Computer Science Engineering (CSE)
DBMS is a collection of ????.. that enables user to create and maintain a database.- a)Keys
- b)Translators
- c)Program
- d)Language Activity
Correct answer is option 'C'. Can you explain this answer?
DBMS is a collection of ????.. that enables user to create and maintain a database.
a)
Keys
b)
Translators
c)
Program
d)
Language Activity
Gate Gurus answered • 9 hours agoDBMS (Database Management System) Diploma Question Paper
Nisi Gupta asked • 1 hour agoConsider six memory partitions of size 200 KB, 400 KB, 600 KB, 500 KB, 300 KB, and 250 KB, where KB refers to kilobyte. These partitions need to be allotted to four processes of sizes 357 KB, 210 KB, 468 KB and 491 KB in that order. If the best fit algorithm is used, which partitions are NOT allotted to any process?
Correct answer is between '200 KB,300 KB'. Can you explain this answer?
Consider six memory partitions of size 200 KB, 400 KB, 600 KB, 500 KB, 300 KB, and 250 KB, where KB refers to kilobyte. These partitions need to be allotted to four processes of sizes 357 KB, 210 KB, 468 KB and 491 KB in that order. If the best fit algorithm is used, which partitions are NOT allotted to any process?
Jnani Kurmadasu asked • 2 hours agoQ. 11 – Q. 35 carry one mark each.Consider the statement
“Not all that glitters is gold”
Predicate glitters (x) is true if x glitters and predicate gold(x) is true if x is gold. Which one of
the following logical formulae represents the above statement?- a)
- b)
- c)
- d)
Correct answer is option 'D'. Can you explain this answer?
Q. 11 – Q. 35 carry one mark each.
Consider the statement
“Not all that glitters is gold”
Predicate glitters (x) is true if x glitters and predicate gold(x) is true if x is gold. Which one of
the following logical formulae represents the above statement?
a)
b)
c)
d)
Damayanti Daule asked • 7 hours agoAn operating system uses the Banker’s algorithm for deadlock avoidance when managing the
allocation of three resource types X, Y, and Z to three processes P0, P1, and P2. The table given
below presents the current system state. Here, the Allocation matrix shows the current number of
resources of each type allocated to each process and the Max matrix shows the maximum number
of resources of each type required by each process during its execution. 
There are 3 units of type X, 2 units of type Y and 2 units of type Z still available. The system is
currently in a safe state. Consider the following independent requests for additional resources in the
current state:
REQ1: P0 requests 0 units of X, 0 units of Y and 2 units of Z
REQ2: P1 requests 2 units of X, 0 units of Y and 0 units of Z
Which one of the following is TRUE?... more
An operating system uses the Banker’s algorithm for deadlock avoidance when managing the
allocation of three resource types X, Y, and Z to three processes P0, P1, and P2. The table given
below presents the current system state. Here, the Allocation matrix shows the current number of
resources of each type allocated to each process and the Max matrix shows the maximum number
of resources of each type required by each process during its execution.
allocation of three resource types X, Y, and Z to three processes P0, P1, and P2. The table given
below presents the current system state. Here, the Allocation matrix shows the current number of
resources of each type allocated to each process and the Max matrix shows the maximum number
of resources of each type required by each process during its execution.
There are 3 units of type X, 2 units of type Y and 2 units of type Z still available. The system is
currently in a safe state. Consider the following independent requests for additional resources in the
current state:
REQ1: P0 requests 0 units of X, 0 units of Y and 2 units of Z
REQ2: P1 requests 2 units of X, 0 units of Y and 0 units of Z
Which one of the following is TRUE?
currently in a safe state. Consider the following independent requests for additional resources in the
current state:
REQ1: P0 requests 0 units of X, 0 units of Y and 2 units of Z
REQ2: P1 requests 2 units of X, 0 units of Y and 0 units of Z
Which one of the following is TRUE?
Adepu Veena asked • 8 hours agoThe temporal aspect of the locality of reference means- a)That the recently executed instruction wont be executed soon
- b)That the recently executed instruction is temporarily not referenced
- c)That the recently executed instruction will be executed soon again
- d)None of the mentioned
Correct answer is option 'C'. Can you explain this answer?
