CISCO 300-820 Implementing Cisco Collaboration Cloud and Edge Solutions (CLCEI) Free Practice Test — 30 Questions

Question 1

A company is planning to migrate its existing on-premises Cisco Unified Communications Manager (CUCM) to a cloud-based solution. The IT team has identified several key factors to consider during this migration, including network bandwidth, latency, and the need for redundancy. If the current on-premises CUCM supports 500 concurrent calls and the company expects to increase its capacity to 1,000 concurrent calls in the cloud, what is the minimum required bandwidth for VoIP traffic, assuming each call requires 100 kbps of bandwidth? Additionally, if the average latency should not exceed 150 ms for optimal call quality, what strategies should the team implement to ensure a successful migration while maintaining service continuity?

Accepted Answer

Implement Quality of Service (QoS) policies and ensure sufficient bandwidth allocation for VoIP traffic.

Question 2

In a corporate environment, a network administrator is tasked with implementing security settings for a Cisco Collaboration solution. The administrator must ensure that all endpoints are authenticated and that sensitive data is encrypted during transmission. Which of the following configurations would best achieve these security objectives while adhering to industry best practices?

Accepted Answer

Implementing Secure Real-Time Transport Protocol (SRTP) for media encryption and Transport Layer Security (TLS) for signaling encryption, along with enabling 802.1X for endpoint authentication.

Question 3

A company has implemented a voicemail system that allows users to access their messages via a web interface. The system is designed to store voicemail messages for a maximum of 30 days. If a user receives 5 voicemail messages per day, how many messages will be stored in the system after 30 days if no messages are deleted? Additionally, if the system is configured to automatically delete messages older than 30 days, what will be the total number of messages available to the user at the end of the 30-day period?

Accepted Answer

150 messages

Question 4

A company is planning to implement Webex for their remote workforce, which includes employees in various geographical locations. They want to ensure that their Webex meetings are secure and that only authorized users can join. The IT administrator is tasked with configuring the Webex site settings to enhance security. Which of the following configurations should the administrator prioritize to achieve this goal?

Accepted Answer

Enable the "Require password for all meetings" setting and configure the "Only authenticated users can join" option.

Question 5

In a hybrid deployment model for a Cisco collaboration solution, an organization is looking to balance its on-premises infrastructure with cloud services to optimize performance and scalability. The IT team needs to determine the best approach to manage call routing and ensure redundancy. Given the following options, which deployment model would best support their requirements while maintaining high availability and disaster recovery capabilities?

Accepted Answer

A combination of on-premises Cisco Unified Communications Manager (CUCM) and Cisco Webex Cloud services, utilizing a cloud-registered CUCM for failover and call routing.

Question 6

A company is planning to migrate its legacy communication system to a cloud-based collaboration platform. The legacy system currently supports 500 users, and the company anticipates a 20% increase in user demand post-migration. The IT team needs to ensure that the new system can handle the increased load while maintaining performance. If the current system has an average response time of 200 milliseconds per user, what should be the maximum allowable response time per user in the new system to ensure a seamless experience, considering the increased user base?

Accepted Answer

250 milliseconds

Question 7

In a corporate environment where remote collaboration is essential, a company is evaluating the impact of 5G technology on their existing collaboration solutions. They are particularly interested in understanding how 5G can enhance video conferencing quality and reduce latency. If the current latency of their video conferencing system is 200 milliseconds over a 4G network, and they anticipate that 5G will reduce this latency by approximately 90%, what will be the new latency in milliseconds? Additionally, how does this reduction in latency affect the overall user experience in terms of real-time communication?

Accepted Answer

20 milliseconds

Question 8

In a corporate environment, a network engineer is tasked with implementing a new collaboration tool that requires integration with existing Cisco Unified Communications Manager (CUCM) systems. The engineer must ensure that the tool can effectively manage call routing, user presence, and messaging services. Which of the following tools and techniques should the engineer prioritize to facilitate this integration while ensuring optimal performance and security?

