Cisco 100-101 ICND1 VCE Braindumps

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100-101 ICND1
Interconnecting Cisco Networking Devices Part 1
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100-101 ICND1 Exam Information
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Cisco Training Certifications
Specialists
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Cisco 100-101 (ICND1) Exam Training
Course Description
Please note this course is the 1st part to
gaining full CCNA certification, part two of this
exam training, Cisco 100-101, (ICND2), is
available here with 9 Chapters.
Chapter 1 Understanding Networks and their
Building Blocks Chapter 2 IP Addressing and
Subnets Chapter 3 Introduction to Cisco Routers,
Switches and IOS Chapter 4 Introduction to IP
Routing Chapter 5 Introduction to OSPF Chapter 6
Switching and Spanning Tree Protocol Chapter 7
VLANs and VTP Chapter 8 Access Lists Chapter 9
Network Address Translation (NAT)
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About This Course
This Cisco 100-101 (ICND1) training course from
Infinite Skills prepares you for the
Interconnecting Cisco Networking Devices Part 1
exam. The ICND1 exam gives you your CCENT (Cisco
Certified Entry Networking Technician)
certification, and is a required exam for
achieving your full CCNA Routing and Switching
certification. This tutorial covers the topics
recommended by Cisco for the 100-101 (ICND1)
exam. The Cisco 100-101 exam tests your
knowledge of the network fundamentals required to
install, operate, and troubleshoot a small branch
office network. This video tutorial covers all of
the recommended topics for this exam operation
of IP data networks, LAN switching technologies,
IPv4 and IPv6, Routing Technologies, DHCP, NAT
and ACLs, network device security and basic
troubleshooting. Once you have completed this
computer based video training course, you will
have a thorough understanding of the concepts you
need for passing the Cisco 100-101 (ICND1) exam.
You will also be able to apply these concepts to
building and managing a real-life client network.
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How to take the Cisco 100-101 (ICND1) Exam
1. Find a test center near you (http//www.vue.com
/cisco/) to take the Cisco 100-101 (ICND1)
certification exam, their will provide details on
test center locations and schedules. This exam is
typically priced around 150 dollars. 2. Study
the required material to pass the Cisco 100-101
(ICND1) examination. This course covers the
material that is within the Cisco 100-101 (ICND1)
certification exam, and will help put you in a
great position to succeed in the exam 3. Pass
your exam! 4. Tell your friends how easy
passing the Cisco 100-101 (ICND1) exam was using
Infinite Skills training courses
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What are the Requirements?

• What are the requirements?
• A Desire To Learn
• What am I going to get from this course?
• Over 76 lectures and 6.5 hours of content!
• Prepare Yourself For The Cisco Networking Devices
  Part 1 Exam
• What is the target audience?
• Any One Who Wishes To Become CCNA Certified
• What you get with this course?

