Ch. 11 Perspectives On IPv4 Subnetting

Question 0

PPDIOO

Answer 0

Prepare, plan, design, implement, operate, and optimize

Question 1

Subdivided network

Answer 1

Subnet

Question 2

Addresses in the same subnet are not separated by a _____

Answer 2

Router

Question 3

Addresses in different subnets are separated by at least one _____

Answer 3

Router

Question 4

PVC

Answer 4

Permanent virtual circuits

Question 5

You should use one subnet for every:

Answer 5

VLAN, point to point serial link, Ethernet emulation WAN link (EoMLPS), frame relay PVC

Question 6

Every device that connects to a subnet needs a ___ addresss

Answer 6

IP address

Question 7

A subnets size, or length, is simply the number of usable ____ addresses in the subnet.

Answer 7

IP

Question 8

The subnet _____ defines the size of the subnet among other things

Answer 8

Mask

Question 9

The subnet mask sets aside a number of ____ _____ whose purpose is to number different host IP addresses in that subnet

Answer 9

Host bits

Question 10

You can number 2^H things with H____

Answer 10

Bits

Question 11

A subnet’s size is 2^H - 2 (where H is the number of host bits) because each subnet reserves the numerically _____ and _____ values

Answer 11

Lowest and highest

Question 12

The subnet reserves the lowest numerical value for the subnet ______

Answer 12

Number

Question 13

The subnet reserves the numerically highest value as the subnet ______ ______

Answer 13

Broadcast address

Question 14

The term subnet number, subnet ID, and subnet address all refer to the number that represents or identifies a ______

Answer 14

Subnet

Question 15

To choose to use a single size subnet in an enterprise network, you must use the same ____ for all subnets, because it defines the size of the subnet

Answer 15

Mask

Question 16

One requirement when choosing a subnet _____ is this: that one choice must provide enough host IP addresses to support the largest subnet

Answer 16

Mask

Question 17

The number of ____ ____ (H) defined by the mask must be large enough so that 2^H - 2 is larger than (or equal to) the number of host IP addresses required in the largest subnet

Answer 17

Host bits

Question 18

The biggest disadvantage for using a single size subnet is that it wastes ____ addresses

Answer 18

IP

Question 19

All subnets will be based on the formula _____

Answer 19

2^H - 2

Question 20

VLSM

Answer 20

Variable length subnet masks

Question 21

The original design of the internet require any company that connected to the internet had to use a ____ ___ IP network

Answer 21

Registered public

Question 22

____ IP networks ensure that all the companies that connect to the internet all use unique IP addresses

Answer 22

Public

Question 23

NAT

Answer 23

Network address translation

Question 24

____ allows multiple companies to use the exact same private IP network

Answer 24

NAT (network address translation)

Question 25

____ IP networks will never be assigned to an organization as a public IP network

Answer 25

Private

Question 26

____ can be used by organizations that will use NAT when sending packets into the internet

Answer 26

Private

Question 27

_____ IP networks can be used by organizations that never need to send packets into the internet

Answer 27

Private

Question 28

Before an engineer divides a classful network into smaller networks, the network is a single group of addresses, breaking them down into smaller groups is converting them into ____

Answer 28

Subnets

Question 29

The size of an ______ Class A, B, or C network is as follows: Class A: 2^24 - 2 = 16,777,214 Class B: 2^16 - 2 = 65,534 Class C: 2^8 - 2 = 254

Answer 29

Unsubnetted

Question 30

An engineer cannot change the size of a network part or the size of the entire address which is ____ bits

Answer 30

32

Question 31

The number of _____ bits must be large enough to uniquely number all the subnets.

Answer 31

Subnet

Question 32

The subnet mask is a ____ bit binary number

Answer 32

32

Question 33

A ____ consists of a group of consecutive numbers

Answer 33

Subnet

Question 34

Subnet ____ also called the subnet ID or subnet address, this number identifies the subnet. It is the numerically smallest number in the subnet. It cannot be used as an IP address by a host

Answer 34

Number

Question 35

Subnet ____ also called the subnet broadcast address or directed broadcast address, this is the last number (numerically highest) number in the subnet. It also cannot be used as an IP address

Answer 35

Broadcast

Question 36

____ addresses is all the numbers between the subnet ID and the subnet broadcast that can be used as an host IP addresses

Answer 36

IP

Question 37

Devices receive their IP address and mask assignment in one of two ways, dynamically by using _____ or statically trough configuration

Answer 37

DHCP

Question 38

Host A is a pc connected to switch S1 and assigned to VLAN 1. Which of the following are typically assigned an IP address in the same subnet as host A (select two) The local router's WAN interface Th local router's LAN interface All other hosts attached to the same switch Other hosts attached to the same switch and also in VLAN 1

Answer 38

The local router's LAN interface | Other hosts attached to the same switch and also in VLAN 1

Question 39

What is the formula for the number of hosts per subnet (2^H-2) require the subtraction of two host To reserve two addresses for redundant default gateways To reserve the two addresses required DHCP operation To reserve addresses for the subnet ID and default gateway To reserve addresses for the subnet broadcast address and a subnet ID

Answer 39

Reserve addresses for the subnet broadcast address and subnet ID

Question 40

``` A class B network needs to be submitted such that it supports 100 subnets and 100 hosts per subnet. Which of the following answers lists a workable combination for the number of network, subnet, and host bits? (Select two answers) N = 16 S = 7 Host = 7 N = 16 S = 8 Host = 8 N = 16 S = 9 Host = 7 N = 8 S = 7 Host = 17 ```

Answer 40

``` N = 16 S = 8 Host = 8 N = 16 S = 9 Host = 7 ```

Question 41

Which of the following are private IP networks (select two answers) 172. 31.0.0 172. 32.0.0 192. 168.255.0 192. 1.168.0 11. 0.0.0

Answer 41

172. 31.0.0 | 192. 168.255.0

Question 42

Which of the following are public IP networks (select three answers) 9. 0.0.0 172. 30.0.0 192. 168.255.0 192. 1.168.0 1. 0.0.0

Answer 42

9. 0.0.0 192. 168.255.0 1. 0.0.0

Question 43

``` Before class B network 172.16.0.0 is subnetted by a network engineer, the parts of the structure of the IP addresses in this network already exist, with a specific size? (Select two answers) Network Subnet Host Broadcast ```

Answer 43

Network | Host

Question 44

``` A network engineer spends time thinking about the entire class B network 172.16.0.0, and how to subnet that network. Then chooses how to subnet this class B network and create an address and it's subnetting plan, on paper, to show his choices. If you compare his thoughts about this network before subnetting the network, to his thoughts about this network after mentally subnetting the network, which of the following occurred to the part of the structure of addresses in this network: The subnet part got smaller The host part got smaller The network park got smaller The Host part was removed The Network part was removed ```

Answer 44

The host part got smaller

Question 45

``` Which of the following terms are not used to reference the one number in each subnet used to uniquely identify the subnet (choose two answers) Subnet ID Subnet number Subnet broadcast Subnet name Subnet address ```

Answer 45

Subnet broadcast | Subnet name