Topic 01 Practice Test 1 covers Network Devices and Topology Architectures for Cisco Certified Network Associate 200-301 CCNA and maps to objectives 1.1–1.2. For broader exam preparation, review the Cisco CCNA 200-301 Exam Dumps. Every option includes focused technical reasoning explaining both the networking concept and its fit to the scenario.
Question 1
A campus host in VLAN 10 must send traffic to a database subnet in VLAN 30. Which network component performs the required Layer 3 forwarding? Choose ONE.
- Router
- Layer 2 switch
- Endpoint
- Wireless access point
Correct Answer: A
Correct Answer
Answer A is correct because Routers make Layer 3 forwarding decisions from IP routes and move packets between separate IP networks. The task requires Layer 3 forwarding between distinct IP networks. The host needs a device that can select a route between separate IP networks. It is the appropriate choice.
Incorrect Answers
Answer B is incorrect because A Layer 2 switch learns source MAC addresses and uses its MAC table to forward Ethernet frames inside a VLAN. It suits local same-VLAN connectivity, not routing between different IP subnets. Here, the task is Layer 3 forwarding between distinct IP networks. The host needs a device that can select a route between separate IP networks. That option misses the required function.
Answer D is incorrect because Use an AP when the requirement is actual Wi-Fi client connectivity at a location. A wireless access point supplies the 802.11 radio interface that associates Wi-Fi clients and bridges their traffic into the wired LAN. The case instead needs Layer 3 forwarding between distinct IP networks. The host needs a device that can select a route between separate IP networks. The roles differ.
Answer C is incorrect because An endpoint is a client-side system such as a laptop, phone, scanner, or workstation that originates or consumes network application traffic. Its proper use differs: It fits a user or edge device that consumes services rather than hosting shared infrastructure. This case needs Layer 3 forwarding between distinct IP networks. The host needs a device that can select a route between separate IP networks. It therefore fails here.
Question 2
Two workstations in the same VLAN exchange frames through an access-layer device. The device should learn source MAC addresses and forward based on its MAC table. Which component is being described? Choose ONE.
- Server
- Router
- Layer 2 switch
- Wireless/network controller
Correct Answer: C
Correct Answer
Answer C is correct because Layer 2 switching is MAC-based forwarding within the local broadcast domain; it does not require IP route lookup. The required behavior is local Ethernet switching within the same broadcast domain. Required outcome: MAC-based forwarding inside one VLAN. This option fits.
Incorrect Answers
Answer B is incorrect because Its natural use is path selection between subnets or remote networks. A router connects distinct IP subnets, selecting a next hop from its routing information rather than forwarding only by MAC address. The case instead needs MAC-based forwarding inside one VLAN. The required behavior is local Ethernet switching within the same broadcast domain. The roles differ.
Answer D is incorrect because A wireless or network controller centralizes configuration, policy, monitoring, and often RF or lifecycle management for managed devices. Its proper use differs: It fits environments that need coordinated settings and operations across many access points. This case needs MAC-based forwarding inside one VLAN. The required behavior is local Ethernet switching within the same broadcast domain. It therefore fails here.
Answer A is incorrect because A server hosts shared applications, data, authentication, name resolution, or other services that network clients consume. It is appropriate when multiple clients depend on a hosted shared function. Here, the task is MAC-based forwarding inside one VLAN. The required behavior is local Ethernet switching within the same broadcast domain. That option misses the required function.
Question 3
A campus design needs routing between many user VLANs directly on the distribution switch without sending every packet to an external router. Which component best fits? Choose ONE.
- Endpoint
- Layer 3 switch
- Layer 2 switch
- Wireless access point
Correct Answer: B
Correct Answer
Answer B is correct because SVIs and hardware Layer 3 forwarding on a multilayer switch match the design. A Layer 3 switch combines Ethernet switching with hardware-based IP routing, commonly using SVIs for inter-VLAN forwarding. The required outcome is high-throughput inter-VLAN routing on the campus switching platform. The role matches.
Incorrect Answers
Answer C is incorrect because An Ethernet switch at Layer 2 builds a forwarding table from learned MAC addresses and sends frames toward the matching switch port. Its role is local frame switching; a separate Layer 3 function is needed to cross subnet boundaries. This case needs high-throughput inter-VLAN routing on the campus switching platform. That mismatch rules it out.
