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NEW QUESTION: 1
ケーススタディ：5 - Dress4win
会社概要
Dress4winは、ユーザーがWebサイトとモバイルアプリケーションを使用して自分のワードローブを整理および管理するのに役立つWebベースの会社です。同社はまた、ユーザーをデザイナーや小売業者と結びつける活発なソーシャルネットワークを開拓しています。彼らは広告、eコマース、紹介、そしてフリーミアムのアプリモデルを通して彼らのサービスを収益化します。アプリケーションは、創設者のガレージにある数台のサーバーから、併置されたデータセンターにある数百台のサーバーとアプライアンスにまで拡大しました。ただし、インフラストラクチャの容量は、アプリケーションの急成長には不十分です。この成長と会社がより早く革新したいという願望のために。
Dress4Winはパブリッククラウドへの完全移行を約束しています。
ソリューションコンセプト
Dress4winは、クラウドへの移行の第一段階として、開発環境とテスト環境を移行しています。現在のインフラストラクチャは単一の場所にあるため、彼らは障害回復サイトも構築しています。アーキテクチャのどのコンポーネントをそのまま移行できるのか、またどのコンポーネントを移行する前に変更する必要があるのか​​はわかりません。
既存の技術環境
Dress4winアプリケーションは、単一のデータセンターロケーションから配信されます。すべてのサーバーはUbuntu LTS v16.04を実行しています。
データベース：
MySQL. 1 server for user data, inventory, static data:
* - MySQL 5.8
- 8 core CPUs
- 128 GB of RAM
- 2x 5 TB HDD (RAID 1)
Redis 3 server cluster for metadata, social graph, caching. Each server is:
* - Redis 3.2
- 4 core CPUs
- 32GB of RAM
Compute:
40 Web Application servers providing micro-services based APIs and static content.
* - Tomcat - Java
- Nginx
- 4 core CPUs
- 32 GB of RAM
20 Apache Hadoop/Spark servers:
* - Data analysis
- Real-time trending calculations
- 8 core CPUS
- 128 GB of RAM
- 4x 5 TB HDD (RAID 1)
3 RabbitMQ servers for messaging, social notifications, and events:
* - 8 core CPUs
- 32GB of RAM
Miscellaneous servers:
* - Jenkins, monitoring, bastion hosts, security scanners
- 8 core CPUs
- 32GB of RAM
Storage appliances:
iSCSI for VM hosts
* Fiber channel SAN - MySQL databases
* - 1 PB total storage; 400 TB available
NAS - image storage, logs, backups
* - 100 TB total storage; 35 TB available
Business Requirements
Build a reliable and reproducible environment with scaled parity of production.
* Improve security by defining and adhering to a set of security and Identity and Access
* Management (IAM) best practices for cloud.
Improve business agility and speed of innovation through rapid provisioning of new resources.
* Analyze and optimize architecture for performance in the cloud.
* Technical Requirements
Easily create non-production environment in the cloud.
* Implement an automation framework for provisioning resources in cloud.
* Implement a continuous deployment process for deploying applications to the on-premises
* datacenter or cloud.
Support failover of the production environment to cloud during an emergency.
* Encrypt data on the wire and at rest.
* Support multiple private connections between the production data center and cloud
* environment.
エグゼクティブステートメント
当社の投資家は、現在のインフラストラクチャーを使用してコストを拡大および抑制する能力について懸念しています。また、競合他社がパブリッククラウドプラットフォームを使用して初期投資を相殺し、より優れた機能の開発に集中できるようにすることも懸念されています。私たちの交通パターンは朝と週末の夜に最も高いです。それ以外のときは、80％の容量がアイドル状態です。
当社の設備投資は現在、当社の四半期予測を上回っています。クラウドへの移行により、最初は支出が増加する可能性がありますが、次のハードウェア更新サイクルの前に完全に移行する予定です。パブリッククラウド戦略の今後5年間の総所有コスト（TCO）分析では、現在のモデルよりも30％から50％のコスト削減が達成されます。
この質問については、Dress4Winのケーススタディを参照してください。監査中に法的に準拠するには、Dress4Winは、Googleクラウド上のリソースの設定またはメタデータを変更するすべての管理操作について洞察を与えることができなければなりません。
あなたは何をするべきか？
A. Stackdriver Monitoringを使用して、プロジェクトのアクティビティに関するダッシュボードを作成します。
B. GCPコンソールおよびStackdriver Loggingの[Activity]ページを使用して、必要な洞察を提供します。
C. Stackdriver Traceを使用してトレースリスト分析を作成します。
D. すべてのプロジェクトでCloud Identity-Aware Proxyを有効にし、管理者グループをメンバーとして追加します。
Answer: B

NEW QUESTION: 2
SIMULATION
You are a network engineer with ROUTE.com, a small IT company. They have recently merged two organizations and now need to merge their networks as shown in the topology exhibit. One network is using OSPF as its IGP and the other is using EIGRP as its IGP. R4 has been added to the existing OSPF network to provide the interconnect between the OSPF and EIGRP networks. Two links have been added that will provide redundancy.
The network requirements state that you must be able to ping and telnet from loopback 101 on R1 to the OPSF domain test address of 172.16.1.100. All traffic must use the shortest path that provides the greatest bandwidth. The redundant paths from the OSPF network to the EIGRP network must be available in case of a link failure. No static or default routing is allowed in either network.
A previous network engineer has started the merger implementation and has successfully assigned and verified all IP addressing and basic IGP routing. You have been tasked with completing the implementation and ensuring that the network requirements are met. You may not remove or change any of the configuration commands currently on any of the routers. You may add new commands or change default values.

