A router determines the path to deliver a
packet. What layer of the OSI model does this fact
represent?
session
transport
network
data link
physical
2
Refer to the exhibit. A network administrator
has configured a network after subnetting the network number
192.168.0.0/28. Workstation 1 is not able to communicate with
Workstation 2. What is the cause of this loss in
communications?
Workstation 1 and Workstation
2 are on the same subnet.
The serial connections are
using addresses from the LAN subnets.
Workstation 1 is not on the
same network that the Router 1 LAN interface is on.
If routers are used in the
network, IP addresses do not need to be
subnetted.
3
Which physical network topology is easy to
monitor and troubleshoot, easy to add new devices to as the
network expands, but subject to complete failure when a
central hub or switch ceases to work?
bus
star
ring
mesh
4
Refer
to the exhibit. Host A pings Host B. What can be concluded
about the source and destination addresses contained in the
communication sent by Router R5 when it forwards the ping out
the Ethernet interface to Host B? (Choose two.)
source IP address:
192.168.10.129
source MAC address:
BBBB.3333.5677
source MAC address:
5555.AAAA.6666
destination IP address:
192.168.10.33
destination IP address:
192.168.10.134
destination MAC address:
9999.DADC.1234
5
Which network device creates the highest amount
of latency?
hub
router
switch
bridge
6
Refer
to the exhibit. What must be configured on Host B to allow it
to communicate with the file server? (Choose three.)
the MAC address of the file
server
the MAC address of the PADI
router interface connected to Switch A
the IP address of Switch
A
a unique host IP
address
the subnet mask for the
LAN
the default gateway
address
7
A computer technician is asked to make a network
cable. One end of the cable is pinned as a 568A and the other
as a 568B. For what purposes can this cable be used? (Choose
two.)
to connect a router to a
switch
to connect a switch to a
switch
to connect a host to a
switch
to connect a hub to a
switch
to connect a router to a
hub
to connect a host to a
hub
8
When using Category 5 UTP cable, which RJ-45 pin
pairs are used to exchange data between hosts on an Ethernet
network?
1 and 2; 4 and 5
1 and 2; 3 and 6
3 and 6; 7 and 8
4 and 5; 7 and
8
9
What is the correct number of usable subnetworks
and hosts for the IP network address 192.168.35.0 subnetted
with a /28 mask?
6 networks / 64 hosts
14 networks / 32 hosts
14 networks / 14 hosts
30 networks / 64
hosts
10
Which devices will create multiple collision
domains in an Ethernet network? (Choose two.)
NIC
hub
switch
router
repeater
11
What is the decimal representation of the binary
number 11111000?
224
240
248
252
254
12
Which characteristics are common to both UDP and
TCP? (Choose two.)
provides windowing
provides reliability
uses port numbers
acknowledges receipt of
data
classified as a
connectionless protocol
classified as a transport
layer protocol
13
The ping command can be used to test
connectivity between hosts. Which OSI model layers are
verified by this test?
Layers 1 and 2 only
Layers 1 and 3 only
Layers 1, 2 and 3
Layer 1 through Layer 7
Layer 4 through Layer
7
14
Why do vendors utilize the OSI model when
designing networking products?
It places requirements on all
vendors that develop proprietary networking technologies for
advance networking systems.
It ensures greater
compatibility and interoperability with equipment from
different vendors.
The International
Organization for Standards develops all new products to be
incorporated into the product.
It is mandated by the
International Organization for Standardization that network
products be compliant with the OSI
model.
15
An Ethernet host receives a frame, calculates
the FCS, and compares the calculated FCS to the FCS received
in the frame. The host finds that the two FCS values do not
match. What action will be taken by the host?
The host discards the
frame.
The host processes the data
frame normally.
The host initiates a request
for retransmission of the frame.
The host sends the frame
content to an upper layer protocol for error
recovery.
16
Why would a company install a switch instead of
a hub when building or expanding a corporate network?
A switch manages frames
faster than a hub does.
A switch operates at 100
Mbps. A hub operates at a maximum of 10 Mbps.
A switch modifies the
Ethernet frame to remove any errors. A hub forwards the frame
exactly as it arrived.
A switch provides more
bandwidth by sending frames only out the port to which the
destination device is attached. A hub sends the frame out all
ports except the source port.
