ISC2 Certified Cloud Security Professional (CCSP) Practice Question
Your private IaaS cloud hosts several VMware ESXi clusters. Each hypervisor is attached to a pair of Cisco access switches that provide VLAN trunking toward the data-center core, where the organization's only authorized DHCP servers reside. After onboarding a new customer, multiple tenants report that their VMs suddenly receive the wrong IP address and default-gateway information, breaking north-south connectivity. A span capture on one ESXi host's access port shows unsolicited DHCP OFFER frames with a source MAC address belonging to the new tenant's virtual machine.
You need to stop any rogue DHCP server messages from leaving tenant-facing switch ports while still permitting DHCP DISCOVER and REQUEST messages from clients to reach the legitimate upstream servers. Which Cisco switch feature should you configure on the access switches?
Enable BPDU Guard on every tenant access port.
Configure broadcast storm control on all tenant access ports.
Set up a port-mirroring session toward an intrusion-detection appliance.
Enable DHCP snooping on the access switches and mark the uplink ports as trusted.
Enabling DHCP snooping on the access switches lets you designate ports as trusted (toward the known DHCP infrastructure) or untrusted (toward tenant ESXi hosts). The switch builds a binding database of legitimate client-to-IP mappings and filters DHCP server responses-such as OFFER and ACK-arriving on untrusted ports, thereby preventing rogue VMs from handing out addresses. Storm control limits broadcast rate but does not understand DHCP. Port mirroring only copies traffic for analysis without blocking it. BPDU Guard affects spanning-tree behavior, not DHCP. Thus, DHCP snooping with the uplink ports set as trusted is the correct mitigation.
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is DHCP Snooping and how does it prevent rogue DHCP servers?
Open an interactive chat with Bash
What is north-south connectivity in a data center environment?
Open an interactive chat with Bash
Why do switches need trusted and untrusted port designation for DHCP Snooping?
Open an interactive chat with Bash
ISC2 Certified Cloud Security Professional (CCSP)
Cloud Security Operations
Your Score:
Report Issue
Bash, the Crucial Exams Chat Bot
AI Bot
Loading...
Loading...
Loading...
Pass with Confidence.
IT & Cybersecurity Package
You have hit the limits of our free tier, become a Premium Member today for unlimited access.
Military, Healthcare worker, Gov. employee or Teacher? See if you qualify for a Community Discount.
Monthly
$19.99
$19.99/mo
Billed monthly, Cancel any time.
3 Month Pass
$44.99
$14.99/mo
One time purchase of $44.99, Does not auto-renew.
MOST POPULAR
Annual Pass
$119.99
$9.99/mo
One time purchase of $119.99, Does not auto-renew.
BEST DEAL
Lifetime Pass
$189.99
One time purchase, Good for life.
What You Get
All IT & Cybersecurity Package plans include the following perks and exams .