Exam Number/Code: 640-802
Exam Name: Cisco Certified Network Associate

The Introduction to Cisco Networking Technologies exam is one of the two qualifying exams available to candidates pursuing a two-exam option for CCNA. This exam tests content covered in the Introduction to Cisco Networking Technologies (INTRO) course including topics on Network Types, Network Media, Switching Fundamentals, TCP/IP, IP Addressing and Routing, WAN Technologies, Operating and Configuring IOS Devices, and Managing Network Environments. The exam will certify that the successful candidate has important knowledge and skills necessary to describe and identify major network and WAN components, along with their function and purpose

“Cisco Certified Network Associate”, also known as 640-802 exam, is a Cisco certification.
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QUESTION 51:
You work as a network technician at Certkiller .com. You have been assigned the
task of designing a new Certkiller internetwork. The main priority is the achieve the
highest reliability available, however not at all costs. Certkiller .com is willing to
spend more dollars to avoid downtime caused by link failure.
Which of the following four designs would provide some redundancy and increase
reliability for all four sites, but would cost less than a fully redundant topology?
A. Design Certkiller A
B. Design Certkiller B
C. Design Certkiller C
D. Design Certkiller D
Answer: B
Explanation:
You can think of the partial mesh Frame Relay design as the compromise between
network administrators and cost-saving managers.
Example:
QUESTION 52:
You work as a network technician at Certkiller .com. You have been assigned the
task of designing a new Certkiller internetwork. The main priority is to minimize the
link costs and at the same time wants to ensure the branch offices with direct
connectivity to the main site.
Which of the following four designs is to be preferred?
A. Design Certkiller A
B. Design Certkiller B
C. Design Certkiller C
D. Design Certkiller D
Answer: C
Explanation:
Every
network looks for cost efficiency. Redundancy is often sacrificed on the altar of monthly
cost. Thus, the hub and spoke Frame Relay network design is one of the more common.
In this configuration, you pick a centralized location (most likely, your largest, most
connected office) as the “hub” of the network. All other locations are considered
“spokes” and have a single virtual circuit connection back to the hub.
The major advantage of this configuration is the cost. It offers the cheapest monthly price
tag, which cost-cutting corporations enjoy. The disadvantages are beginning to mount
against this design, however. The redundancy is sorely lacking. If a single router (the
central router) loses connectivity for any reason (if the router crashes, if a trenching
company cuts through the line), your entire WAN goes down. The other disadvantage of
this design is beginning to eclipse even redundancy. It is the disadvantage of tandem
switching. Any time the spoke offices need to reach each other, they must go through the
hub office.
Example:
QUESTION 53:
A Certkiller network is shown in the exhibit below:
The routers in this network are running RIPv2. Which addressing scheme would
satisfy the needs of this network yet waste the fewest addresses?
A. Network 1: 192.168.10.0/26Network 2: 192.168.10.64/26Network 3:
192.168.10.128/26Serial link 1: 192.168.20.0/24Serial link 2: 192.168.30.0/24
B. Network 1: 192.168.10.0/26Network 2: 192.168.10.64/28Network 3:
192.168.10.80/29Serial link 1: 192.168.10.88/30Serial link 2: 192.168.10.96/30
C. Network 1: 192.168.10.0/26Network 2: 192.168.10.64/27Network 3:
192.168.10.96/28Serial link 1: 192.168.10.112/30Serial link 2: 192.168.10.116/30
D. Network 1: 192.168.10.0/27Network 2: 192.168.10.64/28Network 3:
192.168.10.96/29Serial link 1: 192.168.10.112/30Serial link 2: 192.168.10.116/30
Answer: C

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