
A) same as 
B) not the same as 
C) all of the mentioned 
D) none of the mentioned

Question 15

Spooling___________

Accepted Answer

A) holds a copy of the data 
B) is fast memory 
C) holds the only copy of the data 
D) holds output for a device 
A) holds a copy of the data 
B) is fast memory 
C) holds the only copy of the data 
D) holds output for a device

Question 16

Caching___________

Accepted Answer

A) holds a copy of the data 
B) is fast memory 
C) holds the only copy of the data 
D) holds output for a device 
A) holds a copy of the data 
B) is fast memory 
C) holds the only copy of the data 
D) holds output for a device

Question 17

An asynchronous call___________

Accepted Answer

A) returns immediately, without waiting for the i/o to complete 
B) does not return immediately and waits for the i/o to complete 
C) consumes a lot of time 
D) is too slow 
A) returns immediately, without waiting for the i/o to complete 
B) does not return immediately and waits for the i/o to complete 
C) consumes a lot of time 
D) is too slow

Question 18

In polling___________

Accepted Answer

A) busy - wait cycles wait for i/o from device 
B) interrupt handler receives interrupts 
C) interrupt-request line is triggered by i/o device 
D) all of the mentioned 
A) busy - wait cycles wait for i/o from device 
B) interrupt handler receives interrupts 
C) interrupt-request line is triggered by i/o device 
D) all of the mentioned

Question 19

The kernel data structures include

Accepted Answer

A) process table 
B) open file table 
C) close file table 
D) all of the mentioned 
A) process table 
B) open file table 
C) close file table 
D) all of the mentioned

Question 20

What is a dedicated device?

Accepted Answer

A) opposite to a sharable device 
B) same as a sharable device 
C) can be used concurrently by several processes 
D) none of the mentioned 
A) opposite to a sharable device 
B) same as a sharable device 
C) can be used concurrently by several processes 
D) none of the mentioned

Exam 21: Linux Kernel and System Structures

A block device transfers___________

Buffering is done to___________

The first linux kernel which supports the SMP hardware?

Which one of the following bootloader is not used by linux?

Which desktop environment is not used in any linux distribution?

A___________ is a full duplex connection between a device driver and a user level process.

Standard set of functions through which interacts with kernel is defined by

A keyboard is an example of a device that is accessed through a___________ interface.

Which one of the following linux file system does not support journaling feature?

Which one of the following is not shared by threads?

A process can be___________

If the number of cycles spent busy - waiting is not excessive, then___________

Which binary format is supported by linux?

Caching is___________ spooling.

Spooling___________

Caching___________

An asynchronous call___________

In polling___________

The kernel data structures include

What is a dedicated device?

Operating System

Operating System and Software

Operating System and Computer Basics: Formatting, Clipboard, Radio Buttons, Bankers Algorithm, and More

Computer Software and Operating System

Processor and Memory Fundamentals

Computer Architecture and Memory

Computer Science and Information Technology on Raid, Middleware, and CPU Scheduling

Understanding Process Scheduling in Operating Systems

Operating System and Process Management

Process Scheduling and Synchronization in Multi-Programming Environment

Process Management and Interprocess Communication in Unix

Semaphores, Spinlocks, and Monitors: Understanding Synchronization in Operating Systems

Concurrency Control and Deadlock Prevention in Operating Systems

Deadlock and Resource Allocation in Computer Systems

Memory Management and Swapping Techniques

Memory Management in Operating Systems

Understanding Paging and Memory Management in Operating Systems

Understanding Virtual Memory and Page Replacement Algorithms

Virtual Memory, Segmentation, and Disk Management

Disk Management and I/O Subsystem

Thread Management and Synchronization in Operating Systems

Operating System Concepts: System Calls, Threads, and Signals

Operating System and Thread Pool

Operating System and Memory Management

Process Control and Memory Management

Linux Kernel, File Systems, Bootloaders and Distributions

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