In TCP network terminology. Organization of computer networks

Condition: In the TCP / IP network terminology, a binary number is called a binary number that determines which part of the network node IP address refers to the network address, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

For a specified node IP address and mask, determine the network address.

IP Press node: 217.233.232.3

Mask: 255.255.252.0.

When writing an answer, select four elements of the IP address from the numbers given in the table and write down the letters corresponding to them in the desired order. You do not need to write points.

A.	B.	C.	D.	E.	F.	G.	H.
0	3	217	233	232	244	252	255

Example. Let the desired IP address 192.168.128.0, and given the table

A.	B.	C.	D.	E.	F.	G.	H.
128	168	255	8	127	0	17	192

In this case, the correct answer will be recorded in the form: HBAF

Solution 1: As stated in the task condition, to find the address of the network, you need to record the address of the network assembly and the subnet mask in the form of binary numbers and apply the bonus conjunction:

Network address: 217.233.232.3 \u003d 11011001.11101001.1101000.00000011

Subnet mask: 255.255.252.0 \u003d 1111111111111111111111111100.00000000

The bonnetic conjunction will give a unit with the coincidence of units and zero in three other cases. Thus, applying it, we get

Address Node Network: 217.233.232.0 \u003d 11011001.11101001.11101000.00000000

Answer: Cdea.

Solution 2. Calculate the bonnetic conjunction of the IP address of the network of the network and the mask taking into account the above section of the section « » :

IP address of the node (A)	217	233	232	3
Mask (B)	255	255	252	0
Network address (A & B)	217	233	232 & 252	0

The values \u200b\u200bof 3 of the four bytes are easily.

Digit conjunction 232 & 252 will have to calculate

232 10 = 128 + 64 + 32 + 8 = 2 7 +2 6 + 2 5 +2 3 = 1110 1000 2

252 10 = 128 + 64 + 32 + 16 + 8 + 4 = 2 7 +2 6 + 2 5 + 2 4 +2 3 +2 2 = 1111 1100 2

*232*	1	1	1	0	1	0
*252*	1	1	1	1	1	1
*232 & 252*	1	1	1	0	1	0

So, 232 ° C 252 \u003d 11101000 2 \u003d 2 7 +2 6 + 2 5 +2 3 \u003d 232

The desired address of the network: 217.233.232.0

Comment.The result could be obtained immediately after the translation of the numbers into the binary system, noting that 6 units in 11111100 2 retain 6 left discharges in 11101000 2.

It remains only to write down the answer in the right form. Select the desired values \u200b\u200bC \u003d 217, D \u003d 233, E \u003d 232, A \u003d 0 from the table.

Answer : Cdea.

Solution 3. (Another version of the decision of Solution 2) The address of the network has a form of 217.233.x.0, where X is obtained by resetting two younger binary discharges in number 232 (because there are two zero discharge in the number 252 \u003d 255-3). But the number 232 is divided into 2 2 \u003d 4. Therefore, two junior discharge in the binary recording of the number 232 and are so equal to 0. Therefore, X \u003d 232.

Network address address: 217.233.232.0

It remains to record letters instead of the values \u200b\u200bof the octets: CDEA

Answer: Cdea.

Solution 2. (see p.4 in the "Brief Theoretical Information" section) : The network address has a form of 217.233.x.0, where X is obtained by resetting two younger binary discharges, among 232. But the number 232 is divided into 2 2 \u003d 4. Therefore, two junior discharge in the binary recording of the number 232 and so equal to 0. Consequently, x \u003d 232.

HAPPY 12 TASKS OF THE EGE 2016 on computer science from demoralism. This is a task on the knowledge of the basic principles of the organization and operation of computer networks, network addressing (be able to work with common automated information systems). This is the task of the basic level of complexity. An approximate time of execution of the task is 2 minutes.

Task 12:

In the TCP / IP network terminology, a binary number is called a binary number that determines which part of the network node IP address refers to the network address, and which is to the address of the node itself in this network. Typically, the mask is recorded according to the same rules as the IP address, - in the form of four bytes, and each byte is written in the form of a decimal number. At the same time, in the mask, first (in the older discharges) cost units, and then from some discharge - zeros.
The network address is obtained as a result of the use of bonus conjunction to a specified node and mask.
For example, if the IP address of the node is 231.32.255.131, and the mask is 255.255.240.0, the address of the network is equal to 231.32.240.0.

For a node with an IP address 111.81.208.27 Network address is 111.81.192.0. What is the smallest possible value of the third side of the mask byte? Answer write in the form of a decimal number.

Answer: ________

HAPPENING 12 TASKS EGE 2016:

To get the address of the subnet, you need to perform a bonnetic conjunction (multiplication of binary discharges) between the mask and the IP address.

