Network Operations
362 questions
A network administrator is preparing a formal Request for Change (RFC) to deploy updated security policies across several branch office routers. Before presenting the request to the Change Advisory Board (CAB) for formal review, which of the following elements must be included in the RFC documentation?
During a post-incident audit following a scheduled core network maintenance event, auditors noted that engineers spent several hours attempting to resolve unexpected packet loss on a newly updated WAN interface rather than reverting to the previous baseline configuration. Although the maintenance window eventually expired without restoring stable service, the deployment team had not breached any formal protocols because no specific metrics were defined to dictate when troubleshooting should cease and restoration must begin. Which specific element of the Request for Change (RFC) documentation was missing or improperly constructed?
During an enterprise network audit, users report periodic voice distortion and video freezing during teleconference sessions over a WAN connection. Telemetry shows that overall link utilization is below 35% and total packet loss is 0%, but packet inter-arrival times fluctuate significantly between 4 ms and 130 ms. Which network performance metric is directly causing this quality degradation?
A network engineering team is preparing to modify Access Control Lists (ACLs) across core datacenter routers to restrict outdated management protocols and enforce secure logging. Before executing the modifications during the scheduled maintenance window, which TWO of the following tasks must be completed as part of the standard change management workflow? (Select TWO.)
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A network administrator is investigating reports of intermittent data backup failures across a core router interface. Although 5-minute average polling shows link utilization peaks at only 65%, interface statistics report a high count of egress packet drops during peak backup windows. The administrator needs to implement a telemetry and polling solution to capture short burst congestion while ensuring secure remote monitoring. Which of the following approaches best addresses this requirement?
A network operations team needs to establish a baseline performance monitoring architecture across remote branch offices. Match each network telemetry and performance monitoring mechanism on the left with its primary collection metric or operational behavior on the right.
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A network administrator submits a Request for Change (RFC) to perform a major firmware upgrade on the central distribution switches servicing a corporate office. The submission details the business justification, target maintenance window, affected VLANs, and post-installation validation tests. However, the Change Advisory Board (CAB) rejects the RFC during review. Which of the following critical components was most likely missing from the RFC submission?
Following an internal compliance audit, an enterprise network engineering team must update performance monitoring configurations across core switches. The updated security baseline requires all device metrics polling to enforce cryptographic user authentication as well as full packet payload encryption. Which protocol configuration satisfies these performance monitoring security requirements?
A network engineer is establishing a telemetry and performance monitoring architecture for remote site routers experiencing performance degradation during real-time video conferencing. The solution must capture flow-level metrics such as packet loss and inter-arrival jitter for video traffic while ensuring secure, encrypted polling of router hardware resources (CPU and memory utilization). Which of the following protocols and configurations should the engineer implement? (Select TWO.)
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A network engineering team is preparing to implement a major SD-WAN traffic steering policy update across all enterprise branch locations. Place the standard change management steps in the correct chronological order from first to last.
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A network engineering team plans to reconfigure VLAN trunking and update Spanning Tree Protocol priorities across campus core switches during an upcoming maintenance window. The lead engineer is finalizing the formal change control documentation for submission to the Change Advisory Board (CAB). Which of the following components must be included in the documentation to ensure the team can safely undo modifications if an unexpected broadcast storm occurs during implementation?
A network technician deployed an emergency configuration change to an edge router during an unscheduled service outage to restore connectivity quickly. Now that network services are fully restored and stable, which TWO of the following post-emergency procedures are required to maintain proper configuration and change management compliance?
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Match each network performance monitoring metric or telemetry mechanism on the left with its corresponding operational impact or functional behavior on the right.
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A network engineer is establishing a telemetry and metric collection framework across core switches over an unencrypted management network segment. The solution must support cryptographic authentication and payload encryption for device health polling, as well as low-overhead flow statistics collection for monitoring bandwidth usage across interfaces. Which of the following protocol configurations should the engineer implement? (Select TWO.)
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A network administrator receives complaints about choppy audio and voice distortion during real-time VoIP sessions between two branch offices. Network monitoring shows low overall bandwidth utilization and an average round-trip latency of 30 ms, but packet inter-arrival times fluctuate wildly between 2 ms and 110 ms. Which performance metric is primarily degrading call quality, and which monitoring mechanism provides granular flow-level visibility to analyze this traffic?
A network operations team is preparing to modify BGP path selection attributes across enterprise border routers to optimize traffic flow. Place the steps of the standard change management process in the correct order from initial proposal to final completion.
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Following a major power interruption at an off-site facility, a core router fails to initialize its IP protocol stack, rendering all in-band network interfaces completely unreachable. Which of the following access methods allows a network administrator to establish direct command-line interface (CLI) access to diagnose the device's boot process?
A network administrator must implement a continuous telemetry solution to monitor interface bandwidth utilization and device CPU metrics on core switches located across a remote branch link. Company security policy dictates that all monitoring data must be protected against eavesdropping and unauthorized tampering while in transit. Which protocol and configuration level should the administrator select to meet these security and performance monitoring requirements?
A network administrator is designing an out-of-band (OOB) management architecture for edge router console access and remote reboot capabilities during a primary network outage. Which of the following solutions should be implemented to achieve full OOB administrative control and power management under these conditions? (Select TWO).
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A network administrator is designing a performance monitoring strategy for an enterprise infrastructure. Match each performance telemetry protocol or monitoring mechanism on the left with its primary operational characteristic on the right.
Click a left item, then click its matching right item
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