Network Fundamentals
This is a protocol that provides communication between network devices by translating hostnames to IP addresses.
What is DNS?
What is the process of adding protocol information to data as it moves down the protocol stack?
What is encapsulation?
How many layers are in the original TCP/IP model?
Four
What is the default administrative distance of the OSPF routing protocol?
What is 110?
This networking device operates at Layer 3 of the OSI model and forwards data between different networks based on IP addresses.
What is a router?
What is the term for a logical grouping of devices that are in different physical locations but act as if they are on the same network?
What is a VLAN?
What is the PDU (Protocol Data Unit) associated with the Transport Layer?
What is a segment?
This layer of the TCP/IP model provides reliable, connection-oriented data delivery.
What is the Transport Layer?
This is the standard used for Ethernet that uses copper cabling to achieve speeds of 100 Mbps.
What is 100Base-TX?
This networking device operates at Layer 2 of the OSI model and forwards data within a single network based on MAC addresses.
What is a switch?
This is a network that covers a small area, such as a home, office, or school campus.
What is a LAN?
At which OSI layer does data get encapsulated into a frame?
What is the Data Link Layer?
This is a Transport Layer protocol that is connectionless and does not guarantee delivery.
What is UDP?
What are the two types of group addresses used in Ethernet?
What are broadcast and multicast addresses?
This type of routing requires an administrator to manually configure all the routes on a router.
What is static routing?
This is the process by which a router learns the physical address of a device on the same local network, given its IP address.
What is ARP?
What is the process of removing headers and trailers from data as it moves up the protocol stack on a receiving device?
What is de-encapsulation?
HTTP, FTP, and SMTP are all examples of protocols that operate at this layer of the TCP/IP model.
What is the Application Layer?
The physical address of an Ethernet port, burned into the hardware, is also known as this.
What is a MAC address?
What is the DORA process associated with?
What is DHCP?
What is the main purpose of a firewall?
To filter traffic and enhance network security.
This is a field in the Ethernet frame trailer that is used for error detection.
What is the Frame Check Sequence (FCS) or Cyclic Redundancy Check (CRC)?
In the TCP/IP model, which two layers of the OSI model are combined to form the Network Access layer?
What are the Physical and Data Link layers?
What is the purpose of the Spanning Tree Protocol (STP)?
What is to prevent switching loops in a network?
This is a set of rules used to filter network traffic based on criteria such as source/destination IP addresses and port numbers.
What are Access Control Lists (ACLs)?