Tüm alıştırma soruları

An enterprise router receives an internal EIGRP route for the summary prefix 172.16.0.0/16 (Administrative Distance 90) and learns a specific path for subnet 172.16.10.0/24 via OSPF (Administrative Distance 110). A network engineer attempts to configure a backup floating static route for destination 172.16.10.0/24 using the command `ip route 172.16.10.0 255.255.255.0 192.168.1.2 100`. Under normal operating conditions while all links remain fully operational, which routing behavior will occur for traffic sent to host 172.16.10.50?

A Cisco router receives an IPv4 packet destined for host $192.168.10.45$, which matches a static route configured strictly with a next-hop IP address ($10.0.0.2$) rather than an exit interface. Arrange the operational steps in the exact sequence the router executes to process, resolve, and forward this packet.

Router R1 connects an enterprise edge network to two service providers, ISP-A and ISP-B. The primary default path is dynamically learned from ISP-A via eBGP, which assigns an Administrative Distance (AD) of $20$. A network engineer needs to configure a floating static default route toward ISP-B through next-hop IP $198.51.100.1$ as a redundant backup path that will remain inactive in the routing table until the primary eBGP path fails. Which Cisco IOS command correctly achieves this objective?

A network administrator initializes OSPFv2 on a Cisco router named R1. The router has the following interface states and IP addresses configured prior to starting the OSPF process:

- Interface GigabitEthernet0/0: IP address 172.16.10.1/24 (Up/Up)
- Interface GigabitEthernet0/1: IP address 192.168.1.254/24 (Up/Up)
- Interface Loopback0: IP address 10.1.1.1/32 (Up/Up)
- Interface Loopback1: IP address 10.2.2.1/32 (Administratively Down)

The administrator enables OSPF process 1 without explicitly setting a router ID. After OSPF initializes, the administrator enters `router-id 1.1.1.1` under the `router ospf 1` process configuration prompt and changes Loopback1 to the Up/Up state. No further commands are entered.

Which two statements correctly describe the resulting OSPF Router ID behavior on router R1? (Select two.)

A network administrator needs to configure reliable static default routing on a Cisco IOS router by tying a primary static route to an IP SLA probes object, ensuring that the route is automatically withdrawn if the target becomes unreachable. Arrange the operational and CLI configuration steps in the correct chronological order from establishing the probe metric to static route activation.

A Cisco router initializes an OSPFv2 routing process without an explicitly configured router ID. The router currently has the following operational interfaces and statuses:

- Loopback 0: 10.254.254.1/24 (Administratively Down / Down)
- Loopback 1: 172.16.40.1/24 (Up / Up)
- Loopback 2: 172.16.100.1/24 (Up / Up)
- GigabitEthernet0/0: 192.168.10.1/24 (Up / Up)

What IP address will be selected as the OSPFv2 router ID for this router?

Match each Cisco Lightweight Access Point (AP) operational mode to its correct functional behavior and network traffic handling characteristic.

A network technician is connecting two legacy Cisco switches together using their 100BASE-TX FastEthernet ports. Auto-MDIX is manually disabled on both switch interfaces. Which unshielded twisted-pair (UTP) cable pinout specification is required to establish successful Layer 1 connectivity between these two switches?

Refer to the following partial IPv4 routing table output from a Cisco router:

text
Gateway of last resort is 172.16.1.1 to network 0.0.0.0

D 10.50.0.0/16 [90/2170112] via 192.168.12.2, GigabitEthernet0/0
O 10.50.10.0/24 [110/20] via 192.168.23.2, GigabitEthernet0/1
S 10.50.10.16/28 [1/0] via 192.168.34.2
O 10.50.10.16/30 [110/10] via 192.168.45.2, GigabitEthernet0/3
S* 0.0.0.0/0 [1/0] via 172.16.1.1

The router receives a packet destined for IPv4 address $10.50.10.18$. Which two statements correctly describe how the router processes this packet? (Select two.)