Answer D is incorrect because Access points provide the RF connection used by wireless stations, then connect those client frames to the distribution network. It fits the radio-access role, whereas centralized fleet policy belongs to a controller. Here, the task is high-throughput inter-VLAN routing on the campus switching platform. SVIs and hardware Layer 3 forwarding on a multilayer switch match the design. That option misses the required function.
Answer A is incorrect because Choose endpoint when the described system is the client itself, not a network intermediary or shared application host. Endpoints sit at the network edge and use services; common examples include user computers, mobile devices, printers, and scanners. The case instead needs high-throughput inter-VLAN routing on the campus switching platform. SVIs and hardware Layer 3 forwarding on a multilayer switch match the design. The roles differ.
Question 4
A security team wants perimeter policy that can identify applications and users, not merely source/destination addresses and ports. Which component should enforce the policy? Choose ONE.
- Intrusion prevention system (IPS)
- Layer 2 switch
- Next-generation firewall
- Router
Correct Answer: C
Correct Answer
Answer C is correct because A next-generation firewall extends stateful filtering with context such as application identity, user identity, URL categories, and often integrated threat prevention. The task requires application-aware and user-aware security policy. The policy decision requires the deeper inspection and identity context associated with a next-generation firewall. It is the appropriate choice.
Incorrect Answers
Answer A is incorrect because An intrusion prevention system inspects traffic for malicious signatures or behavior and, when inline, can drop or reset detected attack flows. It directly fits a requirement to detect and stop exploit traffic inline. Here, the task is application-aware and user-aware security policy. The policy decision requires the deeper inspection and identity context associated with a next-generation firewall. That option misses the required function.
Answer D is incorrect because Choose it when the needed function is inter-network IP forwarding rather than local Layer 2 switching. Routing operates across Layer 3 network boundaries; router interfaces normally separate broadcast domains and forward toward remote prefixes. The case instead needs application-aware and user-aware security policy. The policy decision requires the deeper inspection and identity context associated with a next-generation firewall. The roles differ.
Answer B is incorrect because A Layer 2 switch learns source MAC addresses and uses its MAC table to forward Ethernet frames inside a VLAN. Its proper use differs: It suits local same-VLAN connectivity, not routing between different IP subnets. This case needs application-aware and user-aware security policy. The policy decision requires the deeper inspection and identity context associated with a next-generation firewall. It therefore fails here.
Question 5
An inline security appliance must recognize exploit traffic and immediately block the malicious flow before it reaches a server. Which component is the most direct fit? Choose ONE.
- Intrusion prevention system (IPS)
- Next-generation firewall
- Wireless access point
- Wireless/network controller
Correct Answer: A
Correct Answer
Answer A is correct because IPS technology analyzes passing traffic for exploit indicators and can actively prevent matching malicious sessions before they reach a target. The primary task is prevention of malicious traffic based on intrusion-detection logic. Required outcome: inline exploit detection and prevention. This option fits.
Incorrect Answers
Answer B is incorrect because Choose it for perimeter or segmentation enforcement that needs richer context than a simple port-and-address rule. NGFW policy can evaluate more than addresses and ports, adding application-aware and identity-aware inspection to stateful firewall controls. The case instead needs inline exploit detection and prevention. The primary task is prevention of malicious traffic based on intrusion-detection logic. The roles differ.
Answer D is incorrect because Controllers coordinate a fleet of managed access points or other network devices from a common management and policy plane. Its proper use differs: Use a controller when centralized policy or lifecycle management across a device fleet is the key need. This case needs inline exploit detection and prevention. The primary task is prevention of malicious traffic based on intrusion-detection logic. It therefore fails here.
Answer C is incorrect because The AP is the edge radio device that lets nearby 802.11 clients join the WLAN and reach the wired network. Choose it to provide local wireless coverage and association rather than to coordinate many APs centrally. Here, the task is inline exploit detection and prevention. The primary task is prevention of malicious traffic based on intrusion-detection logic. That option misses the required function.
Question 6
Employees need 802.11 connectivity in a conference room and their wireless frames must enter the wired LAN. Which component provides that local radio access? Choose ONE.
- Wireless/network controller
- Server
- Router
- Wireless access point
Correct Answer: D
Correct Answer
Answer D is correct because The room needs the device that terminates client Wi-Fi connections. A wireless access point supplies the 802.11 radio interface that associates Wi-Fi clients and bridges their traffic into the wired LAN. The required outcome is local wireless access and bridging into the LAN. The role matches.
