Network Addressing and Subnetting: Master IP Addressing and Subnetting

Question 1

Identify the subnet mask that corresponds to a prefix length of 24 for an IPv4 address.

Accepted Answer

255.255.255.0

Answer

255.255.255.128

Answer

255.255.255.224

Answer

255.255.240.0

Question 2

Which of the following is a valid IPv4 address?

Accepted Answer

192.168.0.255

Answer

2001:0db8:85a3:0000:0000:8a2e:0370:7334

Answer

FE80::200:5EFE:6C4D:789A

Answer

255.255.255.256

Question 3

What is the primary function of a default gateway on a network?

Accepted Answer

To provide a path for packets to reach external networks

Answer

To translate IP addresses into MAC addresses

Answer

To store routing information for the network

Answer

To control access to the network by enforcing security policies

Question 4

Which of the following protocols is used to assign IP addresses dynamically to devices on a network?

Accepted Answer

DHCP

Answer

Static assignment

Answer

ARP

Answer

NAT

Question 5

What is the primary purpose of using a subnet mask?

Accepted Answer

To determine which portion of an IP address represents the network and which represents the host

Answer

To determine the subnet ID of an IP address

Answer

To specify the number of subnets within a larger network

Answer

To assign specific IP addresses to individual hosts

Question 6

Which of the following is NOT an advantage of implementing subnetting in a network?

Accepted Answer

Increased complexity due to the need for additional configuration and maintenance

Answer

Improved network performance by reducing broadcast traffic

Answer

Enhanced security by isolating network segments

Answer

Simplified network management

Question 7

In IPv6, a prefix length of /64 corresponds to how many bits?

Accepted Answer

64

Answer

16

Answer

32

Answer

128

Question 8

How does subnetting contribute to effective network security?

Accepted Answer

By isolating network segments, subnetting helps contain security breaches and minimize their impact.

Answer

Subnetting does not directly enhance network capacity by providing additional IP addresses.

Answer

While subnetting can simplify IP address allocation, it is not its primary purpose in relation to network security.

Question 9

What is a potential drawback of using Variable-Length Subnet Masks (VLSM)?

Accepted Answer

Increased complexity in network management

Answer

Efficient use of IP addresses

Answer

Enhanced network performance

Answer

Improved network security

Question 10

Which of the following is a valid IPv4 address?

Accepted Answer

192.168.0.1

Answer

192.168.0.256

Answer

192.168.255.255

Answer

192.168.10.0/24

Question 11

What is the subnet mask for an IPv4 network with a prefix length of 24?

Accepted Answer

255.255.255.0

Answer

255.255.255.255

Answer

255.255.0.0

Answer

255.0.0.0

Question 12

Which of the following subnetting methods divides the network into variable-sized subnets?

Accepted Answer

Variable Length Subnet Masking (VLSM)

Answer

Classful Subnetting

Answer

Classless Subnetting

Answer

Network Address Translation (NAT)

Question 13

Which of the following tools is used to calculate subnet information?

Accepted Answer

IP Calculator

Answer

Ping

Answer

Traceroute

Answer

Network Scanner

Question 14

What is the default gateway for a subnet with an IP address of 192.168.1.0/24?

Accepted Answer

192.168.1.1

Answer

192.168.1.255

Answer

192.168.0.1

Answer

255.255.255.255

Question 15

Which of the following subnets is valid for an IPv6 network with a prefix length of 64?

Accepted Answer

2001:0db8:85a3:08d3:1319:8a2e:0370:7334/64

Answer

2001:0db8:85a3:08d3:1319:8a2e:0370/64

Answer

2001:0db8:85a3:08d3:1319:8a2e:0370:7334

Answer

2001:0db8:85a3:08d3::7334/64

Question 16

Which of the following protocols is used for dynamic host configuration?

Accepted Answer

DHCP

Answer

DNS

Answer

HTTP

Answer

FTP

Question 17

What is the purpose of a routing table?

Accepted Answer

To store information about the best path to a destination network

Answer

To translate domain names to IP addresses

Answer

To manage the flow of data between networks

Answer

To provide security for a network

Question 18

Which subnetting method allows for creating subnets of varying sizes, minimizing wasted network space?

