2026年05月 Cisco 300-820実際の問題とブレーン問題集 [Q25-Q47]

質問25、 Which step is required when configuring Cisco Webex Hybrid Message Service?

質問26、 Which mechanism does TLS use to validate identity?

質問27、 Refer to the exhibit.

While troubleshooting Cisco Jabber login issues, there are some error messages. Why is the Jabber client unable to sign in?

質問28、 What is a key configuration requirement for Hybrid Message Service High Availability deployment with multiple IM and Presence clusters?

質問29、

Refer to the exhibit. An engineer is deploying mobile and remote access in an environment that already had functioning Business to Business calling. Mobile and remote access SIP registrations are failing. To troubleshoot, SIP logs were collected. How is this issue resolved?

質問30、 A MRA deployment is being configured where one of the requirements is for registered Jabber users to pull directory photos from an internal server.
What should be configured on the Expressway-C so that MRA registered clients reach this server?

質問31、 Which SIP media encryption mode is applied by default for newly created zones in the Cisco Expressway?

質問32、 Which step is required when configuring Cisco Webex Hybrid Message Service?

質問33、 Which two licenses are required for the B2B feature to work? (Choose two.)

質問34、 In Cisco Expressway, which information from an incoming search request does the pre-search transform configuration allow to be modified?

質問35、 How do the Cisco Expressway-C and Expressway-E servers transmit media to each other?

質問36、 Cisco Collaboration endpoints are exchanging encrypted signaling messages.
What is one major complication in implementing NAT ALG for voice and video devices?

質問37、 An Expressway Server has both network protocols (IPv4 and IPv6) enabled. Which two behaviors are correct? (Choose two.)

質問38、 Drag and drop the services from the left onto their descriptions on the right. Some services are used more than once.

質問39、 Which two types of information does Cisco Expressway back up? (Choose two.)

質問40、 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?

質問41、 Which two scenarios need a proper DNS configuration on Expressway servers? (Choose two.)

質問42、 Refer to the exhibit.

What is the result of a transformation applied to alias 88514?

質問43、 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?

質問44、 Which two licenses are required for the B2B feature to work? (Choose two.)

質問45、 What allows endpoints behind a NAT to discover the paths through which they will pass media?

質問46、 What are two reasons why port 8443 is unreachable from the Internet to the Expressway-E? (Choose two.)

質問47、 Refer to the exhibit.

What is the result of a transformation applied to alias 88514?