Incorrect Answers
Answer A is incorrect because Centralized controllers push consistent settings and collect operational state for multiple managed network devices instead of serving as the clients’ radio itself. Its proper use differs: Its role is fleet-wide coordination and control, not providing the individual endpoint’s Wi-Fi radio link. This case needs local wireless access and bridging into the LAN. The room needs the device that terminates client Wi-Fi connections. It therefore fails here.
Answer C is incorrect because Routers make Layer 3 forwarding decisions from IP routes and move packets between separate IP networks. This is appropriate when traffic must cross from one IP network to another. Here, the task is local wireless access and bridging into the LAN. The room needs the device that terminates client Wi-Fi connections. That option misses the required function.
Answer B is incorrect because Choose server when the primary responsibility is providing an application or infrastructure service to other systems. Servers provide resources or application functions to multiple client systems over the network. The case instead needs local wireless access and bridging into the LAN. The room needs the device that terminates client Wi-Fi connections. The roles differ.
Question 7
A university operates hundreds of access points and wants one place to push WLAN policy, monitor AP health, and coordinate settings. Which component best meets the requirement? Choose ONE.
- Wireless access point
- Layer 2 switch
- Wireless/network controller
- Endpoint
Correct Answer: C
Correct Answer
Answer C is correct because A wireless or network controller centralizes configuration, policy, monitoring, and often RF or lifecycle management for managed devices. The task requires centralized management of many wireless devices. Central policy and fleet-level management are controller functions. It is the appropriate choice.
Incorrect Answers
Answer A is incorrect because Access points provide the RF connection used by wireless stations, then connect those client frames to the distribution network. It fits the radio-access role, whereas centralized fleet policy belongs to a controller. Here, the task is centralized management of many wireless devices. Central policy and fleet-level management are controller functions. That option misses the required function.
Answer D is incorrect because Its role is end-user or edge consumption of network services rather than routing, switching, or centralized service hosting. A client endpoint is an attached end system whose normal purpose is to send or receive application data rather than forward traffic for other networks. The case instead needs centralized management of many wireless devices. Central policy and fleet-level management are controller functions. The roles differ.
Answer B is incorrect because Layer 2 switching is MAC-based forwarding within the local broadcast domain; it does not require IP route lookup. Its proper use differs: Use it when endpoints need Ethernet forwarding within one VLAN or broadcast domain. This case needs centralized management of many wireless devices. Central policy and fleet-level management are controller functions. It therefore fails here.
Question 8
A nurse carries a Wi-Fi tablet that launches applications hosted in the hospital data center. What role does the tablet play in the network? Choose ONE.
- Router
- Wireless/network controller
- Server
- Endpoint
Correct Answer: D
Correct Answer
Answer D is correct because An endpoint is a client-side system such as a laptop, phone, scanner, or workstation that originates or consumes network application traffic. The tablet is a user-facing client rather than a shared service host. Required outcome: a client device that originates and consumes application traffic. This option fits.
Incorrect Answers
Answer C is incorrect because It fits a shared-service host, not a user endpoint or a device whose job is to forward network traffic. A network server is an end system whose main role is to supply a shared service, rather than acting as an individual user’s client device. The case instead needs a client device that originates and consumes application traffic. The roles differ.
Answer B is incorrect because Controllers coordinate a fleet of managed access points or other network devices from a common management and policy plane. Its proper use differs: Use a controller when centralized policy or lifecycle management across a device fleet is the key need. This case needs a client device that originates and consumes application traffic. The tablet is a user-facing client rather than a shared service host. It therefore fails here.
Answer A is incorrect because A router connects distinct IP subnets, selecting a next hop from its routing information rather than forwarding only by MAC address. Its natural use is path selection between subnets or remote networks. Here, the task is a client device that originates and consumes application traffic. The tablet is a user-facing client rather than a shared service host. That option misses the required function.
Question 9
A virtual machine hosts an internal payroll application used by hundreds of employees. Which network role best describes that VM? Choose ONE.
- Wireless/network controller
- Wireless access point
- Server
- Endpoint
Correct Answer: C
Correct Answer
Answer C is correct because Its primary function is to host a service consumed by many endpoints. A server hosts shared applications, data, authentication, name resolution, or other services that network clients consume. The required outcome is a system that provides a shared application to clients. The role matches.
