Tüm alıştırma soruları

A network technician is configuring a dedicated point-to-point wireless link between two enterprise buildings using the IPv4 subnet $192.168.10.16/28$. What is the maximum number of usable host IPv4 addresses available for assignment to physical network interfaces in this subnet?

An enterprise router participating in an OSPF area receives a Link-State Update (LSU) packet containing a revised Link-State Advertisement (LSA) from an adjacent neighbor. Arrange the operational steps in the exact chronological sequence the router executes to process the LSA and update its routing table.

A network engineer is auditing switchport trunk configurations and frame tagging operations across enterprise switches. Match each IEEE 802.1Q trunking configuration scenario or operational event on the left with its corresponding frame behavior or interface outcome on the right.

A network administrator is designing a wireless WAN connection to aggregate traffic from six distant regional utility substations back to a primary operations center. The design requires all substations to transmit telemetry directly to the operations center, but substations do not require direct interconnectivity between each other. Which network topology provides the most cost-effective architecture while meeting these connectivity requirements?

An enterprise network topology consists of four switches (Switch-1, Switch-2, Switch-3, and Switch-4) running 802.1D Spanning Tree Protocol (STP) using default revised 802.1D-1998 / 802.1w path cost values (10 Gbps = 2, 1 Gbps = 4, 100 Mbps = 19). The switches are configured with the following parameters:

* Switch-1: Priority 4096, MAC address 0011.2233.4455
* Switch-2: Priority 8192, MAC address 0011.2233.4422
* Switch-3: Priority 32768, MAC address 0011.2233.4411
* Switch-4: Priority 32768, MAC address 0011.2233.4433

The physical interconnections and link speeds between the switches are:
* Switch-1 to Switch-2: 10 Gbps
* Switch-1 to Switch-3: 1 Gbps
* Switch-2 to Switch-4: 10 Gbps
* Switch-3 to Switch-4: 1 Gbps
* Switch-2 to Switch-3: 100 Mbps

Which THREE of the following statements accurately describe the converged STP topology, root path costs, and port roles? (Select THREE)

A network engineer is configuring a newly provisioned server rack in a data center using the assigned IPv4 subnet block $10.50.16.0/27$. What is the maximum number of usable host IPv4 addresses that can be assigned to active devices within this subnet block?

A network engineer is configuring a newly provisioned Layer 3 switch interface to relay DHCP traffic from a client subnet ($10.100.20.0/24$) to a centralized DHCP server located at $10.200.10.5$. Although the command `ip helper-address 10.200.10.5` has been applied to the client-facing VLAN interface, workstations on the subnet fail to obtain IP addresses. Packet captures on the centralized DHCP server indicate that relayed unicast packets arrive, but the server discards them because the Gateway IP Address ($giaddr$) field in the DHCP header is set to $0.0.0.0$. Which of the following configuration issues is the primary cause of this behavior?

An enterprise edge router participating in an OSPF dynamic routing domain learns three distinct paths to reach the remote subnet $10.10.0.0/16$:

- Path 1: Learned as an Inter-area route (O IA) via Router West with a calculated total metric of $45$.
- Path 2: Learned as an External Type 1 route (O E1) via Router East with a calculated total metric of $15$.
- Path 3: Learned as an External Type 2 route (O E2) via Router North with a fixed external metric of $5$.

Assuming all links are operational and default administrative distances apply, which route will the router install into its active routing table for traffic destined to $10.10.15.1$?

An enterprise network engineer configures a DHCP relay service on a Layer 3 router interface servicing a remote VoIP VLAN ($172.16.30.0/24$). When an IP phone boots up and sends a broadcast DHCPDISCOVER frame, the router encapsulates this message into a unicast IPv4 packet targeted directly at the centralized DHCP server ($10.10.5.50$). Which field in the DHCP message header does the relay agent populate with its own interface IP address ($172.16.30.1$) so that the DHCP server selects the appropriate address pool?

A network engineer is configuring an 802.1Q trunk link between `SW-CORE-01` and `SW-ACCESS-05`. Interface `GigabitEthernet 0/1` on `SW-CORE-01` is configured with `switchport trunk native vlan 50`. Interface `GigabitEthernet 0/1` on `SW-ACCESS-05` retains the default configuration of `switchport trunk native vlan 1`. Both switches have VLANs 10, 20, and 50 allowed on the trunk link.

When an untagged frame originating from an access port assigned to VLAN 50 on `SW-CORE-01` is forwarded across the trunk link, how will `SW-ACCESS-05` handle this frame upon arrival?

A network technician is deploying a new remote office client subnet (VLAN 40). Hosts connected to VLAN 40 are unable to reach the centralized DHCP server located across a Layer 3 WAN link at IP address 10.10.1.50, causing client machines to automatically receive 169.254.x.x addresses. Which of the following configuration actions on the router's VLAN 40 gateway interface will resolve this issue?

A network router interface configured with an IP helper address receives an incoming DHCPDISCOVER broadcast packet from a local host. Which of the following actions does the router perform as part of its DHCP relay operation? (Select TWO.)

An enterprise network has deployed a centralized DHCP server on VLAN 100 ($10.100.0.10/24$). Client workstations on VLAN 15 ($172.16.15.0/24$) and VLAN 25 ($172.16.25.0/24$) connect to a Layer 3 switch serving as their default gateway but fail to receive dynamic IP leases, resulting in APIPA address assignments. Which of the following configuration steps and operational mechanics must be implemented on the Layer 3 switch to resolve this issue? (Select TWO.)

A network administrator is configuring static IP address assignments for high-availability database servers within an enterprise subnet designated as $172.20.48.0/28$. Which of the following IP addresses are valid usable host IP addresses that can be assigned to these servers? (Select TWO)

A network administrator is deploying a multi-VLAN network on a Layer 3 switch. Workstations on VLAN 50 ($10.50.0.0/24$) are failing to acquire IP addresses from a centralized DHCP server ($192.168.10.10$). During troubleshooting, the administrator notices that the `ip helper-address 192.168.10.10` command was mistakenly configured on the physical trunk uplink interface connecting to the core router instead of the client subnet interface. Which configuration change must be implemented to allow VLAN 50 workstations to obtain DHCP leases?

A network administrator needs to publish an internal web server to the internet. The server is assigned a fixed private IPv4 address, and the organization requires a permanent, dedicated one-to-one mapping to a single public IPv4 address. Which NAT translation method should the network administrator implement?

A system administrator is designing an isolated VLAN for a database cluster. The cluster requires $27$ usable IPv4 addresses for database nodes, $1$ address for the default gateway, and $2$ addresses for virtual IP load balancers. Which of the following represents the smallest CIDR prefix mask that provides sufficient usable IPv4 addresses for all required devices?

Match each Network Address Translation (NAT) implementation concept on the left with its corresponding operational description and traffic mapping behavior on the right.

A workstation user initiates a file download request across a local network. Arrange the encapsulation processing steps executed by the host's networking stack in the correct chronological order, starting from the application request down to physical cable transmission.

A network administrator is auditing the core network architecture to ensure proper service deployment across enterprise subnets. Match each IP addressing service or feature on the left with its corresponding operational role on the right.