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Introduction to Networks (1)
Before you learn Cisco Internet working, it is
important to understand what a network is and the
importance of networks themselves. Simply put, a
network is a collection of interconnected devices
(such as computers, printers, etc.). To
understand the importance of networks, let us
look at how things worked before networks were
created. For this, consider a large multinational
company that sells food products in a time when
networks did not exist. Let us call this company
ABC Inc. Imagine the amount of information such
as sales, inventory, etc. required by the
management of the company to make everyday
decisions. To get this information they will need
to call their local offices. Their local offices
will need to mail (postal!) or fax printed
reports or even send media (floppies!) though the
postal service. By the time the mail is received,
the data is already days old. Even if reports are
faxed, it will be a cumbersome task to
consolidate all reports. This task also increases
chance of human error since large numbers of
reports are manually collated. This is just one
part of the equation. You also need to consider
the information required by the local offices.
They also need various data from the head office
and other offices around the world.
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Introduction to Networks (2)
Now consider the same company, but in the present
time with all their offices interconnected. They
would use a single application around the world
that takes advantage of their global network. The
data from all offices would be instantly stored
at the central location and with a single click,
the management team can see data from around the
world in any format they like. This data would
also be real-time. This means that they see it as
its happening. Since the data is centralized, any
office location can see data pertaining to any
location. As you can see, the cost, time and
effort involved in transferring data was much
higher without networks. So networks decrease
cost, time, and effort and thereby increase
productivity. They also help in resource
optimization by helping to share resources. A
simple example of resource sharing is a printer
in a typical office. Without networks, each
computer would require a dedicated printer.
However with a network, the printer can be shared
between many different computers. Now that you
know how beneficial networks are, its time to
look at how networks work. Figure 1-1 shows the
most basic form of a network. This figure shows
two hosts (end-user devices such as computers are
commonly called hosts in networking terms)
directly connected to each other using a
networking cable. Today every host has a Network
Interface Card (NIC) that is used to connect it
to a network.
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Introduction to Networks (3)
One end of the network cable connects to the NIC
on a host and the other connects to the network.
In this case, the cable directly connects to
another host. At this stage do not worry about
network cables and how the hosts communicate
across the network. This will be covered in
detail later in the chapter. At this stage it is
important to understand how hosts connect to a
network. In Figure 1-1, the hosts are
networked and can share information. This
network is effective, but not scalable. If you
have more than 2 hosts to this network, it will
not work without a separate NIC card for each
connection and that is not scalable or realistic.
For more than 2 hosts to be networked, you
require a network device such as a hub. Figure
1-2 shows three hosts connected to a hub.
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Introduction to Networks (4)
A hub is a network device that repeats
information received from a host to all other
connects hosts. In Figure 1-2 the hub will relay
any information received from HostA to HostB and
HostC. This means that all the three hosts can
communicate with each other. Communication
between hosts can be classified into three
types Unicast Communication from one host to
another host only. Broadcast Communication from
one host to all the hosts in the
network. Multicast Communication from one host
to few hosts only. When a hub is used to network
hosts, there are two problems that arise A hub
repeats information received from one host to all
the other hosts. To understand this, consider
HostA in Figure 1-2 sending a unicast message to
HostB. When the hub receives this message it
will relay the message to both HostB and HostC.
Even though the message was a unicast intended
only for HostB, HostC also receives it. It is up
to HostC to read the message and discard it after
seeing that the message was not intended for
it. A hub creates a shared network medium where
only a single host can send packets at a time. If
another host attempts to send packets at the same
time, a collision will occur. Then each device
will need to resend their packets and hope not to
have a collision again. This shared network
medium is called a single collision domain.
Imagine the impact of having a single collision
domain where 50 or 100 hosts are connected to
hubs that are interconnected and they are all
trying to send data. That is just a recipe for
many collisions and an inefficient network. The
problems associated with hubs can cause severe
degradation of a network. To overcome these,
switches are used instead of hubs. Like hubs,
switches are used to connect hosts in a network
but switches break up collision domain by
providing a single collision domain for every
port. This means that every host (one host
connects to one port on the switch) gets its own
collision domain thereby eliminating the
collisions in the network. With switches, each
host can transmit data anytime. Switches simply
switch the data from one port to another in the
switched network. Also, unlike hubs, switches do
not flood every packet out all ports. They switch
a unicast packet to the port where the
destination host resides. They only flood out a
broadcast packet. Figure 1-3 shows a switched
network.
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Introduction to Networks (5)
Remember that each host in Figure 1-3 is in its
own collision domain and if HostA sends a packet
to HostC, HostB will not receive it. Figure 1-4
and 1-5 show two networks. See if you can figure
out how many collision domains exist in them.
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Introduction to Networks (6)
If you answered 5 for Figure 1-4, then you are
absolutely correct since each port of the
Switches represent a single collision domain. If
you answered more than 5 then you need to
remember that a hub does not break collision
domains. Similarly, Figure 1-5 has 7 collision
domains. Now that you know how a switch works
and improves a network, consider the one problem
associated with a switched network. Earlier, you
learned that hubs flood out all packets, even the
unicast ones. A switch does not flood out unicast
packets but it does flood out a broadcast packet.
All hosts connected to a switched network are
said to be in the same broadcast domain. All
hosts connected to it will receive any broadcast
sent out in this domain. While broadcasts are
useful and essential for network operations, in a
large switched network too many broadcasts will
slow down the network. To remedy this situation,
networks are broken into smaller sizes and these
separate networks are interconnected using
routers. Routers do not allow broadcasts to be
transmitted across different networks it
interconnects and hence effectively breaks up a
broadcast domain. Figure 1-6 shows three switched
networks interconnected by a router.
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Introduction to Networks (7)