Incorrect Answers
Answer D is incorrect because Endpoints sit at the network edge and use services; common examples include user computers, mobile devices, printers, and scanners. Its proper use differs: Choose endpoint when the described system is the client itself, not a network intermediary or shared application host. This case needs a system that provides a shared application to clients. Its primary function is to host a service consumed by many endpoints. It therefore fails here.
Answer B is incorrect because The AP is the edge radio device that lets nearby 802.11 clients join the WLAN and reach the wired network. Choose it to provide local wireless coverage and association rather than to coordinate many APs centrally. Here, the task is a system that provides a shared application to clients. Its primary function is to host a service consumed by many endpoints. That option misses the required function.
Answer A is incorrect because Its role is fleet-wide coordination and control, not providing the individual endpoint’s Wi-Fi radio link. Centralized controllers push consistent settings and collect operational state for multiple managed network devices instead of serving as the clients’ radio itself. The case instead needs a system that provides a shared application to clients. Its primary function is to host a service consumed by many endpoints. The roles differ.
Question 10
A ceiling-mounted access point has no nearby electrical outlet. The access switch should supply both data connectivity and operating power over the same copper run. Which technology is required? Choose ONE.
- Wireless/network controller
- WAN architecture
- Cloud infrastructure
- Power over Ethernet (PoE)
Correct Answer: D
Correct Answer
Answer D is correct because Power over Ethernet carries DC power and Ethernet data over supported copper cabling from power-sourcing equipment to a powered device. The task requires power delivery together with Ethernet data over copper cabling. The AP must receive DC power from the Ethernet infrastructure. It is the appropriate choice.
Incorrect Answers
Answer B is incorrect because A wide area network connects LANs or sites across significant geographic distance using carrier, provider, or other long-haul connectivity. It fits communication between organizational sites in different geographic locations. Here, the task is power delivery together with Ethernet data over copper cabling. The AP must receive DC power from the Ethernet infrastructure. That option misses the required function.
Answer C is incorrect because It fits rapid scaling, on-demand service consumption, or reduced ownership of physical infrastructure. Cloud infrastructure supplies provider-hosted compute, storage, and networking resources that customers can provision without owning all underlying hardware. The case instead needs power delivery together with Ethernet data over copper cabling. The AP must receive DC power from the Ethernet infrastructure. The roles differ.
Answer A is incorrect because A wireless or network controller centralizes configuration, policy, monitoring, and often RF or lifecycle management for managed devices. Its proper use differs: It fits environments that need coordinated settings and operations across many access points. This case needs power delivery together with Ethernet data over copper cabling. The AP must receive DC power from the Ethernet infrastructure. It therefore fails here.
Question 11
A branch router receives a packet for a remote network and chooses the next hop from its routing table. Which component function is being exercised? Choose ONE.
- Layer 2 switch
- Server
- Wireless access point
- Router
Correct Answer: D
Correct Answer
Answer D is correct because Routing operates across Layer 3 network boundaries; router interfaces normally separate broadcast domains and forward toward remote prefixes. The decision is an IP forwarding decision based on Layer 3 routes. Required outcome: path selection for a destination IP network. This option fits.
Incorrect Answers
Answer A is incorrect because Its role is local frame switching; a separate Layer 3 function is needed to cross subnet boundaries. An Ethernet switch at Layer 2 builds a forwarding table from learned MAC addresses and sends frames toward the matching switch port. The case instead needs path selection for a destination IP network. The decision is an IP forwarding decision based on Layer 3 routes. The roles differ.
Answer B is incorrect because Servers provide resources or application functions to multiple client systems over the network. Its proper use differs: Choose server when the primary responsibility is providing an application or infrastructure service to other systems. This case needs path selection for a destination IP network. The decision is an IP forwarding decision based on Layer 3 routes. It therefore fails here.
Answer C is incorrect because A wireless access point supplies the 802.11 radio interface that associates Wi-Fi clients and bridges their traffic into the wired LAN. Use an AP when the requirement is actual Wi-Fi client connectivity at a location. Here, the task is path selection for a destination IP network. The decision is an IP forwarding decision based on Layer 3 routes. That option misses the required function.
Question 12
An access switch receives a frame from a new workstation and records the source MAC address against the ingress port. Which component behavior is this? Choose ONE.
- Router
- Layer 2 switch
- Layer 3 switch
- Wireless/network controller
Correct Answer: B
Correct Answer
Answer B is correct because Learning source MAC addresses is fundamental Layer 2 switch behavior. A Layer 2 switch learns source MAC addresses and uses its MAC table to forward Ethernet frames inside a VLAN. The required outcome is source MAC learning for Ethernet forwarding. The role matches.
