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NEW QUESTION: 1
Which premise-based conferencing solution supports Skype for Business and WebRTC?
A. Telepresence Server
B. Cisco Meeting Server
C. WebEx
D. Spark
Answer: C
NEW QUESTION: 2
HOTSPOT
You need to recommend a solution that meets the AD RMS requirements of Customer1 and Customer2.
Which actions should you recommend performing for each customer? To answer, select the appropriate customer for each action in the answer area.
Answer:
Explanation:
Topic 4, A.Datum Corporation
Overview
A). Datum Corporation is an accounting company.
The company has a main office and two branch offices. The main office is located in Miami.
The branch offices are located in New York and Seattle.
Existing Environment
Network Infrastructure
The network contains an Active Directory domain named adatum.com. All servers run Windows Server 2008 R2. The main office has the following servers and client computers:
---
Two domain controllers configured as DNS servers and DHCP servers One file server that has multiples shares One thousand client computers that run Windows 7
Each branch office has the following servers and client computers:
--
One domain controller configured as a DNS server and a DHCP server Five hundred to 800 client computers that run Windows XP
Each office has multiple subnets. The network speed of the local area network (LAN) is 1 gigabit per second. The offices connect to each other by using a WAN link. The main office is connected to the Internet.
Current Issues
The WAN link between the Miami office and the Seattle office is a low bandwidth link with high latency. The link will not be replaced for another year.
Requirements
Application Requirements
The company is developing an application named App1. App1 is a multi-tier application that will be sold as a service to customers.
Each instance of App1 is comprised of the following three tiers:
---
A web front end A middle tier that uses Windows Communication Foundation (WCF) A Microsoft SQL Server 2008 R2 database on the back end
Each tier will be hosted on one or more virtual machines. Multiple tiers cannot coexist on the same virtual machine.
When customers purchase App1, they can select from one of the following service levels: Standard: Uses a single instance of each virtual machine required by App1. If a virtual machine becomes unresponsive, the virtual machine must be restarted. Enterprise: Uses multiple instances of each virtual machine required by App1 to provide high-availability and fault tolerance.
All virtual hard disk (VHD) files for App1 will be stored in a file share. The VHDs must be available if a server fails.
You plan to deploy an application named App2. App2 is comprised of the following two tiers:
--
--
A web front end A dedicated SQL Server 2008 R2 database on the back end
App2 will be hosted on a set of virtual machines in a Hyper-V cluster in the Miami office. The virtual machines will use dynamic IP addresses. A copy of the App2 virtual machines will be maintained in the Seattle office.
App2 will be used by users from a partner company named Trey Research. Trey Research has a single Active Directory domain named treyresearch.com. Treyresearch.com contains a server that has the Active Directory Federation Services server role and all of the Active Directory Federation Services (AD FS) role services installed.
Planned Changes
A). Datum plans to implement the following changes:
-
Replace all of the servers with new servers that run Windows Server 2012.
Implement a private cloud by using Microsoft System Center 2012 to host
instances of App1.
In the Miami office, deploy four new Hyper-V hosts to the perimeter network.
In the Miami office, deploy two new Hyper-V hosts to the local network.
In the Seattle office, deploy two new Hyper-V hosts.
In the Miami office, implement a System Center 2012 Configuration Manager
primary site that has all of the system roles installed.
Implement a public key infrastructure (PKI).
-- ----
-
Notification Requirements
A). Datum identifies the following notification requirements: Help desk tickets must be created and assigned automatically when an instance of
App1 becomes unresponsive.
Customers who select the Enterprise service level must receive an email
notification each time a help desk ticket for their instance of App1 is opened or closed.
Technical Requirements
A). Datum identifies the following technical requirements:
Minimize costs whenever possible.
Minimize the amount of WAN traffic
Minimize the amount of administrative effort whenever possible.
Provide the fastest possible failover for the virtual machines hosting App2.
Ensure that administrators can view a consolidated report about the software updates in all of the offices.
Ensure that administrators in the Miami office can approve updates for the client computers in all of the offices.
Security Requirements
A). Datum identifies the following security requirements:
An offline root certification authority (CA) must be configured.
Client computers must be issued certificates by a server in their local office.
Changes to the CA configuration settings and the CA security settings must be
logged.
Client computers must be able to renew certificates automatically over the Internet.
The number of permissions and privileges assigned to users must be minimized
whenever possible.
Users from a group named Group1 must be able to create new instances of App1
Client computers must be issued new certificates when the computers are
connected to the local network only.
The virtual machines used to host App2 must use BitLocker Drive Encryption
- in the private cloud. -- (BitLocker). -
Users from Trey Research must be able to access App2 by using their credentials from treyresearch.com.
