Network Operations

A network technician is establishing standard configuration baseline documentation for newly installed branch switches. Which of the following elements should be included as key components of an enterprise configuration baseline? (Select TWO.)

An enterprise network engineer is designing a comprehensive network performance monitoring architecture. Match each telemetry protocol or monitoring technique on the left with its appropriate operational deployment objective on the right.

A network infrastructure team is preparing a complex change to transition an enterprise data center's core routing infrastructure from a static routing model to an internal BGP (iBGP) topology. The proposed configuration updates have already been tested in a isolated sandbox environment and reviewed by the Change Advisory Board (CAB). Which of the following components must be formally documented within the final Request for Change (RFC) before the maintenance window is approved for execution?

Prior to performing a major routing protocol modification on an enterprise core network, an engineer must submit documentation detailing how to undo the modifications should performance degrade. Which of the following change management elements fulfills this requirement?

A network administrator is troubleshooting intermittent quality degradation during corporate video conference calls across a site-to-site WAN link. While aggregate interface bandwidth utilization remains below capacity, users report packet arrival time variation (jitter) and video freezing. The administrator needs to analyze flow-level conversation statistics—specifically tracking source/destination IP addresses, port numbers, and byte counts—to pinpoint non-business application traffic consuming link resources. Which telemetry protocol and transport method should be implemented on the WAN edge router to export these flow statistics?

A network engineering team is drafting a Request for Change (RFC) to deploy automated configuration management scripts across enterprise cloud interconnect routers. Which TWO of the following operational elements must be formally documented within the RFC prior to submitting it to the Change Advisory Board (CAB) for approval?

Match each network performance metric with the operational measurement or network condition it directly quantifies.

An enterprise network engineer is configuring centralized event logging for perimeter switches sending data across a WAN connection. Security policy mandates that log messages must be delivered reliably to ensure no log loss during link congestion and that all log payloads must be cryptographically encrypted in transit. Which of the following transport protocols and port configurations best meets these compliance requirements?

To address an active security advisory affecting perimeter routing hardware, an engineer is tasked with implementing an urgent software patch. Before committing the patch package to primary operational equipment, which set of procedures best ensures network stability and recovery capability in accordance with standard maintenance practices?

A network engineer is configuring a pair of redundant Layer 3 switches using Virtual Router Redundancy Protocol (VRRP) to provide default gateway high availability for an enterprise VLAN. The design requires that traffic automatically reroutes to the backup switch if the primary switch loses its connection to the core network, and that the primary switch resumes gateway duties once the core link is restored. Which TWO configuration settings must be implemented on the primary switch to meet these requirements? (Select TWO.)

A network administrator is tasked with setting up a high-performance network monitoring solution for an enterprise core switch. The monitoring system must collect flow-level traffic statistics to analyze bandwidth utilization by application, while also enabling secure management polling and alerting without exposing telemetry data or authentication credentials to eavesdropping on the management network. Which of the following protocol configurations and telemetry methods should the administrator implement to meet these requirements? (Select TWO.)

An enterprise organization plans to modify the BGP configuration across its global WAN edge routers to convert a full-mesh IBGP topology into a route reflector architecture. During the formal Change Advisory Board (CAB) review, the network lead submits a Request for Change (RFC) containing maintenance window schedules, sandbox testing logs, and step-by-step implementation scripts. However, the CAB refuses approval, noting that the document fails to define measurable criteria for identifying an unsuccessful deployment or explicit instructions for returning the network to a functional baseline if unpredicted routing loops occur. Which of the following elements must be added to the RFC to satisfy the CAB requirement for change authorization?

A senior infrastructure engineer is defining the emergency recovery protocol for an enterprise network orchestrator host. The host's backup policy mandates a full system backup executed every Sunday at 01:00, daily incremental backups created Monday through Friday at 22:00, and hourly configuration state exports taken at the top of every hour. An unrecoverable storage array crash corrupts the primary orchestrator host on Thursday at 14:15. Which of the following backup restoration sequences must be executed to restore the orchestrator to its most recent operational state prior to the failure while preserving data integrity?

An organization is deploying an edge computing cabinet at a remote manufacturing facility that frequently experiences complete primary ISP fiber outages. The network operations team must maintain secure command-line access to core switches for initial boot troubleshooting and possess the ability to hard-reboot frozen hardware remotely without relying on local site staff or the primary WAN link. Which of the following solutions best satisfies both the out-of-band reachability and remote power management requirements?

A network administrator configures a pair of core routers using a First Hop Redundancy Protocol (FHRP) to provide seamless default gateway redundancy for a corporate subnet. During a scheduled maintenance test, the primary router is powered off. Although the secondary router successfully transitions to the active state and assumes ownership of the virtual IP and virtual MAC addresses, workstations on the subnet immediately lose outbound network access. Upon auditing host network configurations, the administrator notices that all affected workstations were statically configured. Which of the following is the most likely cause of the connectivity failure during failover?

A network engineer is designing an out-of-band (OOB) management solution for a remote datacenter rack to maintain administrative control during a complete primary network failure. The technical specifications mandate: (1) remote GUI-level visual access to bare-metal server console screens during POST/boot, (2) direct serial CLI management of edge routers and switches, and (3) the capability to remotely power-cycle frozen hardware. Which deployment strategy fulfills all of these requirements while maintaining dedicated OOB access?

A network engineering team is hardening the remote management architecture for a critical enterprise data center. Security baseline standards require cryptographic protection for all administrative sessions, central AAA authorization for individual CLI commands, and an independent out-of-band (OOB) pathway capable of providing emergency console access if the core routers experience a complete network stack freeze or primary ISP fiber failure. Which of the following mechanisms should the team deploy to satisfy these requirements? (Select TWO.)

During peak operational hours, enterprise users report frequent audio distortion and freeze-frames during real-time video calls across a site-to-site WAN link. Network interface polling indicates that total link utilization averages only $45\%$ of available capacity, with interface error counters showing fewer than $0.01\%$ dropped frames. Packet captures indicate that delay between consecutive packets fluctuates significantly across UDP transport streams. Which network metric is primarily responsible for the degraded application quality, and which telemetry technology is best suited to continuously monitor these per-flow transport dynamics?

During a quarterly compliance audit of an organization's network infrastructure, a security analyst identifies two key operational deficiencies: event log packets sent from border routers to the log repository are lost during high network congestion, and SNMP performance telemetry transmitted across public circuits can be read in plain text. Which set of protocol configurations directly resolves both compliance issues?

A network technician needs to establish baseline performance monitoring and secure telemetry for a company's voice-over-IP (VoIP) infrastructure. Which of the following operational measures should the technician implement to effectively monitor audio quality and secure management traffic? (Select TWO).