CompTIA Updated N10-008 Exam Questions and Answers by iqra

• DHCP is a protocol that dynamically assigns IP addresses to devices on a network. DHCP allows devices to obtain an IP address automatically without manual configuration. DHCP also simplifies network management by reducing IP conflicts and address exhaustion.
• A DHCP setting is a configuration option that affects how DHCP operates on a network. DHCP settings can be applied at different levels, such as the server, the scope, or the client. DHCP settings can control various aspects of the IP address assignment process, such as the range, the duration, the options, and the exclusions.
• A DHCP reservation is a DHCP setting that assigns a specific IP address to a specific device based on its MAC address. A DHCP reservation ensures that the device always receives the same IP address from the DHCP server, even if the lease expires or the device reboots. A DHCP reservation can be useful for devices that need a consistent IP address, such as servers, printers, cameras, or gaming consoles.
• The other options are not DHCP settings that would ensure a device gets the same IP address each time it is connected to the network. Scope options are DHCP settings that apply to a group of devices within a defined range of IP addresses. Exclusion is a DHCP setting that prevents a range of IP addresses from being assigned to any device. Relay is a DHCP setting that allows a device to forward DHCP requests from one network segment to another. Pool is a DHCP setting that defines the available IP addresses that can be assigned to devices. References:
• CompTIA Network+ N10-008 Study Guide, Chapter 3: Network Operations, Section 3.3: Network Configuration Management, Subsection: DHCP, pp. 144-146.
• Professor Messer’s CompTIA N10-008 Network+ Course Notes, Section 2.6: Network Addressing, Subsection: DHCP, p. 38.
• Static IP vs DHCP Reservation, The Tech Journal, May 7, 2019.

• BGP stands for Border Gateway Protocol, and it is the standard protocol for exchanging routing information between different autonomous systems (AS) on the internet12. An AS is a network or a group of networks under a single administrative control, such as an ISP or a large enterprise12.
• BGP is an Exterior Gateway Protocol (EGP), which means it is used to communicate with routers outside the local network or AS12. BGP allows each AS to advertise its own routes and policies to other ASes, and to learn the best routes to reach any destination on the internet12.
• BGP is generally used by major ISPs for handling large-scale internet traffic because it is highly scalable, flexible, and reliable12. BGP can handle millions of routes and thousands of ASes, and it can support various routing policies and preferences12. BGP also has mechanisms to detect and avoid routing loops, and to recover from network failures12.
• The other options are not suitable for handling large-scale internet traffic across different ASes. RIP (Routing Information Protocol) and EIGRP (Enhanced Interior Gateway Routing Protocol) are both Distance Vector protocols, which means they use the number of hops as the metric to find the best route34. They are also Interior Gateway Protocols (IGP), which means they are used to communicate with routers within the same network or AS34. RIP and EIGRP are not scalable or flexible enough to handle the complexity and diversity of the internet34. OSPF (Open Shortest Path First) is a Link State protocol, which means it uses the speed and cost of the links as the metric to find the best route5. It is also an IGP, which means it is used to communicate with routers within the same network or AS5. OSPF is more scalable and flexible than RIP and EIGRP, but it still has limitations in handling large-scale internet traffic across different ASes5. References:
• 1: CompTIA Network+ N10-008 Certification Study Guide, Chapter 3: Routing, Section 3.4: BGP6
• 2: Professor Messer’s CompTIA N10-008 Network+ Course Notes, Page 18: BGP7
• 3: CompTIA Network+ N10-008 Certification Study Guide, Chapter 3: Routing, Section 3.2: RIP and EIGRP6
• 4: Professor Messer’s CompTIA N10-008 Network+ Course Notes, Page 16: RIP and EIGRP7
• 5: CompTIA Network+ N10-008 Certification Study Guide, Chapter 3: Routing, Section 3.3: OSPF6
• 6: CompTIA Network+ N10-008 Certification Study Guide2
• 7: Professor Messer’s CompTIA Network+ N10-008 Training Course5

STP (Spanning Tree Protocol) is a protocol that prevents loops in a network by placing some of the switch ports in different states, such as blocking, listening, learning, forwarding, or disabled. A port in the blocking state does not forward frames or participate in frame forwarding. A network engineer can reconfigure STP to change the port states and avoid blocking ports that are needed for trunking.

A peer-to-peer network is a type of network in which each computer (or node) can communicate directly with any other node, without requiring a central server or authority. Each node can act as both a client and a server, and can share its own resources, such as files, printers, or internet connection, with other nodes. A peer-to-peer network allows users to directly access and exchange what is on or attached to their computers, with equal permissions and responsibilities