CCNA practice questions
Cisco · 200-301 · 200 questions
Original practice questions for the Cisco CCNA 200-301 exam, covering network fundamentals, network access, IP connectivity, IP services, security fundamentals, and automation and programmability. Content is original practice material aligned to the official exam domains and is not a brain-dump of actual exam questions.
This course contains the use of artificial intelligence.
About the 200-301 exam
- Time allowed
- 2 hours
- Languages
- English, Japanese
Exam details published by the vendor, checked 6 November 2026. Vendors change fees and formats without notice — confirm on the vendor's own page before you book.
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Network Fundamentals · 60 questions
- A city clerk needs a device that forwards packets between the permits VLAN and the Internet edge so online applications can reach public systems. Which device best fills that role?
- A county courts IT team upgrades a closet so one chassis can switch traffic inside staff VLANs and also route between those VLANs for courts users. Which device role matches that requirement?
- A public health clinic wants an appliance that inspects traffic and can block malicious flows aimed at public-health portals, not merely forward packets by destination IP. Which component best matches that need?
- A building permits desk installs radios so field inspectors can join staff Wi-Fi without running new copper to every temporary desk. Which network component provides that 802.11 radio edge?
- A fire district wants IP phones and cameras in the station to draw power from the closet switch instead of separate wall adapters. Which capability should the access switch provide?
- A police records bureau designs a compact campus where access switches uplink only to a distribution layer that also acts as the core, with no separate core tier. Which topology architecture is that?
- A sanitation department keeps separate access, distribution, and core layers across city hall and annex buildings for a larger hierarchical campus. Which architecture does that describe?
- A wastewater plant builds a data-hall fabric where every leaf switch uplinks to spines so server-to-server east-west traffic scales predictably. Which topology is that?
- A stormwater bureau connects remote pump stations to headquarters over provider circuits spanning the county. Which topology characteristic best describes that design?
- A tax assessor compares keeping file servers in the civic data room versus hosting the citizen portal in a cloud region. What distinction should the team apply?
- An election office needs single-mode fiber between distant fire stations and multimode fiber for shorter runs inside HQ, while desks still use copper. When is single-mode the better choice?
- A 911 PSAP must modernize uplinks away from older shared coaxial-era media toward today's Ethernet closet design. Which connection model should they standardize on for switch-to-switch links?
- A municipal hospital campus stocks RJ-45 copper for desk drops and fiber SFPs for closet-to-closet links that exceed 100 meters or face strong EMI. What drives that interface choice?
- A community college district standardizes LC fiber patching for distribution uplinks while keeping copper access drops to classrooms. Which design role split does that reflect?
- An airport authority sees CRC errors and late collisions on a desk port after a duplex mismatch with a legacy printer. What do those symptoms most strongly indicate?
- A port authority traces flapping uplinks and rising input errors to a damaged fiber patch between closets. Which conclusion best fits those indicators?
- A housing authority finds one switch port locked at 100/full while the attached legacy device is at 100/half after hard-coding speed and duplex on only one end. What is the likely result?
- A parks and recreation team correlates excessive collisions with a shared hub still installed in a temporary election staging room. What does that symptom most likely indicate?
- A fleet garage needs reliable, ordered, acknowledged delivery for permit-PDF uploads from tablets to the records server. Which transport behavior should they choose?
- An emergency-management office streams live council-meeting video where low latency matters more than retransmitting every lost packet. Which transport is the better fit?
- A library consortium compares SSH management sessions that use a three-way handshake with lightweight DNS queries on the same municipal network. What contrast is most accurate?
- A transit authority must collect syslog from hundreds of closets without maintaining a transport session per device. Which approach best fits that operational messaging pattern?
- A water utility must carve a 192.168.10.0/24 into four equal subnets for permits, finance, operations, and guest kiosks. Which prefix length creates those equal networks?
- A school district assigns 10.50.20.0/27 to a pump-station LAN. What is the usable host range and broadcast address for that subnet?
- A city hall campus needs to know how many usable host addresses a /29 yields for a tiny CCTV switch segment. How many usable hosts does that prefix provide?
