Aruba Certified Mobility Associate (ACMA) Interview Questions

While some interviewers have their own method of questioning, the majority of job interviews follow a set of questions and responses (including some of the most often-asked behavioral interview questions). Here are some of the most common interview questions, as well as some of the best answers. Consider the following expert interview preparation ideas for the Aruba Certified Mobility Associate (ACMA):

1. What exactly is the DHCP Protocol in Aruba Certified Mobility Associate (ACMA)?

The Dynamic Host Configuration Protocol is sometimes known as DHCP. It is an application layer protocol that allows devices on IP networks to automatically configure themselves to use TCP and UDP-based protocols. DHCP servers assign IP addresses and other network parameters to specific devices, allowing them to communicate over an IP network. It assists in obtaining the subnet mask, IP address, and DNS resolution. It defaults to port 67.

2. What is the ARP protocol, exactly in Aruba Certified Mobility Associate (ACMA)?

The ARP protocol stands for Address Resolution Protocol. It’s a network-level protocol that converts a device’s logical address (IP address) to its physical address (MAC address). It can also be use to obtain a device’s MAC address while it is attempting to interact over a local network.

3.What is the FTP protocol, exactly in Aruba Certified Mobility Associate (ACMA)?

The FTP protocol stands for File Transfer Protocol. It’s an application layer protocol for reliably and effectively transferring files and data between hosts. It can also be use to download files to your computer from remote servers. By default, it utilises port 27.

4. What is a MAC address and how does it relate to a network interface card?

The Media Access Control address is referred to as the MAC address. It is a 48-bit or 64-bit unique identification for network devices. It’s also known as the physical address associate with the Data Link Layer’s Network Interface Card (NIC). A network interface card (NIC) is a hardware component in a networking device that allows a device to connect to the network.

5. What exactly is a subnetwork in Aruba Certified Mobility Associate (ACMA)?

A subnet is a network within a network create by the subnetting process, which divides a network into subnets. It is use to improve network security while also increasing routing efficiency. The time it takes to get the host address from the routing database is reduce.

6.What is the difference between Unicasting, Anycasting, Multicasting, and Broadcasting?

• Unicasting is when a message is transmitted from a single source to a single node. This is a frequent method for establishing a new connection in networks.
• Anycasting occurs when a message is sent from the source to any of the nodes. It is mostly use to obtain content from any of the Content Delivery System’s servers.
• Multicasting occurs when a message is broadcast to a subset of nodes from a single source. Used to communicate the same material to several recipients at the same time.
• Broadcasting occurs when a message is conveyed from a source to all nodes in a network. In a local network, broadcasting is use by DHCP and ARP.

7. When you type google.com into your browser, what happens in Aruba Certified Mobility Associate (ACMA)?

The following are the steps that are being taken:

• If the content is fresh and present in the cache, check the browser cache first.
• If the IP address of the URL is not found in the cache (browser and OS), the browser will request the OS to perform a DNS search using UDP to obtain the appropriate IP address of the URL from the DNS server, and a new TCP connection will be establish.
• Three-way handshaking establishes a new TCP connection between the browser and the server.
• The TCP connection is use to send an HTTP request to the server.
• The web servers on the Servers process HTTP requests and respond with HTTP responses.
• The browser decodes the server’s HTTP answer and decides whether to close or reuse the TCP connection for future requests.
• If the data in the response is cacheable, browsers will save it.
• The content is render after the browser decodes the answer.

8.What is the Domain Name System in Aruba Certified Mobility Associate (ACMA)?

The Domain Name System stands for Domain Name System. It is regard as the Internet’s device/services directory. It is a hierarchical and decentralised naming system for Internet-connected objects and services. The domain names are translate into IP addresses. For example, send 172.217.166.36 to interviewbit.com. By default, it utilises port 53.

9. What is a router’s purpose and how does it vary from a gateway in Aruba Certified Mobility Associate (ACMA)?

A router is a networking device that joins two or more network segments together. It controls network traffic flow. It sends packets of information and data from the source to the destination, such as web pages, emails, photos, and videos. Next, it is a network layer application. Gateways are likewise use to route and regulate network traffic, but unlike routers, they can transport data across two distinct networks.

10. What is the difference between the HTTP and HTTPS protocols?

The HyperText Transfer Protocol (HTTP) is a set of rules and standards that govern how information is sent over the Internet (WWW). It facilitates communication between web browsers and web servers. It’s a’stateless protocol,’ meaning that each instruction is unrelated to the one before it. TCP provides the foundation for HTTP, which is an application layer protocol. It defaults to port 80.

Secure HTTP is the HyperText Transfer Protocol Secure. It’s a more sophisticated and secure version of HTTP. SSL/TLS protocol is use to offer security on top of HTTP. It enables secure transactions by encrypting communication and also assists in the secure identification of network servers.

11. What is the SMTP protocol, exactly in Aruba Certified Mobility Associate (ACMA)?

The SMTP protocol stands for Simple Mail Transfer Protocol. SMTP establishes the rules for server communication. This set of guidelines assists the software in sending emails via the internet. End-to-end and Store-and-Forward techniques are both supported. On port 25, it is in always-listening mode.

12. Explain what the TCP/IP Reference Model is.

With only four levels, it is a compressed version of the OSI model. The US Department of Defense (DoD) created it in the 1980s. The name of this architecture is derive from the employment of two common protocols, TCP (Transmission Control Protocol) and IP (Internet Protocol) (Internet Protocol).

13. Explain what the OSI Reference Model is.

The Open System Interconnections (OSI) model is an ISO-based network architectural model. The OSI model is name for the fact that it deals with linking systems that are open to communication with others.

There are seven layers in the OSI model. The following are the principles that were use to arrive at the seven layers:

• If a different abstraction is require, create a new layer.
• Each layer should have a distinct purpose.
• Each layer’s function is determine by internationally agreed protocols.