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Q1. What are three key areas that need to be considered when designing a remote data center? (Choose three.)
A. power diversity
B. active directory services
C. Cisco IOS versions
D. data storage
E. applications
F. user access
G. packet routing
Answer: A,D,E
Q2. Which two devices would you place in your DMZ to ensure enterprise edge security? (Choose two.)
A. IPS
B. NAC
C. ASA
D. ACS
E. WCS
Answer: A,C
Q3. Which statement describes the methodology that supports the Cisco Enterprise Architecture models?
A. It divides the network into functional network modules.
B. It divides the network into role-based network modules.
C. It divides the network into regional network modules.
D. It divides the network into operational network modules.
Answer: A
Q4. Which WLC interface is dedicated for WLAN client data?
A. virtual interface B. dynamic interface
C. management interface
D. AP manager interface
E. service port interface
Answer: B
Explanation:
WLC Interface Types
A WLC has five interface types:
Management interface (static, configured at setup, mandatory) is used for in-band management, connectivity to AAA, and Layer 2 discovery and association.
Service-port interface (static, configured at setup, optional) is used for out-of-band management. It is an optional interface that is statically configured.
AP manager interface (static, configured at setup, mandatory except for 5508 WLC) is used for Layer 3 discovery and association. It has the source IP address of the AP that is statically configured.
Dynamic interface (dynamic) is analogous to VLANs and is designated for WLAN client data.
Virtual interface (static, configured at setup, mandatory) is used for leaver 3 security authentication, DHCP relay support, and mobility management.
Q5. What type of device can be installed to increase a broadcast domain?
A. router
B. switch
C. IDS
D. IPS
Answer: B
Q6. What two features are advantages of adding a secondary WAN link at the enterprise edge? (Choose two.)
A. provides additional bandwidth and load balancing capabilities
B. acts as a backup link in event the primary link fails
C. reduces capital and operational costs
D. improves security and prevents against denial of service attacks
E. distributes traffic proactively based on link utilization
Answer: A,B
Q7. DRAG DROP
Answer:
Q8. Which two link state routing protocols support IPv6 routing? (Choose two.)
A. BGP4+
B. OSPF
C. RIPng
D. EIGRP
E. IS-IS
Answer: B,E
Q9. Which of these statements is true concerning the data center access layer design?
A. The access layer in the data center is typically built at Layer 3, which allows for better sharing of services across multiple servers.
B. With Layer 2 access, the default gateway for the servers can be configured at the access or aggregation layer.
C. A dual-homing NIC requires a VLAN or trunk between the two access switches to support the dual IP addresses on the two server links to two separate switches.
D. The access layer is normally not required, as dual homing is standard from the servers to the aggregation layer.
Answer: B
Q10. Which of these is the equation used to derive a 64 Kbps bit rate?
A. 2 x 8 kHz x 4-bit code words
B. 8 kHz x 8-bit code words
C. 2 x 4-bit code words x 8 kHz
D. 2 x 4 kHz x 8-bit code words
Answer: D
Explanation: While the human ear can sense sounds from 20 to 20, 000 Hz, and speech encompasses sounds from about 200 to 9000 Hz, the telephone channel was designed to operate at about 300 to 3400 Hz. This economical range carries enough fidelity to allow callers to identify the party at the far end and sense their mood. Nyquist decided to extend the digitization to 4000 Hz, to capture higher-frequency sounds that the telephone channel may deliver. Therefore, the highest frequency for voice is 4000 Hz. According to Nyquist theory, we must double the highest frequency, so 2x4kHz = 8kHz.
Each sample will be encoded into a 8-bit code. Therefore 8kHz x 8-bit code = 64 Kbps (notice about the unit Kbps: 8kHz = 8000 samples per second so 8000 x 8-bit = 64000 bit per second = 64 Kilobit per second = 64 Kbps)
Link: http://encyclopedia2.thefreedictionary.com/Nyquist+theorem
Note:
Nyquist theory:
“When sampling a signal (e.g., converting from an analog signal to digital), the sampling frequency must be greater than twice the bandwidth of the input signal in order to be able to reconstruct the original perfectly from the sampled version.”