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Cisco 300-820: Topics
The Cisco 300-820 exam validates the knowledge and skills of the professionals in a wide range of areas. The content of this certification test revolves around four domains. Let’s have a closer look at these topics and the skills covered within them.
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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) |
| 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
|
| 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 |
Cisco 300-820: Career Opportunities
Acing the Cisco 300-820 exam and obtaining the corresponding certifications open doors to a successful career in the IT field. There is a host of career opportunities for the certified individuals, even for those who have just earned the certificate and do not yet have any working experience. The companies always tend to employ the professionals with the IT certification as it serves as confirmation that they have undergone the relevant training and possess sufficient knowledge of Cisco enabled networks. Some of the job roles that will be available to you after getting certified are outlined below:
- Help Desk Analyst
- Systems Engineer
- Network Administrator
- Network Architect
- Solutions Architect
- Network Engineer
The holders of the Cisco Certified Specialist – Collaboration Cloud & Edge Implementation and CCNP Collaboration certificates can also count on a decent salary. Thus, holding the position of a Network Architect, you can earn from $80,000 to $154,000 per annum. The title of a Solutions Architect can bring you from $75,000 to $159,000 per year.
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Cisco 300-820: Details
The Cisco 300-820 exam has the allocated duration of 90 minutes and is delivered in the English language only. To register for it, you need to create an account with Pearson VUE, the Cisco testing partner, and pay the fee of $300. To prepare for this certification exam, the applicants are recommended to enroll for the official training course, Implementing Cisco Collaboration Cloud and Edge Solutions (CLCEI), offered on the vendor’s webpage.
The successful completion of the Cisco 300-820 test leads to the Cisco Certified Specialist – Collaboration Cloud & Edge Implementation certification and satisfies the concentration exam requirement for the CCNP Collaboration certificate. To earn this professional-level option, the individuals are also required to pass the core test known as Implementing Cisco Collaboration Core Technologies (350-801 CLCOR). The CCNP Collaboration certification is valid for three years from the moment of its obtainment. After the expiration of this term, it must be renewed. The recertification process entails passing extra exams, completing Cisco educational activities, or a combination of both.
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Cisco Implementing Cisco Collaboration Cloud and Edge Solutions (300-820日本語版) Sample Questions:
図を参照してください。管理者は、Microsoft Lync 環境を実行しているビジネス パートナーとの B2B 相互運用を設定し、[email protected] への発信ビデオ通話は正常に行えています。しかし、[email protected] への着信通話は失敗しています。SRV 検索を実行すると、図に示されているレコードが返されます。この問題を解決するには、どのレコードを変更する必要がありますか?
- A. _collab-edge._tls.ciscovoice.com
- B. _h323ls._udp.ciscovoice.com
- C. _sipfederationtcp._tcp.ciscovoice.com
- D. _sips._tcp.ciscovoice.com
Correct Answer: C 🗳️
Cisco Expresswayは、以下のどの構成でよく導入されますか?
- A. Cisco Expressway-Eとペアで使用し、DMZに展開されたCUCMおよびExpressway-Cに接続します。
- B. Cisco Expressway-C搭載のスタンドアロンモデル
- C. Cisco Expressway-E搭載のスタンドアロン構成
- D. Cisco Expressway-Cとペアで使用し、DMZに展開されたCUCMおよびExpressway-Eに接続します。
Correct Answer: D 🗳️
図を参照してください。このExpresswayサーバーのゾーン構成における「タイプ」フィールドの値は何ですか?
- A. Expressway-C「トラバーサルクライアント」、Expressway-E「トラバーサルサーバー」
- B. 高速道路C「ネイバー」、高速道路E「ネイバー」
- C. Expressway-C「トラバーサルサーバー」、Expressway-E「トラバーサルクライアント」
- D. Expressway-C「DNS」、Expressway-E「トラバーサルサーバー」
Correct Answer: A 🗳️
Webex Calling のメディア最適化を有効にした後、ある企業で Webex アプリのユーザーと PSTN エンドポイント間の通話で、断続的に片方向音声が発生するようになりました。Webex ユーザー間の内部通話は正常に機能し、SIP シグナリングもエラーなく正常に完了します。コール フロー トレースによると、Webex アプリはローカル ゲートウェイへの直接メディア パスを作成しようとしますが、ネゴシエーションが頻繁に失敗し、リレー メディアへのフォールバックが不安定になります。この動作は、ユーザーから報告された音声の問題と一致しています。片方向音声の根本原因を特定するために、最初に調査すべき領域はどれですか?
- A. Webexアプリの診断機能を調べて、ジッターバッファリングの異常やネットワーク遷移中のRTPフロー抑制など、メディアエンジンの適応障害の兆候がないか確認します。
- B. Webex Calling リージョン設定でコーデックネゴシエーションパスを評価し、すべての参加者が同じメディア機能をサポートして通話が最適化されていることを確認します。
- C. ICE関連トラフィックのファイアウォール処理をレビューし、必要なSTUN/TURN/UDPフローと候補交換がメディアネゴシエーション中にブロックまたは変更されていないことを確認します。
- D. ローカルゲートウェイの SIP セッションの更新とキープアライブの間隔を検査し、最適化されたメディア通話中に推奨されるクラウドシグナリングタイマーと一致していることを確認します。
Correct Answer: C 🗳️
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B2B 機能が動作するために必要な 2 つのライセンスはどれですか? (2 つ選択してください。)
- A. 高度なネットワーク
- B. リッチメディアセッション
- C. リレーを回す
- D. トラバーサルサーバー
- E. デバイスのプロビジョニング
Correct Answer: B,D 🗳️
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