CCNA 3 v7 – ENSA v7.02 – Modules 13 – 14: Emerging Network Technologies Exam Answers 100% 2023 2024

CCNA 3 v7 – ENSA v7.02 – Modules 13 – 14: Emerging Network Technologies Exam Answers Full 100% 2023 2024

This is NetAcad Cisco CCNA 3 v7 ENSA v7.02 Modules 13 – 14 Exam Answers 2023 2024 and Enterprise Networking, Security, and Automation ( Version 7.00) – Emerging Network Technologies Exam Answers Full 100%. All answers have been verified by experts.

Cisco Netacad ENSA Version 7.00 CCNA 3 v7 Modules 13 – 14: Emerging Network Technologies Exam Answers 2023 2024 – Enterprise Networking, Security, and Automation

1. Which cloud computing opportunity would provide the use of network hardware such as routers and switches for a particular company?

   • browser as a service (BaaS)
   • infrastructure as a service (IaaS)
   • software as a service (SaaS)
   • wireless as a service (WaaS)
     

     Answers Explanation & Hints: This item is based on information contained in the presentation. Routers, switches, and firewalls are infrastructure devices that can be provided in the cloud.

2. Which type of hypervisor would most likely be used in a data center?

   • Type 1
   • Type 2
   • Nexus
   • Hadoop
     

     Answers Explanation & Hints: The two type of hypervisors are Type 1 and Type 2. Type 1 hypervisors are usually used on enterprise servers. Enterprise servers rather than virtualized PCs are more likely to be in a data center.

3. Which is a characteristic of a Type 1 hypervisor?​

   • does not require management console software
   • installed directly on a server​
   • installed on an existing operating system​
   • best suited for consumers and not for an enterprise environment
     

     Answers Explanation & Hints: Type 1 hypervisors are installed directly on a server and are known as “bare metal” solutions giving direct access to hardware resources. They also require a management console and are best suited for enterprise environments.​

4. What component is considered the brains of the ACI architecture and translates application policies​?

   • the Nexus 9000 switch
   • the Application Policy Infrastructure Controller
   • the Application Network Profile endpoints
   • the hypervisor​
     

     Answers Explanation & Hints: The ACI architecture consists of three core components: the Application Network Profile, the Application Policy Infrastructure Controller, which serves as the brains of the ACI architecture, and the Cisco Nexus 9000 switch. ​

5. Which two layers of the OSI model are associated with SDN network control plane functions that make forwarding decisions? (Choose two.)​

   • Layer 1
   • Layer 2
   • Layer 3
   • Layer 4
   • Layer 5
     

     Answers Explanation & Hints: The SDN control plane uses the Layer 2 ARP table and the Layer 3 routing table to make decisions about forwarding traffic.

6. What pre-populates the FIB on Cisco devices that use CEF to process packets?

   • the routing table
   • the ARP table
   • the DSP
   • the adjacency table
     

     Answers Explanation & Hints: CEF uses the FIB and adjacency table to make fast forwarding decisions without control plane processing. The adjacency table is pre-populated by the ARP table and the FIB is pre-populated by the routing table.​

7. What is a function of the data plane of a network device?

   • resolving MAC addresses
   • building the routing table
   • forwarding traffic flows
   • sending information to the CPU for processing
     

     Answers Explanation & Hints: Networking devices operate in two planes; the data plane and the control plane. The control plane maintains Layer 2 and Layer 3 forwarding mechanisms using the CPU. The data plane forwards traffic flows.

8. Which statement describes the concept of cloud computing?

   • separation of application from hardware
   • separation of operating system from hardware
   • separation of control plane from data plane
   • separation of management plane from control plane
     

     Answers Explanation & Hints: Cloud computing is used to separate the application or service from hardware. Virtualization separates the operating system from the hardware.

9. Which cloud model provides services for a specific organization or entity?

   • a hybrid cloud
   • a community cloud
   • a public cloud
   • a private cloud
     

     Answers Explanation & Hints: Private clouds are used to provide services and applications to a specific organization and may be set up within the private network of the organization or managed by an outside organization.

