Network Implementation

A technician is deploying three access points in the 2.4 GHz band across a small office to provide overlapping coverage without co-channel interference. Which set of channels should be configured on the three APs to avoid overlapping frequencies in North America?

A company is deploying wireless access points in a newly renovated conference center that frequently hosts large events with hundreds of attendees. The IT team reports severe congestion and co-channel interference on the existing network, which operates only on the 2.4 GHz and 5 GHz bands. Management wants the new deployment to take advantage of a wide, uncongested spectrum with many non-overlapping channels to support high client density. Which wireless standard should the team specify for the new access points?

A company is deploying new access points in a densely populated office building. The IT team wants maximum throughput for modern laptops and phones while minimizing interference from neighboring businesses' networks and common office devices like microwaves and Bluetooth peripherals. Which frequency band should be prioritized for these high-performance clients?

A network technician configures an interface between two switches to carry traffic for VLANs 10, 20, and 30. On this link, how are frames from each VLAN distinguished as they traverse the connection?

A company is establishing a direct connection to two different Internet service providers to achieve redundancy and control which provider is used for outbound traffic based on organizational policy. The network engineer needs to select a routing protocol that can exchange routes between the company's network and both ISPs, each of which operates as a separate administrative entity. Which routing protocol is designed for this requirement?

A network administrator is configuring a small branch router that connects to the corporate data center over a single WAN link. The branch router only needs to reach internal corporate subnets and the internet, both of which are reachable through the same upstream router. The admin wants the simplest configuration that forwards all traffic destined for unknown networks to the upstream device. Which routing configuration best meets this requirement?

A regional company is expanding from 3 branch offices to over 40 offices connected in a partial-mesh WAN. The network administrator currently maintains all routes manually and spends significant time updating configurations whenever a link changes or a new site comes online. Management wants a solution that automatically adapts to topology changes and reduces administrative overhead across the growing internal network. Which routing approach should the administrator implement?

A network administrator is designing the routing configuration for a company that uses Cisco routers exclusively throughout its enterprise. Management wants a routing protocol that converges quickly, uses a composite metric based on bandwidth and delay, and is simpler to configure than a link-state protocol. Which routing protocol best meets these requirements?

A network technician is called to a small server room where switches and routers have begun intermittently rebooting during afternoon hours. The room has no windows, and the technician notices the equipment enclosures feel very warm to the touch. Temperature logs show readings climbing above 30°C (86°F) each afternoon. Which environmental factor should the technician address FIRST to resolve the reboots?

A network administrator wants hosts on a subnet to continue reaching the internet even if their default gateway router fails. Two Cisco routers are available. The administrator configures both routers to share a single virtual IP address that clients use as their default gateway, with one router acting as active and the other as standby. Which technology is being implemented?

A network administrator notices that the single 1 Gbps uplink between two access switches is saturating during peak hours, causing slow file transfers between departments. Both switches have several unused 1 Gbps ports available. The administrator wants to increase the available bandwidth between the switches and provide redundancy without replacing hardware. Which technology should be configured?

A technician is troubleshooting a switch where a specific server's traffic is being flooded out of every port in its VLAN instead of being forwarded only to the port where the server is connected. Packet captures on unrelated devices show frames destined for the server's MAC address. What is the MOST likely reason the switch is behaving this way?

A small office has 30 internal workstations using private IP addresses in the 192.168.10.0/24 range. The company has been assigned only a single public IPv4 address from their ISP. The network administrator needs to configure the edge router so that all 30 workstations can simultaneously access the internet using that one public address. Which technology should the administrator configure?

A network engineer runs OSPF on all routers in a campus network. Between the core router and a remote building router, two paths exist: Path 1 traverses a single 1 Gbps fiber link, and Path 2 traverses three 10 Gbps links in series. Assuming default OSPF cost calculations and no manual cost adjustments, which path will OSPF choose to reach the remote building, and why?

A network administrator configures a router with both a static route and an OSPF-learned route to the same destination network, 10.20.0.0/16. Both routes point to different next-hop routers. Assuming default settings, which route will the router install in its routing table and use to forward traffic?

A network technician is terminating horizontal cabling runs from wall jacks in a new office suite. The cables enter the telecommunications room and must be organized so that patch cords can later connect each run to a switch port. Which component should the technician terminate these permanent cable runs onto using a punch-down tool?

A network technician is deploying 30 IP phones and 6 wireless access points from a single access switch. Each phone requires up to 7W and each access point requires up to 25.5W. The switch specification sheet lists a total PoE power budget of 370W. After connecting all devices, several access points fail to power on. What is the MOST likely cause?

A network technician is deploying new wireless access points that each require up to 25.5 W of power delivered over the Ethernet cable. The existing switch only supports the original 802.3af standard. Which action will allow the switch to properly power these access points?

A technician is installing an outdoor PTZ (pan-tilt-zoom) security camera that requires 45 watts of power delivered over the same Ethernet cable used for data. The existing access switch supports only 802.3af. Which action allows the camera to receive sufficient power?

A network technician notices that employees are plugging unauthorized switches and personal devices into wall jacks in a conference room. Management wants each access port to allow only the first device that connects and to automatically retain that device's MAC address in the running configuration. Which switch feature and setting best accomplishes this goal?