- Animal control compares 10.20.30.45/28 and 10.20.30.50/28 on the shelter VLAN plan. What is true about these two addresses?
- Code enforcement plans VLSM so sparse rural clinics get small subnets while HQ needs many more hosts. What is the main reason to right-size each subnet this way?
- A public works yard documents the mask 255.255.255.192 for a new CCTV segment. Which prefix length matches that dotted-decimal mask?
- County jail IT places the parks VLAN gateway as the first usable address in 10.40.12.0/28. Which address should be configured on the SVI?
- A museum campus host is set to 192.168.40.90/24 while the VLAN SVI gateway is 192.168.41.1/24. What is the most likely connectivity root cause?
- A city clerk assigns RFC1918 addresses to internal desks and keeps public IPs only on the Internet edge. What is the primary purpose of using private IPv4 space internally?
- County courts needs an internal-only address plan for a SCADA island that must not use public Internet space. Which block is appropriate private IPv4 addressing?
- A public health clinic uses only private IPv4 on clinic PCs. Why can those addresses alone not reach citizen Internet destinations?
- A building permits desk dual-stacks a new clinic LAN and must put a valid IPv6 global unicast prefix on the SVI. Which action meets that requirement?
- A fire district shortens 2001:0db8:0000:0000:0000:0000:0000:0001 for city documentation. Which compressed form is correct?
- Police records verifies a dual-stack staff SVI should use a /64. Which check confirms the interface has the intended IPv6 prefix length?
- Sanitation receives a 2001:db8:abcd::/48 county allocation and must give each building a /64. How many /64s does that /48 provide?
- A wastewater plant checks that a newly enabled dual-stack kiosk learned usable IPv6 parameters. Which set of host checks best confirms basic IPv6 readiness?
- Stormwater printers only need on-link discovery on their VLAN and will not be Internet-reachable. Which IPv6 unicast type is always present for local link operations even without a global address?
- A tax assessor places the same IPv6 service address on responders at redundant clinics so clients reach the nearest instance. Which address type is being used?
- An election office sees FF02::1 traffic used during Neighbor Discovery on a staff VLAN. What role does this IPv6 address type play?
- A 911 PSAP derives a static host’s IPv6 interface identifier from MAC 00:1A:2B:3C:4D:5E using modified EUI-64. Which statement correctly describes that formation?
- A municipal hospital documents addressing for an air-gapped lab that must never be Internet-routed. Which IPv6 unicast type fits that internal-only design?
- A community college district images a Windows clerk PC and must confirm IPv4 address, mask, gateway, and DNS before handoff. Which approach best verifies those client parameters?
- An airport authority’s macOS field-inspector laptop cannot reach intranet apps over Wi-Fi. What should be verified first among client IP parameters?
- A port authority Linux kiosk must prove IPv4/IPv6 and default-route settings before opening day. Which action best verifies those Linux client parameters?
- A housing authority packs 2.4 GHz access points around hearing rooms and must reduce co-channel interference. Which channel plan best follows nonoverlapping 2.4 GHz practice?
- Parks and recreation publishes one staff WLAN and a separate guest WLAN at city hall. What does the SSID represent in that design?
- Fleet garage tablets show weak Wi-Fi through thick courthouse walls. Which RF fundamental best explains the coverage problem?
- Emergency management requires that permit tablets not send traffic in the clear on municipal Wi-Fi. What wireless principle addresses that need?
- A library consortium is packing extra access points into a gymnasium voting center and must balance channel width against interference. What planning choice best matches that wireless trade-off?
- A transit authority consolidates several physical servers into virtual machines on one hypervisor in the civic data room. What fundamental benefit does that server virtualization provide?
- A water utility packages a lightweight permit-API worker as a container rather than a full virtual machine. At CCNA fundamentals depth, how do containers differ from VMs?
- A school district isolates SCADA routing from corporate routing on the same PE-style edge device. Which virtualization concept provides separate routing and forwarding tables for that separation?
