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Cloud & Virtual Services

November 24th, 2018 Go to comments

Question 1

Question 2

Explanation

Network virtualization architecture has three main components:
+ Network access control and segmentation of classes of users: Users are authenticated and either allowed or denied into a logical partition. Users a
re segmented into employees, contractors and consultants, and guests, with respective access to IT assets. This component identifies users who are authorized to access the network and then places them into the appropriate logical partition.
+ Path isolation: Network isolation is preserved across the entire enterprise: from the edge to the campus to the WAN and back again. This component maintains traffic partitioned over a routed infrastructure and transports traffic over and between isolated partitions. The function of mapping isolated paths to VLANs and to virtual services is also performed in component.
+ Network Services virtualization: This component provides access to shared or dedicated network services such as security, quality of service (QoS), and address management (Dynamic Host Configuration Protocol [DHCP] and Domain Name System [DNS]). It also applies policy per partition and isolates application environments, if required.

Cisco_network_virtualization.jpg

Reference: http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-series-switches/white_paper_c11-531522.pdf

Question 3

Explanation

Four technical services are essential to supporting the high level of flexibility, resource availability, and transparent resource connectivity required for cloud computing:

+ The Layer 3 network offers the traditional routed interconnection between remote sites and provides end-user access to cloud services.
+ The extended LAN between two or more sites offers transparent transport and supports application and operating system mobility.
+ Extended SAN services support data access and accurate data replication.
+ IP Localization improves northbound and southbound traffic as well as server-to-server workflows.

Reference: https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-xr-software/white_paper_c11-694882.html

Question 4

Explanation

Network virtualization architecture has three main components:
+ Network access control and segmentation of classes of users: Users are authenticated and either allowed or denied into a logical partition. Users are segmented into employees, contractors and consultants, and guests, with respective access to IT assets. This component identifies users who are authorized to access the network and then places them into the appropriate logical partition.
+ Path isolation: Network isolation is preserved across the entire enterprise: from the edge to the campus to the WAN and back again. This component maintains traffic partitioned over a routed infrastructure and transports traffic over and between isolated partitions. The function of mapping isolated paths to VLANs and to virtual services is also performed in component.
+ Network Services virtualization: This component provides access to shared or dedicated network services such as security, quality of service (QoS), and address management (Dynamic Host Configuration Protocol [DHCP] and Domain Name System [DNS]). It also applies policy per partition and isolates application environments, if required.

Reference: http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-series-switches/white_paper_c11-531522.pdf

Question 5

Explanation

Network virtualization architecture has three main components:

+ Network access control and segmentation of classes of users: Users are authenticated and either allowed or denied into a logical partition. Users are segmented into employees, contractors and consultants, and guests, with respective access to IT assets. This component identifies users who are authorized to access the network and then places them into the appropriate logical partition.

+ Path isolation: Network isolation is preserved across the entire enterprise: from the edge to the campus to the WAN and back again. This component maintains traffic partitioned over a routed infrastructure and transports traffic over and between isolated partitions. The function of mapping isolated paths to VLANs and to virtual services is also performed in component.

+ Network Services virtualization: This component provides access to shared or dedicated network services such as security, quality of service (QoS), and address management (Dynamic Host Configuration Protocol [DHCP] and Domain Name System [DNS]). It also applies policy per partition and isolates application environments, if required.

Reference: https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6500-series-switches/white_paper_c11-531522.html

Question 6

Explanation

Below are the 3 cloud supporting services cloud providers provide to customer:

+ SaaS (Software as a Service): SaaS uses the web to deliver applications that are managed by a third-party vendor and whose interface is accessed on the clients’ side. Most SaaS applications can be run directly from a web browser without any downloads or installations required, although some require plugins.
+ PaaS (Platform as a Service): are used for applications, and other development, while providing cloud components to software. What developers gain with PaaS is a framework they can build upon to develop or customize applications. PaaS makes the development, testing, and deployment of applications quick, simple, and cost-effective. With this technology, enterprise operations, or a third-party provider, can manage OSes, virtualization, servers, storage, networking, and the PaaS software itself. Developers, however, manage the applications.
+ IaaS (Infrastructure as a Service): self-service models for accessing, monitoring, and managing remote datacenter infrastructures, such as compute (virtualized or bare metal), storage, networking, and networking services (e.g. firewalls). Instead of having to purchase hardware outright, users can purchase IaaS based on consumption, similar to electricity or other utility billing.

Reference: https://apprenda.com/library/paas/iaas-paas-saas-explained-compared/

In the context of the three cloud service models (IaaS, PaaS and SaaS), DNS can be considered an IaaS service.