The temporal aspect of the locality of reference means
a)
That the recently executed instruction wont be executed soon
b)
That the recently executed instruction is temporarily not referenced
c)
That the recently executed instruction will be executed soon again
d)
None of the mentioned
(ii), (Q) 
(iii), (R) 
(i)
(iii), (Q) 
(i), (R) 
(ii)
(ii), (Q)
(i), (R)
(iii)
( i) ,(Q) 
(ii) ,(R) 
(iii)
Ambati Rajendra asked • 17 hours agoHow is a privilege exception dealt with?- a)The program is alted and the system switches into supervisor mode and restarts the program execution
- b)The Program is stopped and removed from the queue
- c)The system switches the mode and starts the execution of a new process
- d)The system switches mode and runs the debugger
Correct answer is option 'A'. Can you explain this answer?
How is a privilege exception dealt with?
a)
The program is alted and the system switches into supervisor mode and restarts the program execution
b)
The Program is stopped and removed from the queue
c)
The system switches the mode and starts the execution of a new process
d)
The system switches mode and runs the debugger
G Knowledge Ak asked • 18 hours agoIn case Of timestamp ordering R-timestamp (Q) denotes- a)The largest timestamp of any transaction that execute read (Q) successfully.
- b)The average timestamp of any transaction that execute read (Q) successfully.
- c)The average timestamp of any transaction that execute read (Q) unsuccessfully.
- d)The smallest timestamp of any transaction that execute read (Q) successfully.
Correct answer is option 'A'. Can you explain this answer?
In case Of timestamp ordering R-timestamp (Q) denotes
a)
The largest timestamp of any transaction that execute read (Q) successfully.
b)
The average timestamp of any transaction that execute read (Q) successfully.
c)
The average timestamp of any transaction that execute read (Q) unsuccessfully.
d)
The smallest timestamp of any transaction that execute read (Q) successfully.
Kyntz Nongrum asked • 22 hours agoThe post order traversal of a binary search tree is given by 25, 30, 20, 45, 60, 50, 40, 35. The pre order traversal of this tree will be given by:- a)20, 25, 30, 35, 40, 45, 50, 60
- b)35, 30, 20, 25, 40, 50, 45, 60
- c)25, 35, 30, 40, 20, 50, 60, 45
- d)35, 20, 30, 25, 40, 50, 45, 60
Correct answer is option 'D'. Can you explain this answer?
The post order traversal of a binary search tree is given by 25, 30, 20, 45, 60, 50, 40, 35. The pre order traversal of this tree will be given by:
a)
20, 25, 30, 35, 40, 45, 50, 60
b)
35, 30, 20, 25, 40, 50, 45, 60
c)
25, 35, 30, 40, 20, 50, 60, 45
d)
35, 20, 30, 25, 40, 50, 45, 60
Virat Kohli asked • 22 hours agoWhich of the following is true about merge sort?- a)Merge Sort works better than quick sort if data is accessed from slow sequential memory.
- b)Merge Sort is stable sort by nature
- c)Merge sort outperforms heap sort in most of the practical situations.
- d)All of the above.
Correct answer is option 'D'. Can you explain this answer?
Which of the following is true about merge sort?
a)
Merge Sort works better than quick sort if data is accessed from slow sequential memory.
b)
Merge Sort is stable sort by nature
c)
Merge sort outperforms heap sort in most of the practical situations.
d)
All of the above.
Ayushi Sharma asked • 22 hours agoGiven the following expression grammar:
E -> E * F | F + E | F
F -> F - F | id
which of the following is true?- a)* has higher precedence than +
- b)– has higher precedence than *
- c)+ and — have same precedence
- d)+ has higher precedence than *
Correct answer is option 'B'. Can you explain this answer?
Given the following expression grammar:
E -> E * F | F + E | F
F -> F - F | id
which of the following is true?
E -> E * F | F + E | F
F -> F - F | id
which of the following is true?
a)
* has higher precedence than +
b)
– has higher precedence than *
c)
+ and — have same precedence
d)
+ has higher precedence than *
Javed Ahmad asked • yesterdayWhich of the following is not true about comparison based sorting algorithms?- a)The minimum possible time complexity of a comparison based sorting algorithm is O(nLogn) for a random input array
- b)Any comparison based sorting algorithm can be made stable by using position as a criteria when two elements are compared
- c)Counting Sort is not a comparison based sorting algortihm
- d)Heap Sort is not a comparison based sorting algorithm
Correct answer is option 'D'. Can you explain this answer?
