CompTIA (Computing Technology Industry Association) is one of the most respected certification providers on the market. It offers the Network+ (Network Plus), certification exam. CompTIA Network+ certification has a high value in the IT industry. CompTIA Network+ certifies your ability to manage, build, and troubleshoot networks on various platforms. Network+ (Network Plus), is a entry-level certification for network technicians.
Businesses need a network engineer who is skilled, certified, and experienced in order to develop strategies to improve their business model, as well as keep up with their competitors. CompTIA Network+ certification is required for those who wish to be successful in this field.
We’ve compiled a list of the most frequently asked CompTIA Network+ interview questions to help you prepare for your job as a network engineer.
Network+ Interview Questions1. What is the OSI (Open System Interconnection Model)?
Open systems interconnection (OSI), which allows different communication systems to communicate using standard protocols, was developed by the International Organization for Standardization. It is composed of seven layers.
Data Link Layer
2. Which protocol is used to assign IP addresses automatically
DHCP (Dynamic Host Configuration Protocol) is a network management protocol that assigns IP address to computers, servers and printers. APIPA (Automatic Private IP Addressing), provides IP addresses for internal communication if our device can’t find a DHCP host server.
3. What are some open-source network tools for detecting network weaknesses?
These are the top Open-source vulnerability scanning software:
4. What is an example of Routing Protocols?
RIP (Routing Gateway protocol)
EIGRP (Enhanced Internet Gateway Routing Protocol).
OSPF (Open Shortest Path First)
EGP (External Gateway Protocol).
BGP (Border Gateway Protocol).
5. What is the Subnet Mask?
Subnet Mask is a way to separate an IP address into two parts: the Network address and host address. The subnet mask is 32 bits in length.
6. What is VPN?
VPN (Virtual Private Network), is a way to create a secure network connection for public networks. Virtual Private Network (VPN), encrypts your network traffic via a virtual tunnel, and hides your identity online. VPN makes it difficult to track your online activity.
7. What are the different ways to protect a computer network?
There are many ways to do this. Install an anti-virus program that is trustworthy and up-to-date on all computers. Make sure firewalls are properly set up and configured. It is also a good idea to use user authentication. The result is a highly secure network when all these factors are combined.
8. What number of Layers are in TCP/IP
The TCP/IP model has four layers:
Network Access/Link Layer
Transport Layer/Host to host
9. What is a MAC Address?
MAC stands for Media Access Control. It is a unique address that identifies a device within a network. It is also known as the Physical address of a device. It is assigned to every device’s Network Interface Card (NIC). The MAC address size is 48 bits.
The OUI (Organizational Unique Identifier) is the first three octets, and the EUI (Extended Unique Identifier) are three of the last three octets.
10. Which protocol is managed through TCP/IP Internet Layer
The TCP/IP internet layer manages four protocols
IGMP (Internet Group Message Protocol).
ICMP (Internet Group Management Protocol).
IP (Internet Protocol).
ARP (Address Resolution Protocol).
Get Connected with Us to Learn Network+
You have arrived at the right place if you are looking for a rewarding career in computer networking.