Pass4sure Cisco CCNP ISCW 642-825 Exam
ISCW – Implementing Secure Converged Wide Area Networks : 642-825 Exam
Exam Number/Code: 642-825
Exam Name: ISCW – Implementing Secure Converged Wide Area Networks
VUE Code: 642-825
Questions Type: Single choice,
“ISCW – Implementing Secure Converged Wide Area Networks”, also known as 642-825 exam, is a Cisco certification.
Preparing for the 642-825 exam? Searching 642-825 Test Questions, 642-825 Practice Exam, 642-825 Dumps?
With the complete collection of questions and answers, Pass4sure has assembled to take you through 172 Q&As to your 642-825 Exam preparation. In the 642-825 exam resources, you will cover every field and category in CCNP helping to ready you for your successful Cisco Certification.
Questions and Answers : 172 Q&As
Updated: April 5th , 2008
Market Price: $129.99
The Implementing Secure Converged Wide Area Networks (ISCW 642-825) is a qualifying exam for the Cisco Certified Network Professional CCNP®. The ISCW 642-825 exam will certify that the successful candidate has important knowledge and skills necessary to secure and expand the reach of an enterprise network to teleworkers and remote sites with focus on securing remote access and VPN client configuration. The exam covers topics on Cisco hierarchical network model as it pertains to the WAN, teleworker configuration and access, frame mode MPLS, site-to-site IPSEC VPN, Cisco EZVPN, strategies used to mitigate network attacks, Cisco device hardening and IOS firewall feature
QUESTION NO: 1
A few small certifyme.com locations use HFC cable to connect to the certifyme.com WAN.
Which HFC cable network statement is true about the downstream data channel to
the customer and the upstream data channel to the service provider?
A. The upstream data path is assigned a channel in a higher frequency range than the
downstream path has.
B. The downstream data path is assigned a 30 MHz channel and the upstream data path is
assigned a 1 MHz channel.
C. The downstream data path is assigned a fixed bandwidth channel and the upstream
data path uses a variable bandwidth channel.
D. Both upstream and downstream data paths are assigned in 6 MHz channels.
E. None of the above.
Answer: D
Explanation:
Hybrid fiber-coaxial (HFC): A mixed optical-coaxial network in which optical fiber
replaces some or all of the traditional trunk portion of the cable network.
The HFC architecture is the evolution of an initial cable system and signifies a network
that incorporates both optical fiber along with coaxial cable to create a broadband
network. By upgrading a cable plant to an HFC architecture, you can deploy a data
network over an HFC system to offer high-speed Internet services and you can serve
more subscribers. The cable network is segmented into smaller service areas in which
fewer amplifiers are cascaded after each optical node-typically five or fewer. The
tree-and-branch network architecture for HFC can be a fiber backbone, cable area
network, superdistribution, fiber to the feeder, or a ring.
Downstream: An RF signal transmission (TV channels, data) from source (headend) to
the destination (subscribers). Downstream is also called a forward path.
Upstream: An RF signal transmission opposite to downstream-from subscribers to the
headend. Upstream is also called a return or reverse path.
Delivering services over a cable network requires different RF frequencies-the outgoing
frequencies are in the 50-to-860 MHz range, the incoming are in the 5-to-42 MHz range.
To deliver data services over a cable network TV channels which usually operate at 6
MHz range for the downstream, and 6 MHz or less (for asymmetric cable connections)
for upstream traffic from the corresponding frequency range are usually used.
QUESTION NO: 2
Many small certifyme.combranch offices use broadband cable for data connection
access. Which three modulation signaling standards are used in broadband cable
technology? (Select three)
A. S-Video
B. NTSC
C. SECAM
D. PAL
E. FEC
F. FDM
G. MLP
Answer: B, C, D
Explanation:
Broadband: Data transmission where multiple pieces of data are sent simultaneously to
increase the effective rate of transmission. In cable systems, the term broadband refers to
the frequency-division multiplexing (FDM) of many signals in a wide radio frequency
(RF) bandwidth over an HFC network, and the capability to handle vast amounts of
information.
NTSC is a North American TV technical standard for analog TV systems. The standard
was created in 1941 and is named after the National Television System Committee
formed in 1940. The standard uses a 6-MHz modulated signal. PAL is a color encoding
system used in broadcast television systems in most of Europe, Asia, Africa, Australia,
Brazil, and Argentina, and uses a 6-MHz, 7-MHz, or 8-MHz modulated signal. The color
difference signals an alternate phase at the horizontal line rate. SECAM is an analog
color TV system used in France and certain Eastern European countries that uses an
8-MHz modulated signal.
Some of the smaller certifyme.comlocations use HFC cable to connect to the certifyme.com
WAN. Which two statements are true about broadband cable (HFC) systems?