Which of the following is not true about comparison based sorting algorithms?
a)
The minimum possible time complexity of a comparison based sorting algorithm is O(nLogn) for a random input array
b)
Any comparison based sorting algorithm can be made stable by using position as a criteria when two elements are compared
c)
Counting Sort is not a comparison based sorting algortihm
d)
Heap Sort is not a comparison based sorting algorithm
Apurva Patel asked • yesterdayMaximum Subarray Sum problem is to find the subarray with maximum sum. For example, given an array {12, -13, -5, 25, -20, 30, 10}, the maximum subarray sum is 45. The naive solution for this problem is to calculate sum of all subarrays starting with every element and return the maximum of all. We can solve this using Divide and Conquer, what will be the worst case time complexity using Divide and Conquer.- a)O(n)
- b)O(nLogn)
- c)O(Logn)
- d)O(n^2)
Correct answer is option 'B'. Can you explain this answer?
Maximum Subarray Sum problem is to find the subarray with maximum sum. For example, given an array {12, -13, -5, 25, -20, 30, 10}, the maximum subarray sum is 45. The naive solution for this problem is to calculate sum of all subarrays starting with every element and return the maximum of all. We can solve this using Divide and Conquer, what will be the worst case time complexity using Divide and Conquer.
a)
O(n)
b)
O(nLogn)
c)
O(Logn)
d)
O(n^2)
Rasazna Kls asked • yesterdayA priority queue can efficiently implemented using which of the following data structures? Assume that the number of insert and peek (operation to see the current highest priority item) and extraction (remove the highest priority item) operations are almost same.- a)Array
- b)Linked List
- c)Heap Data Structures like Binary Heap, Fibonacci Heap
- d)None of the above
Correct answer is option 'C'. Can you explain this answer?
A priority queue can efficiently implemented using which of the following data structures? Assume that the number of insert and peek (operation to see the current highest priority item) and extraction (remove the highest priority item) operations are almost same.
a)
Array
b)
Linked List
c)
Heap Data Structures like Binary Heap, Fibonacci Heap
d)
None of the above
Bolly Life asked • yesterdayThe following is the AB flip flop:
What are values of A, B when change in the flip flop state is from 0 to 1 ? Note: x in the options below represents that it can have any value out of 0 and 1.- a)1, x
- b)0, x
- c)1, 0
- d)x, 1
Correct answer is option 'B'. Can you explain this answer?
The following is the AB flip flop:
What are values of A, B when change in the flip flop state is from 0 to 1 ?
Note: x in the options below represents that it can have any value out of 0 and 1.
a)
1, x
b)
0, x
c)
1, 0
d)
x, 1
Susan Oomen asked • yesterdayTwo processors A and B have clock frequencies of 700 Mhz and 900 Mhz respectively. Suppose A can execute an instruction with an averageof 3 steps and B can execute with an average of 5 steps.For the execution of the same instruction which processor is faster- a)A
- b)B
- c)Both take the same time
- d)Insufficient information
Correct answer is option 'A'. Can you explain this answer?
Two processors A and B have clock frequencies of 700 Mhz and 900 Mhz respectively. Suppose A can execute an instruction with an averageof 3 steps and B can execute with an average of 5 steps.For the execution of the same instruction which processor is faster
a)
A
b)
B
c)
Both take the same time
d)
Insufficient information
Jigar Patel asked • yesterdayThe line graph L(G) of a simple graph G is defined as follows: · There is exactly one vertex v(e) in L(G) for each edge e in G. · For any two edges e and e' in G, L(G) has an edge between v(e) and v(e'), if and only if e and e'are incident with the same vertex in G. Which of the following statements is/are TRUE?(P) The line graph of a cycle is a cycle.
(Q) The line graph of a clique is a clique.
(R) The line graph of a planar graph is planar.
(S) The line graph of a tree is a tree.- a)P only
- b)P and R only
- c)R only
- d)P, Q and S only
Correct answer is option 'A'. Can you explain this answer?