10. provides a “pay-as-you-go” model, allowing organizations to treat computing and storage expenses as a utility

    • enables rapid responses to increasing data volume requirements
    • elimination of vulnerabilities to cyber attacks
    • distributed processing of large data sets in the size of terabytes
    • increases the dependance on onsite IT resources
      

      Answers Explanation & Hints: Organizations can use virtualization to consolidate the number of required servers by running many virtual servers on a single physical server. Cloud computing allows organizations to scale their solutions as required and to pay only for the resources they require.

11. Which type of Hypervisor is implemented when a user with a laptop running the Mac OS installs a Windows virtual OS instance?

    • virtual machine
    • bare metal
    • type 1
    • type 2
      

      Answers Explanation & Hints: Type 2 hypervisors, also know as hosted hypervisors, are installed on top of an existing operating system, such as Mac OS, Windows, or Linux.

12. A small company is considering moving many of its data center functions to the cloud. What are three advantages of this plan? (Choose three.)

    • The company only needs to pay for the amount of processing and storage capacity that it uses.
    • Cloud services are billed at a fixed fee no matter how much processing and storage are used by the company.
    • Cloud services enable the company to own and administer its own servers and storage devices.
    • The company can increase processing and storage capacity as needed and then decrease capacity when it is no longer needed.
    • Single-tenant data centers can easily grow to accommodate increasing data storage requirements.
    • The company does not need to be concerned about how to handle increasing data storage and processing demands with in-house data center equipment.
      

      Answers Explanation & Hints: Cloud computing offers many advantages to the company. Since the cloud data storage and processing facilities are owned by third-parties, the company does not need to be concerned about how it will handle increasing data storage and processing demands with its own data center equipment. The company can easily increase or decrease processing power and storage capacity based on need. Also, cloud services are billed by usage, so the company does not have the costs of supporting its own expensive data center that is not always used to maximum capacity.

13. How does virtualization help with disaster recovery within a data center?

    • guarantee of power
    • support of live migration
    • supply of consistent air flow
    • improvement of business practices
      

      Answers Explanation & Hints: Live migration allows moving of one virtual server to another virtual server that could be in a different location that is some distance from the original data center.

14. What technology allows users to access data anywhere and at any time?

    • data analytics
    • Cloud computing
    • virtualization
    • micromarketing
      

      Answers Explanation & Hints: Cloud computing allows organizations to eliminate the need for on-site IT equipment, maintenance, and management. Cloud computing allows organizations to expand their services or capabilities while avoiding the increased costs of energy and space.

15. Which action takes place in the assurance element of the IBN model?

    • translation of policies
    • verification and corrective action
    • integrity checks
    • configuring systems
      

      Answers Explanation & Hints: The assurance element of the IBN model is concerned with end-to-end verification of network-wide behavior.

16. Refer to the exhibit. Which data format is used to represent the data for network automation applications?

    

    • XML
    • JSON
    • YAML
    • HTML
      

      Answers Explanation & Hints: The common data formats that are used in many applications including network automation and programmability are as follows: JavaScript Object Notation (JSON) – In JSON, the data known as an object is one or more key/value pairs enclosed in braces { }. Keys must be strings within double quotation marks ” “. Keys and values are separated by a colon. eXtensible Markup Language (XML) – In XML, the data is enclosed within a related set of tags <tag>data</tag>. YAML Ain’t Markup Language (YAML) – In YAML, the data known as an object is one or more key value pairs. Key value pairs are separated by a colon without the use of quotation marks. YAML uses indentation to define its structure, without the use of brackets or commas.

17. What is the function of the key contained in most RESTful APIs?

    • It is the top-level object of the API query.
    • It is used to authenticate the requesting source.
    • It represents the main query components in the API request.
    • It is used in the encryption of the message by an API request.
      

      Answers Explanation & Hints: Many RESTful APIs, including public APIs, require a key. The key is used to identify the source of the request through authentication.

18. Match the term to the RESTful API request http://www.mapquestapi.com/directions/v2/route?outFormat=json&key=KEY&from=San+Jose,Ca&to=Monterey,Ca component. (Not all options are used.)

