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CCNA Exam 642-353 – Cisco Storage Network Design

Exam : 642-353
Title : Cisco Storage Network Design
Ver : 02.13.07

2 Example Questions out of 274 Questions:

QUESTION 5:
What are two reasons that remote backup (remote vaulting) is a core application of FCIP? (Choose two.)
A. FCIP is relatively inexpensive when compared with optical storage networking.
B. Enterprises and storage service providers (SSPs) can provide remote-vaulting services by using existing FCIP WAN infrastructures.
C. FCIP is very reliable because it always uses host-based synchronous replication.
D. FCIP is very reliable because it always uses disk-based asynchronous replication.
E. Applications are often sensitive to high latency, but in a properly designed FCIP backup implementation, the application can be protected from problems with the backup process by using techniques such as snapshots and split mirrors.

Answer: A,E

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CCNA Exam 642-432 – Cisco Voice Over IP

Exam : 642-432
Title : Cisco Voice Over IP
Ver : 02.13.07

2 Example Questions out of 213 Questions:

QUESTION 5
What is the E.164 numbering plan?
A. A proprietary PBX number plan.
B. The IETF North American number plan.
C. The European PBX standard telephony number plan.
D. The ITU worldwide number plan.

Answer: D

Explanation:
Numbering Scheme
The standard PSTN is a large, circuit-switched network. It uses a specific numbering scheme, which complies with the ITU-T international public telecommunications numbering plan (E.164) recommendations. For example, in North America, the North American Numbering Plan (NANP) is used, which consists of an area code, an office code, and a station code. Area codes are assigned geographically, office codes are assigned to specific switches, and station codes identify a specific port on that switch.

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CCNA: NAT and PAT Explanation

NAT and PAT Explanation

NAT and PAT main features:
NAT (Network Address Translation) can be used for a variety of purposes and can be either dynamically or statically assigned. Static NAT is designed to allow one-to-one mapping of local and global addresses. This is particularly useful for hosts which must have a consistent address that is accessible from the Internet. These internal hosts may be enterprise servers or networking devices.

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