67.

68.

69.

70.

71.

72,

73.

74,

Consider the following page reference string :
12342156212376321236

For FIFO page replacement algorithm with 4 frames, the number of page fault is :
കു 15 (8) 15 © 14 ‏رم‎ 1

The time taken to move the disk arm to the desired cylinder is called :
(ಹಿ) Positioning time (8) Random access time
(C) Seek time (D) Rotational latency

Consider a disk queue with requests for I/O to blocks on cylinders :

98, 183, 37, 122, 14, 124, 65, 67.

Considering FCFS scheduling, the total number of head movements is, if the disk head is
initially at 53 :

(A) 600 (8) 620 ©) 630 (D) 640

The segment of code in which the process may change common variables, update tables,
write into files is known as :
(ಹಿ) Critical section (8) Program (¢) Synchronising (D) Starvation

ADSL stands for :

(ക) Asymmetric Digital Subscriber Line
(B) Asynchronous Digital Subscriber Line
(ಲ) Associated Digital Subscriber Link
(D) Asynchronous Data Sending Line

TCP/IP model does not have layer, but OSI model have this layer.
(A) Session Layer (8) Transport Layer
(C) Application Layer (D) None of the above

Automatic repeat request error management mechanism is provided by :
(ക) Media access control sub layer

(B) Logical link control sub layer

(C) Network interface control sub layer

(D) None of the mentioned

The resources needed for communication between end systems are reserved for the duration
of session between end systems in :

(ക) Packet switching (B) Circuit switching
(C) Line switching (D) Frequency switching

03/2019 10 A