- City hall runs all election applications as virtual machines on a single hypervisor host. What risk awareness should the campus team emphasize about that design?
- Animal control watches a closet switch learn a clerk PC’s MAC address and later age the entry out after the laptop sleeps. What switching behavior does that illustrate?
- Code enforcement expects a known unicast frame to leave only the switch port where the destination MAC was learned. What forwarding behavior is that?
- A public works yard sees an unknown unicast frame flooded out every port in the VLAN except the one where it entered. What switching concept explains that?
- County jail IT inspects the switch MAC address table to locate which closet port a rogue camera is using. What does that table primarily provide?
- A museum campus predicts that a broadcast ARP request will reach every host in the same VLAN. What switching concept supports that prediction?
Network Access · 60 questions
- A city clerk needs separate normal-range VLANs for permits staff and public kiosks to work across two wiring closets. What must be true for those VLANs to span both switches?
- County courts marks desk ports as access in the data VLAN and attaches IP phones that also need a voice VLAN. What access-port pattern supports phones and PCs on one cable?
- A public health clinic left unused switch ports in VLAN 1 and wants safer default-VLAN hygiene. What practice best addresses that risk?
- Building permits clerks in VLAN 20 must reach a file server in VLAN 30. What is required for that communication?
- A fire district expects Layer 2 adjacency for printers between two closet switches. What verification matters most before that adjacency works end to end?
- Police records assigns inspector desk ports only to the field-ops VLAN and does not want trunking toward those PCs. What port configuration matches that intent?
- Sanitation plans for IP phones and PCs to share one cable into the closet switch. Which VLAN design supports that coexistence on the access port?
- A wastewater plant moves public Wi-Fi users into a dedicated VLAN isolated from finance servers. What is the primary purpose of that VLAN segmentation?
- Stormwater sees inter-VLAN traffic fail until an SVI or router-on-a-stick comes online. What does that outage demonstrate?
- A tax assessor documents which normal-range VLAN IDs map to which municipal departments. What characterizes those normal-range VLAN IDs in CCNA campus practice?
- An election office converts a closet uplink so multiple VLANs can reach distribution. What is the purpose of making that interswitch link a trunk?
- A 911 PSAP standardizes tagging on all municipal interswitch links. Which encapsulation is the modern Ethernet trunk standard for that design?
- A municipal hospital campus sees risk when native VLAN IDs differ at each end of a trunk. What is the concern with that native VLAN mismatch?
- A community college district wants the guest VLAN pruned from the courts closet trunk. What trunk feature enforces that least-privilege filtering?
- An airport authority finds a VLAN works inside one building but not across buildings after the interswitch trunk is administratively down. What does that demonstrate?
- A port authority keeps native VLAN traffic untagged on the city-hall uplink while all other municipal VLANs ride tagged. Which 802.1Q trunk behavior matches that design?
- A housing authority expects interswitch VLANs and CDP or LLDP neighbors across a fiber between two closets, but the link stays access-mode on one side. What must be true before multi-VLAN traffic can cross?
- Parks and recreation wants to harden city-hall trunks by moving the native VLAN away from its factory default. Which change best matches that hygiene step?
- A fleet garage inventories Cisco closet switches before a weekend cutover and needs a quick view of directly connected Cisco neighbors. Which approach fits?
- An emergency-management office needs multi-vendor cameras and phones to advertise identity to the access switches. Which discovery choice fits that mixed environment?
- A library consortium documents a mixed campus and must contrast Cisco-proprietary discovery with standards-based discovery. Which comparison is accurate?
- A transit authority security review flags public kiosk ports that still send discovery advertisements. What hardening step addresses that risk?
- A water utility needs to confirm which distribution interface faces an access stack during documentation. Which Network Access use of discovery protocols fits?
- A school district IT team bundles two fiber uplinks with LACP so a single member failure should not drop the entire path. What outcome should they expect from a healthy EtherChannel?
- City hall campus design calls for an EtherChannel between access and distribution that still carries multiple municipal VLANs. Which description is correct?