The line graph L(G) of a simple graph G is defined as follows: · There is exactly one vertex v(e) in L(G) for each edge e in G. · For any two edges e and e' in G, L(G) has an edge between v(e) and v(e'), if and only if e and e'are incident with the same vertex in G. Which of the following statements is/are TRUE?
(P) The line graph of a cycle is a cycle.
(Q) The line graph of a clique is a clique.
(R) The line graph of a planar graph is planar.
(S) The line graph of a tree is a tree.
(Q) The line graph of a clique is a clique.
(R) The line graph of a planar graph is planar.
(S) The line graph of a tree is a tree.
a)
P only
b)
P and R only
c)
R only
d)
P, Q and S only
Prashant Waghwase asked • yesterdayLet q, r, and s represent “You can ride the roller coaster,” “You are under 4 feet tall,” and “You are older than 16 years old,” respectively. What is the logical expression for “You cannot ride the roller coaster if you are under 4 feet tall unless you are older than 16 years old"- a)
- b)
- c)
- d)
Correct answer is option 'A'. Can you explain this answer?
Let q, r, and s represent “You can ride the roller coaster,” “You are under 4 feet tall,” and “You are older than 16 years old,” respectively. What is the logical expression for “You cannot ride the roller coaster if you are under 4 feet tall unless you are older than 16 years old"
a)
b)
c)
d)
Gaurav Kumar asked • yesterdayAn undirected graph G has n nodes. Its adjacency matrix is given by an n × n square matrix whose (i) diagonal elements are 0‘s and (ii) non-diagonal elements are 1‘s. which one of the following is TRUE?- a)Graph G has no minimum spanning tree (MST)
- b)Graph G has a unique MST of cost n-1
- c)Graph G has multiple distinct MSTs, each of cost n-1
- d)Graph G has multiple spanning trees of different costs
Correct answer is option 'C'. Can you explain this answer?
An undirected graph G has n nodes. Its adjacency matrix is given by an n × n square matrix whose (i) diagonal elements are 0‘s and (ii) non-diagonal elements are 1‘s. which one of the following is TRUE?
a)
Graph G has no minimum spanning tree (MST)
b)
Graph G has a unique MST of cost n-1
c)
Graph G has multiple distinct MSTs, each of cost n-1
d)
Graph G has multiple spanning trees of different costs
Madhu Arasi asked • yesterdayWhich of the following statements about relative addressing mode is FALSE?
A. It enables reduced instruction size
B. It allows indexing of array element with same instruction
C. It enables easy relocation of data
D. It enables faster address calculation than absolute addressing- a)A
- b)B
- c)C
- d)D
Correct answer is option 'D'. Can you explain this answer?
Which of the following statements about relative addressing mode is FALSE?
A. It enables reduced instruction size
B. It allows indexing of array element with same instruction
C. It enables easy relocation of data
D. It enables faster address calculation than absolute addressing
A. It enables reduced instruction size
B. It allows indexing of array element with same instruction
C. It enables easy relocation of data
D. It enables faster address calculation than absolute addressing
a)
A
b)
B
c)
C
d)
D
Richa Thakur asked • yesterdayConsider a computer system with 40-bit virtual addressing and page size of sixteen kilobytes. If the computer system has a one-level page table perprocess and each page table entry requires48 bits,then the size of the per-process page table is megabytes.- a)384.0 : 384.0
- b)385.0 : 385.0
- c)386.0 : 386.0
- d)387.0 : 387.0
Correct answer is '384'. Can you explain this answer?
Consider a computer system with 40-bit virtual addressing and page size of sixteen kilobytes. If the computer system has a one-level page table perprocess and each page table entry requires48 bits,then the size of the per-process page table is megabytes.
a)
384.0 : 384.0
b)
385.0 : 385.0
c)
386.0 : 386.0
d)
387.0 : 387.0
Damayanti Daule asked • yesterdayThe number of students in a class who have answered correctly, wrongly, or not attempted each question in exam, are listed in the table below. The marks fro each question are also listed. There is no negative or partial marking.
What is the average of the marks obtained by the class in the examination?- a)2.290
- b)2.970
- c)6.795
- d)8.795
Correct answer is option 'C'. Can you explain this answer?
The number of students in a class who have answered correctly, wrongly, or not attempted each question in exam, are listed in the table below. The marks fro each question are also listed. There is no negative or partial marking.
