642-961 - CDCNID - Cisco Data Center Networking Infrastructure Design
Go back to
Which statement describes the aggregation layer?
It maintains session state and connection tables for redundancy.
What is a benefit of service virtualization?
reduced power consumption
Why are server-to-server traffic flows routed through the aggregation layer?
They are routed to provide load-balancing services between web and application servers.
Performance requirements for aggregation-to-aggregation traffic flows through the core layer are being assessed. What type or types of application traffic should be considered?
backup and replication traffic
Your customer wants to use distinct security policies for different departments. What must be configured?
unique firewall context for each department
Which type of HPC application requires low latency?
finite element analysis
How is FCIP traffic marked with DSCP values?
The Cisco MDS 9000 Series Multilayer Switch marks two DSCP values per FCIP tunnel.
Which type of network in an HPC environment most requires low latency?
Which service module configuration is recommended to automatically detect and block traffic from malicious hosts?
IDSM that is deployed in IPS mode
Your customer plans to deploy FWSM and IDSM modules in the aggregation layer. Which design should you avoid?
According to Cisco best practice, which service module should be placed in service switches within the aggregation layer?
Which statement is correct about Cisco Catalyst 6500 E-Series Switches?
They support all existing supervisors, line cards, switch fabrics, and software releases.
Why would you recommend a Cisco Catalyst 6509 Switch instead of a Cisco Catalyst 6513 Switch in an aggregation module design?
A larger number of 10-Gigabit Ethernet ports are needed.
Which feature is found in a Cisco Catalyst 6500 E-Series chassis but not in the older Catalyst 6500 chassis?
Which Cisco Catalyst switch model is recommended for the data center core?
Cisco Catalyst 6509 Switch
What advantage do 10-Gigabit Ethernet uplinks have over EtherChannels?
better load balancing of traffic
When hosts are noncompliant with security policies, which Cisco Catalyst 4948 Switch feature allows them to be isolated from the network?
According to the Cisco Network Foundation Protection model, which security feature is recommended for the data center core layer?
control plane protection
The Cisco Catalyst 4948 Switch supports which power supply configuration?
dual AC or DC power supplies
What advantage does InfiniBand have over Gigabit Ethernet in HPC environments?
Which access layer design helps reduce oversubscription?
loop-free with GLBP
Which security technique would you use to protect servers from SYN-flooding DoS attacks?
Which Cisco Catalyst 6500 Series line card is recommended for aggregation-to-core uplinks?
Which statement best describes the data center core layer?
load balances traffic between the core and aggregation layers
Which recommendation applies to OSPF in the data center core?
Adjust OSPF reference bandwidth for VLANs with 10-Gigabit Ethernet links.
Which Cisco Catalyst 6500 Series line card requires a Switch Fabric Module?
Which Cisco Server Fabric Switch model provides up to 12 InfiniBand ports and up to 6 Ethernet ports?
What is the total bandwidth available to a Cisco Catalyst 6500 Series CEF720 line card?
How do blade servers connect to Cisco Catalyst blade switch cards?
internal chassis connections
Which data center network-architecture change is a result of the adoption of blade and 1-RU server technologies?
Layer 2 fault domains growing larger
Which statement describes the performance requirements for a synchronous data-replication application using FCIP?
bursty throughput and latency-sensitive
Which statement best describes two-tier data center networks?
more frequent switch upgrades
Which of the following attack types should be mitigated in the data center core layer?
Which two security vulnerabilities does the FWSM application inspection engine mitigate? (Choose two.)
Which layer connects to the campus core in a large data center network?
data center core
How many FWSM modules are needed to support 8 Gbps of throughput through an aggregation module?
Which recommendation applies to the aggregation layer?
Configure OSPF in the data center as a stub, totally stubby, or NSSA area.
What is the Cisco best-practice recommendation for the maximum number of HSRP instances per aggregation module?
Which of the following techniques should be used to mitigate DDoS attacks in the data center access layer?
Dynamic ARP Inspection
Which statement is correct about the Cisco Catalyst 4948 Switch?
Which of the following statements describes the data center core?
Layer 2 domains should be limited to point-to-point.
In a data-center access layer switch failure, which design would help reduce convergence time?
Cisco Catalyst 6506 Switch in an end-of-rack configuration
How do you configure an FWSM to support multiple DMZs on a network?
Use routed mode.
A very large blade-server deployment has high throughput requirements for both data and storage networks. Which access layer option would you recommend?
blade server InfiniBand switch with Cisco SFS 3000 Series Multifabric Switch
Which two of the following are appropriate choices for mainframe IP connectivity? (Choose two.)
OSA mainframe ports that are attached directly to aggregation switches
ESCON mainframe ports that are attached to Cisco Catalyst 7200 Series Routers with ESCON cards
Which problem can result from end-of-rack designs?