- Animal control needs a bundled uplink between core Layer 3 devices that forwards routed municipal traffic rather than switching VLANs. Which EtherChannel type fits?
- Code enforcement is forming an EtherChannel for the parks closet and must avoid unstable members. Which prerequisite most directly supports a stable LACP bundle?
- Public works wants proof that LACP negotiated a working port-channel for the yard uplink rather than leaving members suspended. What should the operator verify?
- County jail IT wants backup flows to use both members of an EtherChannel rather than pinning everything to one fiber. Which concept explains that behavior?
- A museum campus prefers negotiated bundling between exhibit-hall switches so cabling mistakes are caught early. Why choose LACP negotiation instead of forcing the channel on?
- A city clerk must decide which switch should be the primary root for the civic-core Rapid PVST+ instance. What concept guides that choice?
- After a county courts closet uplink fails, an engineer reviews Rapid PVST+ roles on the remaining redundant path. Which role description is accurate?
- A public health clinic watches Rapid PVST+ during reconvergence after a fiber cut. Which statement about port states is most accurate for that event?
- A building permits desk enables a feature on edge ports facing clerk PCs so those ports skip lengthy listening delays when a PC boots. Which Rapid PVST+ edge feature is that?
- A fire district applies protection on PortFast edge ports so an unexpected switch cannot join the spanning tree through a wall jack. Which feature matches that goal?
- Police records places a safeguard on distribution downlinks so an access switch cannot take over as spanning-tree root. Which feature provides that control?
- Sanitation is worried about unidirectional uplink faults between redundant closets creating a forwarding loop. Which Rapid PVST+ feature addresses that class of problem?
- A wastewater plant considers suppressing BPDUs on certain ports with BPDU filter and must understand the tradeoff versus BPDU guard. Which statement is accurate?
- After stormwater engineers tune bridge priority on the city-hall core, they need to confirm Rapid PVST+ elected the intended root. What should they verify?
- A tax assessor documents the municipal Rapid PVST+ topology and must identify which ports are not forwarding on redundant paths. Which roles describe those non-forwarding backups?
- An election office must choose Wi-Fi for city libraries: standalone APs configured one by one, or APs managed from a wireless LAN controller. Which architecture choice matches centralized policy control?
- A 911 PSAP places campus APs in local mode so user traffic tunnels to a wireless LAN controller. Which statement best describes that mode?
- A municipal hospital branch has a thin WAN link to the central wireless LAN controller. Which AP behavior trade-off best fits that constrained reachability?
- A community college district compares a single small clinic Wi-Fi closet with a multi-building campus. Which wireless architecture match is most appropriate?
- An airport authority must change an SSID and security profile across dozens of APs overnight. Why does a WLC-centric design simplify that change?
- A port authority places APs on access ports in an AP VLAN and connects the WLC uplink with link aggregation. Which physical infrastructure statement is correct?
- A housing authority wants the wireless LAN controller uplink to survive a single switch-port failure and carry more aggregate bandwidth. Which design element should they verify?
- Parks and recreation is cabling closet switches for Wi-Fi. How should port modes typically differ for APs versus uplinks toward distribution or a WLC?
- A fleet garage mounts APs in the ceiling and expects them to boot from the closet switch with no local AC brick. What physical dependency must be planned?
- An emergency-management office documents connectivity so APs can reach the wireless LAN controller. Which path must exist for CAPWAP or AP management?
- A library consortium will retire clear-text remote CLI on all municipal routers. Which management access method should replace Telnet?
- A transit authority cannot reach a router over the management VRF after a change. Which access method is best for out-of-band recovery at the device?
- A water utility manages switches and a WLC through browser GUIs and must stop sending management credentials in the clear. What should administrators enable and prefer?
- A school district wants network-device logins checked against a central server instead of only local usernames on each switch. Which approach fits?
- City hall evaluates management for a few small remote clinics that lack on-site network staff. Which access model is being considered when devices are administered from a cloud dashboard instead of only on-box accounts?
- Animal control creates a staff WLAN on the wireless LAN controller GUI. Which configuration elements are essential for that new WLAN to be usable?