    

    Explanation & Hint: API server: This is the base URL or domain where the API is hosted. In the example, http://www.mapquestapi.com is the API server that the request is being sent to. Resources: This part of the URL specifies the particular resources or data you want to access or the operation you want to perform. Here, directions/v2/route likely refers to a service provided by the API for fetching directions or routing information between two points. Parameters: These are additional options that can modify the request or provide further instructions to the API. In the URL, parameters are provided after the ? and are separated by &. They are usually key-value pairs. outFormat=json: This parameter specifies the format of the response that the client wants from the API. outFormat=json means the client is expecting the response in JSON format. key=KEY: This is a placeholder for an actual API key which is required for authentication. The API key is a unique identifier that the client sends to authenticate its requests. from=San+Jose,Ca&to=Monterey,Ca: These parameters specify the starting point (from) and the destination (to) for which the client is seeking directions. The + indicates a space in URL encoding. Protocol: Although not directly labeled in the image, this is the http part at the very beginning of the URL, which defines the protocol over which the request is being made. It stands for Hypertext Transfer Protocol. Query: This term is not directly connected in the image, but it generally refers to the part of the URL where the parameters are defined (everything after the ?). Format: This term is also not directly connected in the image but is related to the outFormat parameter, defining the structure of the response data. Key: Connected to key=KEY, which is the API key mentioned earlier. Each of these components plays a specific role in the construction of a RESTful API request. The API server receives the request, the resources specify what is being requested, and the parameters provide additional context and information needed to fulfill the request. The format of the response is specified so that the client application knows how to handle the data it receives.

19. Which two configuration management tools are developed using Ruby? (Choose two.)

    • Chef
    • Ansible
    • Puppet
    • SaltStack
    • RESTCONF
      

      Answers Explanation & Hints: Chef and Puppet are configuration management tools developed using Ruby. Ansible and SaltStack are configuration management tools developed using Python. Ruby is typically considered a more difficult language to learn than Python. RESTCONF is a network management protocol.

20. Which term is used to describe a set of instructions for execution by the configuration management tool Puppet?

    • Pillar
    • Manifest
    • Playbook
    • Cookbook
      

      Answers Explanation & Hints: The configuration management tool Puppet uses the name Manifest to describe the set of instructions to be executed.

21. Which term is used to describe a set of instructions for execution by the configuration management tool SaltStack?

    • Pillar
    • Manifest
    • Playbook
    • Cookbook
      

      Answers Explanation & Hints: The configuration management tool SaltStack uses the name Pillar to describe the set of instructions to be executed.

22. Which scenario describes the use of a public API?

    • It can be used with no restrictions.
    • It is used only within an organization.
    • It requires a license.
    • It is used between a company and its business partners.
      

      Answers Explanation & Hints: Public, or open, APIs have no restrictions and are available to the public. Some API providers do require a user to obtain a free key or token prior to using the API in order to control the volume of API requests received and processed.

23. In which situation would a partner API be appropriate?

    • a vacation service site interacting with hotel databases to display information from all the hotels on its web site
    • company sales staff accessing internal sales data from their mobile devices
    • an internet search engine allowing developers to integrate the search engine into their own software applications
    • someone creating an account on an external app or website by using his or her social media credentials
      

      Answers Explanation & Hints: Partner API programs incorporate collaboration with other business. They facilitate communication and integration of software between a company and its business partners.

24. What is YAML?

    • It is a web application.
    • It is a scripting language.
    • It is a data format and superset of JSON.
    • It is a compiled programming language.
      

      Answers Explanation & Hints: Like JSON, YAML Ain’t Markup Language (YAML) is a data format used by applications to store and transport data. YAML is considered a superset of JSON.

25. Which RESTFul operation corresponds to the HTTP GET method?

    • read
    • update
    • patch
    • post
      

      Answers Explanation & Hints: RESTful operations correspond to the following HTTP methods (shown to the left with the RESTful operation on the right): POST > Create GET > Read PUT/PATCH > Update DELETE > Delete

26. Which technology virtualizes the network control plane and moves it to a centralized controller?​

    • SDN
    • IaaS
    • cloud computing
    • fog computing
      

      Answers Explanation & Hints: Networking devices operate in two planes: the data plane and the control plane. The control plane maintains Layer 2 and Layer 3 forwarding mechanisms using the CPU. The data plane forwards traffic flows. SDN virtualizes the control plane and moves it to a centralized network controller.​

27. What are two functions of hypervisors? (Choose two.)

    • to partition the hard drive to run virtual machines
    • to protect the host from malware infection from the virtual machines
    • to manage virtual machines
    • to allocate physical system resources to virtual machines
    • to share the antivirus software across the virtual machines
      

      Answers Explanation & Hints: The hypervisor does not protect the hosting OS from malware. Neither does it allow sharing software across virtual machines. The hard drive of the supporting computer does not need to be partitioned to run virtual machines. The hypervisor creates and manages virtual machines on a host computer and allocates physical system resources to them.