Accepted Answer

Cisco Unified Communications Manager API and SIP Trunking

Question 9

A company is experiencing intermittent call drops in its VoIP system, which is hosted on a Cisco Collaboration platform. The network administrator suspects that the issue may be related to Quality of Service (QoS) settings. After reviewing the configuration, the administrator finds that the DSCP (Differentiated Services Code Point) values for voice traffic are not being prioritized correctly. What is the most effective approach to resolve this issue and ensure that voice packets receive the appropriate priority in the network?

Accepted Answer

Implement a QoS policy that prioritizes voice traffic by configuring the correct DSCP values for voice packets, such as EF (Expedited Forwarding) for voice and CS3 (Class Selector 3) for signaling traffic.

Question 10

In a Cisco Unified Communications Manager (CUCM) environment, a company has multiple departments, each requiring distinct dialing patterns for internal and external calls. The IT manager needs to implement route patterns and partitions to ensure that calls are routed correctly based on the department making the call. If the Sales department needs to dial external numbers starting with \'9\' followed by a 10-digit number, while the Support department should only be able to dial internal extensions starting with \'2\', which configuration would best achieve this requirement while ensuring that the Sales department cannot access internal extensions of the Support department?

Accepted Answer

Create a route pattern for the Sales department as '9[2-9]XXXXXX' and assign it to a partition that excludes the Support department's internal extensions. Create a separate route pattern for the Support department as '2XXXXXX' assigned to its own partition.

Question 11

A company is experiencing intermittent audio issues during Webex meetings, where participants report that their voices are choppy and sometimes drop out entirely. The IT team has conducted a preliminary analysis and found that the network bandwidth is sufficient, with an average upload speed of 10 Mbps and a download speed of 50 Mbps. However, they suspect that the Quality of Service (QoS) settings on their routers may not be optimized for Webex traffic. What steps should the IT team take to troubleshoot and resolve the audio issues effectively?

Accepted Answer

Implement QoS policies that prioritize Webex traffic over other types of traffic on the network.

Question 12

In a corporate environment, a company is implementing a new collaboration solution that integrates voice, video, and messaging services. The IT security team is tasked with ensuring that the solution adheres to the principles of confidentiality, integrity, and availability (CIA). They are particularly concerned about the potential for unauthorized access to sensitive communications. Which of the following security measures would best enhance the protection of these communications against eavesdropping and unauthorized access?

Accepted Answer

Implementing end-to-end encryption for all communication channels

Question 13

In a Cisco Collaboration environment, a company is planning to implement a solution that integrates various communication tools, including voice, video, and messaging. They need to ensure that the solution is scalable, secure, and provides a seamless user experience across different devices. Which key component should they prioritize to achieve optimal performance and reliability in their collaboration solution?

Accepted Answer

Cisco Unified Communications Manager (CUCM)

Question 14

In a corporate environment, a company is implementing Single Sign-On (SSO) to streamline user authentication across multiple applications. The IT team is tasked with ensuring that the SSO solution adheres to security best practices while providing a seamless user experience. Which of the following considerations is most critical when designing the SSO architecture to prevent unauthorized access and ensure secure authentication?

Accepted Answer

Implementing multi-factor authentication (MFA) as part of the SSO process

Question 15

In a corporate environment, a company is implementing a new communication system that requires secure transmission of sensitive data over the internet. The IT team is considering various encryption techniques to ensure data confidentiality and integrity. They are particularly focused on symmetric encryption methods due to their speed and efficiency. If the team decides to use the Advanced Encryption Standard (AES) with a key size of 256 bits, what is the theoretical number of possible keys that can be generated, and how does this relate to the security of the encryption method?

Accepted Answer

$2^{256}$

Question 16

In a Cisco Unified Communications Manager (CUCM) environment, you are tasked with configuring a new branch office that requires a specific dial plan. The branch office will have 50 users, and you need to ensure that they can call each other using a 4-digit extension format. Additionally, you want to allow these users to call the main office, which uses a 3-digit extension format. Given that the main office extensions range from 100 to 199, what should be the configuration for the branch office extensions to avoid conflicts and ensure proper routing?

