Networking Concepts

An enterprise network architect is designing a multi-VRF network infrastructure where clients in remote subnets must receive IP leases from a centralized DHCP server cluster while maintaining accurate physical switch-port tracking and automated domain name registration. Which TWO of the following configurations or mechanisms must be implemented to fulfill these requirements?

A network engineer is provisioning subnets from the parent address block $192.168.64.0/20$ for a newly constructed facility. The primary VLAN requires capacity for at least $100$ usable host IP addresses while minimizing wasted address space. If the engineer allocates the first available valid subnet from this block that satisfies the host capacity requirement, what is the broadcast address of this allocated subnet?

A network administrator is verifying the automatic IPv6 interface configuration of a host. The host network adapter has a MAC address of 00:1A:2B:3C:4D:5E. Which IPv6 link-local address is generated for this interface using the Modified EUI-64 format?

A network engineer is reviewing a protocol analyzer capture during an active client-server session. The log shows explicit control checkpoints being inserted into the data stream to allow recovery and resume capabilities, as well as managing dialog control to regulate which side can transmit. Which OSI model layer is primarily responsible for managing these session synchronization points and dialog modes?

Match each core IP addressing service or infrastructure component on the left with its primary operational function on the right.

A network technician is configuring a local subnetwork for a department that requires a $/27$ prefix length. How many usable host IPv4 addresses can be assigned to devices within this subnetwork?

A network technician is performing a protocol analyzer capture to inspect traffic traversing an enterprise IPv6 router interface. Which of the following statements accurately describe the characteristics of IPv6 base headers and link-local addressing? (Select TWO.)

A network administrator is troubleshooting an issue where new IP phones on VLAN 50 ($10.50.0.0/24$) successfully obtain IPv4 leased addresses and default gateway settings from a centralized DHCP server located on VLAN 10 ($10.10.0.100$), but repeatedly fail to locate their TFTP provisioning server ($10.10.0.200$) and fail to sync time with the corporate NTP server ($10.10.0.10$). The layer 3 switch interface for VLAN 50 is configured with `ip helper-address 10.10.0.100`. Packet captures on the switch show DHCP requests are forwarded, but TFTP and NTP requests sent via broadcast during initial boot are dropped. Which configuration modification on the layer 3 switch will directly resolve the provisioning and time synchronization failure for the endpoints on VLAN 50?

A network engineer is provisioning subnets for an enterprise database cluster within the allocated block $172.22.140.0/22$. The designated subnet for this VLAN is $172.22.142.128/25$. Which of the following IPv4 addresses represent valid usable host addresses that can be statically assigned to database interfaces in this subnet? (Select ALL that apply.)

A system administrator is configuring a subnet for a new department containing 45 desktop computers and 3 network printers. Which of the following CIDR prefix lengths provides the minimum necessary capacity to accommodate all 48 devices while minimizing wasted IP addresses?

A network administrator is designing a local network topology across two switches using multiple VLANs and an 802.1Q trunk link. Which TWO of the following statements correctly describe Layer 2 switch operations and VLAN encapsulation in this environment?

A network technician is configuring an email client to retrieve user messages securely from a remote mail server using implicit TLS encryption. Which default port number should be configured for the Internet Message Access Protocol Secure (IMAPS)?

A network administrator needs to connect two routers across a redundant network infrastructure. The administrator wants the routers to automatically exchange reachability information and update their routing tables dynamically whenever a network path fails. Which of the following options should be configured to meet this requirement?

A network engineer intends to establish a redundant path to a remote office subnet $10.45.0.0/16$. The primary path learns the route dynamically via eBGP (administrative distance of $20$). The engineer attempts to configure a backup floating static route through an IPsec tunnel interface, intended to activate only if the primary eBGP session fails. However, the engineer enters the configuration command: `ip route 10.45.0.0 255.255.0.0 172.16.1.2 15`. Under normal operating conditions with both connections active, which path will the router install into the routing table for traffic destined to $10.45.12.30$, and why?

Match each core IP addressing service component to its corresponding primary functional role within an enterprise network architecture.

A network administrator is establishing stateful firewall rules to allow remote administrative workstations to securely manage internal Linux servers via encrypted command-line sessions and authenticate against a directory server using SSL/TLS encryption. Unencrypted management traffic must remain strictly blocked. Which TWO port and transport protocol combinations must be explicitly permitted to support these administrative requirements? (Select TWO.)

A network administrator is designing a dedicated, fault-tolerant interconnect architecture for $5$ mission-critical database nodes within a single data center rack. To ensure continuous operation without a central point of failure, every node must have a direct point-to-point physical cable connection to every other node in the cluster. Which network topology is being implemented, and what is the total number of physical cabling links required for this configuration?

In an enterprise network running Per-VLAN Spanning Tree Plus (PVST+), two switches (Switch A and Switch B) are interconnected. Switch A has a base MAC address of 00:11:22:33:44:55 and is configured with an STP base priority of 28672 for VLAN 50. Switch B has a base MAC address of 00:11:22:33:44:AA and currently operates with the default STP base priority of 32768 for VLAN 50. A network administrator wants Switch B to become the Root Bridge for VLAN 50. Which priority value must be configured on Switch B for VLAN 50 to guarantee it becomes the Root Bridge?

When a router receives route advertisements from different sources for the exact same destination network, it evaluates their trustworthiness using Administrative Distance (AD). How should the following route sources be ordered from the lowest administrative distance (most trustworthy) to the highest administrative distance (least trustworthy)?

A network security team is replacing insecure legacy protocols across core infrastructure routers. The new baseline policy requires allowing only encrypted protocols for remote command-line administration and web-based graphical configuration. Which TWO of the following transport protocols and default port numbers must be permitted through the administrative management access control list (ACL) to meet these requirements?