28. What is a difference between the functions of Cloud computing and virtualization?

    • Cloud computing utilizes data center technology whereas virtualization is not used in data centers.
    • Cloud computing requires hypervisor technology whereas virtualization is a fault tolerance technology.
    • Cloud computing separates the application from the hardware whereas virtualization separates the OS from the underlying hardware.
    • Cloud computing provides services on web-based access whereas virtualization provides services on data access through virtualized Internet connections.
      

      Answers Explanation & Hints: Cloud computing separates the application from the hardware. Virtualization separates the OS from the underlying hardware. Virtualization is a typical component within cloud computing. Virtualization is also widely used in data centers. Although the implementation of virtualization facilitates an easy server fault tolerance setup, it is not a fault tolerance technology by design. The Internet connection from a data center or service provider needs redundant physical WAN connections to ISPs.​​

29. How is the YAML data format structure different from JSON?

    • It uses indentations.
    • It uses hierarchical levels of nesting.
    • It uses brackets and commas.
    • It uses end tags.
      

      Answers Explanation & Hints: The structure in YAML is defined by indentations rather than brackets and commas.

30. What is the most widely used API for web services?

    • REST
    • SOAP
    • JSON-RPC
    • XML-RPC
      

      Answers Explanation & Hints: REST accounts for more than 80% of all API types used for web services, making it the most widely used web service API.

31. What is REST?

    • It is an architecture style for designing web service applications.
    • It is a way to store and interchange data in a structured format.
    • It is a human readable data structure that is used by applications for storing, transforming, and reading data.
    • It is a protocol that allows administrators to manage nodes on an IP network.
      

      Answers Explanation & Hints: REST is not a protocol or service, but rather a style of software architecture for designing web service applications.

32. What is a difference between the XML and HTML data formats?

    • XML formats data in binary whereas HTML formats data in plain text.
    • XML does not use predefined tags whereas HTML does use predefined tags.
    • XML does not require indentation for each key/value pair but HTML does require indentation.
    • XML encloses data within a pair of tags whereas HTML uses a pair of quotation makes to enclose data.
      

      Answers Explanation & Hints: XML is a human readable data structure used to store, transfer, and read data by applications. Like HTML, XML uses a related set of tags to enclose data. However, unlike HTML, XML uses no predefined tags or document structure.

33. To avoid purchasing new hardware, a company wants to take advantage of idle system resources and consolidate the number of servers while allowing for multiple operating systems on a single hardware platform. What service or technology would support this requirement?

    • virtualization
    • Cisco ACI
    • software defined networking
    • dedicated servers

    • Explanation & Hint: The service or technology that would support the requirement to take advantage of idle system resources, consolidate the number of servers, and allow for multiple operating systems on a single hardware platform is virtualization. Virtualization technology enables you to create multiple simulated environments or dedicated resources from a single physical hardware system. A software called a hypervisor connects directly to that hardware and allows you to split one system into separate, distinct, and secure environments known as virtual machines (VMs). These VMs can run their own operating systems, which means a single hardware platform can support multiple different operating systems and applications, allowing for server consolidation. The other options listed have different purposes: Cisco ACI (Application Centric Infrastructure) is a software-defined networking solution that helps in automating network configuration and management but does not deal with server virtualization. Software Defined Networking (SDN) is a networking approach that allows network administrators to manage network services through abstraction of lower-level functionality, which is not specifically related to server hardware consolidation. Dedicated servers are single-tenant servers, which means they are dedicated to a single customer, application, or task, and do not inherently provide a means to consolidate or virtualize resources.

