200-125 Premium Bundle
- Premium File 1228 Questions & Answers
- Last Update: Nov 22, 2019
- Training Course 150 Lectures
- Study Guide 1610 Pages
File name |
Views |
Size |
Downloads |
|
---|---|---|---|---|
3094 |
23.8 MB |
4350 |
||
4193 |
22.9 MB |
5258 |
||
1495 |
20 MB |
2686 |
||
2050 |
25.2 MB |
2683 |
||
4980 |
21.5 MB |
6191 |
||
1131 |
21.6 MB |
2903 |
||
1052 |
24.2 MB |
3392 |
Where does routing occur within the DoD TCP/IP reference model?
Explanation:
The picture below shows the comparison between TCP/IP model & OSI model. Notice that
the Internet Layer of TCP/IP is equivalent to the Network Layer which is responsible for
routing decision.
Which of the following statements describe the network shown in the graphic? (Choose
two.)
Explanation:
Only router can break up broadcast domains so in the exhibit there are 2 broadcast
domains: from e0 interface to the left is a broadcast domain and from e1 interface to the
right is another broadcast domain ->.
Both router and switch can break up collision domains so there is only 1 collision domain
on the left of the router (because hub doesnt break up collision domain) and there are 6
collision domains on the right of the router (1 collision domain from e1 interface to the
switch + 5 collision domains for 5 PCs in Production) ->.
A network interface port has collision detection and carrier sensing enabled on a shared
twisted pair network. From this statement, what is known about the network interface port?
Explanation:
Modern Ethernet networks built with switches and full-duplex connections no longer utilize
CSMA/CD. CSMA/CD is only used in obsolete shared media Ethernet (which uses repeater
or hub).
Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down.
Which of the following are true? (Choose two.)
Explanation:
Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down. Router
C will send ICMP packets to inform Host 1 that Host 2 cannot be reached.
Refer to the exhibit.
Based on the information given, which switch will be elected root bridge and why?
Explanation:
To elect the root bridge in the LAN, first check the priority value. The switch having the
lowest priority will win the election process. If Priority Value is the same then it checks the
MAC Address; the switch having the lowest MAC Address will become the root bridge. In
this case, switch C has the lowest MAC Address so it becomes the root bridge.
Which layer in the OSI reference model is responsible for determining the availability of the
receiving program and checking to see if enough resources exist for that communication?
Explanation:
This question is to examine the OSI reference model.
The Application layer is responsible for identifying and establishing the availability of the
intended communication partner and determining whether sufficient resources for the
intended communication exist.
Refer to the graphic.
Host A is communicating with the server. What will be the source MAC address of the
frames received by Host A from the server?
Explanation:
Whereas switches can only examine and forward packets based on the contents of the
MAC header, routers can look further into the packet to discover the network for which a
packet is destined. Routers make forwarding decisions based on the packet's network-
layer header (such as an IPX header or IP header). These network-layer headers contain
source and destination network addresses. Local devices address packets to the router's
MAC address in the MAC header. After receiving the packets, the router must perform the
following steps:
1. Check the incoming packet for corruption, and remove the MAC header. The router
checks the packet for MAC-layer errors. The router then strips off the MAC header and
examines the network-layer header to determine what to do with the packet.
2. Examine the age of the packet. The router must ensure that the packet has not come too
far to be forwarded. For example, IPX headers contain a hop count. By default, 15 hops is
the maximum number of hops (or routers) that a packet can cross. If a packet has a hop
count of 15, the router discards the packet. IP headers contain a Time to Live (TTL) value.
Unlike the IPX hop count, which increments as the packet is forwarded through each
router, the IP TTL value decrements as the IP packet is forwarded through each router. If
an IP packet has a TTL value of 1, the router discards the packet. A router cannot
decrement the TTL value to 1 and then forward the packet.
3. Determine the route to the destination. Routers maintain a routing table that lists
available networks, the direction to the desired network (the outgoing interface number),
and the distance to those networks. After determining which direction to forward the packet,
the router must build a new header. (If you want to read the IP routing tables on a Windows
95/98 workstation, type ROUTE PRINT in the DOS box.)
4. Build the new MAC header and forward the packet. Finally, the router builds a new MAC
header for the packet. The MA
A router has two Fast Ethernet interfaces and needs to connect to four VLANs in the local
network. How can you accomplish this task, using the fewest physical interfaces and
without decreasing network performance?
Explanation:
A router on a stick allows you to use sub-interfaces to create multiple logical networks on a
single physical interface.
Match the terms on the left with the appropriate OSI layer on the right. (Not all options are
used.)
A network administrator is verifying the configuration of a newly installed host by
establishing an FTP connection to a remote server. What is the highest layer of the
protocol stack that the network administrator is using for this operation?
Explanation:
FTP belongs to Application layer and it is also the highest layer of the OSI model.
Refer to the exhibit. Complete this network diagram by dragging the correct device name or
description to the correct location. Not all the names or descriptions will be used.
A receiving host computes the checksum on a frame and determines that the frame is
damaged. The frame is then discarded. At which OSI layer did this happen?
Explanation:
The Data Link layer provides the physical transmission of the data and handles error
notification, network topology, and flow control. The Data Link layer formats the message
into pieces, each called a data frame, and adds a customized header containing the
hardware destination and source address. Protocols Data Unit (PDU) on Datalink layer is
called frame. According to this question the frame is damaged and discarded which will
happen at the Data Link layer.