• In the network shown in Figure 1-6, broadcasts
  from hosts connected to Switch1 will not reach
  hosts connected to Switch2 or Switch3. This is
  because the router will drop the broadcast on its
  receiving interface.
• In addition to breaking up broadcast domains,
  routers also perform the following four essential
  functions in your network
• Packet Switching At the barest minimum, routers
  are like switches because they essentially switch
  packets between networks.
• Communication between Networks As shown in
  Figure 1-6, routers allow communication between
  networks connected to it.
• Path Selection Routers can talk to each other
  to learn about all the networks connected to
  various routers and then select the best path to
  reach a network. This is function is discussed in
  detail later in the book.
• Packet Filtering Routers can drop or forward
  packets based on certain criteria like their
  source and destination. This is also discussed in
  detail later in the book.

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Routing and Switching
Cisco Certified Entry Networking Technician
(CCENT) validates the ability to install, operate
and troubleshoot a small enterprise branch
network, including basic network security. With a
CCENT, a network professional demonstrates the
skills required for entry-level network support
positions - the starting point for many
successful careers in networking. The curriculum
covers networking fundamentals, WAN technologies,
basic security and wireless concepts, routing and
switching fundamentals, and configuring simple
networks. CCENT is the first step toward
achieving CCNA, which covers medium-size
enterprise branch networks with more complex
connections.
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CCENT Exams Recommended Training
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Topic break down

• Individuals who get formal training on Cisco
  technologies demonstrate higher productivity,
  make fewer errors and possess more of the skills
  valued by employers and customers than those who
  receive only on-the-job training.
• Individuals who get formal Cisco training will
• Improve speed, depth and quality of all customer
  interactions
• Learn to manage Cisco networks through labs
• Experience real-life scenarios during their Cisco
  training
• Gain the knowledge to build an effective
  workforce through network utilization

