IP Address Versi 4

1. Default subnetmask atau natural subnet mask untuk IP Address kelas C adalah :

255.0.0.0

255.255.0.0

255.255.255.0

255.255.255.255

The correct answer is 255.255.255.0. The default subnet mask for a Class C IP address is 255.255.255.0. This subnet mask allows for a maximum of 254 hosts on the network, with the first three octets (255.255.255) representing the network portion and the last octet (0) representing the host portion.

Explanation

The correct answer is 255.255.255.0. The default subnet mask for a Class C IP address is 255.255.255.0. This subnet mask allows for a maximum of 254 hosts on the network, with the first three octets (255.255.255) representing the network portion and the last octet (0) representing the host portion.

2. Jika anda mengkonfigurasi IP Address pada suatu PC atau Host yang secara otomatis memberikan subnet mask setelah IP Address diinputkan dengan benar, maka jika IP Address yang dimasukkan adalah 202.67.19.5, maka subnet mask yang dimunculkan otomatis tsb. adalah :

255.255.255.0

255.255.0.0

255.0.0.0

0.0.0.0

The subnet mask that is automatically displayed after inputting the IP address 202.67.19.5 correctly is 255.255.255.0. This subnet mask is commonly used for a Class C network, where the first three octets of the IP address represent the network portion and the last octet represents the host portion. The subnet mask 255.255.255.0 indicates that the first three octets are the network portion, allowing for 254 hosts on the network.

Explanation

The subnet mask that is automatically displayed after inputting the IP address 202.67.19.5 correctly is 255.255.255.0. This subnet mask is commonly used for a Class C network, where the first three octets of the IP address represent the network portion and the last octet represents the host portion. The subnet mask 255.255.255.0 indicates that the first three octets are the network portion, allowing for 254 hosts on the network.

3. Seorang pengusaha travel memiliki kantor pusat di Jakarta dan kantor cabang di bandung. Perusahaan tersebut memutuskan menggunakan satu kelas C IP Address private yang digunakan untuk semua perangkan komunikasi datanya baik yang ada di Jakarta atau Bandung. IP Address kelas C berikut yang dapat digunakan adalah :

192.0.0.0/24

192.168.19.0/24

192.200.18.0/24

200.1.1.0/24

The correct answer is 192.168.19.0/24 because it falls under the range of private IP addresses specified for Class C networks. Private IP addresses are used for internal communication within a network and are not routable on the internet. The /24 indicates that the first 24 bits of the IP address are the network address, leaving 8 bits for host addresses. This allows for a maximum of 256 host addresses in the network.

Explanation

The correct answer is 192.168.19.0/24 because it falls under the range of private IP addresses specified for Class C networks. Private IP addresses are used for internal communication within a network and are not routable on the internet. The /24 indicates that the first 24 bits of the IP address are the network address, leaving 8 bits for host addresses. This allows for a maximum of 256 host addresses in the network.

4. Sebuah perusahaan besar nasional ingin membangun jaringan komunikasi data untuk internal perusahaan dengan menggunakan IP Address private kelas A, maka blok IP Address yang digunakan adalah :

5.0.0.0/8

10.0.0.0/8

15.0.0.0/8

100.0.0.0/8

The correct answer is 10.0.0.0/8 because a private network using IP address class A requires an IP address range that starts with 10.x.x.x. The /8 subnet mask indicates that the first 8 bits of the IP address are fixed, allowing for a range of 10.0.0.0 to 10.255.255.255, providing a large number of available IP addresses for internal use within the company.

Explanation

The correct answer is 10.0.0.0/8 because a private network using IP address class A requires an IP address range that starts with 10.x.x.x. The /8 subnet mask indicates that the first 8 bits of the IP address are fixed, allowing for a range of 10.0.0.0 to 10.255.255.255, providing a large number of available IP addresses for internal use within the company.

5. Perhatikan blok-blok IP Address berikut ini : 130.0.0.0, 140.0.0.0, 150.0.0.0 dan 160.0.0.0. Default subnet mask dari semua blok IP address tersebut adalah :

255.0.0.0 atau /8

255.255.0.0 atau /16

255.255.255.0 atau /24

255.255.255.128 atau /25

The correct answer is 255.255.0.0 or /16. This is because the given IP address blocks have a common network address of 0.0.0.0 in the first two octets. A subnet mask of /16 allows for 16 bits to be used for the network portion of the IP address, leaving 16 bits for the host portion. This allows for a maximum of 65,536 possible host addresses within each IP address block.

Explanation

The correct answer is 255.255.0.0 or /16. This is because the given IP address blocks have a common network address of 0.0.0.0 in the first two octets. A subnet mask of /16 allows for 16 bits to be used for the network portion of the IP address, leaving 16 bits for the host portion. This allows for a maximum of 65,536 possible host addresses within each IP address block.

6. Suatu host dalam jaringan LAN memiliki IP Address 12.34.56.78 dengan IP default gateway 12.34.56.80, maka host tersebut berada pada satu jaringan dengan PC-PC yang memiliki IP Address berikut (pilih 2 jawaban) :

12.0.0.80

21.34.56.70

12.3.4.5

123.45.6.0

The given host has an IP address of 12.34.56.78 and a default gateway of 12.34.56.80. In order for two devices to be on the same network, their IP addresses must have the same network portion.

Looking at the answer choices, the IP addresses 12.0.0.80 and 12.3.4.5 both have the same network portion (12.x.x.x) as the given host's IP address, indicating that they are on the same network. Therefore, these two IP addresses are the correct answers.

