Tüm alıştırma soruları

A network administrator is addressing an issue where remote branch office routers intermittently drop OSPF neighbor adjacencies with the central core router following a WAN circuit bandwidth upgrade. Place the administrator's troubleshooting actions in the correct sequential order according to the CompTIA troubleshooting methodology, from the initial step to the final step.

A network engineer is troubleshooting several complex wireless performance issues across an enterprise facility. Match each observed diagnostic symptom to its underlying wireless RF or configuration root cause.

A network administrator needs to ensure that a primary distribution switch is selected as the Spanning Tree Protocol (STP) root bridge across the local switching domain. Which of the following configuration modifications will achieve this goal?

A workstation at $10.20.1.50/24$ cannot access an internal application server at $172.16.50.10$. The administrator suspects a default gateway mismatch, a missing static route, or an Access Control List (ACL) dropping the traffic on the core Layer 3 switch. Place the following troubleshooting steps in the correct sequential order according to standard network troubleshooting methodology.

A network administrator is reviewing switch console logs and interface statistics to diagnose several Layer 2 performance and connectivity issues across the enterprise network. Match each specific switch error output or diagnostic symptom on the left with its primary underlying root cause on the right.

A network technician is investigating several common Layer 2 switching and trunking issues on a campus network. Match each observed diagnostic symptom or console log message on the left with its corresponding underlying root cause on the right.

A network administrator is configuring a public Wi-Fi network for a city airport terminal. Corporate policy mandates that passenger data transmitted over the wireless medium must be encrypted individually per session to prevent passive eavesdropping, but the system must not require user registration, passwords, or authentication credentials. Which wireless security standard or feature should the administrator implement?

A network administrator is troubleshooting an issue where a workstation cannot access a critical web database service hosted at `db01.corp.internal` on TCP port 8443 in a remote subnet. Following standard network troubleshooting methodology to systematically isolate the issue from the local network layer up through path routing, domain name resolution, and transport socket state, in what logical sequence should the administrator execute the command-line network utilities?

A system administrator is troubleshooting a hostname resolution issue on a Linux workstation. Users report they cannot connect to an internal intranet site at `app.dev.local`. The administrator executes a diagnostic DNS query using `dig` and receives the following terminal output snippet:

;; QUESTION SECTION:
;app.dev.local. IN A

;; ANSWER SECTION:
app.dev.local. 300 IN CNAME web-server-01.dev.local.

;; AUTHORITY SECTION:
dev.local. 3600 IN NS ns1.dev.local.

The output shows an alias (CNAME) pointing to `web-server-01.dev.local`, but no corresponding IPv4 address (`A` record) is included in the response. Based on this command-line output, which command should the administrator run NEXT to directly query the designated authoritative server `ns1.dev.local` specifically for the missing `A` record of target host `web-server-01.dev.local`?

An enterprise organization is deploying a dedicated, high-speed network infrastructure designed specifically to interconnect database servers with high-capacity block-level storage arrays using Fibre Channel protocols. This infrastructure operates independently from the corporate user network to guarantee minimal latency and prevent bandwidth saturation from daily workstation operations. Which network classification specifically describes this dedicated block-level storage architecture?

An administrator observes network traffic arriving at an enterprise server hosting a web application. Which TWO of the following statements accurately describe the actions performed during the de-encapsulation process as the incoming frame moves up the destination host's protocol stack?

A network architect is updating documentation for various enterprise network deployment models and topologies. Match each network type or physical topology on the left with its corresponding operational description on the right.

A network administrator is troubleshooting a zone transfer failure between an internal primary DNS server and a newly deployed secondary DNS server across a subnet boundary controlled by an Access Control List (ACL). Standard DNS resolution queries from client workstations to the primary server are functioning normally, but automated zone sync operations consistently fail. Which ACL modification should the administrator make to allow zone transfers while maintaining standard name resolution?

A network administrator is analyzing traffic flow across a Layer 3 router connecting two separate physical IP subnets. As an IP packet travels from Host A on Subnet 1 through the router to Host B on Subnet 2, which of the following best describes how PDU encapsulation headers are processed and modified by the router?

A host workstation generates a DNS query to resolve a hostname prior to establishing a connection. In what chronological sequence does the workstation's protocol stack perform outbound encapsulation on this data, from initial generation to physical media transmission?

A storage administrator is deploying a network-attached storage array to host shared folders for Windows workstations on a isolated VLAN. To meet security standards, network traffic must avoid legacy NetBIOS encapsulation and operate strictly via direct file sharing over TCP/IP. Which port must be opened on the internal firewall to permit direct Server Message Block (SMB) communications?

A university IT department is installing a high-speed fiber-optic backbone to interconnect networking hardware across eight distinct academic buildings situated on a single, contiguous 200-acre property owned by the institution. All cabling and networking hardware are privately owned, operated, and maintained by the university without using public utility lines or third-party service provider leased circuits. Which network classification best describes this geographic deployment?

A network systems engineer is documenting security perimeter rules and directory services infrastructure. Match each network service on the left with its corresponding default transport layer port and operational profile on the right.

A network engineer is selecting a dynamic routing protocol for an enterprise internal network that incorporates routers from multiple hardware vendors. The network architecture requires an open-standard Interior Gateway Protocol (IGP) that uses link-state technology, supports hierarchical organization through area partitioning to constrain link-state advertisement propagation, and utilizes Dijkstra's algorithm for path determination. Which dynamic routing protocol best satisfies all of these requirements?

A network administrator is evaluating routing paths on a branch router. The router receives two updates via Routing Information Protocol (RIPv2) for destination network $192.168.50.0/24$. Path 1 traverses four intermediate routers across a high-speed $10\text{ Gbps}$ optical link. Path 2 traverses two intermediate routers across a legacy $1.544\text{ Mbps}$ T1 connection. Which path will the router select for insertion into its Routing Information Base (RIB), and why?