What is the average of the marks obtained by the class in the examination?
a)
2.290
b)
2.970
c)
6.795
d)
8.795
Pooja Daphal asked • yesterdayA computer has a 256 KByte, 4-way set associative, write back data cache with block size of 32 Bytes. The
processor sends 32 bit addresses to the cache controller. Each cache tag directory entry contains, in
addition to address tag, 2 valid bits, 1 modified bit and 1 replacement bit.The size of the cache tag directory is- a)160 Kbits
- b)136 Kbits
- c)40 Kbits
- d)32 Kbits
Correct answer is option 'A'. Can you explain this answer?
A computer has a 256 KByte, 4-way set associative, write back data cache with block size of 32 Bytes. The
processor sends 32 bit addresses to the cache controller. Each cache tag directory entry contains, in
addition to address tag, 2 valid bits, 1 modified bit and 1 replacement bit.
processor sends 32 bit addresses to the cache controller. Each cache tag directory entry contains, in
addition to address tag, 2 valid bits, 1 modified bit and 1 replacement bit.
The size of the cache tag directory is
a)
160 Kbits
b)
136 Kbits
c)
40 Kbits
d)
32 Kbits
Sai Kumar asked • yesterdayWhich of the following is true about Kruskal and Prim MST algorithms? Assume that Prim is implemented for adjacency list representation using Binary Heap and Kruskal is implemented using union by rank.- a)Worst case time complexity of both algorithms is same.
- b)Worst case time complexity of Kruskal is better than Prim
- c)Worst case time complexity of Prim is better than Kruskal
Correct answer is option 'A'. Can you explain this answer?
Which of the following is true about Kruskal and Prim MST algorithms? Assume that Prim is implemented for adjacency list representation using Binary Heap and Kruskal is implemented using union by rank.
a)
Worst case time complexity of both algorithms is same.
b)
Worst case time complexity of Kruskal is better than Prim
c)
Worst case time complexity of Prim is better than Kruskal
Hemant Gaikwad asked • yesterdayGiven the relationsemployee (name, salary, deptno) and department (deptno, deptname, address)Q. Which of the following queries cannot be expressed using the basic relational algebra operations (U, -, x,
, p)?- a)Department address of every employee
- b)Employees whose name is the same as their department name
- c)The sum of all employees’ salaries
- d)All employees of a given department
Correct answer is option 'C'. Can you explain this answer?
Given the relations
employee (name, salary, deptno) and department (deptno, deptname, address)
Q. Which of the following queries cannot be expressed using the basic relational algebra operations (U, -, x, , p)?
, p)?a)
Department address of every employee
b)
Employees whose name is the same as their department name
c)
The sum of all employees’ salaries
d)
All employees of a given department
Jnani Kurmadasu asked • yesterdayQ. 6 – Q. 10 carry two marks each.The Palghat Gap (or Palakkad Gap), a region about 30 km wide in the southern part of the Western
Ghats in India, is lower than the hilly terrain to its north and south. The exact reasons for the
formation of this gap are not clear. It results in the neighbouring regions of Tamil Nadu getting
more rainfall from the South West monsoon and the neighbouring regions of Kerala having higher summer temperaturesWhat can be inferred from this passage?- a)The Palghat gap is caused by high rainfall and high temperatures in southern Tamil Nadu and
Kerala - b)The regions in Tamil Nadu and Kerala that are near the Palghat Gap are low-lying
- c)The low terrain of the Palghat Gap has a significant impact on weather patterns in neighbouring
parts of Tamil Nadu and Kerala - d)Higher summer temperatures result in higher rainfall near the Palghat Gap area
Correct answer is option 'A'. Can you explain this answer?