Incorrect Answers
Answer C is incorrect because Multilayer switches can route between VLAN interfaces while retaining switch-platform forwarding performance. Its proper use differs: Use it when the switching platform itself should provide Layer 3 connectivity among local VLANs. This case needs source MAC learning for Ethernet forwarding. Learning source MAC addresses is fundamental Layer 2 switch behavior. It therefore fails here.
Answer A is incorrect because Routers make Layer 3 forwarding decisions from IP routes and move packets between separate IP networks. This is appropriate when traffic must cross from one IP network to another. Here, the task is source MAC learning for Ethernet forwarding. Learning source MAC addresses is fundamental Layer 2 switch behavior. That option misses the required function.
Answer D is incorrect because Use a controller when centralized policy or lifecycle management across a device fleet is the key need. Controllers coordinate a fleet of managed access points or other network devices from a common management and policy plane. The case instead needs source MAC learning for Ethernet forwarding. Learning source MAC addresses is fundamental Layer 2 switch behavior. The roles differ.
Question 13
A distribution switch uses switched virtual interfaces to route between VLAN 20 and VLAN 40 at wire speed. Which component capability makes this possible? Choose ONE.
- Layer 3 switch
- Layer 2 switch
- Server
- Wireless access point
Correct Answer: A
Correct Answer
Answer A is correct because Layer 3 switching adds IP routing functions to a campus switch, allowing local VLANs to exchange traffic through routed interfaces or SVIs. The task requires routing between local VLANs on the switch. The scenario explicitly calls for multilayer switching rather than pure Layer 2 forwarding. It is the appropriate choice.
Incorrect Answers
Answer B is incorrect because Layer 2 switching is MAC-based forwarding within the local broadcast domain; it does not require IP route lookup. Use it when endpoints need Ethernet forwarding within one VLAN or broadcast domain. Here, the task is routing between local VLANs on the switch. The scenario explicitly calls for multilayer switching rather than pure Layer 2 forwarding. That option misses the required function.
Answer D is incorrect because It fits the radio-access role, whereas centralized fleet policy belongs to a controller. Access points provide the RF connection used by wireless stations, then connect those client frames to the distribution network. The case instead needs routing between local VLANs on the switch. The scenario explicitly calls for multilayer switching rather than pure Layer 2 forwarding. The roles differ.
Answer C is incorrect because A network server is an end system whose main role is to supply a shared service, rather than acting as an individual user’s client device. It fits a shared-service host, not a user endpoint or a device whose job is to forward network traffic. This case needs routing between local VLANs on the switch. That mismatch rules it out.
Question 14
A company wants a security gateway that can allow Microsoft 365 traffic while blocking an unsanctioned file-sharing application even when both use common web ports. Which component best fits? Choose ONE.
- Layer 2 switch
- Router
- Next-generation firewall
- Intrusion prevention system (IPS)
Correct Answer: C
Correct Answer
Answer C is correct because Next-generation firewalls enforce traffic policy with Layer 3/4 state plus deeper application, user, content, and threat context. The decisive requirement is recognizing applications beyond simple port numbers. Required outcome: application-aware policy enforcement at the security boundary. This option fits.
Incorrect Answers
Answer B is incorrect because Its natural use is path selection between subnets or remote networks. A router connects distinct IP subnets, selecting a next hop from its routing information rather than forwarding only by MAC address. The case instead needs application-aware policy enforcement at the security boundary. The decisive requirement is recognizing applications beyond simple port numbers. The roles differ.
Answer D is incorrect because An inline intrusion prevention sensor combines attack detection with an enforcement action such as blocking packets or terminating a suspicious flow. Its proper use differs: It is most appropriate when attack-pattern inspection and immediate blocking are the deciding requirements. This case needs application-aware policy enforcement at the security boundary. The decisive requirement is recognizing applications beyond simple port numbers. It therefore fails here.
Answer A is incorrect because An Ethernet switch at Layer 2 builds a forwarding table from learned MAC addresses and sends frames toward the matching switch port. Its role is local frame switching; a separate Layer 3 function is needed to cross subnet boundaries. Here, the task is application-aware policy enforcement at the security boundary. The decisive requirement is recognizing applications beyond simple port numbers. That option misses the required function.
