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1
Probability Gravner 25
Assume that $20$ Scandinavians, $10$ Finns, and $10$ Danes, are to be distributed at random into $10$ rooms, $2$ per room. What is the probability that exactly $2i$ rooms are mixed, $i= 0, . . .5$?
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Probability
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Pooja Khatri
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2
Probability Gravner 24
You have $10$ pairs of socks in the closet . Picks $8$ socks at random. For every $i$, compute the probability that you get $i$ complete pairs of socks.
asked
9 minutes
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Probability
by
Pooja Khatri
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3
CSMA/CD
Consider a scenario of CSMA / CD network. Suppose adapter A and B attempt to transmit a frame simultaneously and collide, with exponential back off algorithm. A choose k =0 and B also choose k=0._Again they collide; after this collision both A and B will choose k with equal probability from set A (A) for A ... ,2;3} &for B, {0,1,2,3} (C) for A, {0,1} & for B, {0,1} (D) None of these
asked
9 minutes
ago
in
Computer Networks
by
BOB
(
95
points)

2
views
0
votes
0
answers
4
Routers
A router outside the organization received a packet 224.240.7.91. Consider following steps taken by router. 1. The router looks in its routing table to find out how to route the packet to the destination. 2. The router looks at the first byte of the address to find the class. 3. The default mask ... required step for finding the route? (A) 3  1 (B) Only 1 (C) 2  3  1 (D) 1  2  3
asked
10 minutes
ago
in
Computer Networks
by
BOB
(
95
points)

2
views
0
votes
0
answers
5
Probability Gravner  23
Roll a die $12$ times. Compute the probability that a number occurs $6$ times and two other numbers occur three times each.
asked
11 minutes
ago
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Probability
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Pooja Khatri
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6
Doubt
In a Gb Ethernet a particular node has issued a ‘ PAUSE ‘ frame to other end directing to pause for 1000 units of time . what is the total wait time ? (A)128microsecond (B)64microsecond (C)512microsecond (D)32microsecond
asked
11 minutes
ago
in
Computer Networks
by
BOB
(
95
points)

1
view
0
votes
0
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7
Probability Gravner22
Assume that there are k people in the room. What is the probability that there are two who share a birthday? we will ignore leap years, assume all birthdays are equally likely, and generalize the problems a little:from n possible birthdays, sample k times with replacement.
asked
13 minutes
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Probability
by
Pooja Khatri
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8
Doubt
Consider a LAN with 500 stations connected to five 500 m segments. The data rate is 10 Mbps and the slot time is 51.2 sec. If all the stations transmit with equal probability, what is the channel utilization using a frame size of 512 bytes (Number of contention slots are 1.716) (A) 18% (B) 90% (C)None (D) 82%
asked
14 minutes
ago
in
Computer Networks
by
BOB
(
95
points)

1
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0
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0
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9
Doubt
In TCP, what is the minimum number of packets required to complete the data transfer between sender and receiver? (A) 9 (B) 8 (C) 7 (D) 6
asked
15 minutes
ago
in
Computer Networks
by
BOB
(
95
points)

3
views
0
votes
0
answers
10
Probability Gravner21
A large company with $n$ employees has scheme according to which each employee buys a Christmas gift and the gifts are then distributed at random to the employees.What is the probability that someone gets his or her own gift?
asked
16 minutes
ago
in
Probability
by
Pooja Khatri
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3.7k
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2
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probability
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11
Doubt
The round trip delay between X and Y is given as 60 ms and bottle neck bandwidth of link between X and Y is 512 KBps. What is _____ the optimal window size (in packets) if the packet size is 64 bytes and channel is full duplex.
asked
18 minutes
ago
in
Computer Networks
by
BOB
(
95
points)

4
views
0
votes
0
answers
12
Probability  Gravner20
A group of $3$ Norwegians, $4$ Swedes, and $5$ Finns is seated at random around a table. Compute the probability that at least one of the three groups ends up sitting together.
asked
19 minutes
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Probability
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Pooja Khatri
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13
Computer Networks Sub Netwoks
Consider an organization with a classC IP network address of 195.37.5.0, they wish to divide the network into different sub networks. The subnet mask is 255.255.255.192 Q.1. Which one of the following is not a broadcast address in any of the sub ... IP address belongs to (A) The first sub network (B) The second sub network (C) third sub network (D) Fourth sub network
asked
19 minutes
ago
in
Computer Networks
by
BOB
(
95
points)

1
view
0
votes
0
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14
Aptitude Doubt
If (4446)x + (2222)x = (10001)x then value of (2342)x  (1656)x = (?)x how to solve these kinds of questions?
asked
21 minutes
ago
in
Numerical Ability
by
aditi19
Junior
(
695
points)

