Quiz Sail Part 3 Flashcards
A relative path name begins at the:
A: root
B: stem
C: current directory
D: leaf
C: current directory
A block device transfers:
A: block of bytes as a unit
B: bytes one by one
C: with unpredictable response times
D: none of the mentioned
A: block of bytes as a unit
The address of a page table in memory is pointed by:
A: page register
B: program counter
C: page table base register
D: stack pointer
C: page table base register
A character stream device transfers:
A: bytes one by one
B: none of the mentioned
C: with unpredictable response times
D: block of bytes as a unit
A: bytes one by one
The heads of the magnetic disk are attached to a –?– that moves all the heads as a unit.
A: disk arm
B: spindle
C: none of the mentioned
D: track
A: disk arm
What are zombie systems?
A: These systems are previously compromised, independent systems
B: None of the mentioned
C: They are network of known hacking group
D: Are specific system which are designed to attack by manufacturer
A: These systems are previously compromised, independent systems
If the thread pool contains no available thread:
A: the server goes to another thread pool
B: the server runs a new process
C: the server waits until one becomes free
D: the server demands for a new pool creation
C: the server waits until one becomes free
Managing a disk directory is a key function of the:
A: command processor
B: boot routine
C: file system
D: IOCS
C: file system
A deadlock free solution to the dining philosophers problem:
A: none of the mentioned
B: does not necessarily eliminate the possibility of starvation
C: eliminates any possibility of any kind of problem further
D: necessarily eliminates the possibility of starvation
B: does not necessarily eliminate the possibility of starvation
In the two level directory structure:
A: each user has his/her own user file directory
B: none of the mentioned
C: the system doesn’t its own master file directory
D: all of the mentioned
A: each user has his/her own user file directory
Temporary storage called –?– can be used to adjust for the speed disparity between devices.
A: a control unit
B: a channel
C: a buffer
D: an interface
C: a buffer
The run time mapping from virtual to physical addresses is done by a hardware device called the:
A: Virtual to physical mapper
B: Memory management unit
C: None of the mentioned
D: Memory mapping unit
B: Memory management unit
A –?– is a set of wires and a rigidly defined protocol that specifies a set of messages that can be sent on the wires.
A: node
B: bus
C: port
D: none of the mentioned
B: bus
What is Trojan horse?
A: It is a user which steals valuable information
B: It is a rogue program which tricks users
C: It’s a brute force attack algorithm
D: It is a useful way to encrypt password
B: It is a rogue program which tricks users
The only state transition that is initiated by the user process itself is:
A: wakeup
B: block
C: none of the mentioned
D: dispatch
B: block
A machine in Network file system (NFS) can be:
A: neither client nor server
B: both client and server
C: client
D: server
B: both client and server
Multithreading an interactive program will increase responsiveness to the user by:
A: none of the mentioned
B: asking the user to decide the order of multithreading
C: waiting for one part to finish before the other begins
D: continuing to run even if a part of it is blocked
D: continuing to run even if a part of it is blocked
When several processes access the same data concurrently and the outcome of the execution depends on the particular order in which the access takes place, is called:
A: race condition
B: essential condition
C: dynamic condition
D: critical condition
A: race condition
For processes to request access to file contents, they need to:
A: they need to run a seperate program
B: none of the mentioned
C: implement the open and close system calls
D: they need special interrupts
C: implement the open and close system calls
Operating system routines that directly support application programs as they run are generally:
A: dynamic
B: transient
C: resilient
D: resident
D: resident
When the process issues an I/O request:
A: It is placed in the ready queue
B: It is placed in an I/O queue
C: It is placed in a waiting queue
D: It is placed in the Job queue
B: It is placed in an I/O queue
Message passing system allows processes to:
A: name the recipient or sender of the message
B: communicate with one another by resorting to shared data
C: share data
D: communicate with one another without resorting to shared data
D: communicate with one another without resorting to shared data
A mutex:
A: None of the mentioned
B: must be accessed from only one process
C: can be accessed from multiple processes
D: is a binary mutex
B: must be accessed from only one process
The CPU hardware has a wire called –?– that the CPU senses after executing every instruction.
A: interrupt bus
B: interrupt sense line
C: interrupt receive line
D: interrupt request line
D: interrupt request line