4.1 Resilient, Scalable, and Secure Modular Network Design Based on Constraints (such as Technical, Operational, Application, and Business Constraints) to Support Applications on the IP Network (such as Voice, Video, Backups, Data Center Replication, IoT, and Storage) 400-007 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   What is the primary network design consideration for supporting backup traffic?

   • AEnsuring high jitter tolerance for backup traffic
   • BEnsuring multicast support for backup data distribution
   • CEnsuring sufficient bandwidth and capacity to transfer backup data within the required backup window
   • DEnsuring low latency for real-time interaction with backup servers
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   In a classic hierarchical campus network design, which layer is typically responsible for providing policy-based connectivity, such as access control lists and QoS marking, between the access layer and the core?

   • AServices layer
   • BAccess layer
   • CCore layer
   • DDistribution layer
   Reveal Solution Discussion Select an answer first
4. 18application · medium

   A company is deploying a unified communications system that includes VoIP and video conferencing. The network must support both applications without degradation. The network team has configured QoS but is unsure if the current design is sufficient. Which additional design consideration is most important to ensure both voice and video quality?

   • AEnsure that the network has sufficient bandwidth for the peak concurrent call and video session load.
   • BEnable multicast for all video traffic to reduce bandwidth usage.
   • CUse a separate VLAN for voice and video traffic to simplify QoS marking.
   • DConfigure the network to drop all traffic above a certain priority level during congestion.
   Reveal Solution Discussion Select an answer first
5. 19foundation · easy

   Which network characteristic is most important for storage area network (SAN) traffic?

   • ALow latency and high reliability
   • BLow bandwidth to reduce cost
   • CHigh jitter tolerance
   • DMulticast support
   Reveal Solution Discussion Select an answer first
6. 20expert · hard

   A mid-sized company is designing a new network for its headquarters. The network will support 500 users, voice, and video conferencing. The IT team consists of two network engineers who are not experts in advanced routing or QoS. The business requires high availability for the voice and video services. Which design approach best balances resilience with the operational constraints?

   • AImplement a full mesh of routers with OSPF and MPLS-TE to provide fast failover and traffic engineering.
   • BUse a collapsed-core design with two redundant switches and configure HSRP and simple QoS policies.
   • CUse a single powerful router for all routing and rely on the access switches for redundancy.
   • DOutsource the network design and management to a managed service provider to handle the complexity.
   Reveal Solution Discussion Select an answer first