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Cisco 100-101 Practice Test
Topic 1, Operation of IP Data Networks
Question No 1 - (Topic 1)
Which OSI layer header contains the address of a
destination host that is on another network? A.
application B. session C. transport D. network E.
data link F. physical
Answer
network
Explanation Explanation/Reference
Only network address contains this information.
To transmit the packets the sender uses network
address and datalink address. But the layer 2
address represents just the address of the next
hop device on the way to the sender. It is
changed on each hop. Network address remains the
same.
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Cisco 100-101 Practice Test
Question No 2 - (Topic 1)
DRAG DROP
Answer
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Cisco 100-101 Practice Test
Topic 2, LAN Switching Technologies
Question No 3 - (Topic 2)
A switch has 48 ports and 4 VLANs. How many
collision and broadcast domains exist on the
switch (collision, broadcast)? A. 4, 48 B. 48,
4 C. 48, 1 D. 1, 48 E. 4, 1
Answer
48, 4
Explanation A switch uses a separate collision
domain for each port, and each VLAN is a separate
broadcast domain.
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Cisco 100-101 Practice Test
Question No 4 - (Topic 2)
Refer to the exhibit.
All devices attached to the network are shown.
How many collision domains are present in this
network? A. 2 B. 3 C. 6 D. 9 E. 15
Answer 15
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Cisco 100-101 Practice Test
Topic 3, IP addressing (IPv4 / IPv6)
Question No 5 - (Topic 3)
Which one of the following IP addresses is the
last valid host in the subnet using mask
255.255.255.224? A. 192.168.2.63 B.
192.168.2.62 C. 192.168.2.61 D. 192.168.2.60 E.
192.168.2.32
Answer
192.168.2.62
Explanation Explanation/Reference
With the 224 there are 8 networks with increments
of 32 One of these is 32 33 62 63 where 63 is
broadcast so 62 is last valid host out of given
choices.
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Cisco 100-101 Practice Test
Topic 4, IP Routing Technologies
Question No 6 - (Topic 4)
Refer to the exhibit.
Which command would you use to configure a static
route on Router1 to network 192.168.202.0/24 with
a nondefault administrative distance? A.
router1(config)ip route 1 192.168.201.1
255.255.255.0 192.168.201.2 B. router1(config)ip
route 192.168.202.0 255.255.255.0 192.168.201.2
1 C. router1(config)ip route 5 192.168.202.0
255.255.255.0 192.168.201.2 D. router1(config)ip
route 192.168.202.0 255.255.255.0 192.168.201.2 5
router1(config)ip route 192.168.202.0
255.255.255.0 192.168.201.2 5
Answer
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Cisco 100-101 Practice Test
Topic 5, IP Services
Question No 7 - (Topic 5)
DRAG DROP
Answer
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Cisco 100-101 Practice Test
Topic 7, Troubleshooting
Question No 8 - (Topic 7)
Refer to the exhibit.
A person is trying to send a file from a host on
Network A of the JAX Company to a server on
Network Z of the XYZ Company. The file transfer
fails. The host on Network A cancommunicate with
other hosts on Network A. Which command, issued
from router RTA, would be the most useful for
troubleshooting this problem? A. show flash B.
show history C. show version D. show
interfaces E. show controllers serial
Answer
show interfaces
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Cisco 100-101 Practice Test
Topic 8, OSPF Questions
Question No 9 - (Topic 8)
Refer to the graphic.
R1 is unable to establish an OSPF neighbor
relationship with R3. What are possible reasons
for this problem? (Choose two.) A. All of the
routers need to be configured for backbone Area
1. B. R1 and R2 are the DR and BDR, so OSPF will
not establish neighbor adjacency with R3. C. A
static route has been configured from R1 to R3
and prevents the neighbor adjacency from being
established. D. The hello and dead interval
timers are not set to the same values on R1 and
R3. E. EIGRP is also configured on these routers
with a lower administrative distance. F. R1 and
R3 are configured in different areas.
Answer
The hello and dead interval timers are not set to
the same values on R1 and R3. R1 and R3 are
configured in different areas.
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Cisco 100-101 Practice Test
Question No 10 - (Topic 8)
Scenario Refer to the topology. Your company has
decided to connect the main office with three
other remote branch offices using point-to-point
serial links. You are required to troubleshoot
and resolve OSPF neighbor adjacency issues
between the main office and the routers located
in the remote branch offices.
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Cisco 100-101 Practice Test
Question No 10 - (Topic 8)
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Cisco 100-101 Practice Test
Question No 10 - (Topic 8)
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Cisco 100-101 Practice Test
Question No 10 - (Topic 8)
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Cisco 100-101 Practice Test
Question No 10 - (Topic 8)
R1 does not form an OSPF neighbor adjacency with
R2. Which option would fix the issue? A. R1
ethernetO/1 is shutdown. Configure no shutdown
command. B. R1 ethernetO/1 configured with a
non-default OSPF hello interval of 25 configure
no ip ospf hello-interval 25 C. R2 ethernetO/1
and R3 ethernetO/O are configured with a
non-default OSPF hello interval of 25 configure
no ip ospf hello-interval 25 D. Enable OSPF for
R1 ethernetO/1 configure ip ospf 1 area 0
command under ethernetO/1
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Cisco 100-101 Practice Test
Question No 10 - (Topic 8)
Answer
R1 ethernetO/1 configured with a non-default OSPF
hello interval of 25 configure no ip ospf
hello-interval 25
Explanation Looking at the configuration of R1,
we see that R1 is configured with a hello
interval of 25 on interface Ethernet 0/1 while R2
is left with the default of 10 (not configured).
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