Contents of this article
In this article, I describe some CCNA 200-301 sample questions for practice before appearing in the CCNA 200-301 exam. The following questions are basic questions and related to the CCNA 200-301 sample questions set 43. There are multiple sample questions set on this website for prior practice online. All questions are described with relevant answers. You can take the following questions and answer as reference for CCNA 200-301 exam. You may also need to do more practice with other websites and books to practice the CCNA 200-301 sample questions set 43.
Question 1. What is a Class A network?
In the context of IPv4 addressing, a Class A network is one of the three traditional address classes used to assign IP addresses to devices on the internet. Class A networks are characterized by their first octet (8 bits) being used to identify the network portion of the IP address, while the remaining three octets (24 bits) are used to identify individual devices within the network.
The format of a Class A IP address is as follows:
| Network | Host |
|———|—————–|
| NNNNNNN | HHHHHHHH.HHHHHHHH|
The first bit of a Class A address is always 0, which means that the range of possible Class A network addresses is from 0.0.0.0 to 127.255.255.255. However, the address range from 0.0.0.0 to 127.255.255.255 is reserved for special purposes and not used for public internet addressing. Therefore, the valid range for Class A networks available for public use is from 1.0.0.0 to 126.255.255.255.
Each Class A network can accommodate a massive number of devices (over 16 million) because the 24 bits allocated for host addresses provide a vast range of unique addresses within each network.
Example of a Class A network:
Let’s say a company has been assigned a Class A network with the network address 10.0.0.0. In this case, the company can use IP addresses from 10.0.0.1 to 10.255.255.254 for its devices. Some possible IP addresses assigned to devices within this network are:
– Router: 10.0.0.1
– Server 1: 10.0.0.2
– Printer: 10.0.0.3
– Computer 1: 10.0.0.4
– Computer 2: 10.0.0.5
These devices would be part of the same Class A network (10.0.0.0), but they would have unique host addresses to differentiate them within that network.
Class A networks are most commonly used by large organizations, universities, or internet service providers (ISPs) with a significant number of connected devices, as they offer an extensive address space for numerous hosts within the network. However, with the depletion of IPv4 addresses, Class A networks have become scarce, and network administrators often use more efficient addressing techniques like subnetting to manage address allocation effectively. This is the answer to question 1 of CCNA 200-301 sample questions set 43.
Question 2: What is a Class B network?
In the context of IPv4 addressing, a Class B network is one of the three traditional address classes used to assign IP addresses to devices on the internet. Class B networks are characterized by the first two octets (16 bits) being used to identify the network portion of the IP address, while the remaining two octets (16 bits) are used to identify individual devices within the network.
The format of a Class B IP address is as follows:
| Network | Host |
|———|——————-|
| NNNNNNNN | NNNNNNNN.HHHHHHHH|
The first two bits of a Class B address are always 10, which means that the range of possible Class B network addresses is from 128.0.0.0 to 191.255.255.255.
Each Class B network can accommodate a large number of devices (over 65,000) because the 16 bits allocated for host addresses provide a significant range of unique addresses within each network.
Example of a Class B network:
Let’s say a company has been assigned a Class B network with the network address 172.16.0.0. In this case, the company can use IP addresses from 172.16.0.1 to 172.16.255.254 for its devices. Some possible IP addresses assigned to devices within this network are:
– Router: 172.16.0.1
– Server 1: 172.16.0.2
– Printer: 172.16.0.3
– Computer 1: 172.16.0.4
– Computer 2: 172.16.0.5
These devices would be part of the same Class B network (172.16.0.0), but they would have unique host addresses to differentiate them within that network.
Class B networks are commonly used by medium-sized organizations or companies that require a substantial number of IP addresses but do not need the vast address space provided by Class A networks. Class B addresses strike a balance between address availability and efficient address allocation.
As with all IPv4 address classes, the availability of Class B addresses has become limited due to the depletion of IPv4 addresses worldwide. IPv6, with its significantly larger address space, has become increasingly important to address the growing number of connected devices on the internet. This is the answer to question 2 of CCNA 200-301 sample questions set 43.
Question 3: What is a Class C network?
In networking, Class C refers to a specific range of IP addresses that are used for smaller networks. Class C networks are one of the three primary classes defined by the traditional IP addressing system, known as IPv4 (Internet Protocol version 4). These classes are Class A, Class B, and Class C.
