Cisco 300-820 Exam Topics:
| Section | Weight | Objectives |
|---|---|---|
| Key Concepts | 25% | - Describe the complications of NAT in a Collaboration environment - Describe the purpose of ICE, TURN and STUN - Describe Expressway media traversal - Describe protocol interworking on the Expressway
- Describe Expressway Licensing
- Describe SIP media encryption mode
- Describe Expressway Core dial plan elements
- Describe key Expressway settings
- Describe Expressway backup and restore procedure (stand alone and cluster) |
| Cisco WebEx Technologies | 25% | - Describe the signaling and media flows used in a Cisco WebEx Video Mesh deployment - Configure WebEx Hybrid Services/Connector
- Describe Cisco Jabber for Cloud and Hybrid deployments with Cisco WebEx Messenger |
| Mobile and Remote Access | 25% | - Configure a Mobile and Remote Access (MRA) solution
- Troubleshoot a Mobile and Remote Access (MRA) solution
|
| Initial Expressway Configurations | 25% | - Configure key Expressway settings
- Configure Expressway Core dial plan elements
- Configure toll fraud prevention on Expressway series (no custom CPL scripts)
- Troubleshoot a Business to Business (B2B) collaboration solution
|
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Certification Path for You to Pursue
After acquiring the CCNP Collaboration professional-level validation, it is a good idea for the candidates to opt for the next certification, i.e., the Cisco CCIE Collaboration. This is an expert-level endorsement that will teach you how to find advanced collaboration solutions by making use of the associated technologies offered by Cisco.
Cisco Implementing Cisco Collaboration Cloud and Edge Solutions (300-820日本語版) Sample Questions:
Question #1
図を参照してください。顧客から、Webex Meetings 中にビデオ品質が低下したとの報告がありました。エンジニアが Webex Control Hub の統計情報を調べたところ、顧客サイトからのアップリンク帯域幅が急激に変動していることがわかりました。ビデオパフォーマンスを回復するために、エンジニアはどのような 2 つの操作を行う必要がありますか?(2 つ選択してください。)
A. Webexビデオストリームで使用されるDSCP値をAF41からEFに変更します。
B. エンドポイントからの受信トラフィックのマーキングが期待されるDSCPと一致することを確認します。
C. 帯域幅の誤割り当てを避けるため、WANインターフェースのQoSを無効にします。
D. VIDEOクラスに割り当てられる優先帯域幅を増やします。
E. 「class-default」を再設定して、フェアキューの代わりにポリシングを使用するようにします。
Question #2
ファイアウォールの背後にある 2 つの内部 SIP エンドポイントのうち、外部デバイスに通話を発信するものはどれですか (2 つ選択してください)。
A. Expressway-C は内部エンドポイントと通信し、Expressway-E との間でメディアを転送します。
B. Expressway-E は、リモート SIP エッジ サーバーが通話を接続できるようにするための VPN サーバーとして使用されます。
C. Cisco エンドポイントは、プライベート IP アドレスの代わりに、パブリックにルーティング可能な静的 NAT SIP アドレスをアドバタイズするように設定されています。
D. Expressway-CはICEプロトコルを使用してリモート側と直接通信します。
E. Expressway-C は SIP SDP を書き換えて、独自の IP アドレスを外部の相手にアドバタイズします。
Question #3
図を参照してください。Expressway-EがURI [email protected]の通話をDNSゾーンにルーティングする場合、ExpresswayはどのDNSサーバーにSIP SRVレコードを照会しますか?
A. 10.30.30.30
B. 10.40.40.40
C. 10.10.10.10
D. 2020年10月20日
Question #4
Webexに登録されているローカルゲートウェイにおいて、アクセスSBCへのSRVクエリをセキュアSIP形式にするには、どの設定が必要ですか?
A. url sips
B. セッション輸送のひと口
C. セッショントランスポート TCP TLS
D. url sip
Question #5
Expressway-C と Expressway-E 間の B2B 展開にはどのゾーンが必要ですか?
A. 隣接ゾーン
B. トラバーサルゾーン
C. デフォルトゾーン
D. DNSゾーン
Solutions:
| Question #1 Correct Answer: B,D | Question #2 Correct Answer: A,C | Question #3 Correct Answer: D | Question #4 Correct Answer: A | Question #5 Correct Answer: B |


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