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Operating System
1081
Computer Science Fundamentals
998
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OS Multimedia Systems
If several requests have different deadlines that are relatively close together, then using the SCAN – EDF algorithm ___________
the SCAN ordering will service the requests in that batch
the EDF ordering will service the requests in that batch
the FCFS ordering will service the requests in that batch
none of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
Allocated size of a file comes under?
basic information
address information
access control information
usage information
Allocated size comes under the address information of a file. Address information consists of volume, starting address, size used and size allocated.
Author:
rikazzz
Comment
OS Distributed Communication
Cascading termination refers to termination of all child processes before the parent terminates ______
Normally
Abnormally
Normally or abnormally
None of the mentioned
Author:
rikazzz
Comment
OS Distributed Communication
To enable a process to wait within the monitor __________
a condition variable must be declared as condition
condition variables must be used as boolean objects
semaphore must be used
all of the mentioned
Author:
rikazzz
Comment
OS I/O Systems
The kernel data structures include ____________
process table
open file table
close file table
all of the mentioned
Author:
rikazzz
Comment
OS Security
What is known as masquerading?
When one participant in communication pretends to be someone else
When attacker modifies data in communication
When attack is of fraudulent repeat of a valid data
When attack gains access to remote systems
Author:
rikazzz
Comment
OS The Linux System
Which one of the following is not a valid state of a thread?
running
parsing
ready
blocked
Author:
rikazzz
Comment
Computer Science Fundamentals
Which of the following circuit is used as a special signal to demultiplex the address bus and data bus?
Priority Encoder
Decoder
Address Latch Enable
Demultiplexer
Address Latch Enable is a positive pulse and it is generated whenever the microprocessor starts an operation to latch the lower order address lines (AD7 to AD0).
Author:
rikazzz
Comment
OS Distributed Communication
The Zero Capacity queue __________
is referred to as a message system with buffering
is referred to as a message system with no buffering
is referred to as a link
none of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
Plain text is the data after encryption is performed.
True
False
The statement is false. Cipher is the algorithm used in encryption. Ciphertext is the data after encryption is performed.
Author:
rikazzz
Comment
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