We translate into the binary system only the third byte of the IP address and network addresses, since, by the assignment condition, we only need the third paste mask.

208 10 \u003d 11010000 2 - IP address
192 10 \u003d 11000000 2 - address of the network

Now getting a mask can be recorded like this:

11010000 - IP.
XXXXXXXX - Mask
———
11000000 - network address

Multiplying the discharge of the IP address on the discharge masks we get the address of the network. Pay attention to the second right of the category of IP address and network addresses:

11 010000 - IP.
X. x.xXXXXX - Mask
———
11 000000 - network address

The second right of the discharge of the mask with zero can not be, since in this case the network addresses should also be zero, it means that this X can be only a unit:

11 010000 - IP.
X. 1 xXXXXX - Mask
———
11 000000 - network address

Now pay attention to the fourth right discharge address of the network and IP, it is equal to 1, and in the address of the network - 0. That is, the fourth right discharge of the mask cannot be one, since in this case the network addresses should also be a unit. It turns out that the fourth right discharge masks - 0:

1101 0000 - IP.
x1x 0 xXXX - Mask
———
1100 0000 - address of the network

In the mask, first (in older discharges) cost units, and then from a certain discharge - zeros, it means we can write a mask like this:

1101 0000 - IP.
11x0.0000 - Mask
———
110 00000 - network address

Last h. may be like a unit and zero, but by the condition of the task we need the smallest byte masks, therefore in place h. We put zero:

11010000 - IP.
11000000 - Mask
———
11000000 - network address

Transfer 11000000 2 to a decimal number system and get the answer.

11000000 2 = 192 10

For a specified node IP address and mask, determine the network address.

IP address of the node: 22.60.188.132

Mask: 255.255.248.0.

When recording an answer, select the four elements of the IP address from the numbers given in the table and write down the letters corresponding to them, without the use of points.

In this case, the correct answer will be recorded in the form of HBAF.

In the TCP / IP network terminology, a binary number is called a binary number that determines which part of the network node IP address refers to the network address, and which is to the address of the node itself in this network. Typically, the mask is recorded according to the same rules as the IP address, - in the form of four bytes, and each byte is written in the form of a decimal number. At the same time, in the mask, first (in the older discharges) cost units, and then from some discharge - zeros. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

For a node with an IP address 119.167.58.77 Network address is 119.167.32.0. What is the smallest possible value of the third side of the mask byte? Answer write in the form of a decimal number.

For a node with an IP address 122.160.147.132 Network address is 122.160.146.0. What is the third left byte mask? Answer write in the form of a decimal number.

For example, if the IP address of the node is 131.111.255.131, and the mask is 255.255.192.0, the subnet address is 131.111. 192.0.

For a node with an IP address 175.182.179.170 Network address is 175.182.160.0. What is the third left byte mask? Answer write in the form of a decimal number.

In the TCP / IP network terminology, a binary number is called a binary number that determines which part of the network node IP address refers to the network address, and which is to the address of the node itself in this network. Usually the mask is recorded according to the same rules as the IP address, - in the form of four bytes, and each byte is recorded as a decimal number. At the same time, in the mask first (in the older discharges) there are units, and then from some place - zeros. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

For example, if the IP address of the node is 207.123.255.131, and the mask is 255.240.0.0, the subnet address is 207.112.0.0.

According to the specified node IP address and mask, determine the third left byte of the network address. The IP address of the node: 155.102.133.70. Mask: 255.255.240.0. Answer write in the form of a decimal number.

In the TCP / IP network terminology, a binary number is called a binary number that determines which part of the network node IP address refers to the network address, and which is to the address of the node itself in this network. Typically, the mask is recorded according to the same rules as the IP address, - in the form of four bytes, and each byte is written in the form of a decimal number. At the same time, in the mask, first (in the older discharges) cost units, and then from some discharge - zeros. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

For example, if the IP address of the node is equal to 237.33.255.123, and the mask is equal to 255.255.240.0, the network address is 237.33.240.0.

For a node with an IP address 119.167.50.77 Network address is 119.167.48.0. What is the smallest possible value of the third side of the mask byte? Answer write in the form of a decimal number.

In the TCP / IP network terminology, a binary number is called a binary number that determines which part of the network node IP address refers to the network address, and which is to the address of the node itself in this network. Typically, the mask is recorded according to the same rules as the IP address, - in the form of four bytes, and each byte is written in the form of a decimal number. At the same time, in the mask first (in the older discharges) there are units, and then from some place - zeros. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

For example, if the IP address of the node is 131.111.255.131, and the mask is 255.255.192.0, the subnet address is 131.111.192.0.

For a node with an IP address of 14.16.244.235 Network address is 14.16.128.0. What is the third left byte mask? Answer write in the form of a decimal number.

