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QUESTION 441
Which voice codec should you use in order to provide toll quality calls?
A. G.711
B. G.718
C. G.722
D. G.729
Answer: A
QUESTION 442
Which is a factor in enterprise campus design decisions?
A. network application characteristics
B. routing protocol characteristics
C. switching latency characteristics
D. packet filtering characteristics
Answer: A
QUESTION 443
Which three statements are true regarding the virtual interface on a Cisco Wireless LAN Controller? (Choose three.)
A. supports mobility management
B. serves as a DHCP relay
C. used for all controller to AP communication
D. supports embedded Layer 3 security
E. default for out-of-band management
F. default for in-band management
G. provides connectivity to AAA servers
Answer: ABD
QUESTION 444
Which three are security services offered through Cisco Router Security? (Choose three.)
A. Trust and Identity
B. Integrated Threat Control
C. Unified Wireless Network Security Solution
D. Secure Connectivity
E. Voice-Messaging Security
F. Endpoint Security
G. Virtual Security Gateway
Answer: ABD
QUESTION 445
Which layer of the OSI model does Cisco recommend to place the enterprise network core layer, when designing a network based on its switched hierarchical design?
A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 4
Answer: C
QUESTION 446
In the enterprise data center, which are the three main components? (Choose three.)
A. Network Infrastructure
B. Interactive services
C. Data Center Management
D. Internet services
E. WAN services
F. VPN and remote access
Answer: ABC
QUESTION 447
You have a campus network that consists of only Cisco devices. You have been tasked to discover the device platforms, the IOS versions, and an IP address of each device to map the network. Which proprietary protocol will assist you with this task?
A. SNMP
B. TCP
C. CDP
D. ICMP
E. LLDP
Answer: C
QUESTION 448
Which three modular components are part of the Cisco Enterprise Edge Architecture? (Choose three.)
A. e-commerce module
B. Internet connectivity module
C. server farm module
D. remote access and VPN module
E. PSTN services module
F. enterprise branch module
G. building distribution module
Answer: ABD
QUESTION 449
Which three solutions are part of the Borderless Network Services? (Choose three.)
A. Wireless
B. Routing
C. TrustSec
D. MediaNet
E. Switching
F. EnergyWise
G. Next-Gen WAN
Answer: CDF
QUESTION 450
Which model of ISR is utilized for the teleworker design profile?
A. Cisco 1900 Series
B. Cisco 1800 Series
C. Cisco 800 Series
D. Cisco 500 Series
Answer: C
QUESTION 451
Which Cisco technology using Nexus NX-OS infrastructure allows the network architect to create up to four separate control and data plane instances of the Nexus chassis?
A. virtual port-channel
B. virtual routing and forwarding
C. virtual switching system
D. virtual device context
Answer: D
Explanation:
Virtualization
Virtual local-area network (VLAN), virtual storage-area network (VSAN), and virtual device contexts (VDC) help to segment the LAN, SAN, and network devices instances. Cisco Nexus 1000V virtual switch for VMware ESX and ESXI help to deliver visibility and policy control for virtual machines (VM).
Flexible networking options with support for all server form factors and vendors, including support for blade servers from Cisco, Dell, IBM, and HP with integrated Ethernet and Fiber Channel switches.
QUESTION 452
High availability is a key design consideration in the enterprise campus network. In a fully redundant topology, which is likely to provide faster IGP convergence during a failure?
A. redundant supervisors
B. redundant supervisors with Cisco Nonstop Forwarding (NSF) and Stateful Switchover (SSO)
C. single supervisors with tuned IGP timers
D. single supervisors
Answer: C
QUESTION 453
When designing for a remote worker, which two are typical requirements? (Choose two.)
A. best-effort interactive and low-volume traffic patterns
B. connections to the enterprise edge using Layer 2 WAN technologies
C. always-on connection with SLA from ISP
D. voice and IPsec VPN support
E. high-end security devices with stateful firewall filtering
F. dual or multihoming to ISPs
Answer: CD
QUESTION 454
Which three options are valid Cisco STP tools used to ensure best-practice access layer design for the enterprise campus? (Choose three.)
A. Portfast
B. UDLD
C. Root Guard
D. BPDU Guard
E. Flex Links
F. SPAN
G. EtherChannel
Answer: ACD
Explanation:
Access layer Limit VLANs to a single closet when possible to provide the most deterministic and highly available topology.
Use RPVST+ if STP is required. It provides the best convergence.
Set trunks to ON and ON with no-negotiate
Manually prune unused VLANs to avoid broadcast propagation. Use VTP Transparent mode, because there is little need for a common VLAN database in hierarchical networks. Disable trunking on host ports, because it is not necessary. Doing so provides more security and speeds up Port Fast.
Consider implementing routing in the access layer to provide fast convergence and Layer 3 load balancing.
Use Cisco STP Toolkit, which provides Port Fast, Loop Guard, Root Guard, and BPDU Guard.
QUESTION 455
When designing a WAN backup for voice and video applications, what three types of connections should be used? (Choose three.)
A. Private WAN
B. internet
C. ISDN
D. MPLS
E. dial-up
F. ATM
G. DSL
H. MPLS
Answer: ACD
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