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Primary Expressway Configurations – 25%
This subject area measures the following skills of the candidates:
- Configuring a Business to Business collaboration solution (including neighbor zones; traversal zones; search rules; transforms; certificates; DNS records; SIP trunk integration with Cisco Unified Communications Manager);
- Troubleshooting a Business to Business collaboration solution.
- Configuring the core Expressway settings (including DNS; certificates; clustering; network firewall rules; QoS; network interfaces);
- Configuring the Expressway Core dial plan components (including transforms; zones; search rules; pipes & links; regular expressions);
- Configuring toll fraud avoiding within the Expressway series (without custom CPL scripts);
NEW QUESTION # 100
Which mode should be used when Call Policy is configured on Expressways?
- A. local CPL, policy service, and off
- B. remote CPL
- C. extended CPL
- D. on
Answer: A
NEW QUESTION # 101
Refer to the exhibit.
The firewall has been configured from NAT 192.168.108.2 to 100.64.0.1. Which configuration changes are needed for an Expressway-E with dual network interfaces?
A)
B)
C)
D)
- A. Option C
- B. Option B
- C. Option A
- D. Option D
Answer: D
NEW QUESTION # 102
An Expressway-E is configured using a single NIC with NAT.
How must the Expressway-C traversal client zone be configured to connect to the Expressway-E?
- A. TLS verify must be enabled.
- B. The peer address must be the Expressway-E NAT address.
- C. The peer address must be the Expressway-E LAN 1 IP address.
- D. The zone profile must be set to default.
Answer: B
NEW QUESTION # 103
Which two licenses are required for the B2B feature to work? (Choose two.)
- A. Traversal Server
- B. Device Provisioning
- C. Rich Media Sessions
- D. TURN Relays
- E. Advanced Networking
Answer: C,D
NEW QUESTION # 104
Which two statements about Expressway media traversal are true? (Choose two.)
- A. Expressway Control is the traversal server installed in the DMZ.
- B. The Expressway Edge must be put in a firewall DMZ segment.
- C. Cisco Unified Communications Manager zone can be either traversal server or client.
- D. Both Expressway Edge interfaces can be NATed.
- E. The Unified Communications traversal zone can be used for Mobile and Remote Access.
Answer: B,E
NEW QUESTION # 105
Refer to the exhibit. An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9.
Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?
- A. Neighbor Zone
- B. Traversal Zone
- C. Any
- D. All
Answer: C
Explanation:
The "Source" field specifies the source of the call that will be matched by the rule.
The goal is to prevent toll fraud regardless of the call's origin.
Therefore, we need to match calls from any source.
The option "Any" indicates that the rule will match calls from all sources.
By selecting "Any," we ensure that the rule will block toll fraud attempts regardless of the caller's location or network.
NEW QUESTION # 106
Refer to the exhibit.
While troubleshooting Cisco Jabber login issues, there are some error messages. Why is the Jabber client unable to sign in?
- A. service discovery issues
- B. XMPP bind failures
- C. down Cisco Unified Communications Manager server
- D. incorrect login credentials
Answer: B
NEW QUESTION # 107
Which service is available in a cloud-based deployment using Cisco Webex Messenger?
- A. Call forward services
- B. Phone services
- C. Presence
- D. Voicemail
Answer: C
NEW QUESTION # 108
Refer to the exhibit.
Which two numbers match the regular expression? (Choose two.)
- A. 0
- B. d209d165d200d224
- C. d20d16d20d22
- D. 1
- E. 2
Answer: D,E
NEW QUESTION # 109
How does an administrator configure an Expressway to make sure an external caller cannot reach a specific internal address?
- A. configure FAC for the destination alias on the Expressway
- B. block the call with a call policy rule in the Expressway-E
- C. add a search rule route all calls to the Cisco UCM
- D. add the specific URI in the firewall section of the Expressway and block it
Answer: B
Explanation:
https://community.cisco.com/kxiwq67737/attachments/kxiwq67737/4576-docs-colaboracao-voz- e-video/141/2/lpcor-fac.pdf
NEW QUESTION # 110
An administrator is enabling Mobile and Remote Access login for the Cisco UCM registration domain cisco.com. Phones are registered with a Cisco UCM phone security profile name of securephone.cisco.com. Which two subject alternative names must be configured? (Choose two.)
- A. Securephone.cisco.com on the Expressway-C certificate
- B. Securephone.cisco.com on the CallManager certificate
- C. cisco.com on the Expressway-C certificate
- D. Securephone.cisco.com on the Expressway-E certificate
- E. cisco.com on the Expressway-E certificate
Answer: A,E
NEW QUESTION # 111
Refer to the exhibit. After hardening the Cisco Expressway, an engineer noticed this error in the logs HTTP error 429 "Too Many Requests," and users report that authentication is not possible on more than two devices. What must the engineer increase to correct the issue?