In the TCP / IP network terminology, a binary number is called a binary number that determines which part of the network node IP address refers to the network address, and which is to the address of the node itself in this network. Typically, the mask is recorded according to the same rules as the IP address, - in the form of four bytes, and each byte is written in the form of a decimal number. At the same time, in the mask first (in the older discharges) there are units, and then from some place - zeros. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

For example, if the IP address of the node is 131.111.255.131, and the mask is 255.255.192.0, the subnet address is 131.111.192.0.

For a node with an IP address 136.206.24.314 Network address is 136.204.0.0. What is the second left byte mask? Answer write in the form of a decimal number.

The network address is obtained as a result of the use of a bonnetic conjunction to a specified node IP address and a mask.

For example, if the IP address of the node is 231.32.255.131, and the mask is 255.255.240.0, the address of the network is equal to 231.32.240.0.

For a node with an IP address 115.181.92.48 Network address is 115.181.80.0. What is the value of the third on the left of the mask byte? Answer write in the form of a decimal number.

In the TCP / IP network terminology, a binary number is called a binary number that determines which part of the network node IP address refers to the network address, and which is to the address of the node itself in this network. Usually the mask is recorded according to the same rules as the 1P address, - in the form of four bytes, and each byte is recorded as a decimal number. At the same time, in the mask first (in the older discharges) there are units, and then from some place - zeros. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

"2. In the terminology of TCP / IP network, the subnet mask is a 32-bit binary number that determines which discharges of the computer's IP address are common to the entire subnet - in these ... "

Tasks B11 on computer science

1. In the terminology of TCP / IP networks, the subnet mask is called 32-bit binary

the number defining which discharges of the computer's IP address are

common to the entire subnet - in these discharges masks standing 1. Usually masks

they are recorded in the form of four decimal numbers - according to the same rules as iPaths. For some subnet, a mask is used 255.255.254.0. how many

different addresses of computers allows this mask?

Note. In practice, used for the address of the ATSI and to the OMP sounder of the NS not d via the addresses: and the networks of the network and the broadcast address about T in E T: 510

2. In the terminology of the TCP / IP network, the subnet mask is called a 32-bit binary number that determines which discharges of the computer's IP address are common to the entire subnet - in these discharges a mask stands 1. Usually the masks are written in the form of four decimal numbers. same rules as iPaths. For some subnet, a mask is used 255.255.248.0. How many different addresses of computers allows this mask?

Note. In practice, not two addresses are used to address: a network of networks and a broadcast address.

About T in E T: 2046 www.CTEGE.INFO

3. The TCP / IP network terminology of the mask is called a binary number that determines which part of the network node IP address is related to the address of the network, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

IP address of the node: 217.9.142.131 Mask: 255.255.192.0 When recording recording, select the four items of the iPatress from the numbers given in the table and write down the letters corresponding to them, without using points ..

A B C D E F G H

Example.

A B C D E F G H

In this case, the correct answer will be recorded in the form: HBAF.

About T in E T: HBEA

4. In the TCP / IP IP network terminology, a binary number is called which part of the network node IP address is related to the network address, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

For a specified node IP address and mask, determine the network address.

Node IP: 217.9.142.131 Mask: 255.255.224.0 When recording recording, select the four items of the iPadress from the numbers given in the table and write down the letters corresponding to them without using points.

A B C D E F G H

Example.

Let the desired IP address 192.168.128.0, and given Table A B C

- & nbsp- & nbsp-

About T in E T: HBDA www.CTEGE.INFO

5. In the terminology of the TCP / IP network network, a binary number is called which part of the network node IP address is related to the network address, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of a bonnetic conjunction to a specified node IP address and a mask.

For a specified node IP address and mask, determine the network address.

Node IP address: 234.95.131.37 Mask: 255.255.192.0 When recording an answer, select the four elements of the IP address from the numbers given in the table below and write down the letters without using points in the desired order.

- & nbsp- & nbsp-

6. In the TCP / IP network terminology, the network mask is a binary number that determines which part of the network node IP address is related to the address of the network, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of a bonnetic conjunction to a specified node IP address and a mask.

For a specified node IP address and mask, determine the network address.

Node IP address: 237.195.158.37 Mask: 255.255.192.0 When writing an answer, select the four items of the iPadress from the numbers given in the table below and write down the letters in the desired order without using points.

A B C D E F G H

Example.

Let the desired IP address 192.168.128.0, and given the table

- & nbsp- & nbsp-

7. In the terminology of the TCP / IP network network, a binary number is called which part of the network node IP address refers to the network address, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

For a specified node IP address and mask, determine the network address.

