Installing and Configuring Windows Server 2012 Exam Hyper-V & Server Virtualization 2 — Questions and Answers
Question 1: Which Hyper-V virtual switch type allows VMs to communicate with each other and the host but not with external networks?
- External virtual switch
- Internal virtual switch (Correct answer)
- Private virtual switch
- Bridged virtual switch
Correct answer: Internal virtual switch
An internal virtual switch allows communication between VMs and the Hyper-V management OS but provides no connectivity to external networks.
Question 2: Which Hyper-V storage type provides the best I/O performance for intensive workloads by bypassing virtualization overhead?
- Differencing disk
- Dynamically expanding disk
- Fixed-size disk
- Pass-through disk (Correct answer)
Correct answer: Pass-through disk
Pass-through disks allow VMs to access physical storage directly without any virtual disk file abstraction, delivering the best possible I/O performance.
Question 3: What is a differencing disk in Hyper-V?
- A disk that grows dynamically as data is added
- A virtual disk that stores only changes relative to a parent disk (Correct answer)
- A disk used for automatic VM snapshots
- A fixed-size disk with pre-allocated storage
Correct answer: A virtual disk that stores only changes relative to a parent disk
A differencing disk is linked to a parent disk and stores only the blocks that have changed, reducing storage consumption for derived VMs.
Question 4: Which feature allows a physical network adapter to present virtual functions directly to VMs, bypassing the virtual switch?
- SR-IOV (Single Root I/O Virtualization) (Correct answer)
- NIC Teaming
- VLAN tagging
- Virtual Machine Queue
Correct answer: SR-IOV (Single Root I/O Virtualization)
SR-IOV partitions a physical NIC into virtual functions that can be assigned directly to VMs, bypassing the Hyper-V virtual switch for reduced latency.
Question 5: What native Windows Server 2012 feature combines multiple network adapters for bandwidth aggregation and failover?
- Network Load Balancing (NLB)
- NIC Teaming (LBFO) (Correct answer)
- Failover Clustering
- MPIO
Correct answer: NIC Teaming (LBFO)
NIC Teaming (Load Balancing and Failover) is a built-in Windows Server 2012 feature that aggregates multiple NICs for increased throughput and redundancy.
Question 6: What does the Hyper-V Virtual Machine Queue (VMQ) feature do?
- Prioritizes VM startup order during host boot
- Delivers network packets directly to a VM's memory to reduce host CPU overhead (Correct answer)
- Queues storage I/O operations for better disk scheduling
- Manages the order in which VM snapshots are applied
Correct answer: Delivers network packets directly to a VM's memory to reduce host CPU overhead
VMQ allows a physical NIC to deliver network packets directly into a VM's memory buffer, offloading CPU processing and improving network throughput.
Installing and Configuring Windows Server 2012 Exam Hyper-V & Server Virtualization 2
Which Hyper-V virtual switch type allows VMs to communicate with each other and the host but not with external networks?