Kernel Programming - Solaris MCQs (Chapterwise Multiple Choice Questions)

What is the maximum number of registers available to a function at any time?

2

32

64

128

Answer & Explanation

Correct Answer: 32

Note: This Question is unanswered, help us to find answer for this one

Which of the following locks is used to serialize reads and writes on a vnode?

The global VFS lock.

The locks on the page structures.

The VOP_RWLOCK.

The locks on the buffer structures.

Answer & Explanation

Correct Answer: The VOP_RWLOCK.

Note: This Question is unanswered, help us to find answer for this one

What do the following mdb commands do?
::allocdby
::freedby

They are used to print the log of transactions on a particular memory location.

They are used to print the log of transactions by a particular thread.

They are used to print the slab cache that refers to the particular address.

They are used to print the arenas that refer to the particular address.

Answer & Explanation

Correct Answer:

They are used to print the log of transactions by a particular thread.

Note: This Question is unanswered, help us to find answer for this one

Which of the following firmware commands causes a kernel core file to be dumped to the dump device?

$sync

sync

dump

$dump

Answer & Explanation

Correct Answer: sync

Note: This Question is unanswered, help us to find answer for this one

Following a panic and a core dump, what is done to recreate the core files for debugging?

Use dumpadm to create the core files.

Use savecore to create the core files.

Nothing needs to be done; the os guarantees that the core files are always saved.

Use dd to move the core files from the dump device to the filesystem.

Answer & Explanation

Correct Answer: Use savecore to create the core files.

Note: This Question is unanswered, help us to find answer for this one

Which of the following caches doesnot change its size dynamically on older solaris systems?

Page Cache

Vnode Cache

Inode Cache

Buffer Cache

Answer & Explanation

Correct Answer: Buffer Cache

Note: This Question is unanswered, help us to find answer for this one

Can the solaris semaphores be used in the interrupt context?

Yes

No

Answer & Explanation

Correct Answer: Yes

Note: This Question is unanswered, help us to find answer for this one

Which of the following has the lowest scheduling latency?

User thread.

Kernel thread.

User Process.

LWP.

Answer & Explanation

Correct Answer: Kernel thread.

Note: This Question is unanswered, help us to find answer for this one

Which of the following interfaces are invoked by the OS to flush all data belonging to a filesystem to a disk?

VOP_FSYNC

VFS_SYNC

VOP_PUTPAGE

VOP_WRITE

Answer & Explanation

Correct Answer: VFS_SYNC

Note: This Question is unanswered, help us to find answer for this one

Which of the following structures keeps track of the positional offset within the file where the next IO is to be performed?

struct file

struct vnode

struct inode

struct proc

Answer & Explanation

Correct Answer: struct file

Note: This Question is unanswered, help us to find answer for this one

Kernel Programming - Solaris Quick Quiz

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Kernel Programming - Solaris MCQ

Kernel Programming - Solaris Quick Quiz

What is the maximum number of registers available to a function at any time?

Which of the following locks is used to serialize reads and writes on a vnode?

What do the following mdb commands do?::allocdby::freedby

Which of the following firmware commands causes a kernel core file to be dumped to the dump device?

Following a panic and a core dump, what is done to recreate the core files for debugging?

Which of the following caches doesnot change its size dynamically on older solaris systems?

Can the solaris semaphores be used in the interrupt context?

Which of the following has the lowest scheduling latency?

Which of the following interfaces are invoked by the OS to flush all data belonging to a filesystem to a disk?

Which of the following structures keeps track of the positional offset within the file where the next IO is to be performed?

What do the following mdb commands do?
::allocdby
::freedby