Class C networks have the following characteristics:
1. IP Address Range:
The IP addresses in a Class C network are identified by having the first three octets (the first 24 bits) used for network identification and the last octet (8 bits) reserved for host addresses. The range of IP addresses in a Class C network is from 192.0.0.0 to 223.255.255.255.
2. Number of Hosts:
Since only 8 bits are available for host addresses, a Class C network can accommodate up to 256 (2^8) unique host addresses, with two addresses reserved for network identification and broadcast.
3. Example: An example of a Class C network is 192.168.0.0, where the first three octets (192.168.0) represent the network ID, and the fourth octet is available to assign individual host addresses ranging from 1 to 254 (192.168.0.1 to 192.168.0.254). The address 192.168.0.0 is used to refer to the entire network, and 192.168.0.255 is reserved for broadcast messages.
Class C networks are commonly used for small to medium-sized businesses, home networks, or in situations where the number of devices on the network is relatively limited. With the growth of the internet and the depletion of IPv4 addresses, new practices like Network Address Translation (NAT) and the adoption of IPv6 have become more prevalent. IPv6 uses a different addressing scheme to provide a significantly larger pool of IP addresses to accommodate the increasing number of internet-connected devices. This is the answer to question 3 of CCNA 200-301 sample questions set 43.
Question 4: What is a Class D network?
In networking, Class D refers to a specific range of IP addresses that are reserved for multicast group communication. Class D is one of the five classes defined by the traditional IP addressing system, known as IPv4 (Internet Protocol version 4). These classes are Class A, Class B, Class C, Class D, and Class E.
Class D networks have the following characteristics:
1. IP Address Range:
The IP addresses in a Class D network are identified by having the first four bits set to “1110,” which corresponds to the range from 224.0.0.0 to 239.255.255.255.
2. Multicast Addresses:
Class D addresses are designated for multicast communication. Multicast allows the same data to be sent to multiple recipients simultaneously. Devices interested in receiving the multicast traffic join a specific multicast group by subscribing to the corresponding Class D address.
3. Examples: Some well-known examples of Class D multicast addresses are:
– 224.0.0.1: All hosts on the local network segment (Local Network Control Block).
– 224.0.0.2: All routers on the local network segment (Local Network Control Block).
– 239.255.255.250: Simple Service Discovery Protocol (SSDP) used in UPnP (Universal Plug and Play) for device discovery.
Class D addresses are used for specific purposes like streaming media, video conferencing, online gaming, and other applications that require efficient one-to-many communication. Multicast helps reduce network traffic and resource utilization since data is sent only to those devices that have subscribed to a particular multicast group. It is important to note that Class D addresses are not used for individual device identification or general point-to-point communication, which are handled by Class A, B, and C addresses. This is the answer to question 4 of CCNA 200-301 sample questions set 43.
Question 5: What is a Class E network?
In networking, Class E refers to a specific range of IP addresses that were reserved for experimental or future use. Class E is one of the five classes defined by the traditional IP addressing system, known as IPv4 (Internet Protocol version 4). These classes are Class A, Class B, Class C, Class D, and Class E.
Class E networks have the following characteristics:
1. IP Address Range:
The IP addresses in a Class E network are identified by having the first four bits set to “1111,” which corresponds to the range from 240.0.0.0 to 255.255.255.255.
2. Reserved for Experimental Use:
Class E addresses were originally reserved for experimental and research purposes. However, in practice, they have never been allocated for public or general use on the internet.
3. Example: There are no well-known or widely used examples of Class E addresses because they have not been assigned for regular communication.
It’s important to note that the Class E address range is not intended for typical networking or internet usage. The majority of IP addresses used on the internet fall into Class A, B, or C ranges. Additionally, the rapid depletion of IPv4 addresses led to the adoption of IPv6 (Internet Protocol version 6), which offers a much larger address space to accommodate the growing number of internet-connected devices. IPv6 does not use classful addressing like IPv4, making the concepts of Class A, B, C, D, and E networks obsolete in the context of IPv6. This is the answer to question 5 of CCNA 200-301 sample questions set 43.
Conclusion for CCNA 200-301 sample questions set 43
In this article, I described 5 questions with answers related to CCNA 200-301 exam. I hope you found these questions helpful for the practice of the CCNA 200-301 exam. You may drop a comment below or contact us for any queries related to the above questions and answers for CCNA 200-301. Share the above questions If you found them useful. Happy reading!!
