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0 votes
1 answer
101
NIELIT Scientist B 2020 November: 108
___________ tells a firewall about how to reassemble a data stream that has been divided into packets. The source routing feature The number in the header’s identification field The destination $IP$ address The header checksum field in the packet header
___________ tells a firewall about how to reassemble a data stream that has been divided into packets.The source routing featureThe number in the header’s identificatio...
1 votes
1 answer
103
NIELIT Scientist B 2020 November: 110
An attribute(s) that is used to look up for records in a file is called a: Function key Catalog key Access key Search key
An attribute(s) that is used to look up for records in a file is called a:Function keyCatalog keyAccess keySearch key
2 votes
1 answer
104
NIELIT Scientist B 2020 November: 111
An expression in the domain relational calculus is of the form: $\{ P(x_1,x_2,\dots ,x_n)|< x_1,x_2,\dots ,x_n> \}$ $\{ x_1,x_2,\dots ,x_n |< x_1,x_2,\dots ,x_n> \}$ $\{ x_1,x_2,\dots ,x_n | x_1,x_2,\dots ,x_n \}$ $\{ < x_1,x_2,\dots ,x_n>| P(x_1,x_2,\dots ,x_n) \}$
An expression in the domain relational calculus is of the form:$\{ P(x_1,x_2,\dots ,x_n)|< x_1,x_2,\dots ,x_n \}$$\{ x_1,x_2,\dots ,x_n |< x_1,x_2,\dots ,x_n \}$$\{ x_1,...
1 votes
0 answers
105
NIELIT Scientist B 2020 November: 112
Let $X_1,\dots X_{50}$ be independent random variables following $N(0,1)$ distribution. Let $\Sigma _{i=1}^{50} X^2_i,$ and $E(Y)=a$ and $Var(Y)=b.$ Then, the ordered pair $(a,b)$ is: $(50,100)$ $(50,50)$ $(25,50)$ $(25,100)$
Let $X_1,\dots X_{50}$ be independent random variables following $N(0,1)$ distribution.Let $\Sigma _{i=1}^{50} X^2_i,$ and $E(Y)=a$ and $Var(Y)=b.$ Then, the ordered pair...
0 votes
1 answer
107
NIELIT Scientist B 2020 November: 114
A special $PCM$ system uses $32$ channels of data, one whose purpose is an identification (ID) and synchronization. The sampling rate is $4$ kHz. The word length is $5$ bits. Find the serial data rate. $1280\;kHz$ $160\;kHz$ $320 \;kHz$ $640 \;kHz$
A special $PCM$ system uses $32$ channels of data, one whose purpose is an identification (ID) and synchronization. The sampling rate is $4$ kHz. The word length is $5$ b...
1 votes
1 answer
108
NIELIT Scientist B 2020 November: 115
Considering binary relationships, possible cardinality ratios are: one:one $1:N$ $M:N$ All the options
Considering binary relationships, possible cardinality ratios are:one:one$1:N$$M:N$All the options
0 votes
1 answer
110
NIELIT Scientist B 2020 November: 117
You are working with a network that is $172.16.0.0$ and would like to support $600$ hosts per subnet. What subnet mask should you use? $255.255.192.0$ $255.255.224.0$ $255.255.252.0$ None of the options
You are working with a network that is $172.16.0.0$ and would like to support $600$ hosts per subnet. What subnet mask should you use?$255.255.192.0$$255.255.224.0$$255.2...
0 votes
0 answers
111
NIELIT Scientist B 2020 November: 118
The number of $4$ digit numbers which contain not more than two different digits is: $576$ $567$ $513$ $504$
The number of $4$ digit numbers which contain not more than two different digits is:$576$$567$$513$$504$
1 votes
1 answer
112
NIELIT Scientist B 2020 November: 119
___________________ is automatically loaded and operates as part of browser. Add-ons Plug-ins Utilities Widgets
___________________ is automatically loaded and operates as part of browser.Add-onsPlug-insUtilitiesWidgets
1 votes
2 answers
113
NIELIT Scientist B 2020 November: 120
One-megabyte memory storage in form of bytes is equal to ___________ $1024$ bytes $1024^2$ bytes $1024^3$ bytes $1024^4$ bytes
One-megabyte memory storage in form of bytes is equal to ___________$1024$ bytes$1024^2$ bytes$1024^3$ bytes$1024^4$ bytes
1 votes
1 answer
114
NIELIT Scientific Assistant A 2020 November: 21
Ramesh’s father is a paediatrician. Ram’s father is a trader. Krishan’s father is a school teacher. Krishan falls ill. Where should his father take him? to home to school to Ramesh’s father to Ram’s father
Ramesh’s father is a paediatrician. Ram’s father is a trader. Krishan’s father is a school teacher. Krishan falls ill. Where should his father take him?to hometo sc...
1 votes
2 answers
119
NIELIT Scientific Assistant A 2020 November: 26
Answer the question on the basis of the data given below: $O$ is $X’s$ father $Y$ is $Z’s$ mother $P$ is $O’s$ mother $X$ is $Z’s$ Sister How is $O$ related to $Z$? Brother Cousin Father Uncle
Answer the question on the basis of the data given below:$O$ is $X’s$ father$Y$ is $Z’s$ mother$P$ is $O’s$ mother$X$ is $Z’s$ SisterHow is $O$ related to $Z$?Bro...
1 votes
2 answers
120
NIELIT Scientific Assistant A 2020 November: 27
Answer the question on the basis of the data given below: $O$ is $X’s$ father $Y$ is $Z’s$ mother $P$ is $O’s$ mother $X$ is $Z’s$ Sister How is $P$ related to $X$? Mother Grandmother Sister Daughter
Answer the question on the basis of the data given below:$O$ is $X’s$ father$Y$ is $Z’s$ mother$P$ is $O’s$ mother$X$ is $Z’s$ SisterHow is $P$ related to $X$?Mot...
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