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1. How long is an IPv6 address?
A.32 bits
B.128 bytes
C.64 bits
D.128 bits
Correct Answer is D
2. What flavor of Network
Address Translation can be used to have one IP address allow many users to connect to the global Internet?
A.NAT
B.Static
C.Dynamic
D.PAT
Correct Answer is D
3. What command is used to
create a backup configuration?
A.copy running backup
B.copy running-config
startup-config
C.config mem
D.wr mem
Correct Answer is B
4. You have 10 users
plugged into a hub running 10Mbps half-duplex. There is a server connected to
the switch running 10Mbps half-duplex as well. How much bandwidth does each
host have to the server?
A.100 kbps
B.1 Mbps
C.2 Mbps
D.10 Mbps
Correct Answer is D
5. Which protocol does
DHCP use at the Transport layer?
A.IP
B.TCP
C.UDP
D.ARP
Correct Answer is C
6. Which of the following
commands will display the current IP addressing and the layer 1 and 2 status of
an interface?
1. show version
2. show protocols
3. show interfaces
4. show controllers
5. show ip interface
A.1, 2 and 4
B.2, 3 and 5
C.3 and 4 only
D.None of the above
Correct Answer is B
7.What is the frequency
range of the IEEE 802.11a standard?
A.2.4Gbps
B.5Gbps
C.2.4GHz
D.5GHz
Correct Answer is D
8. The DBMS acts as an
interface between what two components of an enterprise-class database system?
A.Database application and
the database
B.Data and the database
C.The user and the
database application
D.Database application and
SQL
Correct Answer is A
9. An application where
only one user accesses the database at a given time is an example of a(n)
________ .
A.single-user database
application
B.multiuser database
application
C.e-commerce database
application
D.data mining database
application
Correct Answer is A
10. If the disk head is
located initially at 32, find the number of disk moves required with FCFS if
the disk queue of I/O blocks requests are 98, 37, 14, 124, 65, 67.
A. 239
B. 310
C. 321
D. 325
Correct Answer is C
11. Which of the following
memory allocation scheme suffers from external fragmentation ?
A. Segmentation
B. Pure demand paging
C. Swapping
D. Paging
Correct Answer is A
12. Consider a system
having m resources of the same type. These resources are shared by 3 processes
A, B and C which have peak demands of 3, 4 and 6 respectively. For what value
of m deadlock will not occur ?
A. 7
B. 9
C. 10
D. 13
Correct Answer is D
13. Pre-emptive scheduling is the strategy of temporarily suspending
a running process
A. before the CPU time slice expires
B. to allow starving processes to run
C. when it requests I/O
D. to avoid collision
Correct Answer is A
14. Resources are allocated to the process on non-sharable basis is
A. mutual exclusion
B. hold and wait
C. no pre-emption
D. circular wait
Correct Answer is A
15. In round robin CPU scheduling as time quantum is increased the
average turn around time
A. increases
B. decreases
C. remains constant
D. varies irregularly
Correct Answer is D
16. Pool based allocation of memory achieves better usage. Memory can
be preempted from inactive programs and used to accommodate active programs.
This is called
A. Preemption
B. Swapping
C. Spooling
D. Scheduling
Correct Answer is B
17. Which of these is an example of a virtual resource?
A. Print server
B. Virtual machine
C. Virtual memory
D. All of the above
Correct Answer is D
18. Which concept explains the working of an Operating System?
A. It is event driven
B. It is object oriented
C. It is procedure based system software
D. It is a collection of procedures that interact with each other
Correct Answer is A
19. Which of these is/are the desirable features of an Operating
system
A. Extensible
B. Portable
C. Reliable
D. All of the above
Correct Answer is D
20. Blocking and Caching are the terms associated with which
Operating system functions respectively
A. Memory management and Disk Scheduling
B. IOCS and Disk Scheduling
C. IOCS and Memory management
D. Process management and IOCS
Correct Answer is B
21. Which of these is not a term describing the collection of
Operating Programs
A. Monitor
B. Kernel
C. Supervisor
D. Server
Correct Answer is D
22. Transparency is a desirable feature of which type of Operating
system-
A. Batch Processing
B. Real time
C. Distributed
D. Time sharing
Correct Answer is C
23. Which operating system implementation has to focus on the issue
of Good response time
A. Batch Processing
B. Multiprogramming
C. Distributed
D. Time sharing
Correct Answer is D
24. Program Priorities, Preemption are the key concepts of
A. Batch Processing
B. Real time
C. multiprogramming
D. Time sharing
Correct Answer is C
25. Which operating system implementation has to focus on the issue
of resource sharing?
A. Batch Processing
B. Multiprogramming
C. Distributed
D. Time sharing
Correct Answer is C
26. This OS interleaves execution of processes in an application
program to meet its deadline
A. Batch Processing
B. Real time
C. multiprogramming
D. Time sharing
Correct Answer is B
27. What in multiprogramming OS provides a foolproof method of
implementing memory protection to avoid program interference?
A. Direct Memory Access
B. Privileged mode
C. Memory Protection
D. Both 2 and 3
Correct Answer is D
28. What are the functions of multiprogramming OS?
A. Scheduling
B. Memory Management
C. I/O management
D. All of above
Correct Answer is D
29. Applications like Banking and reservations require which type of
OS?
A. Real Time
B. Hard Real Time
C. Soft Real Time
D. None of the above
Correct Answer is C
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