Accepted Answer

Variable-Length Subnet Masks (VLSM)

Answer

Classful Addressing

Answer

Classless Addressing

Answer

Subnet Zero

Question 19

What is the primary purpose of subnet masking?

Accepted Answer

To divide a network into smaller, logical networks known as subnets

Answer

To determine the number of hosts within a subnet

Answer

To improve network performance

Answer

To enhance network security

Question 20

Given the subnet 192.168.1.0/24, identify its network address:

Accepted Answer

192.168.1.0

Answer

192.168.1.1

Answer

192.168.1.255

Answer

192.168.0.0

Question 21

Which of the following is a potential disadvantage of Variable-Length Subnet Masks (VLSM)?

Accepted Answer

Compatibility with all devices

Answer

Efficient use of IP address space

Answer

Simplified network management

Answer

Increased network performance

Question 22

Which of the following is **NOT** a valid IP address class?

Accepted Answer

Class E

Answer

Class C

Answer

Class B

Answer

Class A

Question 23

Which of the following is **NOT** a benefit of subnetting?

Accepted Answer

Increased network bandwidth

Answer

Reduced network latency

Answer

Improved network security

Question 24

Which of the following commands is used to display the routing table on a Cisco router that uses the IOS operating system?

Accepted Answer

show ip route

Answer

show arp

Answer

traceroute

Answer

ping

Question 25

What is the primary purpose of the default gateway in a network?

Accepted Answer

To route traffic to destinations outside the local subnet

Answer

To filter incoming traffic

Answer

To provide DHCP services

Question 26

Which of the following is a valid IPv6 address?

Accepted Answer

2001:0db8:0000:0000:0000:ff00:0042:8329

Answer

192.168.0.1

Answer

10.0.0.1

Question 27

What is the primary purpose of a network interface card (NIC)?

Accepted Answer

To connect a computer to a network

Answer

To process data

Answer

To provide power to the computer

Answer

To store data

Question 28

Which of the following is an invalid IPv4 address?

Accepted Answer

10.0.0.256

Answer

192.168.1.1

Answer

255.255.255.255

Answer

0.0.0.0

Question 29

Which of the following options is a valid IPv4 address?

Accepted Answer

192.168.1.1

Answer

300.0.0.1

Answer

127.0.0.256

Answer

-1.0.0.1

Question 30

Which subnetting technique is used to divide a network into subnetworks of unequal sizes?

Accepted Answer

Variable Length Subnet Masking (VLSM)

Answer

Supernetting

Answer

Subnet Zero

Answer

Classful Subnetting

Question 31

What is the main purpose of Network Address Translation (NAT)?

Accepted Answer

To enable multiple devices on a private network to share a single public IP address

Answer

To provide secure remote access to a network

Answer

To improve network performance by caching frequently accessed data

Question 32

Which command can be used on a Windows system to display the routing table?

Accepted Answer

route print

Answer

netstat -r

Answer

tracert

Answer

ipconfig

Question 33

What is the function of a default gateway in a network?

Accepted Answer

It is the router that is responsible for forwarding traffic to and from the network.

Answer

It is the central point of failure in a network.

Answer

It is the device that assigns IP addresses to hosts on the network.

Question 34

What is a key benefit of using a Network Management System (NMS)?

Accepted Answer

It provides a centralized platform for monitoring and managing network devices.

Answer

It reduces the need for skilled network administrators.

Answer

It eliminates the possibility of network outages.

Question 35

What is the primary function of the Domain Name System (DNS)?

Accepted Answer

To translate human-readable domain names into numerical IP addresses.

Answer

To provide email services for users on the network.

Answer

To manage and update network configurations.

Answer

To protect the network from cyber threats.

Question 36

What is the subnet mask for a network with a /24 prefix length?

Accepted Answer

255.255.255.0

Answer

192.168.1.1

Answer

255.255.0.0

Answer

255.0.0.0

Question 37

Which of the following is a valid IPv6 address?

Accepted Answer

2001:db8:85a3:08d3:1319:8a2e:0370:7334

Answer

300.200.100.50

Answer

255.255.255.0

Answer

192.168.0.1

Question 38

What is the prefix length of the network 192.168.1.0/24?

