1. Operating System assumes responsibility, that of serving as a ____
-
Control program
Contribute program
Supplement program
2. A ____ controls the execution of user programs to prevent errors and improper use of the computer.
-
control program
contribute program
supplement program
3. What is the host controller?
-
controller built at the end of each disk
controller at the computer end of the bus
all of the mentioned
4. controller sends the command placed into it, via messages to the controller.
-
host, host
disk, disk
host, disk
5. Multiprogramming systems
-
Are easier to develop than single programming systems
Execute each job faster
Execute more jobs in the same time period
6. Breaking deadlock is possible by
-
Abort one or more processes to break the circular wait condition causing deadlock.
Preempting resources from one or more processors which are deadlocked.
Both are true
7. A hardware device that is capable of executing a sequence of instructions, is known as
-
CPU
ALU
CU
8. You need to create new volumes and format a new disk you just installed on your Windows 7 computer. Which tool should you use?
-
Format
Disk Utility
Disk Management
9. Which of the following is a valid permission in the Linux file system?
-
Write
Change
Modify
10. Processor which is complex and expensive to produce is
-
risc
epic
cisc
11. The architecture that uses a tighter coupling between the compiler and the processor is
-
epic
multi-core
risc
12. CISC stands for
-
complex information sensed cpu
complex instruction set computer
complex intelligence sensed cpu
13. Processor which is complex and expensive to produce
-
risc
epic
cisc
14. A parent process calling system call will be suspended until children processes terminate.
-
wait
fork
exit
15. Cascading termination refers to termination of all child processes before the parent terminates
-
normally
abnormally
normally or abnormally
16. In UNIX, each process is identified by its
-
process control block
device queue
process identifier
17. Which of the following two operations are provided by the IPC facility?
-
write & delete message
delete & receive message
send & delete message
18. Messages sent by a process
- have to be of a fixed size
have to be a variable size
can be fixed or variable sized
19. The link between two processes P and Q to send and receive messages is called
-
communication link
message-passing link
synchronization link
20. In the Zero capacity queue
-
the queue can store at least one message
the sender blocks until the receiver receives the message
the sender keeps sending and the messages don’t wait in the queue
21. 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
22. A situation where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which access takes place is called
-
data consistency
race condition
aging
23. Mutual exclusion implies that
-
if a process is executing in its critical section, then no other process must be executing in their critical sections
if a process is executing in its critical section, then other processes must be executing in their critical sections
if a process is executing in its critical section, then all the resources of the system must be blocked until it finishes execution
24. Bounded waiting implies that there exists a bound on the number of times a process is allowed to enter its critical section
-
after a process has made a request to enter its critical section and before the request is granted
when another process is in its critical section
before a process has made a request to enter its critical section
25. Which one is an example of connectionless protocols?
-
TCP
UDP
IPX/SPX
26. A common boundary between two computer systems is known as .................
-
Intradiction
Surface
Interface
27. Network interface card (NIC) is generally used for?
-
Printing
Deleting
Connectivity
28. Which folder contains the recently viewed web pages content?
-
Explorer
Temporary Internet Files
History
29. Binding of instructions and data to memory addresses can be done at
-
compile time
load time
execution time
30. The size of a process is limited to the size of
-
physical memory
external storage
secondary storage
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