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Infrastructure And Design practice questions

Practise Cisco Implementing Cisco Collaboration Core Technologies (CLCOR, 350-801, v2.0 blueprint, CCNP Collaboration) (CLCOR) Infrastructure And Design practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.

Courseiva uses original exam-style practice questions designed for learning and revision. The goal is to understand the concepts, recognise exam patterns, and improve through explanations — not memorise copied exam dumps.

Reviewed byJohnson Ajibi· MSc IT Security
20 questionsDomain: Infrastructure And Design

What the exam tests

What to know about Infrastructure And Design

Infrastructure And Design questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

Watch out for

Common Infrastructure And Design exam traps

  • Answering from memory before reading the full scenario.
  • Missing a constraint such as cost, availability, security, scope or command context.
  • Choosing a broad answer when the question asks for the most specific fix.
  • Ignoring why the wrong options are tempting.

Practice set

Infrastructure And Design questions

20 questions · select your answer, then reveal the explanation

You are performing a network readiness assessment for a Cisco Webex Room Kit deployment. The current network uses a legacy infrastructure with a MTU of 1500 bytes. What is the recommended practice for handling potential fragmentation issues for video traffic streams?

You are designing a high availability solution for Cisco Unity Connection. Which service must be running and correctly configured on both the primary and secondary servers to facilitate automatic failover?

You are designing a Cisco Unified Communications Manager (CUCM) cluster with geographically dispersed nodes. To ensure optimal voice quality and call signaling efficiency, which mechanism should you configure to prevent the transmission of unnecessary SIP signaling traffic over high-latency WAN links?

Question 4hardmultiple choice
Open the full VLAN trunking answer →

You are deploying a CUBE (Cisco Unified Border Element) for SIP trunking. Which feature allows CUBE to hide the internal network topology from the service provider?

Question 5mediummulti select
Study the full QoS explanation →

Which TWO of the following QoS mechanisms are recommended for voice traffic to minimize delay?

When deploying a high-availability CUCM cluster, how many subscribers are recommended to be associated with a single publisher for optimal database performance?

Question 7mediummultiple choice
Study the full QoS explanation →

A network engineer is deploying Cisco Unified Border Element (CUBE) and must ensure that voice traffic is prioritized correctly across the enterprise network. Which command correctly maps the voice traffic DSCP value to the correct priority queue in a Cisco IOS-XE router?

Question 8mediummultiple choice
Read the full DHCP explanation →

In a Cisco collaboration design, you are tasked with identifying the DHCP Option required for Cisco IP Phones to discover the TFTP server address automatically. Which option is standard for this purpose?

When designing an NTP deployment for a Cisco Collaboration environment, what is the best practice for time synchronization across CUCM nodes?

Which design principle must be followed when implementing a centralized call processing deployment with remote branch offices connected via a WAN?

Question 11hardmultiple choice
Read the full DNS explanation →

You are configuring DNS SRV records to support Jabber service discovery. Which domain format is correct for the _collab-edge._tls record?

Which network condition is the most significant contributor to poor voice quality in a VoIP environment?

You are verifying the network readiness for a Cisco TelePresence endpoint. Which tool would you use to measure the packet loss, latency, and jitter on the path to the CUCM cluster?

You are designing a solution for secure voice signaling. Which protocol provides encryption for SIP signaling messages in a CUCM environment?

A collaboration designer must ensure that inter-cluster calls between two CUCM clusters remain secure. Which mechanism must be implemented to ensure media remains encrypted from end to end?

You are deploying a Cisco Expressway-E in a DMZ. Which port must be opened on the external firewall to allow for H.460.18/19 firewall traversal for H.323 endpoints?

In a multisite WAN deployment, which codec should you choose to balance voice quality and bandwidth consumption across a constrained link?

When designing for high availability of Cisco Unified Communications Manager (CUCM) services, which specific configuration ensures that a secondary node takes over call processing if the primary node fails?

You have a CUCM cluster with high utilization. Which parameter, when adjusted, helps mitigate the load on the TFTP service during a large-scale phone deployment?

Question 20easymultiple choice
Review the full routing breakdown →

Which component in a Cisco Collaboration design is responsible for providing the dial tone and call routing logic for IP phones?

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Focused Infrastructure And Design sessions

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Every question in these sessions is drawn from the Infrastructure And Design domain — nothing else.

Related practice questions

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Frequently asked questions

What does the CLCOR exam test about Infrastructure And Design?
Infrastructure And Design questions test whether you can apply the concept in context, not just recognise a definition.
How should I use these practice questions?
Select your answer before revealing the explanation. Then read why each option is right or wrong — this active recall approach builds retention far faster than re-reading notes.
Can I practise just Infrastructure And Design questions in a focused session?
Yes — the session launcher on this page draws every question from the Infrastructure And Design domain. Use a 10-question session first to gauge your baseline, then move to 20 or 30 once the weak spots are clear.
Where can I practise other CLCOR topics?
Use the topic links above to move to related areas, or go back to the CLCOR question bank to see all topics.
Are these real exam questions or dumps?
These are original practice questions written to test the same concepts the CLCOR exam covers. They are not copied from any real exam or dump site.