34. To avoid purchasing new hardware, a company wants to take advantage of idle system resources and consolidate the number of servers while allowing for multiple operating systems on a single hardware platform. What service or technology would support this requirement?

    • virtualization
    • cloud services
    • data center
    • dedicated servers

    • Explanation & Hint: The service or technology that would meet the requirement of consolidating the number of servers and allowing for multiple operating systems on a single hardware platform, without purchasing new hardware, is virtualization. Virtualization technology uses software to create an abstraction layer over computer hardware that allows the hardware elements of a single computer—processors, memory, storage, and more—to be divided into multiple virtual computers, commonly called virtual machines (VMs). Each VM can run its own independent operating system and applications as if it were a separate physical device, thus making efficient use of the idle system resources. Here’s why the other options do not as directly meet the requirements: Cloud services typically involve off-premises resources provided by a third party. While cloud services can help avoid purchasing new hardware by utilizing the cloud provider’s resources, they are not a means to leverage existing idle resources in your current hardware. A data center is a facility that centralizes an organization’s IT operations and equipment, as well as where it stores, manages, and disseminates its data. A data center is not a technology but a physical place that houses the servers. It doesn’t inherently involve the consolidation of servers into fewer physical machines. Dedicated servers are the opposite of what is required. They are individual servers dedicated to a single tenant or purpose. They do not involve the consolidation of resources but rather could potentially represent underutilization of resources if not fully used.

35. Following a multicontinent advertising campaign for a new product, a company finds its client database and volume of orders are overloading its on-site computer systems but the company does not have any room to expand. What service or technology would support this requirement?

    • cloud services
    • data center
    • virtualization
    • dedicated servers

    • Explanation & Hint: In this scenario, where a company’s on-site computer systems are overloaded and there’s no room for physical expansion, cloud services would be the most suitable solution. Cloud services provide scalable, on-demand computing resources and services over the internet. A major benefit is elasticity, meaning you can scale up resources as needed to handle increased loads and scale down when demands are lower. This can be especially beneficial after a marketing campaign like the one described, which may cause sudden spikes in traffic and data. Here’s why the other options may not be as suitable: Data center: While using or expanding a data center could provide more resources, the company has stated that it doesn’t have room to expand. Data centers typically require physical space for hardware. Virtualization: While virtualization can make more efficient use of existing hardware by allowing multiple virtual machines to run on a single physical machine, it may not sufficiently address the issue if the current hardware is already overloaded. Dedicated servers: Adding more dedicated servers would increase capacity, but the company has indicated it has no room for expansion. Additionally, dedicated servers do not offer the same level of scalability and flexibility as cloud services, which can be quickly adjusted to meet demand.

36. Because of enormous growth in web traffic, a company has planned to purchase additional servers to help handle the web traffic. What service or technology would support this requirement?

    • dedicated servers
    • APIC-EM
    • Cisco ACI
    • software defined networking

    • Explanation & Hint: If a company is experiencing enormous growth in web traffic and is looking to handle this increase, the most direct solution among the options provided would be dedicated servers. Dedicated servers are physical servers that are purchased or rented exclusively for the company’s own needs. They are not shared with any other clients, providing the full resources of the server to handle web traffic, which can be crucial for performance during high traffic periods. Here’s a brief on why the other options may not directly support the requirement: APIC-EM (Application Policy Infrastructure Controller Enterprise Module): This is a part of Cisco’s software-defined networking solutions in the enterprise networks. While it can help manage the network policies and simplify operations, it doesn’t directly address the need for additional server capacity to handle web traffic. Cisco ACI (Application Centric Infrastructure): This is a software-defined networking solution in the data center that optimizes network, protects the business with a policy-based approach, and accelerates the application deployment. Like APIC-EM, it is more about network management and optimization, not about providing server capacity. Software Defined Networking (SDN): This is a networking approach that allows for the centralized management of network resources through software. SDN can help manage traffic flows across the network more efficiently but does not inherently provide additional server resources to handle increased web traffic. For immediate handling of increased web traffic, dedicated servers provide the necessary computing power. However, if the company wants to manage network resources efficiently or automate network configuration, they might consider SDN or Cisco’s network management solutions like ACI and APIC-EM.

37. Because of enormous growth in web traffic, a company has planned to purchase additional servers to help handle the web traffic. What service or technology would support this requirement?