6
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numericalability
0
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15
Computer Network Subnet
A classC address has the following subnet mask 255.255.255.192. Which of the following are valid IP addresses under this network? i. 194.25.64.68 ii. 194.43.75.128 iii. 194.65.73.64 iv. 194.75.74.131 (A) i & ii (B) i, ii and iv (C) i, & iv (D) ii & iv
asked
22 minutes
ago
in
Computer Networks
by
BOB
(
95
points)

2
views
0
votes
0
answers
16
Computer Network Firewall
Which of the following parameters can be used by a firewall to decide whether to forward/drop packets? (a) Sources IP address and destination IP address (b) TCP/UDP sources and destination port numbers (c) TCP/SYN and ACK bits (d) All of these
asked
25 minutes
ago
in
Computer Networks
by
BOB
(
95
points)

2
views
0
votes
0
answers
17
Probability  Gravner15.c
A tennis tournament has $2n$ participants, $n$ Swedes and n Norwegians. First, $n$ people are chosen at random from the $2n$ (with no regard to nationality) and then paired randomly with the other $n$ people. Each pair proceeds to play one match. ... the loser in each of the $n$ matches. (c) Under this assumption, compute the probability that all Swedes are the winners.
asked
26 minutes
ago
in
Probability
by
Pooja Khatri
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3.7k
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5
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probability
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18
Probability  Gravner15.b
A tennis tournament has $2n$ participants, $n$ Swedes and n Norwegians. First, $n$ people are chosen at random from the $2n$ (with no regard to nationality) and then paired randomly with the other $n$ people. Each pair proceeds to play one match. An ... loser in each of the $n$ matches. (b) What do you need to assume to conclude that all outcomes are equally likely?
asked
26 minutes
ago
in
Probability
by
Pooja Khatri
Active
(
3.7k
points)

2
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probability
gravner
engineeringmathematics
0
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19
Computer Network Public Key
asked
29 minutes
ago
in
Computer Networks
by
BOB
(
95
points)

1
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0
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0
answers
20
Doubt
"The services required in a public key cryptosystem is Authentication", then which of the following is correct? (a) Sender encrypts the data using receiver's public key (b) Sender encrypts the data using its public key (c) Sender encrypts the data using its private key (d) None of these
asked
31 minutes
ago
in
Computer Networks
by
BOB
(
95
points)

2
views
0
votes
0
answers
21
Made Easy test series
Consider Shubhani wants to transfer a file from host A to host B connected via a link with 100 Mbps bandwidth. Shubhani chooses maximum file size to transfer with MSS of 1460 B. If total 66 bytes of transport, network and data link layer header are added to each segment before the packet is sent over the link, then the time to transmit the file is _____s.
asked
46 minutes
ago
in
Computer Networks
by
Sambhrant Maurya
Junior
(
669
points)

4
views
computernetworks
isoosi
0
votes
0
answers
22
TCP 3wayhandshake
asked
58 minutes
ago
in
Computer Networks
by
Sambhrant Maurya
Junior
(
669
points)

3
views
computernetworks
tcp
3wayhandshaking
0
votes
0
answers
23
IPv4 (Wrap around time)
Consider an IPv4 network. Each host can generate packets at the rate of 500 packets per second. If each host in the network is identified by unique identification number of 48 bits, then the host wrap around time for generating packets will be ________s
asked
1 hour
ago
in
Computer Networks
by
Sambhrant Maurya
Junior
(
669
points)

2
views
ipv4
computernetworks
networkaddressing
ipaddress
0
votes
0
answers
24
lossless and dependency preserving decomposition #testseries
asked
1 hour
ago
in
Databases
by
night_fury
(
7
points)

6
views
dependencypreserving
losslessdecomposition
0
votes
0
answers
25
Self dual functions
What is self dual function with proper example and explanation.
asked
1 hour
ago
in
Digital Logic
by
indra thakur
(
7
points)

10
views
0
votes
0
answers
26
ER diagram to Tables
Tables needed for ER diagram
asked
1 hour
ago
in
Databases
by
Mk Utkarsh
Boss
(
16.9k
points)

16
views
erdiagram
databases
ertorelational
0
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27
Adder
asked
1 hour
ago
in
Digital Logic
by
HeadShot
Active
(
1.2k
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6
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0
votes
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28
Ripple carry adder
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1 hour
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in
Digital Logic
by
HeadShot
Active
(
1.2k
points)

4
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0
votes
0
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29
GATE previous year
$\text{Someone please explain this question, I am not able to solve it}$ https://gateoverflow.in/87053/gate19891vi
asked
3 hours
ago
in
Digital Logic
by
!KARAN
Junior
(
537
points)

14
views
floatingpointrepresentation
0
votes
0
answers
30
self dout
what is the difference between denumerable , enumerable , countable. please explain I confused with this term when i see some theorem "Power set of an infinite set(denumerable ) set is not denumerable." "Let S be an infinite countable set. Then its power set 2s is not countable."
asked
4 hours
ago
in
Theory of Computation
by
pream sagar
Junior
(
573
points)

8
views
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