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Virtualization Questions 2

February 3rd, 2021 in ENCOR 350-401 Go to comments

Question 1

Explanation

In contrast to type 1 hypervisor, a type 2 hypervisor (or hosted hypervisor) runs on top of an operating system and not the physical hardware directly. A big advantage of Type 2 hypervisors is that management console software is not required. Examples of type 2 hypervisor are VMware Workstation (which can run on Windows, Mac and Linux) or Microsoft Virtual PC (only runs on Windows).

Type1_Type2_Hypervisors.jpg

Question 2

Question 3

Explanation

There are two types of hypervisors: type 1 and type 2 hypervisor.

In type 1 hypervisor (or native hypervisor), the hypervisor is installed directly on the physical server. Then instances of an operating system (OS) are installed on the hypervisor. Type 1 hypervisor has direct access to the hardware resources. Therefore they are more efficient than hosted architectures. Some examples of type 1 hypervisor are VMware vSphere/ESXi, Oracle VM Server, KVM and Microsoft Hyper-V.

In contrast to type 1 hypervisor, a type 2 hypervisor (or hosted hypervisor) runs on top of an operating system and not the physical hardware directly. A big advantage of Type 2 hypervisors is that management console software is not required. Examples of type 2 hypervisor are VMware Workstation (which can run on Windows, Mac and Linux) or Microsoft Virtual PC (only runs on Windows).

Type1_Type2_Hypervisors.jpg

Question 4

Explanation

Each VM is provided with a virtual NIC (vNIC) that is connected to the virtual switch. Multiple vNICs can connect to a single vSwitch, allowing VMs on a physical host to communicate with one another at layer 2 without having to go out to a physical switch.

 

Virtual_machine_structure.jpg

Question 5

Explanation

There are two types of hypervisors: type 1 and type 2 hypervisor.

In type 1 hypervisor (or native hypervisor), the hypervisor is installed directly on the physical server. Then instances of an operating system (OS) are installed on the hypervisor. Type 1 hypervisor has direct access to the hardware resources. Therefore they are more efficient than hosted architectures. Some examples of type 1 hypervisor are VMware vSphere/ESXi, Oracle VM Server, KVM and Microsoft Hyper-V.

In contrast to type 1 hypervisor, a type 2 hypervisor (or hosted hypervisor) runs on top of an operating system and not the physical hardware directly. A big advantage of Type 2 hypervisors is that management console software is not required. Examples of type 2 hypervisor are VMware Workstation (which can run on Windows, Mac and Linux) or Microsoft Virtual PC (only runs on Windows).

Type 1 is more efficient and well performing, it is also more secure than type 2 because the flaws and vulnerabilities that are endemic to Operating Systems are often absent from Type 1, bare metal hypervisors. Type 1 has better performance, scalability and stability but supported by limited hardware.

Type1_Type2_Hypervisors.jpg

Question 6

Explanation

Static routes directly between VRFs are not supported so we cannot configure a direct static route between two VRFs.

The command “ip route vrf Customer1 172.16.1.0 255.255.255.0 172.16.1.1 global” means in VRF Customer1, in order to reach destination 172.16.1.0/24 then we uses the next hop IP address 172.16.1.1 in the global routing table. And the command “ip route 192.168.1.0 255.255.255.0 Vlan10” tells the router “to reach 192.168.1.0/24, send to Vlan 10”.

Question 7

Explanation

Hosted virtualization is type 2 hypervisor. In contrast to type 1 hypervisor, a type 2 hypervisor (or hosted hypervisor) runs on top of an operating system and not the physical hardware directly. A big advantage of Type 2 hypervisors is that management console software is not required. Examples of type 2 hypervisor are VMware Workstation (which can run on Windows, Mac and Linux) or Microsoft Virtual PC (only runs on Windows).

Type1_Type2_Hypervisors.jpg

Comments
  1. cert
    March 30th, 2021

    ADMIN… can you look into Q 2… many sites are reporting correct answer as B, D

  2. bob
    April 1st, 2021

    ^ Q2 has me confused as well

  3. contoso
    April 15th, 2021

    Q2: Correct answers are
    A. Use a single trunk link to an external Layer2 switch
    B. Use a virtual switch provided by the hypervisor.

    On switchport itself configure as trunk port, connect to hypervisor NIC card.
    From the vSwitch itself, specify VLANs to individual virtual machine.

  4. olegius
    April 16th, 2021

    contoso:
    If the vlan is the same, then the external switch is not needed. Becouse vSwitch will not allow frames to be sent out. A Layer 2 switch will not solve the intervlan connection problem.

  5. RM
    April 27th, 2021

    Q7 should be B??? Type 1 hypervisor

    In the question they say dedicated OS that PROVIDES the virtualization platform. So the OS provide the VM functionality.

    And the question is “What is this operating system described as?” What is the operating system? A operating system isn’t a “hosted virtualization”

    If they would mean “hosted virtualization”, they would ask “What kind of virtualization is this?”

    Please correct me if I’m wrong.

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