    • dedicated servers
    • data center
    • virtualization
    • cloud services

    • Explanation & Hint: For handling an enormous growth in web traffic, the company can consider the following options: Dedicated servers: These are physical servers dedicated exclusively to the company’s website, which can be scaled up to meet the increased traffic demands. This could involve purchasing additional server hardware to manage the load. Data center: Utilizing more space and resources in a data center could help, but this option generally implies a significant investment in infrastructure and may not be as flexible or scalable in the short term. Virtualization: This would allow the company to create multiple virtual servers on existing hardware. It’s a cost-effective way to maximize the use of physical resources but may still require additional hardware if the current servers are at capacity. Cloud services: This is likely the most scalable option. Cloud services can provide on-demand resources and scalability to handle traffic spikes without the upfront costs of hardware. The company can quickly scale up or down as needed and pay for only what they use. Considering the need for scalability and the potential urgency of handling increased web traffic, cloud services might be the most appropriate technology. It provides the flexibility to handle load increases without the delay of purchasing and setting up physical servers, and without the need for physical space that dedicated servers and data centers require.

38. A company has recently become multinational. Employees are working remotely, in different time zones, and they need access to company services from any place at any time. What service or technology would support this requirement?

    • cloud services
    • virtualization
    • dedicated servers
    • data center

    • Explanation & Hint: For a multinational company with employees working remotely across different time zones, needing access to company services from any place at any time, the most suitable option would be cloud services. Cloud services provide remote access to computing resources and services over the internet, allowing employees to access the company’s applications and data from anywhere in the world, at any time, provided they have an internet connection. This flexibility is essential for multinational companies with a distributed workforce. The other options have limitations in this context: Virtualization is a technology that allows for creating virtual versions of computer hardware platforms, storage devices, and network resources. It can be part of a solution when used in conjunction with cloud services but on its own does not provide the remote access needed for a globally distributed workforce. Dedicated servers are physical servers that are exclusively used by one client. They do not inherently offer global accessibility or the flexibility required for a multinational, remote workforce. Data center is a facility that organizations use to house their critical applications and data. Like dedicated servers, a data center doesn’t inherently provide the global accessibility required in this scenario unless it is part of a broader cloud service offering. Therefore, cloud services are the best fit for providing the necessary access and flexibility for a multinational company’s remote workforce.

39. A company has recently become multinational. Employees are working remotely, in different time zones, and they need access to company services from any place at any time. What service or technology would support this requirement?

    • cloud services
    • virtualization
    • dedicated servers
    • Cisco ACI

    • Explanation & Hint: For a multinational company with employees working remotely across different time zones who need access to company services from any place at any time, cloud services would be the most supportive technology. Cloud services provide access to computing resources over the internet, allowing employees to access applications and data from anywhere, which is ideal for remote work scenarios and global accessibility. The services are scalable and can be increased or decreased as per demand, which is beneficial for a company that is expanding internationally. The other options, while useful in their own contexts, do not directly address the requirement for remote accessibility: Virtualization allows creating multiple virtual environments from a single set of physical hardware. This can improve the efficiency of resource use within a data center but does not inherently provide remote access for employees in different locations. Dedicated servers are physical servers that are fully dedicated to a single client or purpose. While they provide resources for handling specific tasks or hosting services, they are typically located in a single location and do not offer the flexibility required for a distributed workforce. Cisco ACI (Application Centric Infrastructure) is a software-defined networking solution that aims to simplify and optimize network infrastructure. It is more about managing and automating network configurations within data centers and does not provide global access to services for remote users. In summary, cloud services are the most appropriate solution for providing globally accessible, flexible, and scalable IT resources to support a distributed multinational workforce.

40. ABCTech is investigating the use of automation for some of its products. In order to control and test these products, the programmers require Windows, Linux, and MAC OS on their computers. What service or technology would support this requirement?