Question 15
A sensor sees a known exploit signature in an inbound flow and must drop the packets in real time. Which device role is being used? Choose ONE.
- Intrusion prevention system (IPS)
- Endpoint
- Next-generation firewall
- Wireless/network controller
Correct Answer: A
Correct Answer
Answer A is correct because The task centers on intrusion prevention rather than general device management. An intrusion prevention system inspects traffic for malicious signatures or behavior and, when inline, can drop or reset detected attack flows. The required outcome is inline blocking of recognized malicious traffic. The role matches.
Incorrect Answers
Answer C is incorrect because A next-generation firewall extends stateful filtering with context such as application identity, user identity, URL categories, and often integrated threat prevention. Its proper use differs: It is suitable when security policy must distinguish applications, users, or content at a boundary. This case needs inline blocking of recognized malicious traffic. The task centers on intrusion prevention rather than general device management. It therefore fails here.
Answer D is incorrect because Centralized controllers push consistent settings and collect operational state for multiple managed network devices instead of serving as the clients’ radio itself. Its role is fleet-wide coordination and control, not providing the individual endpoint’s Wi-Fi radio link. Here, the task is inline blocking of recognized malicious traffic. The task centers on intrusion prevention rather than general device management. That option misses the required function.
Answer B is incorrect because Its role is end-user or edge consumption of network services rather than routing, switching, or centralized service hosting. A client endpoint is an attached end system whose normal purpose is to send or receive application data rather than forward traffic for other networks. The case instead needs inline blocking of recognized malicious traffic. The task centers on intrusion prevention rather than general device management. The roles differ.
Question 16
Visitors can see an SSID but need a device in the room to transmit and receive the 802.11 frames and bridge them onto Ethernet. Which component provides that function? Choose ONE.
- Router
- Wireless access point
- Server
- Wireless/network controller
Correct Answer: B
Correct Answer
Answer B is correct because The AP is the edge radio device that lets nearby 802.11 clients join the WLAN and reach the wired network. The task requires radio access for wireless clients. The requirement is the local wireless termination point. It is the appropriate choice.
Incorrect Answers
Answer D is incorrect because A wireless or network controller centralizes configuration, policy, monitoring, and often RF or lifecycle management for managed devices. It fits environments that need coordinated settings and operations across many access points. Here, the task is radio access for wireless clients. The requirement is the local wireless termination point. That option misses the required function.
Answer A is incorrect because Choose it when the needed function is inter-network IP forwarding rather than local Layer 2 switching. Routing operates across Layer 3 network boundaries; router interfaces normally separate broadcast domains and forward toward remote prefixes. The case instead needs radio access for wireless clients. The requirement is the local wireless termination point. The roles differ.
Answer C is incorrect because A server hosts shared applications, data, authentication, name resolution, or other services that network clients consume. Its proper use differs: It is appropriate when multiple clients depend on a hosted shared function. This case needs radio access for wireless clients. The requirement is the local wireless termination point. It therefore fails here.
Question 17
A network team wants to change SSIDs, radio profiles, and authentication settings across a managed AP fleet from a central system. Which component should they use? Choose ONE.
- Layer 2 switch
- Wireless access point
- Endpoint
- Wireless/network controller
Correct Answer: D
Correct Answer
Answer D is correct because Controllers coordinate a fleet of managed access points or other network devices from a common management and policy plane. A controller coordinates configuration across many managed devices. Required outcome: centralized wireless configuration and policy. This option fits.
Incorrect Answers
Answer B is incorrect because Use an AP when the requirement is actual Wi-Fi client connectivity at a location. A wireless access point supplies the 802.11 radio interface that associates Wi-Fi clients and bridges their traffic into the wired LAN. The case instead needs centralized wireless configuration and policy. A controller coordinates configuration across many managed devices. The roles differ.
Answer A is incorrect because A Layer 2 switch learns source MAC addresses and uses its MAC table to forward Ethernet frames inside a VLAN. Its proper use differs: It suits local same-VLAN connectivity, not routing between different IP subnets. This case needs centralized wireless configuration and policy. A controller coordinates configuration across many managed devices. It therefore fails here.
Answer C is incorrect because An endpoint is a client-side system such as a laptop, phone, scanner, or workstation that originates or consumes network application traffic. It fits a user or edge device that consumes services rather than hosting shared infrastructure. Here, the task is centralized wireless configuration and policy. A controller coordinates configuration across many managed devices. That option misses the required function.
