VMware VCDX Network Architecture Design

1. What does QoS (Quality of Service) in VMware networking primarily control?

Physical switch configuration

Bandwidth allocation and traffic prioritization

VM placement decisions

Host failover behavior

2. What is the primary consideration for network capacity planning in a VCDX design?

Current VM count only

Peak traffic patterns, growth projections, and redundancy requirements

Physical switch port count

Average utilization metrics only

3. In VCDX design, which security feature protects against unauthorized network access within virtual infrastructure?

NSX Distributed Firewall

Port security only

MAC address filtering

VLAN isolation alone

4. What does the term 'East-West traffic' refer to in a VCDX data center design?

Traffic between data centers

VM-to-VM communication within the data center

Traffic to external networks

Management network traffic

5. In a VCDX network design, which protocol is essential for dynamic routing between sites?

OSPF or BGP

VLAN tagging

Spanning Tree Protocol only

DHCP

6. What is the recommended number of uplinks for a highly available DVS in VCDX?

1 uplink

2 uplinks

4 or more uplinks

No uplinks needed

7. Which VCDX design principle ensures network scalability for growing virtual infrastructure?

Overprovisioning all network resources

Modular design with standardized building blocks

Centralized network management

Static network configuration

8. In NSX, what is a logical switch used for?

Connecting physical infrastructure

Creating virtual networks independent of physical topology

Managing VLAN assignments only

Replacing distributed virtual switches

9. What is the primary advantage of using converged network adapters (CNAs) in a VCDX design?

Reduced physical cabling and improved efficiency

Elimination of virtual networking

Replacement of DVS functionality

Automatic VLAN tagging

10. In VCDX design, which approach best supports live migration of VMs across data centers?

Identical network configuration at both sites

Stretched VLAN with NSX or Layer 2 extension

Static routing only

Local VLANs with manual reconfiguration

11. In VMware VCDX design, what is the primary purpose of a distributed virtual switch (DVS)?

Centralized management of virtual networking across multiple hosts

Replacing physical network switches entirely

Providing only vMotion connectivity

Isolating guest traffic from management traffic only

12. In a VCDX environment, which feature prevents broadcast storms and ensures network stability?

Storm control

Rate limiting

Traffic shaping

Congestion notification

13. What is the optimal MTU size for vSAN and high-performance workloads in a VCDX design?

1500 bytes

4096 bytes

9000 bytes (jumbo frames)

16000 bytes

14. Which configuration ensures proper network isolation in a multi-tenant VCDX environment?

Shared DVS with different VLANs per tenant

Separate DVS per tenant with isolated uplinks

Standard vSwitch for each tenant

No isolation needed in modern designs

15. In VCDX design, what is the primary benefit of using port groups?

Organizing VMs by physical location

Applying consistent networking policies to groups of VMs

Reducing the number of physical switches

Eliminating the need for VLANs

16. What is the recommended approach for designing redundancy in a VCDX network architecture?

Single network path with backup

Active-active design with multiple paths and load balancing

Passive standby architecture

Single point of failure accepted

17. VMware NSX provides which core capability for network design?

Hardware firewall replacement only

Software-defined networking and microsegmentation

Physical switch management

VLAN elimination

18. In a VCDX design, which traffic type should be prioritized using Network I/O Control for optimal performance?

VMotion and Fault Tolerance

Management and guest VM

ISCSI and NFS only

VSAN and vMotion

19. What is the maximum number of VLANs supported on a single DVS in vSphere?

256

1024

4094

8192

20. Which VMware feature enables network load balancing across multiple physical NICs in a vSphere environment?

Network I/O Control

NIC teaming

Virtual machine queue

Port mirroring

VMware VCDX Network Architecture Design Quiz