Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts?（）

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• A network host is configured as follows: Host IP address: 192.168.16.183 Subnet mask: 255.255.255.224 Default gateway: 192.168.16.190 Which of the following statements describe the network to which this host is attached?（）

  A . The default gateway is configured on a different subnet form this host. B . The host is a member of the fifth usable subnet of the 192.168.16.0 network. C . The subnetwork address for this host is 192.168.16.160/28. D . The address of the next higher subnet is 192.168.16.192. E . The address of the router interface that is attached to this subnetwork is 192.168.16.190. F . There are 60 usable host addresses on this subnet.

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• The subnet mask on the serial interface of a router is expressed in binary as 11111000 for the last octet. How do you express the binary number 11111000 in decimal?（）

  A . 210 B . 224 C . 240 D . 248 E . 252

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• The 201.145.32.0 network is subnetted using a /26 mask. How many networks and IP hosts per network exists using this subnet mask?（）

  A . 4 networks with 64 hosts B . 64 networks and 4 hosts C . 2 networks and 62 hosts D . 62 networks and 2 hosts E . 6 network and 30 host

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• Identify three valid host addresses in the 192.168.27.0 network with a subnet mask of 255.255.255.240. （）

  A . 192.168.27.33 B . 192.168.27.112 C . 192.168.27.119 D . 192.168.27.126 E . 192.168.27.175 F . 192.168.27.208

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• Your ISP has assigned you the following IP address and subnet mask: IP address: 199.141.27.0 Subnet mask: 255.255.255.240 Which of the following addresses can be allocated to hosts on the resulting subnet?（）

  A . 199.141.27.2 B . 199.141.27.175 C . 199.141.27.13 D . 199.141.27.11 E . 199.141.27.208 F . 199.141.27.112

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• A network administrator provides an IP address of 128.135.0.142 and a subnet mask of 255.0.0.0.  Once a ping is attempted， it fails.  Which of the following options is the most probable cause of the failed ping？（）

  A . 0 is not valid in an IP address B . 128 is a reserved network C . The subnet mask should be 255.255.0.0. since it is a class B D . A network problem has occurred since IP and subnet are valid

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• You have a class B network with a 255.255.255.0 mask. Which of the statements below are true of this network?（）

  A . There are 254 usable subnets. B . There are 256 usable hosts per subnet. C . There are 50 usable subnets. D . There are 254 usable hosts per subnet. E . There are 24 usable hosts per subnet. F . There is one usable network.

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• How many usable sub network and usable hosts per subnet result in the network address 201.105.13.0 is sub netted with a mask of /26? （）

  A . 64 network and 4 hosts B . 4 network and 64 hosts C . 2 network and 62 hosts D . 62 network and 2 host

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• In the implementation of VLSM techniques on a network using a single Class C IP address, which subnet mask is the most efficient for point-to-point serial links（）。

  A . 255.255.255.0 B . 255.255.255.240 C . 255.255.255.248 D . 255.255.255.252 E . 255.255.255.254

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• In the implementation of VLSM techniques on a network using a single Class C IP address, which subnet  mask is the most efficient for point-to-point serial links? （）

  A . 255.255.255.0 B . 255.255.255.240 C . 255.255.255.248 D . 255.255.255.252 E . 255.255.255.254

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• Which of the following addresses can be assigned to a host when using a subnet mask of 255.255.254.0?（）

  A . 113.10.4.0 B . 186.54.3.0 C . 175.33.3.255 D . 26.35.3.255 E . 152.135.7.0 F . 17.35.36.0

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• Using a subnet mask of 255.255.255.224, which of the IP addresses below can you assign to the hosts on this subnet?（）

  A . 16.23.118.63 B . 87.45.16.159 C . 92.11.178.93 D . 134.178.18.56 E . 192.168.16.87 F . 217.168.166.192

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• A class B network 129.35 has 4 subnets and a netmask of 255.255.252.0 （11111111.11111111.11111100.00000000）. To which of the following subnets will the class B network deliver a packet of address 129.35.14.04 （10000001.00100011.00001110.00000100）？（）

  A . 129.35.12.0 B . 129.35.16.0 C . 129.35.52.0 D . 129.35.128.0

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• Which two addresses can be assigned to a host with a subnet mask of 255.255.254.0？（）

  A . 113.10.4.0 B . 186.54.3.0 C . 175.33.3.255 D . 26.35.2.255 E . 17.35.36.0

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• Which of the following routing protocols do NOT support VLSM (variable length subnet masking)?（）

  A . RIPv1 B . IGRP C . EIGRP D . OSPF E . IS-IS F . RIPv2

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• The 213.115.77.0 network was subnetted using a /28 subnet mask. How many usable subnets and host addresses per subnet were created as a result of this?（）

  A . 2 networks with 62 hosts B . 6 networks with 30 hosts C . 16 networks and 16 hosts D . 62 networks and 2 hosts E . 14 networks and 14 hosts F . None of the above

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• What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that use the 255.255.255.224 subnet mask?（）

  A . 14 B . 15 C . 16 D . 30 E . 31 F . 32

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• Which two addresses can be assigned to a host with a subnet mask of 255.255.254.0？（）

  A . 113.10.4.0 B . 186.54.3.0 C . 175.33.3.255 D . 26.35.2.255 E . 17.35.36.0

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• A Class C network address has been subnetted with a /27 mask.Which of the following addresses is a broadcast address for one of the resulting subnets?（）

  A . 201.57.78.33 B . 201.57.78.64 C . 201.57.78.97 D . 201.56.78.97 E . 201.57.78.159 F . 201.57.78.254

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• TestKing.com has allocated the IP add 199.144.27.0 is its network, to provide flexibility for the LAN design, a subnet mask of 255.255.255.240 has been chosen. Which of the following address can be assigned to LAN on the resulting subnets.（）

  A . 199.141.27.33 B . 199.141.27.112 C . 199.141.27.119 D . 199.141.27.126 E . 199.141.27.175 F . 199.141.27.208

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• Which of the following routing protocols support the use of VLSM (Variable Length Subnet Masking)?（）

  A . RIPv1 B . EIGRP C . OSPF D . IGRP E . RIPv2

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• Which of the following are true regarding a network using a subnet mask of 255.255.248.0?（）

  A . It corresponds to a Class A address with 13 bits borrowed. B . It corresponds to a Class B address with 4 bits borrowed. C . The network address of the last subnet will have 248 in the 3rd octet. D . The first 21 bits make the host portion of the address. E . This subnet mask allows for 16 total subnets to be created. F . The subnetwork numbers will be in multiples of 8.

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• A network with 27-bit subnet mask can accommodate （)hosts.

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• Subnet mask is 255.255.255.128. How many NE addresses are available in each subnet？（)

  A．64 B．126 C．124 D．62

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