Networking Concepts

A network administrator is assigning static IP addresses to virtual machine interfaces within a subnet designated as $10.200.45.64/27$. Which of the following IP addresses represent valid usable host addresses within this subnet? (Select TWO)

A network administrator is configuring a firewall rule to allow secure remote graphical management from an internal administrative jump host to a pool of Windows application servers. To enforce the principle of least privilege, the firewall policy should strictly limit access to the standard Remote Desktop Protocol (RDP). Which transport protocol and destination port combination must be permitted in the firewall policy?

A network technician is provisioning a new subnet for an office department that requires static IPv4 addresses for $50$ workstation computers and $4$ network printers. Which of the following CIDR prefix lengths represents the smallest subnet mask that will accommodate all required devices while conserving address space?

A network administrator is analyzing packet captures on a core router interface to troubleshoot routing updates. The administrator observes routing protocol packets being encapsulated directly into Layer 3 IP payloads using IP protocol number 89, without using Layer 4 Transport Layer headers such as TCP or UDP. Which of the following dynamic routing protocols is generating these packet captures?

A network administrator is troubleshooting an issue where secondary DNS servers are unable to complete full zone transfers from the primary master DNS server across an internal firewall boundary. Standard client host name lookup queries across the firewall operate successfully. Which transport layer protocol and port number must be permitted on the firewall to allow zone transfers to complete?

An enterprise network administrator is deploying a new edge connection to an external Internet Service Provider (ISP) to exchange public routing information across autonomous boundaries. The internal network currently uses OSPF for internal routing. Which routing protocol should be deployed on the edge router facing the ISP, and what is the primary reason for this selection?

A network engineer is configuring a default gateway for a VoIP phone subnet that has been allocated the IPv4 address block $172.20.48.0/20$. Which of the following IP addresses represents the last usable host address available for assignment within this subnet?

A network administrator is designing an IPv4 subnet for a new regional warehouse facility. The facility requires static and dynamic IP address assignments for $115$ endpoint devices, including inventory scanners, workstation PCs, and network printers. What is the maximum number of usable host IP addresses available in the smallest CIDR subnet mask that satisfies this host requirement?

A network operations engineer is auditing firewall configurations and service rules across enterprise infrastructure. Match each protocol and default transport port on the left with its corresponding functional application on the right.

Match each routing decision concept on the left with its corresponding description in router path selection on the right.

A cloud network engineer is provisioning a subnetwork for a microservices cluster within a virtual private cloud (VPC). The subnetwork is assigned the IPv4 block $10.240.12.128/25$. Which of the following IPv4 addresses represents the last usable host IP address that can be assigned to a container instance in this subnet?

A network administrator is assigning IPv4 addresses to host interfaces within a newly provisioned subnet allocated the address block $10.100.16.64/27$. Which of the following IPv4 addresses are valid usable host IP addresses within this subnet? (Select TWO.)

A network monitoring engineer is configuring internal firewall rules to allow enterprise routers and switches to send unsolicited asynchronous event notifications (traps) to a centralized Network Management System (NMS). Which transport protocol and destination port must be permitted through the firewall for the NMS collector to receive these incoming trap messages?

A network engineer is configuring a dual-homed router connecting a remote office to the corporate headquarters. The primary WAN connection dynamically receives routes via OSPF, while a secondary LTE backup link is configured using a static route to the same destination network ($10.50.0.0/16$). The administrator wants the router to automatically prefer the OSPF route under normal operations and fall back to the static route only if the primary OSPF link fails. Given that default administrative distance (AD) values are used for OSPF, which administrative distance should the administrator manually assign to the backup static route?

A network administrator is evaluating dynamic routing protocol characteristics for an enterprise LAN deployment. Which of the following operational features are specific to link-state routing protocols such as OSPF when compared to distance-vector routing protocols? (Select TWO.)

A edge gateway router receives candidate routes from multiple routing sources for the destination network $172.16.10.0/24$. The available entries are:

- An OSPF route with an Administrative Distance of $110$ and a metric cost of $45$
- An iBGP route with an Administrative Distance of $200$ and a metric of $10$
- A floating static route configured with an Administrative Distance of $130$

Which route will the gateway router install into its active routing table for traffic destined to $172.16.10.0/24$?

A network technician is setting up an automated boot-server infrastructure to distribute basic initialization configuration files to newly unboxed network switches across different subnets. The process relies on Trivial File Transfer Protocol (TFTP) for lightweight, connectionless file transfer. Which transport layer protocol and destination port number must be allowed through the intermediate firewalls to permit this traffic?

A network administrator is organizing security auditing profiles and intermediate firewall access rules for essential enterprise infrastructure services. Match each network protocol on the left with its corresponding default port and transport layer protocol on the right.

A network administrator needs to assign static IP addresses to new servers on a subnet configured with the address block $172.16.40.128/26$. Which of the following IP addresses are valid usable host addresses within this subnet? (Select TWO.)

An enterprise network operating the Open Shortest Path First (OSPF) routing protocol experiences an unexpected fiber link failure between two core routers. Place the steps of the OSPF link-state convergence process in the correct chronological order from first event to final completion.