- A. maximum authorizations per period
- B. rate control period
- C. credentials cleanup interval
- D. credentials refresh interval
Answer: A
NEW QUESTION # 112
What is the name of the Webex core service that delivers group messaging, one-to-one messaging, presence, and file sharing?
- A. Cisco Webex App
- B. Cisco Jabber Online
- C. Cisco Webex ONE
- D. Cisco Webex Messaging
Answer: D
Explanation:
https://www.cisco.com/c/en/us/products/collateral/conferencing/webex-meeting-center/datasheet- c78-732060.html
NEW QUESTION # 113
What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?
- A. ICE enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.
- B. ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.
- C. ICE uses FAST updates to optimize the video quality in case of packet loss. This technology is available only from Cisco Unified CM version 11.5 and later.
- D. ICE controls the bandwidth usage for Cisco Collaboration endpoints if the endpoints are located outside the company network.
Answer: B
Explanation:
Explanation
https://www.cisco.com/c/en/us/td/docs/solutions/PA/ICE/icepa125.html
NEW QUESTION # 114
What is the default DSCP value for video traffic that is routed through an Expressway server?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 115
An engineer must review a new traversal zone that is not establishing a successful connection between Expressway-C and Expressway-E. When the event log page on the Expressway-E is reviewed, an authentication failure is found with the detail "user not found". Which two actions must the engineer take to resolve the issue? (Choose two.)
- A. Ensure that the authentication credentials exist on the Expressway-E local database.
- B. Ensure that LDAP is properly configured and synchronized on the Expressway-E.
- C. Ensure that the authentication credentials configured on both zones to match.
- D. Disable TLS verification on the Expressway-E.
- E. Ensure that the authentication credentials exist on the Expressway-C local database.
Answer: A,C
NEW QUESTION # 116
......
Cisco 300-820 certification exam is an essential certification for IT professionals who work in collaboration technologies and solutions. Implementing Cisco Collaboration Cloud and Edge Solutions certification demonstrates a high level of expertise in implementing and maintaining Cisco Collaboration Cloud and Edge Solutions and can lead to career advancements and higher salaries.
Best Study Guides for 300-820 Exam
- Official exam guide
Before you begin with the detailed training, you have to check the complete list of topics. All the relevant areas are recorded on the official site and can be downloaded at your own convenience. This PDF file breaks down the four major domains of the Cisco 300-820 exam. Each of these holds 25% of the total syllabus. This means every section is equally substantial, hence the need to be competent in all divisions.
- David Schulz’s Cisco Unity Connection, 1st Edition (Amazon)
Though this book was already released years ago, most of its contents are still relevant to today’s Cisco Unity Connection solution. Make use of its thorough collection of concepts and techniques to efficiently master the crucial tasks involved in handling Cisco Unity Connection operations. These include planning, implementing, and maintaining voice messaging systems. Furthermore, the author delivers a more realistic approach in understanding the system lifecycle and that is by giving an extensive explanation, together with some practical examples, case studies, and industry set solutions.
- Brett Hall and Nik Smith’s Practical Cisco Unified Communications Security (Amazon)
Authored by industry experts, the book is a pivotal tool in mastering the core areas of Cisco UC system security. This material further addresses the fundamental attributes of how to effectively protect environments that aid in supporting various types like meetings, messaging, video, and voice. Likewise, it zooms in different real-time collaboration functions that are grounded on either mobile with remote access or mobile devices on BYOD initiatives.
For a quick reference of the content, this begins with the impact of guarding your workforce through safety techniques and basic physical security features. Once you understand its importance, it’s easy to take necessary countermeasures to keep Cisco Unified CM, Cisco Meeting Server, and Cisco Unity Connection secured and functional. Other essential subjects that are accounted for are Session Border Controllers, as well as UC services, resources, and applications.
- David J. Bateman’s Configuring Cisco Unified Communications Manager and Unity Connection: A Step-by-Step Guide (Amazon)
The book is created to provide you with an in-depth analysis of two remarkable Cisco systems: Unified Communications Manager and Unity Connection. With a detailed summary of the processes on how to design, configure, and manage both Cisco voice messaging and call processing, you get to maximize your skills and become well-rounded with the demands of the industry. In addition, there are lessons covering the procedures that administrators, integrators, and other professionals working with collaboration solutions should be aware of.
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