17
Refer
to the exhibit. What is the order of the TCP/IP Protocol Data
Units as data is moved as indicated through the OSI
model?
bits, segments, frames,
packets, data
bits, frames, packets,
segments, data
bits, frames, segments,
packets, data
bits, packets, frames,
segments, data
18
After an unsuccessful ping to the local router,
the technician decides to investigate the router. The
technician observes that the lights and fan on the router are
not operational. In which layer of the OSI model is the
problem most likely occurring?
transport
network
data link
physical
19
Which of the following statements are correct
about CSMA/CD? (Choose three.)
It is a media access method
used in LANs.
It is a media access method
used in FDDI WANs.
When a device needs to
transmit, it checks to see if the media is available.
A device sends data without
checking media availability because all devices have equal
access.
Multiple devices can
successfully transmit simultaneously.
Only one device can
successfully transmit at a
time.
20
A network administrator has installed a 24 port
switch and connected 10 computers with 10/100 NICs. If the
NICs are operating at 100 Mbps, how much bandwidth is
available for each computer to receive data?
0.24 Mbps
4.17 Mbps
10 Mbps
24 Mbps
100 Mbps
200
Mbps
21
Refer
to the exhibit. A newly hired technician has a task of
terminating CAT 5 UTP cables. The network administrator
visually examined the cables the technician terminated. Some
of the cables have connectors as shown in the exhibit. What
should the network administrator explain to the technician
about the cables?
Both cables are
acceptable.
The cable in Graphic A will
produce more crosstalk.
The cable in Graphic A should
be used in the more critical network segments.
The cable in Graphic A is
preferred because it will be easier to crimp the
connector.
22
Which technologies are considered to be LAN
technologies? (Choose two.)
DSL
Token Ring
Frame Relay
ISDN
Ethernet
23
Refer
to the exhibit. The connections in the exhibit are labeled A
through E. Which of these indicate LAN links? (Choose
two.)
link A
link B
link C
link D
link
E
24
Consider
the networks shown in the exhibit. Host A is sending packets
to host B. Which layer of the OSI model is being used when the
router is making the calculated decision to determine which
interface to send the packet out?
physical
data link
network
transport
session
presentation
25
What are important characteristics to consider
when purchasing a network interface card? (Choose two.)
security used on the
network
media used on the
network
system bus used on the
computer
software installed on the
network
diagnostic tools installed on
the network
26
Refer
to the exhibit. Which diagram represents the network topology
that an administrator would prefer, and why would the
administrator prefer it?
Diagram A. It provides the
hosts with full-duplex connections.
Diagram A. It will better
provide available bandwidth to the hosts.
Diagram B. It extends the
collision domain.
Diagram B. It prevents the
frames from looping.
Either network will perform
equally well.
27
Refer
to the exhibit. The physical documentation shows a portion of
the internetwork of the ABC Company. Which segments will be
free of collisions?
segments 1 and 2
segments 1, 2, and 3
segments 1, 2, 3, 4, and
5
segments 2 and 3
segments 3, 4, and 5
segments 4, and
5
28
Refer
to the exhibit. The network administrator wants to create a
subnet for the point-to-point connection between the two
routers. Which subnetwork mask would provide enough addresses
for the point-to-point link with the least number of wasted
addresses?
255.255.255.192
255.255.255.224
255.255.255.240
255.255.255.248
255.255.255.252
29
Refer
to the exhibit. What kind of Ethernet cable is
represented?
rollover cable
straight-through cable
crossover cable
console
cable
30
Based
on the graphic above, which of the following occurs as each
host system comes on line in the topology?
The switch sends its MAC
address to each host.
The switch adds MAC address
to the bridge table as each host sends a frame.
Each host exchanges MAC
addresses with each other.
The switch listens for data
traffic to block since the switch lacks an IP
address.
31
Two peer hosts are exchanging data using TFTP.
During the current session, a datagram fails to arrive at the
destination. Which statement is true regarding the
retransmission of the datagram?
Datagram retransmission
requires user authentication.
Datagram retransmission is
controlled by the application.
Datagram retransmission
relies on the acknowledgements at transport layer.
Datagram retransmission
occurs when the retransmission timer expires in the source
host.
32
Which type of address is
192.168.170.112/28?
host address
subnetwork address
broadcast address
multicast
address
33
How does a switch learn the addresses of hosts
connected to its ports?
All source MAC addresses must
be manually configured in CAM.
The switch reads the source
MAC address on incoming frames and records it in CAM.