Explanation

The given host has an IP address of 12.34.56.78 and a default gateway of 12.34.56.80. In order for two devices to be on the same network, their IP addresses must have the same network portion.

Looking at the answer choices, the IP addresses 12.0.0.80 and 12.3.4.5 both have the same network portion (12.x.x.x) as the given host's IP address, indicating that they are on the same network. Therefore, these two IP addresses are the correct answers.

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7. Admiistrator jaringan memutuskan untuk menggunakan IP Addess private kelas B untuk jaringan Intranet perusahaannya. Bantulah administrator tersebut mana diantara blok IP Address berikut yang dapat digunakan untuk intranetnya (Pilih 2 jawaban).
Kata kunci IP Address kelas B, IP Address Private

192.168.130.0/24

170.16.0.0/16

172.28.0.0/16

172.30.0.0/16

The correct answer is 172.28.0.0/16 and 172.30.0.0/16. These two IP address blocks fall within the range of private IP addresses for class B networks. The first octet of the IP address in both cases is 172, which falls within the range of 172.16.0.0 to 172.31.255.255, designated for private use. Therefore, these two IP address blocks can be used for the company's intranet.

Explanation

The correct answer is 172.28.0.0/16 and 172.30.0.0/16. These two IP address blocks fall within the range of private IP addresses for class B networks. The first octet of the IP address in both cases is 172, which falls within the range of 172.16.0.0 to 172.31.255.255, designated for private use. Therefore, these two IP address blocks can be used for the company's intranet.

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8. Suatu host dalam jaringan LAN memiliki IP Address 203.45.6.78 dengan IP default gateway 203.45.6.87, maka host tersebut berada pada satu jaringan dengan PC-PC yang memiliki IP Address berikut :

203.45.0.87

203.45.6.100

203.45.6.240

203.4.56.90

The IP address of the host is 203.45.6.78 and the default gateway is 203.45.6.87. In order for two devices to be on the same network, they must have the same network address. The network address is determined by the first three octets of the IP address. Therefore, the devices with IP addresses 203.45.6.100 and 203.45.6.240 are on the same network as the host because they have the same network address (203.45.6.x). The other two devices have different network addresses and are not on the same network as the host.

Explanation

The IP address of the host is 203.45.6.78 and the default gateway is 203.45.6.87. In order for two devices to be on the same network, they must have the same network address. The network address is determined by the first three octets of the IP address. Therefore, the devices with IP addresses 203.45.6.100 and 203.45.6.240 are on the same network as the host because they have the same network address (203.45.6.x). The other two devices have different network addresses and are not on the same network as the host.

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9. Suatu host dalam jaringan LAN memiliki IP Address 123.45.6.78 dengan IP default gateway 123.45.6.87, maka host tersebut berada pada jaringan dengan network address :

123.0.0.0

123.45.67.0

123.45.6.78

123.45.0.0

The network address of the host can be determined by looking at the IP address and the default gateway. In this case, the IP address of the host is 123.45.6.78 and the default gateway is 123.45.6.87. The network address is obtained by setting all the bits in the host portion of the IP address to zero. Therefore, the network address in this case is 123.45.0.0.

Explanation

The network address of the host can be determined by looking at the IP address and the default gateway. In this case, the IP address of the host is 123.45.6.78 and the default gateway is 123.45.6.87. The network address is obtained by setting all the bits in the host portion of the IP address to zero. Therefore, the network address in this case is 123.45.0.0.

10. Suatu host dalam jaringan LAN memiliki IP Address 123.45.6.78 dengan IP default gateway 123.45.6.87, maka host tersebut berada pada satu jaringan dengan PC-PC yang memiliki IP Address berikut (pilih 2 jawaban) :

123.45.6.1

123.45.67.1

123.45.0.100

123.45.67.100

The host with IP address 123.45.6.78 and default gateway 123.45.6.87 is on the same network as the PCs with IP addresses 123.45.6.1 and 123.45.0.100. This is because the first three octets (123.45.6) of the host's IP address, default gateway, and the two given PC IP addresses are the same. This indicates that they are all part of the same network. The other two PC IP addresses (123.45.67.1 and 123.45.67.100) have a different third octet, which means they are on a different network.

Explanation

The host with IP address 123.45.6.78 and default gateway 123.45.6.87 is on the same network as the PCs with IP addresses 123.45.6.1 and 123.45.0.100. This is because the first three octets (123.45.6) of the host's IP address, default gateway, and the two given PC IP addresses are the same. This indicates that they are all part of the same network. The other two PC IP addresses (123.45.67.1 and 123.45.67.100) have a different third octet, which means they are on a different network.

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11. Jika anda sedang mengkonfigurasi IP Address interface suatu router, maka IP Address yang dapat digunakan untuk interface router dimaksud adalah (pilih 2 jawaban) :

100.100.100.64/26

100.100.100.127/26

100.100.100.223/26

100.100.100.190/26

The given IP addresses are in the range of 100.100.100.64/26, 100.100.100.127/26, 100.100.100.223/26, and 100.100.100.190/26. A /26 subnet mask allows for 64 IP addresses, with 62 usable addresses for hosts. The IP addresses 100.100.100.223/26 and 100.100.100.190/26 fall within this range and can be used for router interfaces.

Explanation

The given IP addresses are in the range of 100.100.100.64/26, 100.100.100.127/26, 100.100.100.223/26, and 100.100.100.190/26. A /26 subnet mask allows for 64 IP addresses, with 62 usable addresses for hosts. The IP addresses 100.100.100.223/26 and 100.100.100.190/26 fall within this range and can be used for router interfaces.

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