- Code enforcement must lock the inspector WLAN to the required security profile in the WLC GUI before opening day. What should be configured?
- Public works enables voice over WLAN for yard supervisors and applies a QoS profile on that WLAN in the controller GUI. What is the purpose of that profile?
- County jail IT reviews advanced WLAN GUI settings that can affect how clients roam across APs in a large atrium. What should they understand about those settings?
- A museum campus checks the WLC GUI before a gallery opening. What verification confirms the staff WLAN can accept clients on the right network?
IP Connectivity · 75 questions
- A city clerk examines the edge router after adding a clinic subnet and sees a code letter next to the new route. What does that routing protocol code indicate?
- County courts staff read a routing table entry for a new clinic subnet. Which component identifies the destination network the router can reach?
- A public health clinic reviews a new route on the edge router. What does the network mask or prefix length on that entry tell the operator?
- A building permits desk looks up a clinic prefix in the edge routing table. Which field identifies where the router sends packets next for that destination?
- A fire district sees two sources advertising overlapping paths to a clinic subnet and checks the administrative distance on each candidate route. What does AD tell them?
- A police records bureau technician reads the edge router routing table after a new clinic subnet is added and sees two OSPF routes to the same prefix with different costs. Which field should the technician use to choose the preferred path within OSPF?
- A sanitation department engineer checks the edge router after adding a remote pump-station subnet and needs to confirm where unknown destinations are sent. Which routing-table concept identifies that fallback path?
- A wastewater plant operator reads a routing-table entry that begins with the code letter O after a new clinic subnet is learned. What does that routing protocol code indicate?
- A stormwater bureau technician reviews a routing-table line for a new clinic subnet and must identify which network the entry describes. Which component is the destination prefix?
- A tax assessor network tech reads a route for a new clinic subnet written as 10.55.8.0/22 and must interpret the network mask. What does that prefix length tell the technician?
- An election office engineer reads the edge router table after a new clinic subnet appears and must find where packets for that prefix are forwarded next. Which field identifies that next hop?
- A 911 PSAP technician sees the same clinic prefix learned from OSPF and from a static route and must understand which source the router prefers. Which routing-table field expresses that preference among sources?
- A municipal hospital campus engineer compares two OSPF paths to a new clinic subnet that share the same prefix and administrative distance. Which value decides the preferred path inside OSPF?
- A community college district admin verifies the edge router after a topology change and needs traffic for unknown destinations to leave toward the ISP. Which routing-table concept confirms that fallback?
- An airport authority technician reads a routing-table entry marked with S after a new clinic subnet is added manually. What does that routing protocol code mean?
- A building permits desk has both a 10.20.0.0/16 summary and a 10.20.40.0/24 route toward a clinic lab subnet on the edge router. For a packet to 10.20.40.15, which forwarding rule decides the path?
- A fire district edge router learns 10.30.5.0/24 from OSPF (AD 110) and also has a static route to the same prefix with AD 1. Which path does the router install for that prefix?
- A police records bureau router has two OSPF routes to the same clinic prefix with equal administrative distance but costs 20 and 45. How does the router choose the best path?
- A sanitation department has a summary static for 10.60.0.0/16 toward the core and a more-specific static for 10.60.18.0/24 toward a pump-station router. Where are packets to 10.60.18.40 forwarded?
- A wastewater plant configures a primary OSPF-learned path to a clinic subnet and a backup static route with administrative distance 210 to the same prefix. When does the floating static enter the routing table for forwarding?
- A stormwater bureau router receives two OSPF LSAs for the same equal-length clinic prefix with costs 15 and 30. Which statement correctly describes the forwarding choice?
- A tax assessor edge router has a network route 10.70.2.0/24 and a host route 10.70.2.50/32 for a VIP assessment server. Which path forwards packets destined to 10.70.2.50?
- An election office router has a directly connected interface for 10.80.1.0/24 and also receives an OSPF advertisement for 10.80.1.0/24 from a misconfigured neighbor. Which source does the router prefer for that prefix?