NEW QUESTION: 3
ある企業がソフトウェアのデプロイを自動化するためにAWS CodeDeployを使用しています。展開は次の要件を満たす必要があります。
- トラフィック中にトラフィックを処理するには、多数のインスタンスが使用可能である必要があります
展開。トラフィックはそれらのインスタンス間でバランスが取れている必要があります。
障害が発生した場合、インスタンスは自動的に修復される必要があります。
- 新しいインスタンスをデプロイするには、新しいインスタンスを起動する必要があります。
手動プロビジョニングなしで自動的に改訂されます。
- トラフィックは新しい環境の半分の新しい環境に転送される必要があります。
一度にインスタンス。トラフィックがあれば展開は成功するはずです。
インスタンスの少なくとも半分に転送されます。そうでなければ、失敗するはずです。
- 新しいインスタンスのインスタンスにトラフィックをルーティングする前に、一時的
展開プロセス中に生成されたファイルは削除する必要があります。
- 展開が成功した時点で、元のインスタンスは
展開グループはコストを削減するためにすぐに削除する必要があります。
DevOpsエンジニアはどのようにこれらの要件を満たすことができますか?
A. アプリケーションロードバランサと青/緑の展開を使用します。 Auto ScalingグループとApplication Load Balancerターゲットグループをデプロイメントグループと関連付けます。 [自動]オプションを使用して、最小コピーのAuto Scalingグループの正常なホストを50%として定義したカスタム展開構成を作成し、その構成を展開グループに割り当てます。 AWS CodeDeployにデプロイグループの元のインスタンスを終了するように指示し、appsec.yml内のBeforeBlock Trafficフックを使用して一時ファイルを削除します。
B. アプリケーションロードバランサとインプレース展開を使用します。 Auto ScalingグループとApplication Load Balancerターゲットグループをデプロイメントグループと関連付けます。自動コピーオプションを使用し、展開設定としてCodeDeployDefault AllatOnceを使用します。
Auto Scalingグループ
AWS CodeDeployにデプロイグループの元のインスタンスを終了するように指示し、appsec.yml内のBlockTrafficフックを使用して一時ファイルを削除します。
C. アプリケーションロードバランサと青/緑の展開を使用します。 Auto ScalingグループとApplication Load Balancerターゲットグループをデプロイメントグループと関連付けます。 [自動]オプションを使用し、展開コピーのAuto Scalingグループ構成としてCodeDeployDefault HalfAtAtimeを使用します。 AWS CodeDeployにデプロイグループの元のインスタンスを終了するように指示し、appspec.yml内のBeforeAllowTrafficフックを使用して一時ファイルを削除します。
D. Application Load Balancerとインプレース展開を使用します。 Auto Scalingグループを展開グループに関連付けます。 [Auto Scalingグループを自動的にコピーする]オプションを使用し、展開構成としてCodeDeployDefault.OneAtAtimeを使用します。 AWS CodeDeployにデプロイグループの元のインスタンスを終了するように指示し、appspec.yml内のAllowTrafficフックを使用して一時ファイルを削除します。
Answer: D
NEW QUESTION: 4
You are the network administrator of an enterprise with a main site and multiple remote sites. Your network carries both VOIP and data traffic. You agree with your service provider to classify VOIP and data traffic according to the different service RFCs. How can your data and VOIP traffic be marked?
A. data marked with DSCP AF51, VOIP marked with DSCP EF
B. data marked with IP precedence 5, VOIP marked with DSCP EF
C. data marked with DSCP AF21, VOIP marked with DSCP EF
D. data marked with DSCP EF, VOIP marked with DSCP AF31
E. data marked with the DE-bit. VOIP marked with the CLP-bit
Answer: C
Explanation:
Expedited Forwarding
RFC 2598 defines the Expedited Forwarding (EF) PHB: "The EF PHB can be used to build a low
loss, low latency, low jitter, assured bandwidth, end-to-end service through DS (Diffserv) domains.
Such a service appears to the endpoints like a point-to- point connection or a "virtual leased line."
This service has also been described as Premium service." Codepoint 101110 is recommended
for the EF PHB, which corresponds to a DSCP value of 46. Vendor-specific mechanisms need to
be configured to implement these PHBs. Refer to RFC 2598 for more information about EF PHB.
DSCP was designed to be more granular and more scalable than IP precedence BUT with
backward compatibility.
The priority field (or type of service, ToS) was originally 3 bits, giving it the IP prec values 0-7 (0
being the lowest priority, 7 the highest). DSCP has an 8 bit field, of which 6 bits are used for
markings (the 6th bit is always 0). This gives it a larger number of values (both for per hop
behavior, or PHB, and drop precedence.
More on this later)
The last 2 bits are used for ECN or explicit congestion notification. This is a brand new feature (as
of Windows Vista) and is purportedly going to revolutionize internetwork traffic flow.
With the 6 bits allotted to DSCP, the first three (left to right) are used for Major Class, or Per Hop
Behavior.
These match up with the old IP Prec values of 0-7. The second 3 bits identify the drop
precedence. Higher = more likely to be dropped. This means that a DSCP marking of AF21 (major
class 2, drop precedence of 1) will be preferred over AF22 or AF23. An AF3x will beat any AF1x or
AF2x-the major class of 3 is higher than the major class, or PHB, of 2.
It is important to note the drop precedence is only used on classes 1-4. (Here is a table from
Wikipedia) A marking of 0 indicates 'best effort'
The notation DSCP xx is the bit notation. Eg AF12 = 001 100 which is a decimal value of 12.
Here's another one. AF43 = 100 110 (38) EF, which it equal to IP Prec of 5 is assigned a major
class of 5 and a drop precedence of 3 (this is odd, I don't know why this was done) The decimal
value for EF is DSCP 46 or 101 110.