A. Check the E part for details answer.
First we need to find out 5 parameters (Bandwidth, Delay, Reliability, Load, MTU) of the s0/0/0 interface (the interface of R2 connected to R4) for redistribution:
R2#show interface s0/0/0
Write down these 5 parameters, notice that we have to divide the Delay by 10 because the metric unit is in tens of microsecond. For example, we get Bandwidth=1544 Kbit, Delay=20000 us, Reliability=255, Load=1, MTU=1500 bytes then we would redistribute as follows:
R2#config terminal
R2(config)# router ospf 1
R2(config-router)# redistribute eigrp 100 metric-type 1 subnets
R2(config-router)#exit
R2(config-router)#router eigrp 100
R2(config-router)#redistribute ospf 1 metric 1544 2000 255 1 1500
Note: In fact, these parameters are just used for reference and we can use other parameters with no problem.
If the delay is 20000us then we need to divide it by 10, that is 20000 / 10 = 2000) For R3 we use the show interface fa0/0 to get 5 parameters too R3#show interface fa0/0 For example we get Bandwidth=10000 Kbit, Delay=1000 us, Reliability=255, Load=1, MTU=1500 bytes R3#config terminal R3(config)#router ospf 1 Finally you should try to "show ip route" to see the 172.16.100.1 network (the network behind R4) in the routing table of R1 and make a ping from R1 to this network.
Note: If the link between R2 and R3 is FastEthernet link, we must put the command below under EIGRP process to make traffic from R1 to go through R3 (R1 -> R2 -> R3 -> R4), which is better than R1 -> R2 -> R4.
R2(config-router)# distance eigrp 90 105
This command sets the Administrative Distance of all EIGRP internal routes to 90 and all EIGRP external routes to 105, which is smaller than the Administrative Distance of OSPF (110) -> the link between R2 & R3 will be preferred to the serial link between R2 & R4.
Note: The actual OPSF and EIGRP process numbers may change in the actual exam so be sure to use the actual correct values, but the overall solution is the same.
B. Check the E part for details answer.
First we need to find out 5 parameters (Bandwidth, Delay, Reliability, Load, MTU) of the s0/0/0 interface (the interface of R2 connected to R4) for redistribution:
R2#show interface s0/0/0
Write down these 5 parameters, notice that we have to divide the Delay by 10 because the metric unit is in tens of microsecond. For example, we get Bandwidth=1544 Kbit, Delay=20000 us, Reliability=255, Load=1, MTU=1500 bytes then we would redistribute as follows:
R2#config terminal
R2(config)# router ospf 1
R2(config-router)# redistribute eigrp 100 metric-type 1 subnets
R2(config-router)#exit
R2(config-router)#router eigrp 100
R2(config-router)#redistribute ospf 1 metric 1544 2000 255 1 1500
Note: In fact, these parameters are just used for reference and we can use other parameters with no problem.
If the delay is 20000us then we need to divide it by 10, that is 20000 / 10 = 2000) For R3 we use the show interface fa0/0 to get 5 parameters too R3#show interface fa0/0 For example we get Bandwidth=10000 Kbit, Delay=1000 us, Reliability=255, Load=1, MTU=1500 bytes R3#config terminal R3(config)#router ospf 1 R3(config-router)#redistribute eigrp 100 metric-type 1 subnets R3(config)#exit R3(config-router)#router eigrp 100 R3(config-router)#redistribute ospf 1 metric 10000 100 255 1 1500 Finally you should try to "show ip route" to see the 172.16.100.1 network (the network behind R4) in the routing table of R1 and make a ping from R1 to this network.
Note: If the link between R2 and R3 is FastEthernet link, we must put the command below under EIGRP process to make traffic from R1 to go through R3 (R1 -> R2 -> R3 -> R4), which is better than R1 -> R2 -> R4.
R2(config-router)# distance eigrp 90 105
Answer: B

NEW QUESTION: 3
A customer is implementing pcAnywhere and has very strict security guidelines. How can a system administrator help ensure that pcAnywhere is secure and still use all of its features?
A. use encryption
B. use PID/PPS
C. block the unsecure ports
D. select View Only mode
Answer: A

NEW QUESTION: 4

A. Option C
B. Option B
C. Option A
D. Option D
Answer: A