- A 911 PSAP engineer compares candidate routes and recalls the forwarding order. After administrative distance has already selected a single routing source for a prefix, what is compared next among remaining candidates from that source?
- A municipal hospital campus router has a default route 0.0.0.0/0, a 10.0.0.0/8 summary, and a 10.25.4.0/24 clinic route. For a packet to 10.25.4.20, which route is used?
- A community college district router learns the same /24 clinic prefix from EIGRP (AD 90) and OSPF (AD 110). Which route enters the routing table?
- An airport authority router has two candidate paths to the same clinic prefix from the same protocol with equal administrative distance. What breaks the tie for which path is preferred for forwarding?
- A police records bureau needs all unknown Internet-bound traffic from the edge router to reach the ISP after a WAN redesign. Which static routing approach meets that need?
- A sanitation department must reach a remote municipal subnet 10.90.16.0/24 through a neighboring router at 10.1.1.2 after a topology change. Which static route type is appropriate?
- A wastewater plant needs traffic for a single SCADA server at 10.91.5.20 to take a dedicated next hop different from the rest of its /24. Which static route accomplishes that?
- A stormwater bureau keeps a primary OSPF path to the treatment plant and wants a static backup that installs only if that path disappears. How should the floating static be configured?
- A tax assessor edge router must send unknown IPv4 destinations toward the civic Internet firewall. Which static configuration provides that gateway of last resort?
- An election office dual-stack edge must forward unmatched IPv6 traffic to the upstream provider. Which static meets that need?
- A 911 PSAP router must reach a remote clinic LAN at 10.40.12.0/24 across a leased WAN. Which IPv4 static best describes that path?
- A municipal hospital campus router must reach a remote building’s IPv6 LAN prefix 2001:db8:44:10::/64. Which static is appropriate?
- A community college district needs traffic for one records server at 10.88.5.20 to take a dedicated path. Which IPv4 static matches that requirement?
- An airport authority must pin IPv6 traffic for one dual-stack appliance at 2001:db8:9:1::50 to a specific uplink. Which static does that?
- A port authority’s primary WAN carries OSPF routes to the customs warehouse; a backup circuit should take over only when that WAN fails. What IPv4 design fits?
- A housing authority dual-stack site needs an IPv6 backup path that stays out of the table while a preferred dynamic IPv6 route is present. What approach is correct?
- Parks and recreation staff ask whether a default static should list a next-hop IP or only an exit interface on an Ethernet multipoint segment. What CCNA-level guidance applies?
- A fleet garage installs a static network route whose next hop is not on a directly connected subnet. What must the router be able to do for that static to forward?
- Emergency management has a /24 route to a shelter subnet but needs one VIP camera at 10.70.3.50 to use a different uplink. How does a host static accomplish that?
- A library consortium wants a backup static to remain standby while OSPF (AD 110) owns the primary path. Which administrative distance choice is correct for the floating static?
- A transit authority technician adds an IPv4 static to a park-and-ride LAN and must confirm it is active. What indicates successful installation?
- A water utility configures an IPv6 static to a remote SCADA /64 and needs to verify forwarding. What confirms the route is installed?
- School district IT adds an IPv4 default static on the edge router. What routing-table outcome should they expect for unmatched destinations?
- City hall must reach a remote annex VLAN 10.55.20.0/24 across a point-to-point municipal WAN. Which static network route design is appropriate?
- A stormwater bureau brings up single-area OSPFv2 between clinic WAN routers. Which condition is required for a neighbor adjacency to form?
- A tax assessor WAN uses a serial point-to-point link for single-area OSPFv2. What is true about DR/BDR election on that link type?
- An election office runs single-area OSPFv2 on an Ethernet segment shared by several clinic routers. Why does OSPF elect a DR and BDR there?
- A 911 PSAP wants a stable OSPFv2 identity on clinic WAN routers so neighbor relationships do not churn when interfaces flap. What should they configure?
- A municipal hospital campus verifies single-area OSPFv2 after enabling interfaces toward clinic routers. Which neighbor state indicates a successful adjacency for route exchange?
