CompTIA N10-008 Practice Test - Questions Answers, Page 57

IaaS is an example of on-demand scalable hardware that is typically housed in the vendor's data center. IaaS stands for Infrastructure as a Service, which is a cloud computing model that provides virtualized computing resources over the internet. IaaS allows customers to rent servers, storage, network devices, and other hardware components from a cloud service provider, rather than purchasing and maintaining them on-premise. IaaS offers advantages such as scalability, flexibility, cost-effectiveness, and reliability. Customers can adjust their hardware resources according to their needs and pay only for what they use. Customers can also access their hardware resources from anywhere via a web browser or an API. Reference: [CompTIA Network+ Certification Exam Objectives], What Is Infrastructure as a Service (IaaS)? | IBM

Latency, also known as round-trip time (RTT), is the time it takes for a data packet to travel from a source to its destination and back again. It is a key indicator of network performance and can be used to identify fluctuations that may impact the user experience of an application.

Bandwidth, loss, and cyclic redundancy check (CRC) are other important network performance metrics, but they are not directly related to the application team's requirement to monitor for fluctuations in RTT.

Reference:

CompTIA Network+ N10-008 Exam Objectives, Objective 1.6: Network Performance Monitoring CompTIA Network+ N10-008 Study Guide, Chapter 10: Network Performance Monitoring and Troubleshooting

Additional Notes:

The network team can use a variety of tools and techniques to monitor RTT, such as ping, traceroute, and network monitoring software.

When setting up alerts, the network team should consider the acceptable range of RTT for the application. They should also configure alerts to trigger at different levels of severity, so that they can take prompt action to resolve any issues.

Administrative distance is a measure of the trustworthiness of a routing protocol. The smaller the administrative distance value, the more reliable the protocol. Each routing protocol has its own default administrative distance value. OSPF has a default administrative distance of 110, which means it is more reliable than RIP (120) but less reliable than EIGRP (90) or BGP (20).

Reference := Administrative Distance of Routing Protocols - Networks Training, What is Administrative Distance? - Cisco, Adjust Administrative Distance for Route Selection in Cisco IOS Routers …, Administrative Distance (AD) and Autonomous System (AS)

The best solution to resolve the issue of dropped signals and poor connections to the 5GHz network is to change to directional antennas. Directional antennas are antennas that focus the wireless signal in a specific direction, increasing the range and strength of the signal. Directional antennas are suitable for environments where there are obstacles or interference that can weaken or block the wireless signal. In the image, the office space has several walls and doors that can reduce the signal quality of the 5GHz network, which has a shorter wavelength and higher frequency than the 2.4GHz network. By using directional antennas, the network engineer can aim the wireless signal towards the desired areas and avoid the signal loss caused by the walls and doors. Reference: CompTIA Network+ N10-008 Certification Study Guide, page 76; The Official CompTIA Network+ Student Guide (Exam N10-008), page 2-19.

The objective that an evil twin achieves is log-in credentials. An evil twin is a type of rogue access point that mimics a legitimate wireless network by using the same SSID, encryption, and authentication methods. An evil twin can trick unsuspecting users into connecting to it instead of the real network, and then capture their log-in credentials or other sensitive dat a. An evil twin can also perform man-in-the-middle attacks, redirecting or modifying the user's traffic. Reference: CompTIA Network+ N10-008 Certification Study Guide, page 358; The Official CompTIA Network+ Student Guide (Exam N10-008), page 14-1.

The technique that would fulfill the requirement of transferring data in multiple networks is 802.1Q tagging. 802.1Q tagging is a method of adding a tag or identifier to Ethernet frames that indicate which VLAN (Virtual Local Area Network) they belong to. VLANs are logical subdivisions of a network that allow devices in different physical locations or segments to communicate as if they were in the same network. VLANs improve network performance, security, and management by reducing broadcast traffic, isolating sensitive data, and grouping devices by function or department. By using 802.1Q tagging, two Layer 2 switches can exchange data from multiple VLANs over a single trunk link, without mixing or losing the VLAN information. Reference: CompTIA Network+ N10-008 Certification Study Guide, page 64; The Official CompTIA Network+ Student Guide (Exam N10-008), page 2-12.

The alert that the network engineer should configure based on the operation specifications is SNMP traps to report when the chassis temperature exceeds 95°F (35°C). SNMP (Simple Network Management Protocol) is a protocol that allows network devices to communicate their status and performance information to a central management system, called an SNMP manager. SNMP traps are messages that are sent by network devices to notify the SNMP manager of an event or condition that requires attention, such as an error, a failure, or a threshold violation. In this case, the network engineer should configure SNMP traps on the network devices to send an alert when their chassis temperature exceeds 95°F (35°C), which is the maximum operating temperature specified in the table. This alert would help the network engineer monitor and troubleshoot any overheating issues that could affect the network performance or availability. Reference: CompTIA Network+ N10-008 Certification Study Guide, page 228; The Official CompTIA Network+ Student Guide (Exam N10-008), page 8-11.

A proxy is a solution that can mediate access to the internet. A proxy is a server that acts as an intermediary between a client and a destination server on the internet. A proxy can perform various functions, such as filtering, caching, logging, or modifying requests and responses. A proxy can help improve network performance, security, and privacy by reducing bandwidth consumption, blocking malicious or unwanted content, monitoring network activity, and hiding the client's identity or location. Reference: [CompTIA Network+ Certification Exam Objectives], What Is a Proxy Server? | Proxy Server Definition | Avast

A denial-of-service (DoS) attack is an example of an attack where an attacker sends more connection requests than a server can handle, causing the server to crash. A DoS attack is a type of cyberattack that aims to disrupt the normal functioning of a network service or resource by overwhelming it with excessive or malformed traffic. A DoS attack can prevent legitimate users from accessing the service or resource, resulting in degraded performance, unavailability, or data loss. A DoS attack can target various network layers, protocols, or components, such as servers, routers, firewalls, or applications. Reference: [CompTIA Network+ Certification Exam Objectives], What Is a Denial-of-Service (DoS) Attack? | Cisco