1
In TCP/IP Reference model, the job of _______ layer is to permit hosts to inject packets into any network and travel them independently to the destination.
Answer: Option [A]
Questions
2
If there are N people in the world and are using secret key encryption/decryption for privacy purpose, then number of secret keys required will be :
Answer: Option [B]
3
Optical fiber uses reflection to guide light through a channel, in which angle of incidence is ________ the critical angle.
Answer: Option [D]
4
The number of strings of length 4 that are generated by the regular expression (0|∈)1+2* (3|∈), where | is an alternation character, {+, *} are quantification characters, and ∈ is the null string, is :
Answer: Option [A]
5
The content of the accumulator after the execution of the following 8085 assembly language program, is :
MVI A, 42H
MVI B, 05H
UGC: ADD B
DCR B
JNZ UGC
ADI 25H
HLT
Answer: Option [B]
6
In _______, the bodies of the two loops are merged together to form a single loop provided that they do not make any references to each other.
Answer: Option [B]
7
Which of the following is not typically a benefit of dynamic linking ?
I. Reduction in overall program execution time.
II. Reduction in overall space consumption in memory.
III. Reduction in overall space consumption on disk.
IV. Reduction in the cost of software updates.
Answer: Option [B]
9
Consider the reference string
012301401234
If FIFO page replacement algorithm is used, then the number of page faults with three page frames and four page frames are _______ and ______ respectively.
Answer: Option [B]
10
If the Disk head is located initially at track 32, find the number of disk moves required with FCFS scheduling criteria if the disk queue of I/O blocks requests are :
98, 37, 14, 124, 65, 67
Answer: Option [B]
11
In UNIX, _________ creates three subdirectories : ‘PIS’ and two subdirectories ‘progs’ and ‘data’ from just created subdirectory ‘PIS’.
Answer: Option [A]
12
A scheduling Algorithm assigns priority proportional to the waiting time of a process. Every process starts with priority zero (lowest priority). The scheduler reevaluates the process priority for every ‘T’ time units and decides next process to be scheduled. If the process have no I/O operations and all arrive at time zero, then the scheduler implements _________ criteria.
Answer: Option [B]
13
If S1 is total number of modules defined in the program architecture, S3 is the number of modules whose correct function depends on prior processing then the number of modules not dependent on prior processing is :
Answer: Option [D]
14
The ________ model is preferred for software development when the requirements are not clear.
Answer: Option [A]
15
Which of the following is not included in waterfall model ?
Answer: Option [B]
16
The cyclomatic complexity of a flow graph V(G), in terms of predicate nodes is :
Answer: Option [B]
17
The extent to which a software tolerates the unexpected problems, is termed as :
Answer: Option [B]
18
An attacker sits between customer and Banker, and captures the information from the customer and retransmits to the banker by altering the information. This attack is called as ______.
Answer: Option [B]
19
A multiplexer combines four 100-Kbps channels using a time slot of 2 bits. What is the bit rate ?
Answer: Option [B]
20
Pipelining improves performance by :
Answer: Option [B]