Reference: http://searchcloudsecurity.techtarget.com/tip/DNS-attacks-Compromising-DNS-in-the-cloud

Comments (21) Comments
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1 2 3403
  1. CCNA
    August 21st, 2018

    Which cloud service is typically used to provide DNS and DHCP services to an enterprise?
    A. IaaS
    B. DaaS
    C. SaaS
    D. PaaS

    In the VCE file, the answer is SaaS. But it is IaaS from your side. What is the correct answer?

  2. Kevin
    August 24th, 2018

    @CCNA

    Answer is IaaS.

    SaaS in mainly Layer 7. Whereas IaaS provides the networking (DNS, DHCP).

  3. Anonymous
    August 25th, 2018

    mlvb c

  4. AAA
    September 30th, 2018
  5. ItsShowtime
    October 6th, 2018

    Thanks to @Kevin and @AAA for confirming DNS and DHCP to be IaaS solutions.

    This is probably the most unclear matter on the entire CCNA (besides the question about the up/down interface in a GRE tunnel which I had before I studied dumps).

  6. stroik
    October 26th, 2018

    CCNA Cloud CLDFND 210-451 Official Cert Guide is obsolete and the passing score is 883. Are there any dumps available ?

  7. cibok
    October 26th, 2018

    PassLeader dumps are 100% wrong I just took the test

  8. zamil
    November 1st, 2018

    Hello everyone,

    My exam in two weeks. I am preparing with udemy video tutorial, 9tut sept 2018 dumps and ETE format, Chinese Dumps (2018.10.23) (LAST UPDATE) uploaded in mediafire by Rafael.

    If anyone has taken exam recently please let me know if all the dumps are still valid and if you got any new question please share with at zml_shv (at) yahoo (dot) com

    thanks in advance
    zamil

  9. Mohamed Ali
    November 2nd, 2018

    Could anyone let me know if they have passed the exam through practicing the dump question of 12/3/2018?

    For me the drop and drag questions are so hard. any solutions to this problem?

  10. stroik
    November 7th, 2018

    As far as I remember there was only one Drag & Drop in the test. The passing score was 883 which is very high.

  11. Any simulation
    November 17th, 2018

    Are there any Simulation questions on CCNA Cloud?

  12. stroik
    November 24th, 2018

    there are no simulations

  13. SS
    December 15th, 2018

    hello @zamil
    Where Can I find “chinese Dumps (2018.10.23) (LAST UPDATE) ???
    Thanks youu!! :)

  14. Torld
    January 2nd, 2019

    Thank you:
    Clear my Test with Excellent marks.

    config labs : ospfv3 and vlan
    trouble shoot lab : dhcp, rip , eigrp gre
    drag and drop BGP , tcp udp protocols
    SIM:IPv6 OSPF, DHCP, VLAN, EIGRP

    At web :
    t2m.io/qkhTw5dQ

  15. Alex
    February 5th, 2019

    Hi,

    can someone help me for a web site or a latest dump where I can get the dump 210-451
    I have failed the exam last week…
    many thanks

  16. maalvan
    March 15th, 2019

    please share the current ccna valid dumps kmalavan92(at)gmail(dot)com

  17. Masud
    March 21st, 2019

    Hi Admin,

    Can you check the answer for a question Question 5? According to explantion, it should be C, E and F. Your site says A, C, E.

    Policy enforcement is the component, not virtual network services

  18. Joao
    March 29th, 2019

    @Masud I agree with you!

  19. Malik
    April 21st, 2019

    Cisco Network Virtualization Architecture
    The concept of virtualization is not new and has been employed since the days of mainframe computers. It has been
    widely deployed as part of data center network designs and is seeing increasing adoption in campus networks.
    Network services virtualization within the campus helps IT focus on providing a unique set of policies to different
    network segments without having to deploy dedicated service nodes.
    Network virtualization architecture has three main components (Figure 2):
    ● Network access control and segmentation of classes of users: Users are authenticated and either
    allowed or denied into a logical partition. Users are segmented into employees, contractors and consultants,
    and guests, with respective access to IT assets. This component identifies users who are authorized to
    access the network and then places them into the appropriate logical partition.
    ● Path isolation: Network isolation is preserved across the entire enterprise: from the edge to the campus to
    the WAN and back again. This component maintains traffic partitioned over a routed infrastructure and
    transports traffic over and between isolated partitions. The function of mapping isolated paths to VLANs and
    to virtual services is also performed in component.
    ● Network Services virtualization: This component provides access to shared or dedicated network services
    such as security, quality of service (QoS), and address management (Dynamic Host Configuration Protocol
    [DHCP] and Domain Name System [DNS]). It also applies policy per partition and isolates application
    environments, if required.

  20. Giboteu
    April 29th, 2019

    I failed my CCNA 210-451 there were 4 drag and drop questions. There are currently no valid dumps for passing this test.

  21. Bartinya
    May 3rd, 2019

    Me too, I Just failed CCNA 210-451 with PassLeader dumps

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