Question 18
A warehouse barcode scanner initiates HTTPS sessions to an inventory service. Which role best describes the scanner? Choose ONE.
- Router
- Endpoint
- Server
- Wireless/network controller
Correct Answer: B
Correct Answer
Answer B is correct because The scanner is an edge client initiating sessions to a hosted service. Endpoints sit at the network edge and use services; common examples include user computers, mobile devices, printers, and scanners. The required outcome is a client-side device consuming a network service. The role matches.
Incorrect Answers
Answer C is incorrect because Servers provide resources or application functions to multiple client systems over the network. Its proper use differs: Choose server when the primary responsibility is providing an application or infrastructure service to other systems. This case needs a client-side device consuming a network service. The scanner is an edge client initiating sessions to a hosted service. It therefore fails here.
Answer A is incorrect because Routers make Layer 3 forwarding decisions from IP routes and move packets between separate IP networks. This is appropriate when traffic must cross from one IP network to another. Here, the task is a client-side device consuming a network service. The scanner is an edge client initiating sessions to a hosted service. That option misses the required function.
Answer D is incorrect because Its role is fleet-wide coordination and control, not providing the individual endpoint’s Wi-Fi radio link. Centralized controllers push consistent settings and collect operational state for multiple managed network devices instead of serving as the clients’ radio itself. The case instead needs a client-side device consuming a network service. The scanner is an edge client initiating sessions to a hosted service. The roles differ.
Question 19
A system answers DNS queries for all corporate clients. Which network role best describes this system? Choose ONE.
- Endpoint
- Wireless access point
- Power over Ethernet (PoE)
- Server
Correct Answer: D
Correct Answer
Answer D is correct because A network server is an end system whose main role is to supply a shared service, rather than acting as an individual user’s client device. The task requires a shared service provider for network clients. The system’s primary purpose is to provide name-resolution service to other devices. It is the appropriate choice.
Incorrect Answers
Answer A is incorrect because A client endpoint is an attached end system whose normal purpose is to send or receive application data rather than forward traffic for other networks. Its role is end-user or edge consumption of network services rather than routing, switching, or centralized service hosting. Here, the task is a shared service provider for network clients. That mismatch rules it out.
Answer B is incorrect because It fits the radio-access role, whereas centralized fleet policy belongs to a controller. Access points provide the RF connection used by wireless stations, then connect those client frames to the distribution network. The case instead needs a shared service provider for network clients. The system’s primary purpose is to provide name-resolution service to other devices. The roles differ.
Answer C is incorrect because PoE lets compatible Ethernet switch ports energize devices such as phones, cameras, or access points through the same copper pairs used for connectivity. Its proper use differs: Use PoE when a phone, camera, or AP needs power delivered through its Ethernet connection. This case needs a shared service provider for network clients. The system’s primary purpose is to provide name-resolution service to other devices. It therefore fails here.
Question 20
After new cameras are connected, several PoE access points fail to power on even though Ethernet link configuration is correct. Which networking capability should the administrator check first? Choose ONE.
- WAN architecture
- Power over Ethernet (PoE)
- Router
- Cloud infrastructure
Correct Answer: B
Correct Answer
Answer B is correct because With PoE, a PSE supplies electrical power across the Ethernet cable while the powered device receives both network data and operating power. The symptom points to the switch’s PoE power budget or delivery capability. Required outcome: availability of sufficient Ethernet power from the switch. This option fits.
Incorrect Answers
Answer C is incorrect because Its natural use is path selection between subnets or remote networks. A router connects distinct IP subnets, selecting a next hop from its routing information rather than forwarding only by MAC address. The case instead needs availability of sufficient Ethernet power from the switch. The symptom points to the switch’s PoE power budget or delivery capability. The roles differ.
Answer D is incorrect because A cloud model delivers infrastructure as provider-operated services, enabling elastic consumption and reducing direct responsibility for physical equipment. Its proper use differs: Choose cloud when elasticity and provider-operated hardware are central requirements. This case needs availability of sufficient Ethernet power from the switch. The symptom points to the switch’s PoE power budget or delivery capability. It therefore fails here.
Answer A is incorrect because WAN connectivity links separate geographic locations so their local networks can communicate across a metropolitan, regional, or global distance. Choose WAN architecture when the main requirement is inter-site rather than within-building connectivity. Here, the task is availability of sufficient Ethernet power from the switch. The symptom points to the switch’s PoE power budget or delivery capability. That option misses the required function.
