QUIZ ON : INTERNET OF THINGS AND ITS APPLICATIONS - THINGS AND CONNECTIONS

THINGS AND CONNECTIONS

00:00:00

Consider the set S = {1, ω, ω2}, where ω and ω2 are cube roots of unity. If * denotes the multiplication operation, the structure (S, *) forms

Option A. A group
Option B. A ring
Option C. An integral domain
Option D. A field
True Answer A

Explanation :

 A group should satisfy the relation
(i) Closure
(ii) Inverse
(iii) Identity
(iv) Associative
in 
We can say
 all are elements of group than it is closure
Hence, we think about inverse, then this should satisfy

where e is identity element means  G have identity element 1 means
 identities
Hence it should be inverse
means 
means b is the inverse element a, b, e 64
here 1 * 1 = 1,  inverse
So, it also hold Associative for this

means  Associative
means  is a group.

Consider the set S = {1, ω, ω2}, where ω and ω2 are cube roots of unity. If * denotes the multiplication operation, the structure (S, *) forms

Question No# : 01 out of 20



Analog computer is a mixture of hybrid and digital computer.

Option A. TRUE
Option B. FALSE
Option C.
Option D.
True Answer B

Explanation :
Hybrid computer is a mixture of Analog and digital computer.

Analog computer is a mixture of hybrid and digital computer.

Question No# : 02 out of 20



Which class of IP address has the most host addresses available by default?

Option A. A
Option B. B
Option C. C
Option D. None of the above
True Answer A

Explanation :
Class A addressing provides 24 bits for host addressing.

Which class of IP address has the most host addresses available by default?

Question No# : 03 out of 20



A world wide web contains web pages

Option A. residing in many computers
Option B. created using HTML
Option C. with links to other web pages
Option D. residing in many computers linked together using HTML
True Answer B

Explanation :

A world wide web contains web pages

Question No# : 04 out of 20



The shortcut key for the replace command is Ctrl + H.

Option A. TRUE
Option B. FALSE
Option C.
Option D.
True Answer A

Explanation :

The shortcut key for the replace command is Ctrl + H.

Question No# : 05 out of 20



Fetch_And_Add(X, i) is an atomic Read-Modify-Write instruction that reads the value of memory location X, increments it by the value i, and returns the old value of X. It is used in the pseudocode shown below to implement a busy-wait lock. L is an unsigned integer shared variable initialized to 0. The value of 0 corresponds to lock being available, while any non-zero value corresponds to the lock being not available.

AcquireLock (L) {
while (Fetch_And_Add (L,1))
L = 1;
}
ReleaseLock (L) {
L = 0;
}
This implementation

Option A. fails as L can overflow
Option B. fails as L can take on a non-zero value when the lock is actually available
Option C. works correctly but may starve some processes
Option D. works correctly without starvation
True Answer B

Explanation :

 1) Acquire lock (L) {
2) While (Fetch_And_Add (L,1))
3) L = 1
}
4) Release Lock (L) {
5) L = 0;
6) }
Let P and Q be two concurrent processes in the system currently executing as follows
P executes 1, 2, 3 then Q executes 1 and 2 then P executes 4, 5, 6 then L = 0 now
Q executes 3 by which L will be set to 1 and thereafter no process can set
L to zero, by which all the processes could starve.

Fetch_And_Add(X, i) is an atomic Read-Modify-Write instruction that reads the value of memory location X, increments it by the value i, and returns the old value of X. It is used in the pseudocode shown below to implement a busy-wait lock. L is an unsigned integer shared variable initialized to 0. The value of 0 corresponds to lock being available, while any non-zero value corresponds to the lock being not available.

AcquireLock (L) {
while (Fetch_And_Add (L,1))
L = 1;
}
ReleaseLock (L) {
L = 0;
}
This implementation

Question No# : 06 out of 20



IP only allows fixed packet sizes.

Option A. TRUE
Option B. FALSE
Option C.
Option D.
True Answer A

Explanation :

IP only allows fixed packet sizes.

Question No# : 07 out of 20

Firewall is a type of

Option A. Output device
Option B. Virus
Option C. Threat
Option D. None of These
True Answer D

Explanation :

Firewall is a type of

Question No# : 08 out of 20



ARPANET was the world first operational packet switched network.