Accepted Answer

Configure branch office extensions from 2000 to 2049.

Question 17

A company is experiencing issues with call quality in their Cisco Unified Communications Manager (CUCM) environment. The network administrator suspects that the problem may be related to the Quality of Service (QoS) settings on the routers. After reviewing the configuration, the administrator finds that the DiffServ Code Point (DSCP) values for voice traffic are not being properly marked. Which of the following actions should the administrator take to ensure optimal call quality and adherence to QoS principles?

Accepted Answer

Implement a policy-based QoS configuration that prioritizes voice traffic by marking it with the appropriate DSCP values, such as EF (Expedited Forwarding) for voice packets.

Question 18

A multinational corporation is implementing a new cloud-based collaboration solution that will handle sensitive customer data across various jurisdictions. The company is particularly concerned about compliance with regulations such as the General Data Protection Regulation (GDPR) in Europe and the Health Insurance Portability and Accountability Act (HIPAA) in the United States. Given these considerations, which of the following strategies should the corporation prioritize to ensure compliance with both GDPR and HIPAA while maintaining operational efficiency?

Accepted Answer

Implementing data encryption both at rest and in transit, along with regular audits and employee training on data protection policies.

Question 19

A company is monitoring the performance of its Cisco Unified Communications Manager (CUCM) deployment. They have set a threshold for call setup time to be no more than 2 seconds. During a performance monitoring session, they observe that the average call setup time over a 24-hour period is 2.5 seconds, with a standard deviation of 0.5 seconds. If they want to determine the percentage of calls that exceed the threshold using a normal distribution, what is the z-score for the threshold of 2 seconds, and what percentage of calls are expected to exceed this threshold?

Accepted Answer

The z-score is -1.0, and approximately 84.13% of calls exceed the threshold.

Question 20

In a Cisco collaboration environment, you are tasked with configuring a new Cisco Unified Communications Manager (CUCM) device to ensure optimal call quality and resource management. The device will be handling a mix of voice and video calls, and you need to set the appropriate codec preferences, bandwidth limitations, and Quality of Service (QoS) settings. Given the following requirements: the maximum bandwidth for video calls should not exceed 1.5 Mbps, and voice calls should be prioritized with a minimum of 100 Kbps per call. If the device is expected to handle 10 simultaneous video calls and 20 simultaneous voice calls, what is the total bandwidth requirement for the device, and how should you configure the QoS to ensure that voice traffic is prioritized over video traffic?

Accepted Answer

Configure the device to allocate 2 Mbps for voice and 1.5 Mbps for video, implementing QoS with a priority queue for voice traffic.

Question 21

In a scenario where a company is integrating Cisco Webex with its existing Cisco Unified Communications Manager (CUCM) environment, the IT team needs to ensure that the call routing between Webex and CUCM is optimized for both performance and reliability. They are considering various configurations for the SIP trunk that connects Webex to CUCM. Which configuration would best enhance the integration while ensuring minimal latency and high availability?

Accepted Answer

Implementing a SIP trunk with multiple endpoints and configuring load balancing across these endpoints.

Question 22

In a Cisco Unified Communications Manager (CUCM) environment, a company has multiple departments, each requiring distinct dialing patterns for internal and external calls. The IT manager needs to implement route patterns and partitions to ensure that calls are routed correctly based on the department making the call. If the Sales department needs to access a specific external number that the Marketing department should not, which of the following configurations would best achieve this while maintaining the integrity of the overall dialing plan?

Accepted Answer

Create a route pattern for the external number and assign it to a partition that only the Sales department can access.

Question 23

A company is looking to integrate its existing customer relationship management (CRM) system with a new Cisco collaboration platform to enhance communication and streamline workflows. The CRM system uses RESTful APIs for data exchange, while the Cisco platform supports both REST and SOAP APIs. The integration requires the synchronization of customer data, including contact details and interaction history, between the two systems. Which approach would be the most effective for ensuring seamless data integration while maintaining data integrity and minimizing latency?