    • virtualization
    • software defined networking
    • Cisco ACI
    • dedicated servers

    • Explanation & Hint: For ABCTech’s requirement where programmers need to control and test products across different operating systems such as Windows, Linux, and MAC OS on their computers, virtualization would be the most appropriate service or technology. Virtualization allows for the creation of virtual machines on a single physical hardware platform, where each virtual machine can run a different operating system. This means that a programmer could have Windows, Linux, and potentially a macOS environment (though macOS virtualization is subject to Apple’s licensing restrictions and typically requires Apple hardware) on a single machine, switching between them as needed for development and testing purposes. The other technologies listed do not directly support the need to run multiple operating systems for development and testing: Software Defined Networking (SDN) is an approach to networking that uses software-based controllers or application programming interfaces (APIs) to direct traffic on the network and is not related to operating system environments. Cisco ACI (Application Centric Infrastructure) is a subset of SDN, a network optimization solution by Cisco, which focuses on enhancing network agility, simplifying operations, and improving security. It does not provide a development environment. Dedicated servers are servers dedicated to a single task or client. While they could theoretically be used to host different operating systems, they are not practical for a single developer’s use case where multiple OS environments are needed on a single workstation. Virtualization would give ABCTech’s programmers the flexibility to efficiently run and test applications in Windows, Linux, and MAC OS environments on their existing hardware.

41. ABCTech is investigating the use of automation for some of its products. In order to control and test these products, the programmers require Windows, Linux, and MAC OS on their computers. What service or technology would support this requirement?

    • virtualization
    • dedicated servers
    • software defined networking
    • data center

    • Explanation & Hint: For ABCTech’s requirement where programmers need to control and test products across different operating systems such as Windows, Linux, and MAC OS on their computers, virtualization would be the most suitable service or technology. Virtualization technology allows for the creation of virtual machines (VMs) on a single physical hardware platform. Each VM can run a different operating system, enabling a programmer to have Windows, Linux, and potentially a macOS environment on the same physical machine (though it’s important to note that macOS virtualization is subject to Apple’s licensing restrictions and typically requires Apple hardware). This setup is ideal for development and testing environments where flexibility and the ability to run multiple operating systems simultaneously are crucial. The other options are less suitable for this specific requirement: Dedicated servers are physical servers dedicated to a single task or client. While they could be used to run different operating systems, they are not practical for a scenario where a developer needs to quickly switch between multiple OS environments on their personal workstation. Software Defined Networking (SDN) is an approach to network management that enables dynamic, programmatically efficient network configuration. SDN is more about managing network resources and operations and does not directly relate to running different operating systems for development purposes. Data Center: This is a facility used to house computer systems and associated components. While data centers can host servers that might run different operating systems, this doesn’t align directly with the need for individual programmers to have access to multiple OS environments on their own computers. Therefore, virtualization is the most relevant and practical solution for ABCTech’s programmers to run multiple operating systems on their computers for testing and development purposes.

42. A network administrator has been tasked with creating a disaster recovery plan. As part of this plan, the administrator is looking for a backup site for all of the data on the company servers. What service or technology would support this requirement?

    • data center
    • dedicated servers
    • software defined networking
    • virtualization

    • Explanation & Hint: For the task of creating a disaster recovery plan and specifically for finding a backup site for all of the data on the company servers, a data center would be the most appropriate service or technology. Data Center: This refers to a facility used to house computer systems and associated components. A data center can serve as a primary or backup site for storing data and running servers. For disaster recovery, a data center in a different geographical location from the main site is often chosen to ensure data availability in case of a local disaster. Data centers offer robust infrastructure with redundancy, security, and high availability, which are crucial for disaster recovery plans. The other options have different primary functions: Dedicated Servers: These are servers dedicated to a single client or task. While they could be used for hosting backups, the term ‘dedicated servers’ alone does not encompass the broader requirements of a disaster recovery plan, such as the physical location, security, and redundancy of the backup site. Software Defined Networking (SDN): SDN is an approach to network management that allows dynamic, programmatically efficient network configuration to improve network performance and monitoring. SDN is valuable for managing network resources but does not directly address the need for a backup site for data. Virtualization: This involves creating virtual versions of computing resources such as servers, storage, and networks. Virtualization can be part of a disaster recovery solution by facilitating the rapid deployment of virtual machines, but it does not inherently provide a physical backup location for data. Therefore, utilizing a data center, potentially in a different geographical location, would be the best choice for ensuring that data is backed up and retrievable in the event of a disaster.