The switch reads the
destination MAC address on incoming frames and records it in
CAM.
If a switch port is full
duplex, the switch reads both the source and destination MAC
addresses on incoming frames and records them in CAM.
34
Which protocols are TCP/IP application layer
protocols? (Choose two.)
TFTP
IP
TCP
UDP
DNS
35
Refer
to the exhibit. How many broadcast domains are shown?
three
four
five
six
eight
ten
36
Refer
to the exhibit. Which type of UTP cable should be used to
connect Host A to Switch1?
rollover
console
crossover
straight-through
37
A user initiates three simultaneous FTP
connections from the local host to the same FTP server. Which
OSI layer is responsible for establishing and managing these
different FTP connections?
application
session
transport
network
data
link
38
In
the exhibit, the connections between the devices are labeled
A, B, C, D, and E. For each connection, what is the correct
UTP cable to use?
Which
cable diagram displays the end to end pinout for a crossover
cable used with Cisco devices?
Cable A
Cable B
Cable C
Cable
D
40
Refer
to the exhibit. A network associate needs to establish an
Ethernet connection between Host A and Host B. However, the
distance between the two hosts is further than the cabling
standards allow. Which two devices that operate at the
physical layer of the OSI can be used to allow Host A and Host
B to communicate? (Choose two.)
switch
hub
bridge
router
repeater
41
Refer
to the exhibit. Workstation 1 pings the Fa0/1 interface of
Router 1. Which MAC address will workstation 1 obtain during
the ARP request for this communication?
00-06-5B-88-DF-C3
00-B0-D0-7F-F7-46
00-0F-24-85-75-C0
00-0B-E5-64-BD-44
00-08-A3-B6-CE-02
00-08-A3-B6-CE-03
42
Refer
to the exhibit. A network technician is trying to determine
the correct IP address configuration for Host A. What is a
valid configuration for Host A?
IP address: 192.168.100.19;
Subnet Mask: 255.255.255.248; Default Gateway:
192.16.1.2
IP address: 192.168.100.20;
Subnet Mask: 255.255.255.240; Default Gateway:
192.168.100.17
IP address: 192.168.100.21;
Subnet Mask: 255.255.255.248; Default Gateway:
192.168.100.18
IP address: 192.168.100.22;
Subnet Mask: 255.255.255.240; Default Gateway: 10.1.1.5
IP address: 192.168.100.30;
Subnet Mask: 255.255.255.240; Default Gateway:
192.168.1.1
IP address: 192.168.100.31;
Subnet Mask: 255.255.255.240; Default Gateway:
192.168.100.18
43
Which subnet masks could be used when subnetting
a Class B IP address? (Choose two.)
255.255.255.240
255.255.192.0
255.255.0.0
255.192.0.0
240.0.0.0
255.0.0.0
44
A network administrator has added a new switch
to the network. The new switch connects to an existing switch
that is already installed. Which UTP cable correctly connects
the new switch to the existing switch?
crossover
rollover
straight-through
console
45
A
technician is testing connectivity between the devices using
the ping command. Pings between Host B and Host A were
successful. The technician could not ping the R3
address 172.16.3.2 from Host A. The technician issued ipconfig from Host A and saw the information displayed
in the exhibit. What is the most likely problem?
The IP address of Host A is
incorrect.
The subnet mask of Host A is
incorrect.
The default gateway of Host A
is incorrect.
Host A is properly
configured. Some other problem exists in the
internetwork.
46
A router interface has been assigned an IP
address of 172.16.192.166 with a mask of 255.255.255.248. To
which subnet does the IP address belong?
172.16.0.0
172.16.192.0
172.16.192.128
172.16.192.160
172.16.192.168
172.16.192.176
47
How
many collision domains are shown in the diagram?
three
four
five
six
seven
eight
48
A large company has a network that is constantly
changing. The routing tables in the routers need to be
adjusted to reflect the changes in the routing paths. What
type of routing would the network administrator
implement?
static routes
dynamic routing
protocols
only default routes
none. No routing is
necessary.
49
Refer
to the exhibit. The hub and the switch are operating using
factory default settings. Which hosts will receive the frame
if host A transmits a broadcast frame?
Only workstation B and the
router will receive the data.
Workstations B, C, D, E, and
the router will receive the data.
Only workstations connected
to the hub will receive the data.
Workstations B, C, D, E, and
the router will receive the data and it will be forwarded into
the Internet.