- A community college district configures OSPFv2 between exactly two WAN routers on a point-to-point circuit. Which network-type behavior should they expect?
- An airport authority Ethernet segment runs OSPFv2 among three routers with equal Hello parameters. Which factor most directly decides who becomes DR?
- A port authority notices OSPFv2 router IDs changing after WAN interfaces bounce because selection followed the highest IP. What practice prevents that instability?
- A housing authority designs OSPFv2 so clinic WAN routers and campus edge routers share one common area for all municipal prefixes. What does that single-area design mean at CCNA depth?
- Parks and recreation engineers cannot form an OSPFv2 adjacency between a recreation-center router and a clinic WAN peer. Hello/dead timers and area IDs differ on the shared link. What is the most likely concept-level cause?
- A fleet garage WAN uses a dedicated fiber point-to-point link between two OSPFv2 routers and sets the OSPF network type to point-to-point. What benefit does that choice provide?
- An emergency-management office runs OSPFv2 on a multi-access Ethernet segment connecting several municipal routers. Why does OSPF elect a Designated Router on that broadcast segment?
- A library consortium documents OSPFv2 router IDs on each clinic WAN router. What primary role does the OSPF router ID play?
- Transit authority staff need to confirm whether two single-area OSPFv2 routers have successfully become neighbors after a clinic WAN cutover. Which action best matches that CCNA verification goal?
- A water utility wants OSPFv2 enabled so pump-station and treatment-plant prefixes exchange inside one area only. What correctly describes that single-area OSPFv2 goal?
- School district IT runs OSPFv2 on an Ethernet LAN where a Backup Designated Router is present. What is the BDR’s main purpose if the Designated Router fails?
- City hall campus engineers set OSPFv2 network types so a fiber point-to-point WAN peer matches the garage router’s expectation. Why does choosing the correct OSPF network type matter?
- Animal control changes a manually configured OSPFv2 router ID on a clinic edge router. What operational awareness should the team have?
- Code enforcement cannot bring up OSPFv2 neighbors on a link where one router is in area 0 on 10.10.10.0/30 and the peer is in area 5 on 10.20.20.0/30. What prerequisite issue should they fix first?
- A public works yard needs municipal LAN and WAN prefixes advertised into OSPFv2 so other single-area routers learn those routes. What action achieves that goal?
- A city clerk wants two edge routers to share a virtual gateway IP so desk PCs keep one stable default gateway. Which approach matches that first-hop redundancy purpose?
- County courts compare gateway redundancy so PCs keep one default gateway while one router forwards and another stands ready. Which FHRP concept describes that behavior?
- A public health clinic plans for WAN router failure without re-addressing every PC’s default gateway. What does FHRP provide in that situation?
- A building permits desk has two Layer 3 exits serving the same access VLAN of clerk PCs. When is a first hop redundancy protocol appropriate?
- A fire district verifies behavior after the standby FHRP router becomes active. What should remain continuous for hosts at a conceptual level?
- Police records staff consider giving half the bureau PCs gateway A and half gateway B with no redundancy protocol. Why is an FHRP virtual IP a better first-hop design?
- Sanitation engineers explain that FHRP protects the first hop for hosts on a VLAN. How does that scope differ from a dynamic routing protocol?
- A wastewater plant schedules maintenance on one gateway router serving the public-health VLAN. How does FHRP help operations during that window?
IP Services · 5 questions
- A city clerk needs inside private desk addresses translated to public addresses from a configured pool for Internet access from city hall. Which NAT approach fits?
- County courts need an internal citizen-portal server reachable at a fixed public IP. Which inside source NAT method provides that one-to-one mapping?
- After applying inside source NAT on the clinic edge, public health staff want proof that clerk traffic is creating translations. What should they verify?
- A building permits desk chooses between static NAT and a dynamic NAT pool. When is static inside source NAT the better fit?
- A fire district configures closet switches to synchronize time from a core NTP server. What NTP role are those closet switches playing?
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