Option A. TRUE
Option B. FALSE
Option C.
Option D.
True Answer A

Explanation :

ARPANET was the world first operational packet switched network.

Question No# : 09 out of 20



Give the meaning of the following proverb: A bird in hand is worth two in a bush

Option A. To catch two birds with your hands
Option B. To be dissatisfied with what you have
Option C. It is better to be satisfied with what you have than to try to get what is not yours
Option D. To trap birds in bushes
True Answer C

Explanation :
Since, a proverb is a short, well-known pithy saying, stating a general truth or piece of advice. So, ‘A bird in hand is worth two in a bush’ means It is better to be satisfied with what you have than to try to get what is not yours.

Give the meaning of the following proverb: A bird in hand is worth two in a bush

Question No# : 10 out of 20

A Java API is a collection of prewritten packages, classes, and interfaces with their respective methods, fields and constructors

Option A. TRUE
Option B. FALSE
Option C.
Option D.
True Answer A

Explanation :

A Java API is a collection of prewritten packages, classes, and interfaces with their respective methods, fields and constructors

Question No# : 11 out of 20

PowerPoint presentations are widely used as

Option A. note outlines for teachers
Option B. project presentations by students
Option C. communication of planning
Option D. All of above
True Answer D

Explanation :

PowerPoint presentations are widely used as

Question No# : 12 out of 20



The surface area of a cube is 96 cm2. What is the length of its side?

Option A. 4 cm
Option B. 5 cm
Option C. 6 cm
Option D. 8 cm
True Answer A

Explanation :

We have,
Surface area of a cube = UP_TET_2011_paper_II_files\image003.png
Therefore,

UP_TET_2011_paper_II_files\image004.png

The surface area of a cube is 96 cm2. What is the length of its side?

Question No# : 13 out of 20



Which shortcut key will you use to start the Spell Checker?

Option A. F5
Option B. F6
Option C. F7
Option D. F8
True Answer C

Explanation :

Which shortcut key will you use to start the Spell Checker?

Question No# : 14 out of 20

Newton-Raphson method is used to compute a root of the equation x2 − 13 = 0 with 3.5 as the initial value. The approximation after one iteration is

Option A. 3.575
Option B. 4.21
Option C. 3.97
Option D. 3.607
True Answer D

Explanation :

 Since in Tayor's series

Since h is small, so we neglect higher power of h.

So as first iteration

Since 

Newton-Raphson method is used to compute a root of the equation x2 − 13 = 0 with 3.5 as the initial value. The approximation after one iteration is

Question No# : 15 out of 20



Time management is primarily creating an environment conducive to effectiveness

Option A. TRUE
Option B. FALSE
Option C.
Option D.
True Answer A

Explanation :

Time management is primarily creating an environment conducive to effectiveness

Question No# : 16 out of 20

What was the first network that planted the seeds of internet?

Option A. ARPANET
Option B. USENET
Option C. INFRARED
Option D. DATANET
True Answer A

Explanation :

What was the first network that planted the seeds of internet?

Question No# : 17 out of 20



Which of the following pairs have DIFFERENT expressive power?

Option A. Deterministic finite automata (DFA) and Non-deterministic finite automata (NFA)
Option B. Deterministic push down automata (DPDA) and Non-deterministic push down automata (NPDA)
Option C. Deterministic single-tape Turing machine and Non-deterministic single-tape Turing machine
Option D. Single-tape Turing machine and multi-tape Turing machine
True Answer B

Explanation :

NPDA is more powerful than DPDA.

Hence, Answer is B.

Which of the following pairs have DIFFERENT expressive power?

Question No# : 18 out of 20

An electronic path, that sends signals from one part of computer to another is?

Option A. Logic gate
Option B. Bus
Option C. Modem
Option D. Serial port
True Answer B

Explanation :

An electronic path, that sends signals from one part of computer to another is?

Question No# : 19 out of 20



MS-EXCEL can be used to automate

Option A. Financial statements, Business forecasting
Option B. Transaction registers, inventory control
Option C. Accounts receivable, accounts payable
Option D. Any of the above
True Answer D

Explanation :

MS-EXCEL can be used to automate

Question No# : 20 out of 20