Tüm alıştırma soruları

An enterprise workstation needs to access a web server using its Fully Qualified Domain Name (FQDN). Arrange the steps of the DNS name resolution process in the correct chronological order from first to last.

A network technician is configuring interface GigabitEthernet0/3 on a Cisco Catalyst switch to connect an end-user workstation to VLAN 25. Which TWO commands must be executed within interface configuration mode to properly set up this access port? (Select two.)

A network administrator configures the command `ip ospf priority 0` on a router's Ethernet interface connected to a broadcast multiaccess network. Which behavior will this router exhibit during OSPF DR and BDR elections on this segment?

A network administrator is assigning an IP address to a newly installed interface on a database server. The server is configured with the IP address $172.28.140.197$ and a subnet mask of $255.255.252.0$. Which IPv4 address represents the subnet broadcast address for this server's subnetwork?

A network administrator is configuring Port Address Translation (PAT) on a Cisco router so that internal hosts on the $10.1.1.0/24$ subnet can access the Internet using the public IP address assigned to the WAN interface $GigabitEthernet0/0/1$. Access List $1$ has already been configured to permit traffic from $10.1.1.0/24$. Which two actions are required to complete this PAT configuration? (Select two.)

An enterprise workstation attempts to connect to an external service by domain name (web.example.com) for the first time. Arrange the following DNS lookup and name resolution steps in the correct sequential order from the client's initial request to receiving the final IP address.

A network engineer is administering an active OSPFv2 routing process on router R1. The router currently has the following interface IP addresses and operational statuses:

- Loopback 0: $192.168.10.1/24$ (Status: Up, Line Protocol: Down)
- Loopback 1: $172.16.1.1/24$ (Status: Up, Line Protocol: Up)
- GigabitEthernet0/0: $10.0.0.1/30$ (Status: Up, Line Protocol: Up)
- GigabitEthernet0/1: $10.0.0.5/30$ (Status: Up, Line Protocol: Up)

While OSPFv2 process 1 is actively running with active neighbor adjacencies, the engineer executes the command `router-id 1.1.1.1` under the OSPF router configuration mode. Which TWO statements accurately describe the resulting OSPF Router ID behavior and operational state on R1? (Select TWO.)

A network administrator needs to configure a floating static backup route on a Cisco router to reach the destination subnet $192.168.50.0/24$ via the next-hop IP address $10.0.12.2$. The primary path to this network is currently dynamically learned via OSPF. Which command correctly configures the floating static route so that it only enters the routing table when the OSPF route fails?

A Cisco Catalyst switch running Rapid PVST+ has a primary uplink on interface GigabitEthernet0/1 functioning as the Root Port for VLAN 10. Interface GigabitEthernet0/2 connects to a secondary distribution switch and functions as an Alternate Port for VLAN 10 in the Discarding state. If interface GigabitEthernet0/1 suddenly fails, how does Rapid PVST+ handle the state and role transition for interface GigabitEthernet0/2?

A Cisco router displays the following partial routing table output:

text
Gateway of last resort is not set

10.0.0.0/8 is variably subnetted, 4 subnets, 3 masks
O 10.150.0.0/16 [110/20] via 192.168.12.2, 00:14:22, GigabitEthernet0/0
D 10.150.32.0/19 [90/2578560] via 192.168.23.2, 00:05:10, GigabitEthernet0/1
S 10.150.32.0/24 [1/0] via 192.168.34.2, 01:12:00, GigabitEthernet0/2
O IA 10.150.32.128/26 [110/30] via 192.168.45.2, 00:02:45, GigabitEthernet0/3

The router receives a packet destined for $10.150.32.135$. Which interface will the router select to forward this packet?

An infrastructure team is provisioning access layer switch interfaces for newly deployed Cisco Lightweight Access Points (LAPs) operating strictly in Local mode. All wireless client traffic will be encapsulated within CAPWAP tunnels back to the central Wireless LAN Controller (WLC). Which switch port configuration must be applied to the switch interfaces connecting directly to these Access Points?