An enterprise edge router receives a primary internal route for destination prefix $10.50.0.0/16$ via Internal EIGRP (Administrative Distance 90) and a primary default route for $0.0.0.0/0$ via external BGP (eBGP, Administrative Distance 20). A network administrator needs to configure floating static routes to serve as automatic failover backups for both destinations. Which TWO configuration statements correctly specify the Administrative Distance requirements for these static routes to operate strictly as floating backups? (Select TWO.)

An enterprise Cisco router displays the following IPv4 routing table output:

text
Gateway of last resort is not set

10.0.0.0/8 is variably subnetted, 4 subnets, 4 masks
O 10.45.0.0/16 [110/65] via 192.168.1.1, 01:15:02, GigabitEthernet0/0
D 10.45.12.0/22 [90/2172416] via 192.168.2.1, 00:42:10, GigabitEthernet0/1
S 10.45.12.0/24 [1/0] via 192.168.3.1
C 10.45.12.128/25 is directly connected, GigabitEthernet0/2

Which two statements correctly describe how the router processes traffic destined to $10.45.12.150$ and interpret its routing table components? (Select two.)

A network administrator is configuring a backup floating static route to reach an external corporate subnet 172.31.50.0/24. The primary path to this destination is learned dynamically via External BGP (eBGP). During testing while the primary eBGP connection is fully operational, the administrator observes that traffic toward 172.31.50.0/24 is being forwarded across the backup static path rather than the primary link. Which static route command entry in the router configuration caused this improper failover behavior?

A network administrator needs to create a new enterprise wireless network on a Cisco Wireless LAN Controller (WLC) using the GUI. The network must use WPA2-Enterprise with 802.1X authentication via an external RADIUS server and be mapped to an existing dynamic interface. Place the configuration steps in the correct sequential order from first to last.

A network engineer is configuring OSPFv2 between two directly connected routers over a GigabitEthernet link. Although physical link connectivity is established, OSPF neighbor discovery fails and no adjacency is formed. Which two interface-level parameters must match on both routers' interconnecting interfaces for an OSPFv2 neighbor relationship to establish? (Select two.)

A branch router receives an external EIGRP route (EIGRP EX, Administrative Distance of 170) for the corporate subnet $10.200.0.0/16$ over a primary MPLS link. A network administrator must configure a floating static backup route for $10.200.0.0/16$ using the secondary ISP next-hop address $192.168.1.2$. The backup path must only be installed in the IPv4 routing table if the primary EIGRP EX path becomes unavailable. Which command must be configured on the router to achieve this requirement?

Two Cisco routers, R1 and R2, are connected via a dedicated serial link configured for OSPFv2 Area 0. A network engineer runs the command `show ip ospf neighbor` on R1 and notices that the neighbor relationship with R2 remains persistently stuck in the INIT state. Which condition is the most likely cause of this neighbor state?

A network administrator is configuring a static backup route to take over if an existing primary route learned via OSPF (Administrative Distance 110) fails. Which TWO statements describe requirements for this floating static route to function correctly as a backup?

An enterprise switch, Switch-A, is connected to neighboring switches via $802.1\text{Q}$ trunk links running Rapid PVST+. An administrator executes the command `spanning-tree vlan 10 priority 24576` on Switch-A, while all other switches in the network retain default STP settings. Which two statements correctly describe the Rapid PVST+ operations and port roles for VLAN $10$ on Switch-A?

When establishing an OSPFv2 neighbor relationship between two directly connected router interfaces, certain interface parameters must be identical. Which two parameters must match for a neighbor adjacency to form successfully? (Select two.)

A network engineer configures an OSPFv2 routing process on router R1. At startup, the router has two operational interfaces: Loopback0 configured with IP address $10.1.1.1/32$ and GigabitEthernet0/0 configured with IP address $172.16.1.1/24$. The OSPF process initializes and elects $10.1.1.1$ as its Router ID. Later, the engineer configures a new interface, Loopback1, with IP address $10.200.1.1/32$. Upon issuing the `show ip ospf` command, the engineer observes that the active OSPF Router ID remains $10.1.1.1$. Which action must be taken for R1 to begin using $10.200.1.1$ as its active OSPF Router ID?