(Select two)
A. Cable modems operate at Layers 1, 2, and 3 of the OSI model.
B. Cable modems operate at Layers 1 and 2 of the OSI model.
C. A function of the cable modem termination system is to convert the digital data stream
from the end user host into a modulated RF signal for transmission onto the cable system.
D. Cable modems only operate at Layer 1 of the OSI model.
E. A function of the cable modem termination system (CMTS) is to convert the
modulated signal from the cable modem into a digital signal.
Answer: B, E
Explanation:
Hybrid fiber-coaxial (HFC): A mixed optical-coaxial network in which optical fiber
replaces some or all of the traditional trunk portion of the cable network.
The HFC architecture is the evolution of an initial cable system and signifies a network
that incorporates both optical fiber along with coaxial cable to create a broadband
network. By upgrading a cable plant to an HFC architecture, you can deploy a data
network over an HFC system to offer high-speed Internet services and you can serve
more subscribers. The cable network is segmented into smaller service areas in which
fewer amplifiers are cascaded after each optical node-typically five or fewer. The
tree-and-branch network architecture for HFC can be a fiber backbone, cable area
network, superdistribution, fiber to the feeder, or a ring.
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Questions and Answers : 310 Q&As
Updated: 2008-09-02
Market Price: $129.99
Member Price: $89.99
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Pass4sure > Cisco > CCNP > Exam 642-825
ISCW – Implementing Secure Converged Wide Area Networks : 642-825 Exam
Pass4sure 642-825 Exam Questions
* Updated: November 1st , 2008
* Price: $129.99$115.98
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Product Description
Exam Number/Code: 642-825
Exam Name: 642-825 Value Pack
Our technical expert highly recommend that you buy this “642-825 Q&A+Preparation Labs” value pack. In order that candidates will better grasp the CCNP knowledge, our technical experts outline the examination topics and compile a set of CCNP Preparation Labs, which not only covers all the main and important CCNP knowledge, but also adds some sample questions and analysis of related certification. After you master all the labs, and learn of 642-825 Q&A, you will surely have a thorough understanding of 642-825 knowledge. Value pack is surely the best choice for you to pass 642-825 with high scores.
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ISCW – Implementing Secure Converged Wide Area Networks
“ISCW – Implementing Secure Converged Wide Area Networks”, also known as 642-825 exam, is a Cisco certification.With the complete collection of questions and answers, Pass4sure has assembled to take you through 310 Q&As to your 642-825 Exam preparation. In the 642-825 exam resources, you will cover every field and category in CCNP helping to ready you for your successful Cisco Certification.
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Feedbacks
* ”
I just came back from the exam with a score of 950 3 hours ago.
I got PPPOE simulation, 2 SDM similar in P4S, and also question 218 – 222 in P4S where it’s about site-to-site VPN which I’m curse myself for being panicked for a while( I believe i got ony 1 correct out of 5 Q). It all started before the exam when CISCO give big sign of warning that your result will be pending for their so called analysis. They also conduct online survey asking how long it takes for you to study for the exam and also mode of training which means by self study or working experience. I choose working experience instead since i’m afraid if I got high score, analysis will reveal it is impossible for candidates to pass the exam by working experience only.
”
* — Gloria (Oct, 9 2008)
* ”
I just passed it with a preliminary score of 1000. I spent 1 hour and 15 minutes.
I had the Following:
Simulator:
1. AAA Simulator, with some issues with # and login on the router, however latest config on this is correct, so don’t worry if you are not able to login on the router to verify it, as me..
Simlet:
1. 2 x SDM Simlet
2. HQ – Branch (1 – 5) VPN Tunnel, I don’t thought there were all 5 questions, however the process it the same for all of them…
3. 1x Multi Site VPN SDM
Drag & Drops:
2-3 from P4S
– PPPOE configuration of physical interface
– Hybrid-coaxial architecture, the one with Local headend, cable modem termination system, cable modem sections
– AH-ESP-IKE
Cheers
”
* — Thoms (Oct, 9 2008)
* ”
ISCW passed in the second attempt, CCNP done.
75 Questions 989/1000 (One question wrong)
1 question out of p4s
My GRE tunnel simlet was a little bit else.
one branch office router had wrong AS number 11 instead of 1
one branch office router had missing default route
the HQ router had a non correct tunnel source to one branch
HQ router had non correct tunnel destination IP for one branch office router configured
one branch office router had non correct mask for the EIGRP subnet configured
can’t remember the orde, but this doesn’t matter.
As somebody already said: Just check all the possible answers with the “show run”, “show ip int brief”, …
Thanks to all for the help!
”
* — Joe (Oct, 8 2008)
ok
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