Accepted Answer

Utilize the RESTful API of the CRM system to push updates to the Cisco platform in real-time, ensuring that any changes in customer data are immediately reflected in both systems.

Question 24

A company is analyzing its call center performance using a reporting tool that aggregates data from various sources. The management wants to evaluate the average call duration and the total number of calls handled over a specific period. If the total call duration for the month is 12,000 seconds and the total number of calls handled is 300, what is the average call duration in seconds? Additionally, if the management wants to compare this average call duration to a target average of 40 seconds, what percentage of the target is the actual average call duration?

Accepted Answer

30 seconds, 75%

Question 25

In a corporate network, a network engineer is tasked with implementing Quality of Service (QoS) to ensure that voice traffic is prioritized over regular data traffic. The engineer decides to classify and mark voice packets using Differentiated Services Code Point (DSCP) values. If the voice traffic is assigned a DSCP value of 46, what is the expected behavior of the network devices when handling this traffic, and how does it compare to the treatment of best-effort traffic, which typically has a DSCP value of 0?

Accepted Answer

Voice packets with a DSCP value of 46 will receive expedited forwarding treatment, ensuring low latency and minimal jitter, while best-effort traffic will be treated with lower priority.

Question 26

A company is implementing a Cisco Contact Center solution that integrates with their existing CRM system. The integration requires the use of APIs to ensure seamless data exchange between the contact center and the CRM. The IT team is tasked with determining the best approach to handle real-time customer data updates during a call. Which method should the team prioritize to ensure that customer information is consistently updated and accessible to agents in real-time?

Accepted Answer

Utilize Webhooks to push updates from the CRM to the contact center in real-time.

Question 27

In a VoIP deployment scenario, a network engineer is tasked with configuring a SIP-based communication system that needs to interoperate with an existing H.323 infrastructure. The engineer must ensure that calls can be successfully established between SIP and H.323 endpoints while maintaining quality of service (QoS) and minimizing latency. Which of the following configurations would best facilitate this interoperability while adhering to the principles of SIP and H.323 signaling?

Accepted Answer

Implement a SIP-H.323 gateway that translates SIP signaling to H.323 and vice versa, ensuring proper codec negotiation and QoS parameters are set for both protocols.

Question 28

In a corporate environment that is transitioning to a hybrid work model, the IT department is evaluating the impact of emerging collaboration technologies on team productivity and engagement. They are particularly interested in understanding how the integration of artificial intelligence (AI) and machine learning (ML) can enhance virtual collaboration tools. Which of the following outcomes best illustrates the potential benefits of AI and ML in this context?

Accepted Answer

Enhanced real-time language translation capabilities that improve communication among global teams.

Question 29

In a Cisco Collaboration environment, a company is planning to implement a new video conferencing solution that integrates with their existing Unified Communications Manager (UCM). The IT team needs to ensure that the solution supports high-definition video, secure communication, and seamless integration with third-party applications. Which key component should the team prioritize to achieve these requirements effectively?

Accepted Answer

Cisco TelePresence Management Suite (TMS)

Question 30

In a corporate environment, a network administrator is tasked with implementing a new authentication system for remote employees accessing sensitive data. The system must ensure that only authorized users can access the network while also providing a seamless user experience. The administrator considers using a combination of Multi-Factor Authentication (MFA) and Role-Based Access Control (RBAC). Which of the following strategies would best enhance the security and efficiency of the authentication process while adhering to best practices in authentication and authorization?

Accepted Answer

Implementing MFA that requires a password, a one-time code sent to the user's mobile device, and a biometric scan, along with RBAC to assign permissions based on user roles.

CISCO 300-820 Implementing Cisco Collaboration Cloud and Edge Solutions (CLCEI) Free Practice Test — 30 Questions

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