Accepted Answer

24

Answer

16

Answer

32

Question 39

Which of the following tools can be used to perform subnetting calculations?

Accepted Answer

Subnet Calculator

Answer

Traceroute

Answer

Ping Tester

Question 40

What is the primary function of a default gateway?

Accepted Answer

To route traffic to other networks

Answer

To provide DNS services

Answer

To filter incoming traffic

Answer

To translate IP addresses

Question 41

What is the default subnet mask for a Class B network?

Accepted Answer

255.255.0.0

Answer

255.255.255.255

Answer

255.255.255.0

Answer

255.0.0.0

Question 42

What is the primary purpose of subnetting?

Accepted Answer

To divide a network into smaller logical segments.

Answer

To enhance network security.

Answer

To improve network performance.

Answer

To increase the number of available IP addresses.

Question 43

Which of the following subnet masks represents a /24 network?

Accepted Answer

255.255.255.0

Answer

255.255.255.224

Answer

255.255.255.192

Answer

255.255.255.128

Question 44

Which of the following commands can be used to calculate the number of usable hosts on a subnet?

Accepted Answer

ipcalc -h <CIDR notation>

Answer

ping -c <number of packets> <IP address>

Answer

netstat -rn

Answer

traceroute <IP address>

Question 45

What is the process of breaking up a large network into smaller networks called?

Accepted Answer

Subnetting

Answer

Segmentation

Answer

Aggregation

Answer

Routing

Question 46

Which of the following is a benefit of using VLSM (Variable Length Subnet Mask)?

Accepted Answer

Efficient use of IP addresses.

Answer

Enhanced network security.

Answer

Reduced network congestion.

Answer

Simplified network administration.

Question 47

What is the difference between a unicast and a broadcast address?

Accepted Answer

Unicast addresses identify a single host, while broadcast addresses identify all hosts on a network.

Answer

Unicast addresses are temporary, while broadcast addresses are permanent.

Answer

Unicast addresses are used for communication between two hosts, while broadcast addresses are used for communication between a host and a network.

Question 48

What is the purpose of a gateway address?

Accepted Answer

To provide a path for communication between different networks.

Answer

To filter incoming traffic based on security rules.

Answer

To assign IP addresses to hosts on a network.

Question 49

Which of the following is the maximum number of hosts that can be supported by a /24 subnet?

Accepted Answer

254

Answer

512

Answer

128

Answer

1024

Question 50

What is the purpose of a default gateway?

Accepted Answer

To forward traffic to a different network

Answer

To filter incoming traffic

Answer

To assign IP addresses to hosts

Answer

To provide DNS services

Question 51

Which of the following is NOT a valid IPv4 address?

Accepted Answer

192.0.0.256

Answer

10.0.0.1

Answer

255.255.255.0

Answer

172.16.0.0

Question 52

What is the process of dividing a network into smaller subnetworks called?

Accepted Answer

Subnetting

Answer

Bridging

Answer

Supernetting

Answer

Routing

Question 53

What is the subnet mask for a /26 network?

Accepted Answer

255.255.255.192

Answer

255.255.255.128

Answer

255.255.255.0

Answer

255.255.0.0

Question 54

What is the network address of a host with the IP address 192.168.10.10 and a subnet mask of 255.255.255.240?

Accepted Answer

192.168.10.0

Answer

192.168.10.255

Answer

192.168.10.10

Answer

192.168.10.16

Question 55

What is the broadcast address of a network with the IP address 172.16.1.0 and a subnet mask of 255.255.255.248?

Accepted Answer

172.16.1.7

Answer

172.16.1.0

Answer

172.16.0.0

Answer

172.16.1.255

Question 56

Which of the following tools can be used to perform subnetting calculations?

Accepted Answer

Subnet Calculator

Answer

Wireshark

Answer

Traceroute

Answer

Ping

Question 57

What is the difference between public and private IP addresses?

Accepted Answer

Public IP addresses are routable on the Internet, while private IP addresses are not

Answer

Public IP addresses are used for servers, while private IP addresses are used for clients

Answer

Public IP addresses are assigned by ISPs, while private IP addresses are assigned by network administrators