Which of the following correctly describe steps in the OSI data encapsulation process?
(Choose two.)
Explanation:
The transport layer segments data into smaller pieces for transport. Each segment is
assigned a sequence number, so that the receiving device can reassemble the data on
arrival.
The transport layer also use flow control to maximize the transfer rate while minimizing the
requirements to retransmit. For example, in TCP, basic flow control is implemented by
acknowledgment by the receiver of the receipt of data; the sender waits for this
acknowledgment before sending the next part.
The Network layer (Layer 3) has two key responsibilities. First, this layer controls the logical
addressing of devices. Second, the network layer determines the best path to a particular
destination network, and routes the data appropriately.
Refer to exhibit:
Which two destination addresses will be used by Host A to send data to Host C? (Choose
two.)
Explanation:
While transferring data through many different networks, the source and destination IP
addresses are not changed. Only the source and destination MAC addresses are changed.
So in this case Host A will use the IP address of Host C and the MAC address of E0
interface to send data. When the router receives this data, it replaces the source MAC
address with its own E1 interfaces MAC address and replaces the destination MAC
address with Host Cs MAC address before sending to Host C.
What is the difference between a CSU/DSU and a modem?
Explanation:
CSU/DSU is used to convert digital signals from a router to a network circuit such as a T1,
while a modem is used to convert digital signals over a regular POTS line.
or Guarantee your success by buying the full version which covers the full latest pool of questions. (1228 Questions, Last Updated on Nov 22, 2019)
Please fill out your email address below in order to Download VCE files or view Training Courses.
Please check your mailbox for a message from [email protected] and follow the directions.
Comments for Question #1 - Topic 1 (50)
August 15, 2018, 02:25 PM
B. Internet. Model TCP/IP
August 9, 2018, 09:32 AM
b internet layer
July 23, 2018, 05:05 AM
Is is B.internet
June 7, 2018, 08:23 AM
B is the answer
May 23, 2018, 12:40 PM
b
May 12, 2018, 04:35 AM
B. Internet Layer
October 27, 2017, 12:17 PM
b
October 27, 2017, 12:17 PM
internet
October 24, 2017, 06:09 AM
B INTERNET it my ansser ok
October 16, 2017, 03:54 PM
b
September 15, 2017, 06:40 PM
C. Internet Layer
September 7, 2017, 10:13 PM
internet
September 2, 2017, 06:19 AM
B internet layer
August 31, 2017, 02:39 PM
have the questions changed?because many people are failing
August 31, 2017, 06:41 AM
C Network Layer
August 30, 2017, 09:32 PM
internet corresponds to the Network layer in the OSI Model
August 30, 2017, 07:37 AM
Internet layer
August 29, 2017, 02:18 PM
A. application
August 29, 2017, 10:17 AM
internet layer of tcp/ip is equivalent to network layer of the OSI model
August 21, 2017, 04:16 AM
in my point of view the answer is D
August 16, 2017, 05:12 PM
In fact, Routing takes place in "Network Layer" in OSI Reference Model which is "Internet Layer' in DoD TCP/IP Reference Model.
August 15, 2017, 01:34 AM
Answer should be B
August 11, 2017, 10:37 PM
This exact question was on my test
August 9, 2017, 07:40 PM
C- network layer
August 6, 2017, 01:39 PM
b- internet TCP/IP model before OSI model
August 2, 2017, 11:55 AM
I want to know where does routing occurs whitin the DoD OSI reference model
August 2, 2017, 11:45 AM
B. Internet layer
July 31, 2017, 12:37 AM
B internet layer
July 25, 2017, 11:20 AM
Occur on C. network
July 17, 2017, 12:27 PM
B Network Layer
July 16, 2017, 05:01 PM
The answer is B Reason: This question is asking about the TCP/IP model, not the OSI model. OSI is Network, TCP/IP calls it Internet.
July 15, 2017, 01:04 AM
B Internet layer within the TCP/IP model.
July 5, 2017, 06:20 PM
internet layer
July 4, 2017, 05:07 AM
B. Internet layer
July 3, 2017, 12:39 AM
B Internet is equal to network layer at OSI where routing occurs
June 29, 2017, 06:19 PM
B internet layer
June 29, 2017, 07:04 AM
the answer is b
June 28, 2017, 09:56 AM
C internet layer
June 26, 2017, 07:42 PM
B - Internet layer in TCP MODEL
June 23, 2017, 11:31 AM
B is the right answer
June 19, 2017, 11:43 PM
B. internet
June 7, 2017, 04:52 PM
internet layer
June 2, 2017, 11:55 AM
B internet layer
May 31, 2017, 11:36 AM
C. network layer
May 13, 2017, 09:23 PM
occur in the Internet layer
May 13, 2017, 09:21 PM
The routing occur in the Internet layer.
May 13, 2017, 09:19 PM
Na camada de internet, no qual equivale a camada de rede do modelo OSI onde os pacotes são enviados para a rede.
May 11, 2017, 02:02 PM
Internet Layer of TCP/IP is equivalent to the Network Layer which is responsible for routing decision.
May 4, 2017, 09:41 PM
In the TCP/IP model the routing occur in the Internet layer
May 2, 2017, 01:17 AM
C Network layer