- & nbsp- & nbsp-

About T in E T: Cedh

8. In the terminology of the TCP / IP network network, a binary number is called, which determines which part of the network node IP address is related to the address of the network, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

For a specified node IP address and mask, determine the network address.

Node IP address: 229.37.229.32 Mask: 255.255.224.0 When writing an answer, select the four items of the iPadress from the numbers viewed in the number table and write down the letters without using points in the desired order.

- & nbsp- & nbsp-

9. The TCP / IP network terminology of the network mask is a binary number that determines which part of the network node IP address refers to the address of the network, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

For a specified node IP address and mask, determine the network address.

Node IP: 224.230.250.29 Mask: 255.255.240.0 When writing a response, select the four items of the iPadress from the numbers given in the number table and write down the letters corresponding to them without using points.

- & nbsp- & nbsp-

10. The terminology of the TCP / IP network networks is called a binary number that determines which part of the network node IP address refers to the address of the network, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of the bonnetic conjunction to the specified node IP address and mask.

For a specified node IP address and mask, determine the network address.

The IP address of the node: 224.120.249.18 Mask: 255.255.240.0 When recording recording, select the four items of the iPadress from the numbers given in the table below and write down the letters corresponding to them without the use of points.

And in c d e f g and

Promper.

And in c d e f g n

In this case, the correct answer will be recorded in the water: NVAI www.CEGE.INFO O T V E T: DEFA

11. In the TCP / IP network terminology, the network mask is a binary number that determines which part of the network node IP address refers to the address of the network, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of a bonnetic conjunction to a specified node IP address and a mask.

For a specified node IP address and mask, determine the network address.

Node IP address: 224.23.251.133 Mask: 255.255.240.0 When recording a response, select the four items of the iPadress from the numbers given in the table and write down the letters without using points in the desired order.

And in c d e f g and

Example.

And in c d e f g n

In this case, the correct answer will be recorded as IVAI

About T in E T: DFBH

12. In the terminology of the TCP / IP network network, a binary number is called, which determines which part of the network node IP address is related to the address of the network, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of a bonnetic conjunction to a specified node IP address and a mask.

For a specified node IP address and mask, determine the network address.

Node IP address: 224.32.249.137 Mask: '255.255.240.0 When recording a response, select the four items of the iPadress from the numbers given in the table and record the letters corresponding to them without using points.

And in c d e f g and

Example.

Let the desired IP address 192.168.128.0 and the table

And in c d e f g n

In this case, the correct answer will be recorded as IVAI www.ctege.info

About T in E T: DFCH

13. In the TCP / IP network terminology, the network mask is a binary number that determines which part of the network node IP address refers to the address of the network, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of a bonnetic conjunction to a specified node IP address and a mask.

For a specified node IP address and mask, determine the network address.

Node IP address: 224.24.254.134 Mask: '255.255.224.0 When recording a response, select the four items of the IPAtress from the numbers given in the table and record the letters corresponding to them without using points.

And in c d e f g and

Example.

Let the desired IP address 192.168.128.0 and the table

And in c d e f g n

In this case, the correct answer will be recorded in the form of NVAI.

About T in E T: DFDH

14. The TCP / IP network terminology of the mask is called a binary number that determines which part of the network node IP address is related to the address of the network, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of a bonnetic conjunction to a specified node IP address and a mask.

For a specified node IP address and mask, determine the network address.

Node IP address: 224.37.249.32 Mask: '255.255.224.0 When recording a response, select the four items of the iPatress from the numbers given in the table below and write down the letters corresponding to them without using points.

And in c d e f g and

Example.

Let the desired IP address 192.168.128.0 and the table

And in c d e f g n

www.CEGE.INFO OT V E T: Dedh

15. The TCP / IP network terminology of the network mask is a binary number that determines which part of the network node IP address refers to the address of the network, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of a bonnetic conjunction to a specified node IP address and a mask.

For a specified node IP address and mask, determine the network address.

Node IP address: 224.34.225.134 Mask: 255.255.252.0 When recording a response, select the four items of the iPadress from the numbers given in the table and write down the letters without using points in the desired order.

And in c d e f g n

Example.

Let the desired 1p address 192.168.128.0, and given a table

And in c d e f g n

In this case, the correct answer will be recorded in the form of HBAF.

About T in E T: Cech

16. In the TCP / IP network terminology, a binary number is called which part of the network node IP address is related to the network address, and which is to the address of the node itself in this network. Usually the mask is written in the same rules as the IP address. The network address is obtained as a result of the use of a bonnetic conjunction to a specified node IP address and a mask.

For a specified node IP address and mask, determine the network address.

Node IP address: 248.137.249.32 Mask: 255.255.252.0 When recording recording, select the four items of the iPadress from the numbers given in the table and write down the letters without using points in the desired order.

And in c d e f g n

- & nbsp- & nbsp-

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