Q. 6 – Q. 10 carry two marks each.
The Palghat Gap (or Palakkad Gap), a region about 30 km wide in the southern part of the Western
Ghats in India, is lower than the hilly terrain to its north and south. The exact reasons for the
formation of this gap are not clear. It results in the neighbouring regions of Tamil Nadu getting
more rainfall from the South West monsoon and the neighbouring regions of Kerala having higher summer temperatures
Ghats in India, is lower than the hilly terrain to its north and south. The exact reasons for the
formation of this gap are not clear. It results in the neighbouring regions of Tamil Nadu getting
more rainfall from the South West monsoon and the neighbouring regions of Kerala having higher summer temperatures
What can be inferred from this passage?
a)
The Palghat gap is caused by high rainfall and high temperatures in southern Tamil Nadu and
Kerala
Kerala
b)
The regions in Tamil Nadu and Kerala that are near the Palghat Gap are low-lying
c)
The low terrain of the Palghat Gap has a significant impact on weather patterns in neighbouring
parts of Tamil Nadu and Kerala
parts of Tamil Nadu and Kerala
d)
Higher summer temperatures result in higher rainfall near the Palghat Gap area
Kajal R Patil asked • yesterday"We lived in culture and denied any merit to literally works, Considering them important only when they were handmaidens to something seemingly more urgent - namely ideology. This was a country where all gestures even the most private , interpreted as political terms." The author's believes that ideology is not as important as literature is revealed by the word :- a)culture
- b)seemingly
- c)urgent
- d)political
Correct answer is option 'B'. Can you explain this answer?
"We lived in culture and denied any merit to literally works, Considering them important only when they were handmaidens to something seemingly more urgent - namely ideology. This was a country where all gestures even the most private , interpreted as political terms." The author's believes that ideology is not as important as literature is revealed by the word :
a)
culture
b)
seemingly
c)
urgent
d)
political
Vishakha Kakde asked • yesterdayAfter several defeats in wars, Robert Bruce went in exile and wanted to commit suicide. Just
before committing suicide, he came across a spider attempting tirelessly to have its net. Time
and again, the spider failed but that did not deter it to refrain from making attempts. Such
attempts by the spider made Bruce curious. Thus, Bruce started observing the nearimpossible
goal of the spider to have the net. Ultimately, the spider succeeded in having its
net despite several failures. Such act of the spider encouraged Bruce not to commit suicide.
And then, Bruce went back again and won many a battle, and the rest is history.
Which one of the following assertions is best supported by the above information?- a)Failure is the pillar of success
- b)Honesty is the best policy
- c)Life begins and ends with adventures
- d)No adversity justifies giving up hope
Correct answer is option 'D'. Can you explain this answer?
After several defeats in wars, Robert Bruce went in exile and wanted to commit suicide. Just
before committing suicide, he came across a spider attempting tirelessly to have its net. Time
and again, the spider failed but that did not deter it to refrain from making attempts. Such
attempts by the spider made Bruce curious. Thus, Bruce started observing the nearimpossible
goal of the spider to have the net. Ultimately, the spider succeeded in having its
net despite several failures. Such act of the spider encouraged Bruce not to commit suicide.
And then, Bruce went back again and won many a battle, and the rest is history.
before committing suicide, he came across a spider attempting tirelessly to have its net. Time
and again, the spider failed but that did not deter it to refrain from making attempts. Such
attempts by the spider made Bruce curious. Thus, Bruce started observing the nearimpossible
goal of the spider to have the net. Ultimately, the spider succeeded in having its
net despite several failures. Such act of the spider encouraged Bruce not to commit suicide.
And then, Bruce went back again and won many a battle, and the rest is history.
Which one of the following assertions is best supported by the above information?
a)
Failure is the pillar of success
b)
Honesty is the best policy
c)
Life begins and ends with adventures
d)
No adversity justifies giving up hope
Mrudul Addipalli asked • yesterdayA function f(x) is continuous in the interval [0,2]. It is known that f(0) = f(2) = -1 and f(1) =1 . which one of the following statemnts must be true?- a)There exists a y in the interval (0,1) such that f(y)= f(y+1)
- b)for every y in the interval (0,1), f(2) = f(2-y)
- c)The maximum value of the function in the interval (0,2) is 1
- d)There exists a y in the interval (0,1) such that f(y) = -f(2-y)
Correct answer is option 'A'. Can you explain this answer?
A function f(x) is continuous in the interval [0,2]. It is known that f(0) = f(2) = -1 and f(1) =1 . which one of the following statemnts must be true?
a)
There exists a y in the interval (0,1) such that f(y)= f(y+1)
b)
for every y in the interval (0,1), f(2) = f(2-y)
c)
The maximum value of the function in the interval (0,2) is 1
d)
There exists a y in the interval (0,1) such that f(y) = -f(2-y)
Vilas Shelke asked • 2 days agoWhich one of the following is an internet standard protocol for managing devices on IP network?- a)dynamic host configuration protocol
- b)simple newtwork management protocol
- c)internet message access protocol
- d)media gateway protocol
Correct answer is option 'B'. Can you explain this answer?