A network administrator is implementing Port Address Translation (PAT) using an IP address pool on a Cisco IOS router. Internal devices belong to the $172.16.0.0/12$ private network range. Standard IP access list $15$ has already been created to identify inside traffic with the command `access-list 15 permit 172.16.0.0 0.15.255.255`. The public IP addresses assigned by the ISP for translation are $203.0.113.10$ through $203.0.113.14$ with subnet mask $255.255.255.248$. Which TWO configuration commands must be executed on the router to correctly instantiate the pool and map the inside ACL traffic to allow multiple internal hosts to share these public IP addresses simultaneously?

An enterprise network administrator is deploying First Hop Redundancy Protocols across two Cisco Catalyst routers, R1 (primary, physical IP $192.168.10.2/24$) and R2 (secondary, physical IP $192.168.10.3/24$), servicing subnet $192.168.10.0/24$. The administrator is evaluating feature parities and operational behaviors between HSRPv2 and VRRPv3 for dual-stack IPv4/IPv6 resilience.

Which two statements accurately describe the operational differences and configuration mechanics between HSRPv2 and VRRPv3 in this environment? (Choose two.)

Router R1 and Router R2 are directly connected via their GigabitEthernet0/0 interfaces across an Ethernet link. A network engineer attempts to establish an OSPFv2 neighbor relationship between them in Area 0.

The interfaces are configured with the following parameters:
- Router R1 (Gi0/0): IP address 172.16.10.1/24 (Subnet Mask: 255.255.255.0), OSPF Area 0, Hello timer 10s, Dead timer 40s
- Router R2 (Gi0/0): IP address 172.16.10.2/25 (Subnet Mask: 255.255.255.128), OSPF Area 0, Hello timer 10s, Dead timer 40s

Executing `show ip ospf neighbor` on both routers reveals no neighbor entries. Which statement correctly explains why R1 and R2 fail to establish an OSPFv2 neighbor adjacency?

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

text
Codes: C - connected, S - static, D - EIGRP, O - OSPF

Gateway of last resort is 192.168.40.1 to network 0.0.0.0

S* 0.0.0.0/0 [1/0] via 192.168.40.1
S 172.20.0.0/16 [1/0] via 192.168.30.1
D 172.20.100.0/24 [90/2170112] via 192.168.20.1
O 172.20.100.64/26 [110/20] via 192.168.10.1

The router receives a packet destined for IP address 172.20.100.85. Which next-hop IP address will the router choose to forward this packet?

A network administrator is evaluating the IPv4 static routing configuration on router R1. Router R1 needs to reach the remote subnet $10.80.16.0/20$. The primary routing path to this destination is currently provided by OSPF, which has an administrative distance of 110. The administrator must configure two static routes:

1. A static route using next-hop IPv4 address $172.16.30.2$ that immediately takes precedence over the OSPF route.
2. A floating static route using next-hop IPv4 address $172.16.40.2$ that serves as a backup only if the OSPF route becomes unavailable.

Which TWO static route commands must be configured on router R1 to achieve this objective? (Select TWO.)

In an enterprise network environment, host computers rely on various network services to locate resources efficiently. Which fundamental role is performed by a Domain Name System (DNS) server during host-to-host communications?

A network administrator is hardening switch port security on a Cisco Catalyst switch. Interface GigabitEthernet0/1 currently has default settings and is connected to a host workstation in the Accounting department. The administrator must explicitly configure the port to operate statically as an access interface in VLAN 30 (named ACCOUNTING) and ensure Dynamic Trunking Protocol (DTP) frames are no longer sent on this link. Which set of commands must be executed in interface configuration mode to fulfill these requirements?

A network engineer is configuring Port Address Translation (PAT) on a Cisco IOS router using a dynamic NAT pool named $PUBLIC_POOL$ ($203.0.113.10$ to $203.0.113.12$). Internal endpoints reside on the $172.16.10.0/24$ network, which is matched by standard Access Control List 15. Which two configuration actions must be performed on the router to correctly enable PAT for internal hosts and designate interface directionality? (Select two.)

Match each OSPFv2 network type or election property on the left to its corresponding default operation or behavior on the right.