Chapter 8 Homework

On a network, which mask should you use on point-to-point WAN links in order to reduce the waste of IP addresses?

/30

You have an interface on a router with the IP address of 192.168.192.10/29. What is the broadcast address the hosts will use on this LAN?

192.168.192.15

Given the IP address 192.44.55.222 /29 Which of the following is the subnetwork address for this IP address?

192.44.55.216

You have an interface on a router with the IP address of 192.168.192.10/29 How many hosts can have IP addresses on the LAN attached to the router interface?

6 Hosts

Given the IP address 147.99.17.227 /10 What is the increment?

64

The network address of 172.16.0.0/19 provides how many subnets and hosts?

8 Subnets, 8,190 Hosts each

What is the subnetwork address for a host with the IP address 200.10.5.68/28? A. 200.10.5.56 B. 200.10.5.32 C. 200.10.5.64 D. 200.10.5.0

C. 200.10.5.64

When configuring the IP settings on a computer on one subnet to ensure that it can communicate with a computer on another subject, what is the best way to proceed?

Configure the computer with a default gateway that matches the IP address of the interface of the router that is attached to the same subnet as the computer

What is the highest usable address on the 172.16.1.0/24 network?

172.16.1.254

If an Ethernet interface on a router was assigned the IP address 172.16.96.1 /20, input the last usable IP address for this subnet?

172.16.111.254

If an Ethernet port on a router was assigned an IP address of 172.16.112.1/25, what would be the subnet address of this host?

172.16.112.0

If an Ethernet interface on a router was assigned the IP address 172.16.112.1/20, what is the last usable IPv4 address for this subnet.

172.16.127.254

You have a network with a subnet of 172.16.17.0/22 Which of the following is a valid host?

172.16.18.255 255.255.252.0

Your router has the following IP address on Ethernet0: 172.16.2.1/23. What is a valid host ID on the LAN interface attached to the router?

172.16.2.255 & 172.16.3.0

If a host on a network has the addres 172.16.45.14/30 What is the subnetwork this host belongs to?

172.16.45.12

Given the following IP Address 191.192.200.41 / 22 What is the Broadcast address for this subnet?

191.192.203.255

What would be the IP address of E0 if you were using the 8th subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range.

192.168.10.142

What would be the IP address of E0 if you were using the first subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range.

192.168.10.30

Given the IP address 192.44.55.123 / 14 What is the subnet mask?

255.252.0.0

Given the IPv4 address 101.202.144.171 / 15 What is the subnet mask?

255.254.0.0

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

30 IP Addresses

Which two of the following are true of the 191.244.37.111 address given the subnet mask 255.255.254.0 ? A. This is a Class B address B. This subnet is using a 23 bit mask C. The network address for this subnet is 191.244.37.0 D. This is a Class C address E. This is a broadcast address F. The broadcast address for this subnet is 191.244.39.255

A, B This is a Class B address This subnet is using a 23 bit mask

A network administrator is connecting two hosts directly through their Ethernet interfaces. Ping attempts between the hosts are unsuccessful. What can be done to provide connectivity between the hosts? (Choose two) A. Crossover cable should be used in place of the straight-through cable B. Rollover cable should be used in place of the straight-through cable C. The subnet masks should be set to 255.255.255.192 D. A default gateway needs to be set on each host E. The subnet masks should be set to 255.255.255.0

A, E; Crossover cable should be used in place of the straight-through cable---The subnet masks should be set to 255.255.255.0

A network admin has subnetted the major network 150.88.0.0 /26. A duplicate IP address of 150.88.3.125 was accidentally configured on a PC in the network. The network technician must assign this PC a new IP address within the same subnet. Which IP address should be assigned to the PC? A. 150.88.3.77 B. 150.88.3.200 C. 150.88.3.150 D. 150.88.3.130 E. 150.88.3.140 F. 150.88.3.63 G. 150.88.3.127

A. 150.88.3.77

A network admin has subnetted the major network 188.33.0.0 /26. A duplicate IP address of 188.33.3.125 was accidentally configured on a PC in the network. The network technician must assign this PC a new IP address within the same subnet. Which IP address should be assigned to the PC? A. 188.33.3.77 B. 188.33.3.63 C. 188.33.3.127 D. 188.33.3.140 E. 188.33.3.130 F. 188.33.3.50 G. 188.33.3.129

A. 188.33.3.77

Given the IP address 192.149.7.94 /26 How many subnets have been created? A. 2 B. 3 C. 4 D. 6 E. 8

C. Four

Using the subnet mask 255.255.240.0 which two of the following are "non-usable" broadcast IP addresses? A. 172.16.0.255 B. 172.16.16.255 C. 172.16.88.255 D. 172.16.197.255 E. 172.16.143.255 F. 172.16.175.255

E, F; 172.16.143.255 172.16.175.255

A network admin has subnetted the major network 172.16.0.0 using a subnet mask of 255.255.255.128. A duplicate IP address of 172.16.2.150 was accidentally configured on a PC in the network. The network technician must assign this PC a new IP address within the same subnet. Which IP address should be assigned to the PC? A. 172.16.1.99 B. 172.16.2.99 C. 172.16.3.99 D. 172.16.1.199 E. 172.16.1.254 F. 172.16.2.254

F. 172.16.2.254

You receive a call from a user who is complaining that they cannot get on the Internet. You have them verify their IP address, mask, and default gateway. The IP address is 10.0.37.144 The Subnet Mask is 255.255.254.0 The Default Gateway is 10.0.38.1 What is the problem?

Incorrect gateway IP

Given the IP address of 101.202.68.177 and subnet mask of 255.128.0.0 What is the increment?

Increment 128

Given the IP address 101.202.144.171 and subnet mask of 255.224.0.0. What is the increment value?

Increment 32

You have one IP address provided from your ISP with a /30 mask. However, you have 300 users that need to access the Internet. What technology will you use to implement a solution?

PAT

What device are you most likely to be able to implement NAT?

Router

You have a Class A host of 10.0.0.110/25 It needs to communicate to a host with an IP address of 10.0.0.210/25. What device do you need to use in order for these hosts to communicate?

Router

If you are forced to replace a router that has failed to the point that you are unable to access the current configuration to aid in setting up interface addresses on the new router, what can you reference for assistance?

The default gateway settings on computers from each subnet that the old router interconnected