Which one of the following is an internet standard protocol for managing devices on IP network?
a)
dynamic host configuration protocol
b)
simple newtwork management protocol
c)
internet message access protocol
d)
media gateway protocol
PUNAM GOPAL asked • 2 days agoTwo cars start at the same time from the same location and go in the same direction. The speed of the first car is 50 km/h and the speed of the second car is 60 km/h. The number of hours it takes for the distance between the two cars to be 20 km is _________.- a)1
- b)3
- c)2
- d)6
Correct answer is option 'C'. Can you explain this answer?
Two cars start at the same time from the same location and go in the same direction. The speed of the first car is 50 km/h and the speed of the second car is 60 km/h. The number of hours it takes for the distance between the two cars to be 20 km is _________.
a)
1
b)
3
c)
2
d)
6
Soumya Sanket Patra asked • 2 days agoChoose the incorrect statements:
1. In network model, data is represented by a collection of records, and relationship among data are represented by links.
2 . In hierarchical model, data and relationships among data are represented by records and links respectively.
3. In hierarchical model, the records are organized as a collection of arbitrary graphs.
4. In network model, the records are organized as a collection of trees.- a)1 and 3 only
- b)2 and 3 only
- c)3 and 4 only
- d)All are correct
Correct answer is option 'D'. Can you explain this answer?
Choose the incorrect statements:
1. In network model, data is represented by a collection of records, and relationship among data are represented by links.
2 . In hierarchical model, data and relationships among data are represented by records and links respectively.
3. In hierarchical model, the records are organized as a collection of arbitrary graphs.
4. In network model, the records are organized as a collection of trees.
1. In network model, data is represented by a collection of records, and relationship among data are represented by links.
2 . In hierarchical model, data and relationships among data are represented by records and links respectively.
3. In hierarchical model, the records are organized as a collection of arbitrary graphs.
4. In network model, the records are organized as a collection of trees.
a)
1 and 3 only
b)
2 and 3 only
c)
3 and 4 only
d)
All are correct
Nikki Tiwari asked • 2 days agoThe access times of the main memory and the Cache memory, in a computer system, are 500 n sec and 50 n sec, respectively. It is estimated that 80% of the main memory request are for read the rest for write. The hit ratio for the read access only is 0.9 and a write-through policy (where both main and cache memories are updated simultaneously) is used.
Determine the average time of the main memory.Correct answer is 'Average memory access time = Time spend for read + Time spend for write= Read time when cache hit + Read time when cache miss+Write time when cache hit + Write time when cache miss= 0.8 ⨯ 0.9 ⨯ 50 + 0.8 ⨯ 0.1 ⨯ (500+50) (assuming hierarchical read from memory and cache as only simultaneous write is mentioned in question)+ 0.2 ⨯ 0.9 ⨯ 500 + 0.2 ⨯ 0.1 ⨯ 500 (simultaneous write mentioned in question)= 36 + 44 + 90 + 10 = 180 ns'. Can you explain this answer?
The access times of the main memory and the Cache memory, in a computer system, are 500 n sec and 50 n sec, respectively. It is estimated that 80% of the main memory request are for read the rest for write. The hit ratio for the read access only is 0.9 and a write-through policy (where both main and cache memories are updated simultaneously) is used.
Determine the average time of the main memory.
Determine the average time of the main memory.
Navya Nalamasa asked • 2 days agoConsider the following transactions with data items P and Q initialized to zero:
Any non-serial interleaving of T1 and T2 for concurrent execution leads to- a)A serializable schedule
- b)A schedule that is not conflict serializable
- c)A conflict serializable schedule
- d)A schedule for which a precedence graph cannot be drawn
Correct answer is option 'B'. Can you explain this answer?
Consider the following transactions with data items P and Q initialized to zero:
Any non-serial interleaving of T1 and T2 for concurrent execution leads to
a)
A serializable schedule
b)
A schedule that is not conflict serializable
c)
A conflict serializable schedule
d)
A schedule for which a precedence graph cannot be drawn
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